Merge branch 'master' into for_paulus

CREDITS

@@ -2571,6 +2571,16 @@ S: Subiaco, 6008
 S: Perth, Western Australia
 S: Australia
 
+N: Miguel Ojeda Sandonis
+E: maxextreme@gmail.com
+D: Author: Auxiliary LCD Controller driver (ks0108)
+D: Author: Auxiliary LCD driver (cfag12864b)
+D: Author: Auxiliary LCD framebuffer driver (cfag12864bfb)
+D: Maintainer: Auxiliary display drivers tree (drivers/auxdisplay/*)
+S: C/ Mieses 20, 9-B
+S: Valladolid 47009
+S: Spain
+
 N: Greg Page
 E: gpage@sovereign.org
 D: IPX development and support

Documentation/ABI/testing/debugfs-pktcdvd

@@ -1,6 +1,6 @@
 What:           /debug/pktcdvd/pktcdvd[0-7]
 Date:           Oct. 2006
-KernelVersion:  2.6.19
+KernelVersion:  2.6.20
 Contact:        Thomas Maier <balagi@justmail.de>
 Description:
 
@@ -11,8 +11,7 @@ The pktcdvd module (packet writing driver) creates
 these files in debugfs:
 
 /debug/pktcdvd/pktcdvd[0-7]/
-    info            (0444) Lots of human readable driver
-                           statistics and infos. Multiple lines!
+    info            (0444) Lots of driver statistics and infos.
 
 Example:
 -------

Documentation/ABI/testing/sysfs-class-pktcdvd

@@ -1,6 +1,6 @@
 What:           /sys/class/pktcdvd/
 Date:           Oct. 2006
-KernelVersion:  2.6.19
+KernelVersion:  2.6.20
 Contact:        Thomas Maier <balagi@justmail.de>
 Description:
 

Documentation/DocBook/gadget.tmpl

@@ -482,13 +482,13 @@ slightly.
 <para>Gadget drivers
 rely on common USB structures and constants
 defined in the
-<filename>&lt;linux/usb_ch9.h&gt;</filename>
+<filename>&lt;linux/usb/ch9.h&gt;</filename>
 header file, which is standard in Linux 2.6 kernels.
 These are the same types and constants used by host
 side drivers (and usbcore).
 </para>
 
-!Iinclude/linux/usb_ch9.h
+!Iinclude/linux/usb/ch9.h
 </sect1>
 
 <sect1 id="core"><title>Core Objects and Methods</title>

Documentation/DocBook/kernel-api.tmpl

@@ -316,6 +316,9 @@ X!Earch/i386/kernel/mca.c
      <sect1><title>DMI Interfaces</title>
 !Edrivers/firmware/dmi_scan.c
      </sect1>
+     <sect1><title>EDD Interfaces</title>
+!Idrivers/firmware/edd.c
+     </sect1>
   </chapter>
 
   <chapter id="security">

Documentation/DocBook/stylesheet.xsl

@@ -4,4 +4,5 @@
 <param name="funcsynopsis.style">ansi</param>
 <param name="funcsynopsis.tabular.threshold">80</param>
 <!-- <param name="paper.type">A4</param> -->
+<param name="generate.section.toc.level">2</param>
 </stylesheet>

Documentation/DocBook/usb.tmpl

@@ -187,13 +187,13 @@
 
 <chapter><title>USB-Standard Types</title>
 
-    <para>In <filename>&lt;linux/usb_ch9.h&gt;</filename> you will find
+    <para>In <filename>&lt;linux/usb/ch9.h&gt;</filename> you will find
     the USB data types defined in chapter 9 of the USB specification.
     These data types are used throughout USB, and in APIs including
     this host side API, gadget APIs, and usbfs.
     </para>
 
-!Iinclude/linux/usb_ch9.h
+!Iinclude/linux/usb/ch9.h
 
     </chapter>
 
@@ -574,7 +574,7 @@ for (;;) {
 #include &lt;asm/byteorder.h&gt;</programlisting>
 	    The standard USB device model requests, from "Chapter 9" of
 	    the USB 2.0 specification, are automatically included from
-	    the <filename>&lt;linux/usb_ch9.h&gt;</filename> header.
+	    the <filename>&lt;linux/usb/ch9.h&gt;</filename> header.
 	    </para>
 
 	    <para>Unless noted otherwise, the ioctl requests

Documentation/auxdisplay/cfag12864b

@@ -0,0 +1,105 @@
+	===================================
+	cfag12864b LCD Driver Documentation
+	===================================
+
+License:		GPLv2
+Author & Maintainer:	Miguel Ojeda Sandonis <maxextreme@gmail.com>
+Date:			2006-10-27
+
+
+
+--------
+0. INDEX
+--------
+
+	1. DRIVER INFORMATION
+	2. DEVICE INFORMATION
+	3. WIRING
+	4. USERSPACE PROGRAMMING
+
+
+---------------------
+1. DRIVER INFORMATION
+---------------------
+
+This driver support one cfag12864b display at time.
+
+
+---------------------
+2. DEVICE INFORMATION
+---------------------
+
+Manufacturer:	Crystalfontz
+Device Name:	Crystalfontz 12864b LCD Series
+Device Code:	cfag12864b
+Webpage:	http://www.crystalfontz.com
+Device Webpage:	http://www.crystalfontz.com/products/12864b/
+Type:		LCD (Liquid Crystal Display)
+Width:		128
+Height:		64
+Colors:		2 (B/N)
+Controller:	ks0108
+Controllers:	2
+Pages:		8 each controller
+Addresses:	64 each page
+Data size:	1 byte each address
+Memory size:	2 * 8 * 64 * 1 = 1024 bytes = 1 Kbyte
+
+
+---------
+3. WIRING
+---------
+
+The cfag12864b LCD Series don't have official wiring.
+
+The common wiring is done to the parallel port as shown:
+
+Parallel Port                          cfag12864b
+
+  Name Pin#                            Pin# Name
+
+Strobe ( 1)------------------------------(17) Enable
+Data 0 ( 2)------------------------------( 4) Data 0
+Data 1 ( 3)------------------------------( 5) Data 1
+Data 2 ( 4)------------------------------( 6) Data 2
+Data 3 ( 5)------------------------------( 7) Data 3
+Data 4 ( 6)------------------------------( 8) Data 4
+Data 5 ( 7)------------------------------( 9) Data 5
+Data 6 ( 8)------------------------------(10) Data 6
+Data 7 ( 9)------------------------------(11) Data 7
+       (10)                      [+5v]---( 1) Vdd
+       (11)                      [GND]---( 2) Ground
+       (12)                      [+5v]---(14) Reset
+       (13)                      [GND]---(15) Read / Write
+  Line (14)------------------------------(13) Controller Select 1
+       (15)
+  Init (16)------------------------------(12) Controller Select 2
+Select (17)------------------------------(16) Data / Instruction
+Ground (18)---[GND]              [+5v]---(19) LED +
+Ground (19)---[GND]
+Ground (20)---[GND]              E    A             Values:
+Ground (21)---[GND]       [GND]---[P1]---(18) Vee    · R = Resistor = 22 ohm
+Ground (22)---[GND]                |                 · P1 = Preset = 10 Kohm
+Ground (23)---[GND]       ----   S ------( 3) V0     · P2 = Preset = 1 Kohm
+Ground (24)---[GND]       |  |
+Ground (25)---[GND] [GND]---[P2]---[R]---(20) LED -
+
+
+------------------------
+4. USERSPACE PROGRAMMING
+------------------------
+
+The cfag12864bfb describes a framebuffer device (/dev/fbX).
+
+It has a size of 1024 bytes = 1 Kbyte.
+Each bit represents one pixel. If the bit is high, the pixel will
+turn on. If the pixel is low, the pixel will turn off.
+
+You can use the framebuffer as a file: fopen, fwrite, fclose...
+Although the LCD won't get updated until the next refresh time arrives.
+
+Also, you can mmap the framebuffer: open & mmap, munmap & close...
+which is the best option for most uses.
+
+Check Documentation/auxdisplay/cfag12864b-example.c
+for a real working userspace complete program with usage examples.

Documentation/auxdisplay/cfag12864b-example.c

@@ -0,0 +1,282 @@
+/*
+ *    Filename: cfag12864b-example.c
+ *     Version: 0.1.0
+ * Description: cfag12864b LCD userspace example program
+ *     License: GPLv2
+ *
+ *      Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
+ *        Date: 2006-10-31
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*
+ * ------------------------
+ * start of cfag12864b code
+ * ------------------------
+ */
+
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#define CFAG12864B_WIDTH		(128)
+#define CFAG12864B_HEIGHT		(64)
+#define CFAG12864B_SIZE			(128 * 64 / 8)
+#define CFAG12864B_BPB			(8)
+#define CFAG12864B_ADDRESS(x, y)	((y) * CFAG12864B_WIDTH / \
+					CFAG12864B_BPB + (x) / CFAG12864B_BPB)
+#define CFAG12864B_BIT(n)		(((unsigned char) 1) << (n))
+
+#undef CFAG12864B_DOCHECK
+#ifdef CFAG12864B_DOCHECK
+	#define CFAG12864B_CHECK(x, y)		((x) < CFAG12864B_WIDTH && \
+						(y) < CFAG12864B_HEIGHT)
+#else
+	#define CFAG12864B_CHECK(x, y)		(1)
+#endif
+
+int cfag12864b_fd;
+unsigned char * cfag12864b_mem;
+unsigned char cfag12864b_buffer[CFAG12864B_SIZE];
+
+/*
+ * init a cfag12864b framebuffer device
+ *
+ * No error:       return = 0
+ * Unable to open: return = -1
+ * Unable to mmap: return = -2
+ */
+int cfag12864b_init(char *path)
+{
+	cfag12864b_fd = open(path, O_RDWR);
+	if (cfag12864b_fd == -1)
+		return -1;
+
+	cfag12864b_mem = mmap(0, CFAG12864B_SIZE, PROT_READ | PROT_WRITE,
+		MAP_SHARED, cfag12864b_fd, 0);
+	if (cfag12864b_mem == MAP_FAILED) {
+		close(cfag12864b_fd);
+		return -2;
+	}
+
+	return 0;
+}
+
+/*
+ * exit a cfag12864b framebuffer device
+ */
+void cfag12864b_exit(void)
+{
+	munmap(cfag12864b_mem, CFAG12864B_SIZE);
+	close(cfag12864b_fd);
+}
+
+/*
+ * set (x, y) pixel
+ */
+void cfag12864b_set(unsigned char x, unsigned char y)
+{
+	if (CFAG12864B_CHECK(x, y))
+		cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] |=
+			CFAG12864B_BIT(x % CFAG12864B_BPB);
+}
+
+/*
+ * unset (x, y) pixel
+ */
+void cfag12864b_unset(unsigned char x, unsigned char y)
+{
+	if (CFAG12864B_CHECK(x, y))
+		cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &=
+			~CFAG12864B_BIT(x % CFAG12864B_BPB);
+}
+
+/*
+ * is set (x, y) pixel?
+ *
+ * Pixel off: return = 0
+ * Pixel on:  return = 1
+ */
+unsigned char cfag12864b_isset(unsigned char x, unsigned char y)
+{
+	if (CFAG12864B_CHECK(x, y))
+		if (cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &
+			CFAG12864B_BIT(x % CFAG12864B_BPB))
+			return 1;
+
+	return 0;
+}
+
+/*
+ * not (x, y) pixel
+ */
+void cfag12864b_not(unsigned char x, unsigned char y)
+{
+	if (cfag12864b_isset(x, y))
+		cfag12864b_unset(x, y);
+	else
+		cfag12864b_set(x, y);
+}
+
+/*
+ * fill (set all pixels)
+ */
+void cfag12864b_fill(void)
+{
+	unsigned short i;
+
+	for (i = 0; i < CFAG12864B_SIZE; i++)
+		cfag12864b_buffer[i] = 0xFF;
+}
+
+/*
+ * clear (unset all pixels)
+ */
+void cfag12864b_clear(void)
+{
+	unsigned short i;
+
+	for (i = 0; i < CFAG12864B_SIZE; i++)
+		cfag12864b_buffer[i] = 0;
+}
+
+/*
+ * format a [128*64] matrix
+ *
+ * Pixel off: src[i] = 0
+ * Pixel on:  src[i] > 0
+ */
+void cfag12864b_format(unsigned char * matrix)
+{
+	unsigned char i, j, n;
+
+	for (i = 0; i < CFAG12864B_HEIGHT; i++)
+	for (j = 0; j < CFAG12864B_WIDTH / CFAG12864B_BPB; j++) {
+		cfag12864b_buffer[i * CFAG12864B_WIDTH / CFAG12864B_BPB +
+			j] = 0;
+		for (n = 0; n < CFAG12864B_BPB; n++)
+			if (matrix[i * CFAG12864B_WIDTH +
+				j * CFAG12864B_BPB + n])
+				cfag12864b_buffer[i * CFAG12864B_WIDTH /
+					CFAG12864B_BPB + j] |=
+					CFAG12864B_BIT(n);
+	}
+}
+
+/*
+ * blit buffer to lcd
+ */
+void cfag12864b_blit(void)
+{
+	memcpy(cfag12864b_mem, cfag12864b_buffer, CFAG12864B_SIZE);
+}
+
+/*
+ * ----------------------
+ * end of cfag12864b code
+ * ----------------------
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#define EXAMPLES	6
+
+void example(unsigned char n)
+{
+	unsigned short i, j;
+	unsigned char matrix[CFAG12864B_WIDTH * CFAG12864B_HEIGHT];
+
+	if (n > EXAMPLES)
+		return;
+
+	printf("Example %i/%i - ", n, EXAMPLES);
+
+	switch (n) {
+	case 1:
+		printf("Draw points setting bits");
+		cfag12864b_clear();
+		for (i = 0; i < CFAG12864B_WIDTH; i += 2)
+			for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
+				cfag12864b_set(i, j);
+		break;
+
+	case 2:
+		printf("Clear the LCD");
+		cfag12864b_clear();
+		break;
+
+	case 3:
+		printf("Draw rows formatting a [128*64] matrix");
+		memset(matrix, 0, CFAG12864B_WIDTH * CFAG12864B_HEIGHT);
+		for (i = 0; i < CFAG12864B_WIDTH; i++)
+			for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
+				matrix[j * CFAG12864B_WIDTH + i] = 1;
+		cfag12864b_format(matrix);
+		break;
+
+	case 4:
+		printf("Fill the lcd");
+		cfag12864b_fill();
+		break;
+
+	case 5:
+		printf("Draw columns unsetting bits");
+		for (i = 0; i < CFAG12864B_WIDTH; i += 2)
+			for (j = 0; j < CFAG12864B_HEIGHT; j++)
+				cfag12864b_unset(i, j);
+		break;
+
+	case 6:
+		printf("Do negative not-ing all bits");
+		for (i = 0; i < CFAG12864B_WIDTH; i++)
+			for (j = 0; j < CFAG12864B_HEIGHT; j ++)
+				cfag12864b_not(i, j);
+		break;
+	}
+
+	puts(" - [Press Enter]");
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned char n;
+
+	if (argc != 2) {
+		printf(
+			"Sintax:  %s fbdev\n"
+			"Usually: /dev/fb0, /dev/fb1...\n", argv[0]);
+		return -1;
+	}
+
+	if (cfag12864b_init(argv[1])) {
+		printf("Can't init %s fbdev\n", argv[1]);
+		return -2;
+	}
+
+	for (n = 1; n <= EXAMPLES; n++) {
+		example(n);
+		cfag12864b_blit();
+		while (getchar() != '\n');
+	}
+
+	cfag12864b_exit();
+
+	return 0;
+}

Documentation/auxdisplay/ks0108

@@ -0,0 +1,55 @@
+	==========================================
+	ks0108 LCD Controller Driver Documentation
+	==========================================
+
+License:		GPLv2
+Author & Maintainer:	Miguel Ojeda Sandonis <maxextreme@gmail.com>
+Date:			2006-10-27
+
+
+
+--------
+0. INDEX
+--------
+
+	1. DRIVER INFORMATION
+	2. DEVICE INFORMATION
+	3. WIRING
+
+
+---------------------
+1. DRIVER INFORMATION
+---------------------
+
+This driver support the ks0108 LCD controller.
+
+
+---------------------
+2. DEVICE INFORMATION
+---------------------
+
+Manufacturer:	Samsung
+Device Name:	KS0108 LCD Controller
+Device Code:	ks0108
+Webpage:	-
+Device Webpage:	-
+Type:		LCD Controller (Liquid Crystal Display Controller)
+Width:		64
+Height:		64
+Colors:		2 (B/N)
+Pages:		8
+Addresses:	64 each page
+Data size:	1 byte each address
+Memory size:	8 * 64 * 1 = 512 bytes
+
+
+---------
+3. WIRING
+---------
+
+The driver supports data parallel port wiring.
+
+If you aren't building LCD related hardware, you should check
+your LCD specific wiring information in the same folder.
+
+For example, check Documentation/auxdisplay/cfag12864b.

Documentation/cdrom/packet-writing.txt

@@ -93,7 +93,7 @@ Notes
 Using the pktcdvd sysfs interface
 ---------------------------------
 
-Since Linux 2.6.19, the pktcdvd module has a sysfs interface
+Since Linux 2.6.20, the pktcdvd module has a sysfs interface
 and can be controlled by it. For example the "pktcdvd" tool uses
 this interface. (see http://people.freenet.de/BalaGi#pktcdvd )
 

Documentation/crypto/api-intro.txt

@@ -193,6 +193,7 @@ Original developers of the crypto algorithms:
   Kartikey Mahendra Bhatt (CAST6)
   Jon Oberheide (ARC4)
   Jouni Malinen (Michael MIC)
+  NTT(Nippon Telegraph and Telephone Corporation) (Camellia)
 
 SHA1 algorithm contributors:
   Jean-Francois Dive
@@ -246,6 +247,9 @@ Tiger algorithm contributors:
 VIA PadLock contributors:
   Michal Ludvig
 
+Camellia algorithm contributors:
+  NTT(Nippon Telegraph and Telephone Corporation) (Camellia)
+
 Generic scatterwalk code by Adam J. Richter <adam@yggdrasil.com>
 
 Please send any credits updates or corrections to:

Documentation/driver-model/devres.txt

@@ -0,0 +1,268 @@
+Devres - Managed Device Resource
+================================
+
+Tejun Heo	<teheo@suse.de>
+
+First draft	10 January 2007
+
+
+1. Intro			: Huh? Devres?
+2. Devres			: Devres in a nutshell
+3. Devres Group			: Group devres'es and release them together
+4. Details			: Life time rules, calling context, ...
+5. Overhead			: How much do we have to pay for this?
+6. List of managed interfaces	: Currently implemented managed interfaces
+
+
+  1. Intro
+  --------
+
+devres came up while trying to convert libata to use iomap.  Each
+iomapped address should be kept and unmapped on driver detach.  For
+example, a plain SFF ATA controller (that is, good old PCI IDE) in
+native mode makes use of 5 PCI BARs and all of them should be
+maintained.
+
+As with many other device drivers, libata low level drivers have
+sufficient bugs in ->remove and ->probe failure path.  Well, yes,
+that's probably because libata low level driver developers are lazy
+bunch, but aren't all low level driver developers?  After spending a
+day fiddling with braindamaged hardware with no document or
+braindamaged document, if it's finally working, well, it's working.
+
+For one reason or another, low level drivers don't receive as much
+attention or testing as core code, and bugs on driver detach or
+initilaization failure doesn't happen often enough to be noticeable.
+Init failure path is worse because it's much less travelled while
+needs to handle multiple entry points.
+
+So, many low level drivers end up leaking resources on driver detach
+and having half broken failure path implementation in ->probe() which
+would leak resources or even cause oops when failure occurs.  iomap
+adds more to this mix.  So do msi and msix.
+
+
+  2. Devres
+  ---------
+
+devres is basically linked list of arbitrarily sized memory areas
+associated with a struct device.  Each devres entry is associated with
+a release function.  A devres can be released in several ways.  No
+matter what, all devres entries are released on driver detach.  On
+release, the associated release function is invoked and then the
+devres entry is freed.
+
+Managed interface is created for resources commonly used by device
+drivers using devres.  For example, coherent DMA memory is acquired
+using dma_alloc_coherent().  The managed version is called
+dmam_alloc_coherent().  It is identical to dma_alloc_coherent() except
+for the DMA memory allocated using it is managed and will be
+automatically released on driver detach.  Implementation looks like
+the following.
+
+  struct dma_devres {
+	size_t		size;
+	void		*vaddr;
+	dma_addr_t	dma_handle;
+  };
+
+  static void dmam_coherent_release(struct device *dev, void *res)
+  {
+	struct dma_devres *this = res;
+
+	dma_free_coherent(dev, this->size, this->vaddr, this->dma_handle);
+  }
+
+  dmam_alloc_coherent(dev, size, dma_handle, gfp)
+  {
+	struct dma_devres *dr;
+	void *vaddr;
+
+	dr = devres_alloc(dmam_coherent_release, sizeof(*dr), gfp);
+	...
+
+	/* alloc DMA memory as usual */
+	vaddr = dma_alloc_coherent(...);
+	...
+
+	/* record size, vaddr, dma_handle in dr */
+	dr->vaddr = vaddr;
+	...
+
+	devres_add(dev, dr);
+
+	return vaddr;
+  }
+
+If a driver uses dmam_alloc_coherent(), the area is guaranteed to be
+freed whether initialization fails half-way or the device gets
+detached.  If most resources are acquired using managed interface, a
+driver can have much simpler init and exit code.  Init path basically
+looks like the following.
+
+  my_init_one()
+  {
+	struct mydev *d;
+
+	d = devm_kzalloc(dev, sizeof(*d), GFP_KERNEL);
+	if (!d)
+		return -ENOMEM;
+
+	d->ring = dmam_alloc_coherent(...);
+	if (!d->ring)
+		return -ENOMEM;
+
+	if (check something)
+		return -EINVAL;
+	...
+
+	return register_to_upper_layer(d);
+  }
+
+And exit path,
+
+  my_remove_one()
+  {
+	unregister_from_upper_layer(d);
+	shutdown_my_hardware();
+  }
+
+As shown above, low level drivers can be simplified a lot by using
+devres.  Complexity is shifted from less maintained low level drivers
+to better maintained higher layer.  Also, as init failure path is
+shared with exit path, both can get more testing.
+
+
+  3. Devres group
+  ---------------
+
+Devres entries can be grouped using devres group.  When a group is
+released, all contained normal devres entries and properly nested
+groups are released.  One usage is to rollback series of acquired
+resources on failure.  For example,
+
+  if (!devres_open_group(dev, NULL, GFP_KERNEL))
+	return -ENOMEM;
+
+  acquire A;
+  if (failed)
+	goto err;
+
+  acquire B;
+  if (failed)
+	goto err;
+  ...
+
+  devres_remove_group(dev, NULL);
+  return 0;
+
+ err:
+  devres_release_group(dev, NULL);
+  return err_code;
+
+As resource acquision failure usually means probe failure, constructs
+like above are usually useful in midlayer driver (e.g. libata core
+layer) where interface function shouldn't have side effect on failure.
+For LLDs, just returning error code suffices in most cases.
+
+Each group is identified by void *id.  It can either be explicitly
+specified by @id argument to devres_open_group() or automatically
+created by passing NULL as @id as in the above example.  In both
+cases, devres_open_group() returns the group's id.  The returned id
+can be passed to other devres functions to select the target group.
+If NULL is given to those functions, the latest open group is
+selected.
+
+For example, you can do something like the following.
+
+  int my_midlayer_create_something()
+  {
+	if (!devres_open_group(dev, my_midlayer_create_something, GFP_KERNEL))
+		return -ENOMEM;
+
+	...
+
+	devres_close_group(dev, my_midlayer_something);
+	return 0;
+  }
+
+  void my_midlayer_destroy_something()
+  {
+	devres_release_group(dev, my_midlayer_create_soemthing);
+  }
+
+
+  4. Details
+  ----------
+
+Lifetime of a devres entry begins on devres allocation and finishes
+when it is released or destroyed (removed and freed) - no reference
+counting.
+
+devres core guarantees atomicity to all basic devres operations and
+has support for single-instance devres types (atomic
+lookup-and-add-if-not-found).  Other than that, synchronizing
+concurrent accesses to allocated devres data is caller's
+responsibility.  This is usually non-issue because bus ops and
+resource allocations already do the job.
+
+For an example of single-instance devres type, read pcim_iomap_table()
+in lib/iomap.c.
+
+All devres interface functions can be called without context if the
+right gfp mask is given.
+
+
+  5. Overhead
+  -----------
+
+Each devres bookkeeping info is allocated together with requested data
+area.  With debug option turned off, bookkeeping info occupies 16
+bytes on 32bit machines and 24 bytes on 64bit (three pointers rounded
+up to ull alignment).  If singly linked list is used, it can be
+reduced to two pointers (8 bytes on 32bit, 16 bytes on 64bit).
+
+Each devres group occupies 8 pointers.  It can be reduced to 6 if
+singly linked list is used.
+
+Memory space overhead on ahci controller with two ports is between 300
+and 400 bytes on 32bit machine after naive conversion (we can
+certainly invest a bit more effort into libata core layer).
+
+
+  6. List of managed interfaces
+  -----------------------------
+
+IO region
+  devm_request_region()
+  devm_request_mem_region()
+  devm_release_region()
+  devm_release_mem_region()
+
+IRQ
+  devm_request_irq()
+  devm_free_irq()
+
+DMA
+  dmam_alloc_coherent()
+  dmam_free_coherent()
+  dmam_alloc_noncoherent()
+  dmam_free_noncoherent()
+  dmam_declare_coherent_memory()
+  dmam_pool_create()
+  dmam_pool_destroy()
+
+PCI
+  pcim_enable_device()	: after success, all PCI ops become managed
+  pcim_pin_device()	: keep PCI device enabled after release
+
+IOMAP
+  devm_ioport_map()
+  devm_ioport_unmap()
+  devm_ioremap()
+  devm_ioremap_nocache()
+  devm_iounmap()
+  pcim_iomap()
+  pcim_iounmap()
+  pcim_iomap_table()	: array of mapped addresses indexed by BAR
+  pcim_iomap_regions()	: do request_region() and iomap() on multiple BARs

Documentation/drivers/edac/edac.txt

@@ -339,7 +339,21 @@ Device Symlink:
 
 	'device'
 
-	Symlink to the memory controller device
+	Symlink to the memory controller device.
+
+Sdram memory scrubbing rate:
+
+	'sdram_scrub_rate'
+
+	Read/Write attribute file that controls memory scrubbing. The scrubbing
+	rate is set by writing a minimum bandwith in bytes/sec to the attribute
+	file. The rate will be translated to an internal value that gives at
+	least the specified rate.
+
+	Reading the file will return the actual scrubbing rate employed.
+
+	If configuration fails or memory scrubbing is not implemented, the value
+	of the attribute file will be -1.
 
 
 

Documentation/fb/s3fb.txt

@@ -0,0 +1,78 @@
+
+	s3fb - fbdev driver for S3 Trio/Virge chips
+	===========================================
+
+
+Supported Hardware
+==================
+
+	S3 Trio32
+	S3 Trio64 (and variants V+, UV+, V2/DX, V2/GX)
+	S3 Virge  (and variants VX, DX, GX and GX2+)
+	S3 Plato/PX		(completely untested)
+	S3 Aurora64V+		(completely untested)
+
+	- only PCI bus supported
+	- only BIOS initialized VGA devices supported
+	- probably not working on big endian
+
+I tested s3fb on Trio64 (plain, V+ and V2/DX) and Virge (plain, VX, DX),
+all on i386.
+
+
+Supported Features
+==================
+
+	*  4 bpp pseudocolor modes (with 18bit palette, two variants)
+	*  8 bpp pseudocolor mode (with 18bit palette)
+	* 16 bpp truecolor modes (RGB 555 and RGB 565)
+	* 24 bpp truecolor mode (RGB 888) on (only on Virge VX)
+	* 32 bpp truecolor mode (RGB 888) on (not on Virge VX)
+	* text mode (activated by bpp = 0)
+	* interlaced mode variant (not available in text mode)
+	* doublescan mode variant (not available in text mode)
+	* panning in both directions
+	* suspend/resume support
+	* DPMS support
+
+Text mode is supported even in higher resolutions, but there is limitation
+to lower pixclocks (maximum between 50-60 MHz, depending on specific hardware).
+This limitation is not enforced by driver. Text mode supports 8bit wide fonts
+only (hardware limitation) and 16bit tall fonts (driver limitation).
+
+There are two 4 bpp modes. First mode (selected if nonstd == 0) is mode with
+packed pixels, high nibble first. Second mode (selected if nonstd == 1) is mode
+with interleaved planes (1 byte interleave), MSB first. Both modes support
+8bit wide fonts only (driver limitation).
+
+Suspend/resume works on systems that initialize video card during resume and
+if device is active (for example used by fbcon).
+
+
+Missing Features
+================
+(alias TODO list)
+
+	* secondary (not initialized by BIOS) device support
+   	* big endian support
+	* Zorro bus support
+	* MMIO support
+	* 24 bpp mode support on more cards
+	* support for fontwidths != 8 in 4 bpp modes
+	* support for fontheight != 16 in text mode
+	* composite and external sync (is anyone able to test this?)
+	* hardware cursor
+	* video overlay support
+	* vsync synchronization
+	* feature connector support
+	* acceleration support (8514-like 2D, Virge 3D, busmaster transfers)
+	* better values for some magic registers (performance issues)
+
+
+Known bugs
+==========
+
+	* cursor disable in text mode doesn't work
+
+--
+Ondrej Zajicek <santiago@crfreenet.org>

Documentation/feature-removal-schedule.txt

@@ -50,22 +50,6 @@ Who:	Dan Dennedy <dan@dennedy.org>, Stefan Richter <stefanr@s5r6.in-berlin.de>
 
 ---------------------------
 
-What:	ieee1394 core's unused exports (CONFIG_IEEE1394_EXPORT_FULL_API)
-When:	January 2007
-Why:	There are no projects known to use these exported symbols, except
-	dfg1394 (uses one symbol whose functionality is core-internal now).
-Who:	Stefan Richter <stefanr@s5r6.in-berlin.de>
-
----------------------------
-
-What:	ieee1394's *_oui sysfs attributes (CONFIG_IEEE1394_OUI_DB)
-When:	January 2007
-Files:	drivers/ieee1394/: oui.db, oui2c.sh
-Why:	big size, little value
-Who:	Stefan Richter <stefanr@s5r6.in-berlin.de>
-
----------------------------
-
 What:	Video4Linux API 1 ioctls and video_decoder.h from Video devices.
 When:	December 2006
 Why:	V4L1 AP1 was replaced by V4L2 API. during migration from 2.4 to 2.6
@@ -186,18 +170,6 @@ Who:	Greg Kroah-Hartman <gregkh@suse.de>
 
 ---------------------------
 
-What:	find_trylock_page
-When:	January 2007
-Why:	The interface no longer has any callers left in the kernel. It
-	is an odd interface (compared with other find_*_page functions), in
-	that it does not take a refcount to the page, only the page lock.
-	It should be replaced with find_get_page or find_lock_page if possible.
-	This feature removal can be reevaluated if users of the interface
-	cannot cleanly use something else.
-Who:	Nick Piggin <npiggin@suse.de>
-
----------------------------
-
 What:	Interrupt only SA_* flags
 When:	Januar 2007
 Why:	The interrupt related SA_* flags are replaced by IRQF_* to move them
@@ -243,6 +215,13 @@ Who:	Jean Delvare <khali@linux-fr.org>,
 
 ---------------------------
 
+What:  drivers depending on OBSOLETE_OSS
+When:  options in 2.6.22, code in 2.6.24
+Why:   OSS drivers with ALSA replacements
+Who:   Adrian Bunk <bunk@stusta.de>
+
+---------------------------
+
 What:	IPv4 only connection tracking/NAT/helpers
 When:	2.6.22
 Why:	The new layer 3 independant connection tracking replaces the old
@@ -340,3 +319,18 @@ Why:    In kernel tree version of driver is unmaintained. Sk98lin driver
 	replaced by the skge driver. 
 Who:    Stephen Hemminger <shemminger@osdl.org>
 
+---------------------------
+
+What:	Compaq touchscreen device emulation
+When:	Oct 2007
+Files:	drivers/input/tsdev.c
+Why:	The code says it was obsolete when it was written in 2001.
+	tslib is a userspace library which does anything tsdev can do and
+	much more besides in userspace where this code belongs. There is no
+	longer any need for tsdev and applications should have converted to
+	use tslib by now.
+	The name "tsdev" is also extremely confusing and lots of people have
+	it loaded when they don't need/use it.
+Who:	Richard Purdie <rpurdie@rpsys.net>
+
+---------------------------

Documentation/filesystems/relay.txt

@@ -157,7 +157,7 @@ TBD(curr. line MT:/API/)
   channel management functions:
 
     relay_open(base_filename, parent, subbuf_size, n_subbufs,
-               callbacks)
+               callbacks, private_data)
     relay_close(chan)
     relay_flush(chan)
     relay_reset(chan)
@@ -251,7 +251,7 @@ static struct rchan_callbacks relay_callbacks =
 
 And an example relay_open() invocation using them:
 
-  chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks);
+  chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks, NULL);
 
 If the create_buf_file() callback fails, or isn't defined, channel
 creation and thus relay_open() will fail.
@@ -289,6 +289,11 @@ they use the proper locking for such a buffer, either by wrapping
 writes in a spinlock, or by copying a write function from relay.h and
 creating a local version that internally does the proper locking.
 
+The private_data passed into relay_open() allows clients to associate
+user-defined data with a channel, and is immediately available
+(including in create_buf_file()) via chan->private_data or
+buf->chan->private_data.
+
 Channel 'modes'
 ---------------
 

Documentation/filesystems/ufs.txt

@@ -21,7 +21,7 @@ ufstype=type_of_ufs
 		supported as read-write
 
 	ufs2    used in FreeBSD 5.x
-		supported as read-only
+		supported as read-write
 
 	5xbsd	synonym for ufs2
 
@@ -50,12 +50,11 @@ ufstype=type_of_ufs
 POSSIBLE PROBLEMS
 =================
 
-There is still bug in reallocation of fragment, in file fs/ufs/balloc.c, 
-line 364. But it seems working on current buffer cache configuration.
+See next section, if you have any.
 
 
 BUG REPORTS
 ===========
 
-Any ufs bug report you can send to daniel.pirkl@email.cz (do not send 
-partition tables bug reports.)
+Any ufs bug report you can send to daniel.pirkl@email.cz or
+to dushistov@mail.ru (do not send partition tables bug reports).

Documentation/gpio.txt

@@ -0,0 +1,271 @@
+GPIO Interfaces
+
+This provides an overview of GPIO access conventions on Linux.
+
+
+What is a GPIO?
+===============
+A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
+digital signal.  They are provided from many kinds of chip, and are familiar
+to Linux developers working with embedded and custom hardware.  Each GPIO
+represents a bit connected to a particular pin, or "ball" on Ball Grid Array
+(BGA) packages.  Board schematics show which external hardware connects to
+which GPIOs.  Drivers can be written generically, so that board setup code
+passes such pin configuration data to drivers.
+
+System-on-Chip (SOC) processors heavily rely on GPIOs.  In some cases, every
+non-dedicated pin can be configured as a GPIO; and most chips have at least
+several dozen of them.  Programmable logic devices (like FPGAs) can easily
+provide GPIOs; multifunction chips like power managers, and audio codecs
+often have a few such pins to help with pin scarcity on SOCs; and there are
+also "GPIO Expander" chips that connect using the I2C or SPI serial busses.
+Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
+firmware knowing how they're used).
+
+The exact capabilities of GPIOs vary between systems.  Common options:
+
+  - Output values are writable (high=1, low=0).  Some chips also have
+    options about how that value is driven, so that for example only one
+    value might be driven ... supporting "wire-OR" and similar schemes
+    for the other value.
+
+  - Input values are likewise readable (1, 0).  Some chips support readback
+    of pins configured as "output", which is very useful in such "wire-OR"
+    cases (to support bidirectional signaling).  GPIO controllers may have
+    input de-glitch logic, sometimes with software controls.
+
+  - Inputs can often be used as IRQ signals, often edge triggered but
+    sometimes level triggered.  Such IRQs may be configurable as system
+    wakeup events, to wake the system from a low power state.
+
+  - Usually a GPIO will be configurable as either input or output, as needed
+    by different product boards; single direction ones exist too.
+
+  - Most GPIOs can be accessed while holding spinlocks, but those accessed
+    through a serial bus normally can't.  Some systems support both types.
+
+On a given board each GPIO is used for one specific purpose like monitoring
+MMC/SD card insertion/removal, detecting card writeprotect status, driving
+a LED, configuring a transceiver, bitbanging a serial bus, poking a hardware
+watchdog, sensing a switch, and so on.
+
+
+GPIO conventions
+================
+Note that this is called a "convention" because you don't need to do it this
+way, and it's no crime if you don't.  There **are** cases where portability
+is not the main issue; GPIOs are often used for the kind of board-specific
+glue logic that may even change between board revisions, and can't ever be
+used on a board that's wired differently.  Only least-common-denominator
+functionality can be very portable.  Other features are platform-specific,
+and that can be critical for glue logic.
+
+Plus, this doesn't define an implementation framework, just an interface.
+One platform might implement it as simple inline functions accessing chip
+registers; another might implement it by delegating through abstractions
+used for several very different kinds of GPIO controller.
+
+That said, if the convention is supported on their platform, drivers should
+use it when possible:
+
+	#include <asm/gpio.h>
+
+If you stick to this convention then it'll be easier for other developers to
+see what your code is doing, and help maintain it.
+
+
+Identifying GPIOs
+-----------------
+GPIOs are identified by unsigned integers in the range 0..MAX_INT.  That
+reserves "negative" numbers for other purposes like marking signals as
+"not available on this board", or indicating faults.
+
+Platforms define how they use those integers, and usually #define symbols
+for the GPIO lines so that board-specific setup code directly corresponds
+to the relevant schematics.  In contrast, drivers should only use GPIO
+numbers passed to them from that setup code, using platform_data to hold
+board-specific pin configuration data (along with other board specific
+data they need).  That avoids portability problems.
+
+So for example one platform uses numbers 32-159 for GPIOs; while another
+uses numbers 0..63 with one set of GPIO controllers, 64-79 with another
+type of GPIO controller, and on one particular board 80-95 with an FPGA.
+The numbers need not be contiguous; either of those platforms could also
+use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
+
+Whether a platform supports multiple GPIO controllers is currently a
+platform-specific implementation issue.
+
+
+Using GPIOs
+-----------
+One of the first things to do with a GPIO, often in board setup code when
+setting up a platform_device using the GPIO, is mark its direction:
+
+	/* set as input or output, returning 0 or negative errno */
+	int gpio_direction_input(unsigned gpio);
+	int gpio_direction_output(unsigned gpio);
+
+The return value is zero for success, else a negative errno.  It should
+be checked, since the get/set calls don't have error returns and since
+misconfiguration is possible.  (These calls could sleep.)
+
+Setting the direction can fail if the GPIO number is invalid, or when
+that particular GPIO can't be used in that mode.  It's generally a bad
+idea to rely on boot firmware to have set the direction correctly, since
+it probably wasn't validated to do more than boot Linux.  (Similarly,
+that board setup code probably needs to multiplex that pin as a GPIO,
+and configure pullups/pulldowns appropriately.)
+
+
+Spinlock-Safe GPIO access
+-------------------------
+Most GPIO controllers can be accessed with memory read/write instructions.
+That doesn't need to sleep, and can safely be done from inside IRQ handlers.
+
+Use these calls to access such GPIOs:
+
+	/* GPIO INPUT:  return zero or nonzero */
+	int gpio_get_value(unsigned gpio);
+
+	/* GPIO OUTPUT */
+	void gpio_set_value(unsigned gpio, int value);
+
+The values are boolean, zero for low, nonzero for high.  When reading the
+value of an output pin, the value returned should be what's seen on the
+pin ... that won't always match the specified output value, because of
+issues including wire-OR and output latencies.
+
+The get/set calls have no error returns because "invalid GPIO" should have
+been reported earlier in gpio_set_direction().  However, note that not all
+platforms can read the value of output pins; those that can't should always
+return zero.  Also, these calls will be ignored for GPIOs that can't safely
+be accessed wihtout sleeping (see below).
+
+Platform-specific implementations are encouraged to optimise the two
+calls to access the GPIO value in cases where the GPIO number (and for
+output, value) are constant.  It's normal for them to need only a couple
+of instructions in such cases (reading or writing a hardware register),
+and not to need spinlocks.  Such optimized calls can make bitbanging
+applications a lot more efficient (in both space and time) than spending
+dozens of instructions on subroutine calls.
+
+
+GPIO access that may sleep
+--------------------------
+Some GPIO controllers must be accessed using message based busses like I2C
+or SPI.  Commands to read or write those GPIO values require waiting to
+get to the head of a queue to transmit a command and get its response.
+This requires sleeping, which can't be done from inside IRQ handlers.
+
+Platforms that support this type of GPIO distinguish them from other GPIOs
+by returning nonzero from this call:
+
+	int gpio_cansleep(unsigned gpio);
+
+To access such GPIOs, a different set of accessors is defined:
+
+	/* GPIO INPUT:  return zero or nonzero, might sleep */
+	int gpio_get_value_cansleep(unsigned gpio);
+
+	/* GPIO OUTPUT, might sleep */
+	void gpio_set_value_cansleep(unsigned gpio, int value);
+
+Other than the fact that these calls might sleep, and will not be ignored
+for GPIOs that can't be accessed from IRQ handlers, these calls act the
+same as the spinlock-safe calls.
+
+
+Claiming and Releasing GPIOs (OPTIONAL)
+---------------------------------------
+To help catch system configuration errors, two calls are defined.
+However, many platforms don't currently support this mechanism.
+
+	/* request GPIO, returning 0 or negative errno.
+	 * non-null labels may be useful for diagnostics.
+	 */
+	int gpio_request(unsigned gpio, const char *label);
+
+	/* release previously-claimed GPIO */
+	void gpio_free(unsigned gpio);
+
+Passing invalid GPIO numbers to gpio_request() will fail, as will requesting
+GPIOs that have already been claimed with that call.  The return value of
+gpio_request() must be checked.  (These calls could sleep.)
+
+These calls serve two basic purposes.  One is marking the signals which
+are actually in use as GPIOs, for better diagnostics; systems may have
+several hundred potential GPIOs, but often only a dozen are used on any
+given board.  Another is to catch conflicts between drivers, reporting
+errors when drivers wrongly think they have exclusive use of that signal.
+
+These two calls are optional because not not all current Linux platforms
+offer such functionality in their GPIO support; a valid implementation
+could return success for all gpio_request() calls.  Unlike the other calls,
+the state they represent doesn't normally match anything from a hardware
+register; it's just a software bitmap which clearly is not necessary for
+correct operation of hardware or (bug free) drivers.
+
+Note that requesting a GPIO does NOT cause it to be configured in any
+way; it just marks that GPIO as in use.  Separate code must handle any
+pin setup (e.g. controlling which pin the GPIO uses, pullup/pulldown).
+
+
+GPIOs mapped to IRQs
+--------------------
+GPIO numbers are unsigned integers; so are IRQ numbers.  These make up
+two logically distinct namespaces (GPIO 0 need not use IRQ 0).  You can
+map between them using calls like:
+
+	/* map GPIO numbers to IRQ numbers */
+	int gpio_to_irq(unsigned gpio);
+
+	/* map IRQ numbers to GPIO numbers */
+	int irq_to_gpio(unsigned irq);
+
+Those return either the corresponding number in the other namespace, or
+else a negative errno code if the mapping can't be done.  (For example,
+some GPIOs can't used as IRQs.)  It is an unchecked error to use a GPIO
+number that hasn't been marked as an input using gpio_set_direction(), or
+to use an IRQ number that didn't originally come from gpio_to_irq().
+
+These two mapping calls are expected to cost on the order of a single
+addition or subtraction.  They're not allowed to sleep.
+
+Non-error values returned from gpio_to_irq() can be passed to request_irq()
+or free_irq().  They will often be stored into IRQ resources for platform
+devices, by the board-specific initialization code.  Note that IRQ trigger
+options are part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are
+system wakeup capabilities.
+
+Non-error values returned from irq_to_gpio() would most commonly be used
+with gpio_get_value().
+
+
+
+What do these conventions omit?
+===============================
+One of the biggest things these conventions omit is pin multiplexing, since
+this is highly chip-specific and nonportable.  One platform might not need
+explicit multiplexing; another might have just two options for use of any
+given pin; another might have eight options per pin; another might be able
+to route a given GPIO to any one of several pins.  (Yes, those examples all
+come from systems that run Linux today.)
+
+Related to multiplexing is configuration and enabling of the pullups or
+pulldowns integrated on some platforms.  Not all platforms support them,
+or support them in the same way; and any given board might use external
+pullups (or pulldowns) so that the on-chip ones should not be used.
+
+There are other system-specific mechanisms that are not specified here,
+like the aforementioned options for input de-glitching and wire-OR output.
+Hardware may support reading or writing GPIOs in gangs, but that's usually
+configuration dependednt:  for GPIOs sharing the same bank.  (GPIOs are
+commonly grouped in banks of 16 or 32, with a given SOC having several such
+banks.)  Code relying on such mechanisms will necessarily be nonportable.
+
+Dynamic definition of GPIOs is not currently supported; for example, as
+a side effect of configuring an add-on board with some GPIO expanders.
+
+These calls are purely for kernel space, but a userspace API could be built
+on top of it.

Documentation/ioctl-number.txt

@@ -94,8 +94,7 @@ Code	Seq#	Include File		Comments
 'L'	00-1F	linux/loop.h
 'L'	E0-FF	linux/ppdd.h		encrypted disk device driver
 					<http://linux01.gwdg.de/~alatham/ppdd.html>
-'M'	all	linux/soundcard.h	conflict!
-'M'	00-1F	linux/isicom.h		conflict!
+'M'	all	linux/soundcard.h
 'N'	00-1F	drivers/usb/scanner.h
 'P'	all	linux/soundcard.h
 'Q'	all	linux/soundcard.h

Documentation/isdn/README.gigaset

@@ -8,29 +8,33 @@ GigaSet 307x Device Driver
      This release supports the connection of the Gigaset 307x/417x family of
      ISDN DECT bases via Gigaset M101 Data, Gigaset M105 Data or direct USB
      connection. The following devices are reported to be compatible:
-     307x/417x:
-        Gigaset SX255isdn
-        Gigaset SX353isdn
-        Sinus 45 [AB] isdn (Deutsche Telekom)
-        Sinus 721X/XA
+
+     Bases:
+        Siemens Gigaset 3070/3075 isdn
+        Siemens Gigaset 4170/4175 isdn
+        Siemens Gigaset SX205/255
+        Siemens Gigaset SX353
+        T-Com Sinus 45 [AB] isdn
+        T-Com Sinus 721X[A] [SE]
         Vox Chicago 390 ISDN (KPN Telecom)
-     M101:
-        Sinus 45 Data 1 (Telekom)
-     M105:
-        Gigaset USB Adapter DECT
-        Sinus 45 Data 2 (Telekom)
-        Sinus 721 data
+
+     RS232 data boxes:
+        Siemens Gigaset M101 Data
+        T-Com Sinus 45 Data 1
+
+     USB data boxes:
+        Siemens Gigaset M105 Data
+        Siemens Gigaset USB Adapter DECT
+        T-Com Sinus 45 Data 2
+        T-Com Sinus 721 data
         Chicago 390 USB (KPN)
+
      See also http://www.erbze.info/sinus_gigaset.htm and
               http://gigaset307x.sourceforge.net/
 
      We had also reports from users of Gigaset M105 who could use the drivers
      with SX 100 and CX 100 ISDN bases (only in unimodem mode, see section 2.4.)
      If you have another device that works with our driver, please let us know.
-     For example, Gigaset SX205isdn/Sinus 721 X SE and Gigaset SX303isdn bases
-     are just versions without answering machine of models known to work, so
-     they should work just as well; but so far we are lacking positive reports
-     on these.
 
      Chances of getting an USB device to work are good if the output of
         lsusb
@@ -60,14 +64,28 @@ GigaSet 307x Device Driver
      To get the device working, you have to load the proper kernel module. You
      can do this using
          modprobe modulename
-     where modulename is usb_gigaset (M105) or bas_gigaset (direct USB
-     connection to the base).
+     where modulename is ser_gigaset (M101), usb_gigaset (M105), or
+     bas_gigaset (direct USB connection to the base).
+
+     The module ser_gigaset provides a serial line discipline N_GIGASET_M101
+     which drives the device through the regular serial line driver. To use it,
+     run the Gigaset M101 daemon "gigasetm101d" (also available from
+     http://sourceforge.net/projects/gigaset307x/) with the device file of the
+     RS232 port to the M101 as an argument, for example:
+	 gigasetm101d /dev/ttyS1
+     This will open the device file, set its line discipline to N_GIGASET_M101,
+     and then sleep in the background, keeping the device open so that the
+     line discipline remains active. To deactivate it, kill the daemon, for
+     example with
+	 killall gigasetm101d
+     before disconnecting the device.
 
 2.2. Device nodes for user space programs
      ------------------------------------
      The device can be accessed from user space (eg. by the user space tools
      mentioned in 1.2.) through the device nodes:
 
+     - /dev/ttyGS0 for M101 (RS232 data boxes)
      - /dev/ttyGU0 for M105 (USB data boxes)
      - /dev/ttyGB0 for the base driver (direct USB connection)
 
@@ -168,6 +186,19 @@ GigaSet 307x Device Driver
      You can also use /sys/class/tty/ttyGxy/cidmode for changing the CID mode
      setting (ttyGxy is ttyGU0 or ttyGB0).
 
+2.6. M105 Undocumented USB Requests
+     ------------------------------
+
+     The Gigaset M105 USB data box understands a couple of useful, but
+     undocumented USB commands. These requests are not used in normal
+     operation (for wireless access to the base), but are needed for access
+     to the M105's own configuration mode (registration to the base, baudrate
+     and line format settings, device status queries) via the gigacontr
+     utility. Their use is disabled in the driver by default for safety
+     reasons but can be enabled by setting the kernel configuration option
+     "Support for undocumented USB requests" (GIGASET_UNDOCREQ) to "Y" and
+     recompiling.
+
 
 3.   Troubleshooting
      ---------------

Documentation/kdump/kdump.txt

@@ -311,10 +311,10 @@ Following are the arch specific command line options to be used while
 loading dump-capture kernel.
 
 For i386, x86_64 and ia64:
-	"init 1 irqpoll maxcpus=1"
+	"1 irqpoll maxcpus=1"
 
 For ppc64:
-	"init 1 maxcpus=1 noirqdistrib"
+	"1 maxcpus=1 noirqdistrib"
 
 
 Notes on loading the dump-capture kernel:
@@ -332,8 +332,8 @@ Notes on loading the dump-capture kernel:
 * You must specify <root-dev> in the format corresponding to the root
   device name in the output of mount command.
 
-* "init 1" boots the dump-capture kernel into single-user mode without
-  networking. If you want networking, use "init 3."
+* Boot parameter "1" boots the dump-capture kernel into single-user
+  mode without networking. If you want networking, use "3".
 
 * We generally don' have to bring up a SMP kernel just to capture the
   dump. Hence generally it is useful either to build a UP dump-capture

Documentation/kernel-doc-nano-HOWTO.txt

@@ -101,16 +101,20 @@ The format of the block comment is like this:
 
 /**
  * function_name(:)? (- short description)?
-(* @parameterx: (description of parameter x)?)*
+(* @parameterx(space)*: (description of parameter x)?)*
 (* a blank line)?
  * (Description:)? (Description of function)?
  * (section header: (section description)? )*
 (*)?*/
 
-The short function description cannot be multiline, but the other
-descriptions can be (and they can contain blank lines). Avoid putting a
-spurious blank line after the function name, or else the description will
-be repeated!
+The short function description ***cannot be multiline***, but the other
+descriptions can be (and they can contain blank lines).  If you continue
+that initial short description onto a second line, that second line will
+appear further down at the beginning of the description section, which is
+almost certainly not what you had in mind.
+
+Avoid putting a spurious blank line after the function name, or else the
+description will be repeated!
 
 All descriptive text is further processed, scanning for the following special
 patterns, which are highlighted appropriately.
@@ -121,6 +125,31 @@ patterns, which are highlighted appropriately.
 '@parameter' - name of a parameter
 '%CONST' - name of a constant.
 
+NOTE 1:  The multi-line descriptive text you provide does *not* recognize
+line breaks, so if you try to format some text nicely, as in:
+
+  Return codes
+    0 - cool
+    1 - invalid arg
+    2 - out of memory
+
+this will all run together and produce:
+
+  Return codes 0 - cool 1 - invalid arg 2 - out of memory
+
+NOTE 2:  If the descriptive text you provide has lines that begin with
+some phrase followed by a colon, each of those phrases will be taken as
+a new section heading, which means you should similarly try to avoid text
+like:
+
+  Return codes:
+    0: cool
+    1: invalid arg
+    2: out of memory
+
+every line of which would start a new section.  Again, probably not
+what you were after.
+
 Take a look around the source tree for examples.
 
 

Documentation/kernel-parameters.txt

@@ -1396,6 +1396,8 @@ and is between 256 and 4096 characters. It is defined in the file
 			in <PAGE_SIZE> units (needed only for swap files).
 			See  Documentation/power/swsusp-and-swap-files.txt
 
+	retain_initrd	[RAM] Keep initrd memory after extraction
+
 	rhash_entries=	[KNL,NET]
 			Set number of hash buckets for route cache
 

Documentation/local_ops.txt

@@ -0,0 +1,163 @@
+	     Semantics and Behavior of Local Atomic Operations
+
+			    Mathieu Desnoyers
+
+
+	This document explains the purpose of the local atomic operations, how
+to implement them for any given architecture and shows how they can be used
+properly. It also stresses on the precautions that must be taken when reading
+those local variables across CPUs when the order of memory writes matters.
+
+
+
+* Purpose of local atomic operations
+
+Local atomic operations are meant to provide fast and highly reentrant per CPU
+counters. They minimize the performance cost of standard atomic operations by
+removing the LOCK prefix and memory barriers normally required to synchronize
+across CPUs.
+
+Having fast per CPU atomic counters is interesting in many cases : it does not
+require disabling interrupts to protect from interrupt handlers and it permits
+coherent counters in NMI handlers. It is especially useful for tracing purposes
+and for various performance monitoring counters.
+
+Local atomic operations only guarantee variable modification atomicity wrt the
+CPU which owns the data. Therefore, care must taken to make sure that only one
+CPU writes to the local_t data. This is done by using per cpu data and making
+sure that we modify it from within a preemption safe context. It is however
+permitted to read local_t data from any CPU : it will then appear to be written
+out of order wrt other memory writes on the owner CPU.
+
+
+* Implementation for a given architecture
+
+It can be done by slightly modifying the standard atomic operations : only
+their UP variant must be kept. It typically means removing LOCK prefix (on
+i386 and x86_64) and any SMP sychronization barrier. If the architecture does
+not have a different behavior between SMP and UP, including asm-generic/local.h
+in your archtecture's local.h is sufficient.
+
+The local_t type is defined as an opaque signed long by embedding an
+atomic_long_t inside a structure. This is made so a cast from this type to a
+long fails. The definition looks like :
+
+typedef struct { atomic_long_t a; } local_t;
+
+
+* How to use local atomic operations
+
+#include <linux/percpu.h>
+#include <asm/local.h>
+
+static DEFINE_PER_CPU(local_t, counters) = LOCAL_INIT(0);
+
+
+* Counting
+
+Counting is done on all the bits of a signed long.
+
+In preemptible context, use get_cpu_var() and put_cpu_var() around local atomic
+operations : it makes sure that preemption is disabled around write access to
+the per cpu variable. For instance :
+
+	local_inc(&get_cpu_var(counters));
+	put_cpu_var(counters);
+
+If you are already in a preemption-safe context, you can directly use
+__get_cpu_var() instead.
+
+	local_inc(&__get_cpu_var(counters));
+
+
+
+* Reading the counters
+
+Those local counters can be read from foreign CPUs to sum the count. Note that
+the data seen by local_read across CPUs must be considered to be out of order
+relatively to other memory writes happening on the CPU that owns the data.
+
+	long sum = 0;
+	for_each_online_cpu(cpu)
+		sum += local_read(&per_cpu(counters, cpu));
+
+If you want to use a remote local_read to synchronize access to a resource
+between CPUs, explicit smp_wmb() and smp_rmb() memory barriers must be used
+respectively on the writer and the reader CPUs. It would be the case if you use
+the local_t variable as a counter of bytes written in a buffer : there should
+be a smp_wmb() between the buffer write and the counter increment and also a
+smp_rmb() between the counter read and the buffer read.
+
+
+Here is a sample module which implements a basic per cpu counter using local.h.
+
+--- BEGIN ---
+/* test-local.c
+ *
+ * Sample module for local.h usage.
+ */
+
+
+#include <asm/local.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+
+static DEFINE_PER_CPU(local_t, counters) = LOCAL_INIT(0);
+
+static struct timer_list test_timer;
+
+/* IPI called on each CPU. */
+static void test_each(void *info)
+{
+	/* Increment the counter from a non preemptible context */
+	printk("Increment on cpu %d\n", smp_processor_id());
+	local_inc(&__get_cpu_var(counters));
+
+	/* This is what incrementing the variable would look like within a
+	 * preemptible context (it disables preemption) :
+	 *
+	 * local_inc(&get_cpu_var(counters));
+	 * put_cpu_var(counters);
+	 */
+}
+
+static void do_test_timer(unsigned long data)
+{
+	int cpu;
+
+	/* Increment the counters */
+	on_each_cpu(test_each, NULL, 0, 1);
+	/* Read all the counters */
+	printk("Counters read from CPU %d\n", smp_processor_id());
+	for_each_online_cpu(cpu) {
+		printk("Read : CPU %d, count %ld\n", cpu,
+			local_read(&per_cpu(counters, cpu)));
+	}
+	del_timer(&test_timer);
+	test_timer.expires = jiffies + 1000;
+	add_timer(&test_timer);
+}
+
+static int __init test_init(void)
+{
+	/* initialize the timer that will increment the counter */
+	init_timer(&test_timer);
+	test_timer.function = do_test_timer;
+	test_timer.expires = jiffies + 1;
+	add_timer(&test_timer);
+
+	return 0;
+}
+
+static void __exit test_exit(void)
+{
+	del_timer_sync(&test_timer);
+}
+
+module_init(test_init);
+module_exit(test_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mathieu Desnoyers");
+MODULE_DESCRIPTION("Local Atomic Ops");
+--- END ---

Documentation/nfsroot.txt

@@ -67,8 +67,8 @@ nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
   <nfs-options>	Standard NFS options. All options are separated by commas.
 		The following defaults are used:
 			port		= as given by server portmap daemon
-			rsize		= 1024
-			wsize		= 1024
+			rsize		= 4096
+			wsize		= 4096
 			timeo		= 7
 			retrans		= 3
 			acregmin	= 3

Documentation/powerpc/mpc52xx-device-tree-bindings.txt

@@ -1,7 +1,7 @@
-MPC52xx Device Tree Bindings
+MPC5200 Device Tree Bindings
 ----------------------------
 
-(c) 2006 Secret Lab Technologies Ltd
+(c) 2006-2007 Secret Lab Technologies Ltd
 Grant Likely <grant.likely at secretlab.ca>
 
 ********** DRAFT ***********
@@ -20,11 +20,11 @@ described in Documentation/powerpc/booting-without-of.txt), or passed
 by Open Firmare (IEEE 1275) compatible firmware using an OF compatible
 client interface API.
 
-This document specifies the requirements on the device-tree for mpc52xx
+This document specifies the requirements on the device-tree for mpc5200
 based boards.  These requirements are above and beyond the details
 specified in either the OpenFirmware spec or booting-without-of.txt
 
-All new mpc52xx-based boards are expected to match this document.  In
+All new mpc5200-based boards are expected to match this document.  In
 cases where this document is not sufficient to support a new board port,
 this document should be updated as part of adding the new board support.
 
@@ -32,26 +32,26 @@ II - Philosophy
 ===============
 The core of this document is naming convention.  The whole point of
 defining this convention is to reduce or eliminate the number of
-special cases required to support a 52xx board.  If all 52xx boards
-follow the same convention, then generic 52xx support code will work
+special cases required to support a 5200 board.  If all 5200 boards
+follow the same convention, then generic 5200 support code will work
 rather than coding special cases for each new board.
 
 This section tries to capture the thought process behind why the naming
 convention is what it is.
 
-1. Node names
--------------
+1.  names
+---------
 There is strong convention/requirements already established for children
 of the root node.  'cpus' describes the processor cores, 'memory'
 describes memory, and 'chosen' provides boot configuration.  Other nodes
 are added to describe devices attached to the processor local bus.
+
 Following convention already established with other system-on-chip
-processors, MPC52xx boards must have an 'soc5200' node as a child of the
-root node.
+processors, 5200 device trees should use the name 'soc5200' for the
+parent node of on chip devices, and the root node should be its parent.
 
-The soc5200 node holds child nodes for all on chip devices.  Child nodes
-are typically named after the configured function.  ie. the FEC node is
-named 'ethernet', and a PSC in uart mode is named 'serial'.
+Child nodes are typically named after the configured function.  ie.
+the FEC node is named 'ethernet', and a PSC in uart mode is named 'serial'.
 
 2. device_type property
 -----------------------
@@ -66,28 +66,47 @@ exactly.
 Since device_type isn't enough to match devices to drivers, there also
 needs to be a naming convention for the compatible property.  Compatible
 is an list of device descriptions sorted from specific to generic.  For
-the mpc52xx, the required format for each compatible value is
-<chip>-<device>[-<mode>].  At the minimum, the list shall contain two
-items; the first specifying the exact chip, and the second specifying
-mpc52xx for the chip.
-
-ie. ethernet on mpc5200b: compatible = "mpc5200b-ethernet\0mpc52xx-ethernet"
-
-The idea here is that most drivers will match to the most generic field
-in the compatible list (mpc52xx-*), but can also test the more specific
-field for enabling bug fixes or extra features.
+the mpc5200, the required format for each compatible value is
+<chip>-<device>[-<mode>].  The OS should be able to match a device driver
+to the device based solely on the compatible value.  If two drivers
+match on the compatible list; the 'most compatible' driver should be
+selected.
+
+The split between the MPC5200 and the MPC5200B leaves a bit of a
+connundrum.  How should the compatible property be set up to provide
+maximum compatability information; but still acurately describe the
+chip?  For the MPC5200; the answer is easy.  Most of the SoC devices
+originally appeared on the MPC5200.  Since they didn't exist anywhere
+else; the 5200 compatible properties will contain only one item;
+"mpc5200-<device>".
+
+The 5200B is almost the same as the 5200, but not quite.  It fixes
+silicon bugs and it adds a small number of enhancements.  Most of the
+devices either provide exactly the same interface as on the 5200.  A few
+devices have extra functions but still have a backwards compatible mode.
+To express this infomation as completely as possible, 5200B device trees
+should have two items in the compatible list;
+"mpc5200b-<device>\0mpc5200-<device>".  It is *strongly* recommended
+that 5200B device trees follow this convention (instead of only listing
+the base mpc5200 item).
+
+If another chip appear on the market with one of the mpc5200 SoC
+devices, then the compatible list should include mpc5200-<device>.
+
+ie. ethernet on mpc5200: compatible = "mpc5200-ethernet"
+    ethernet on mpc5200b: compatible = "mpc5200b-ethernet\0mpc5200-ethernet"
 
 Modal devices, like PSCs, also append the configured function to the
 end of the compatible field.  ie. A PSC in i2s mode would specify
-"mpc52xx-psc-i2s", not "mpc52xx-i2s".  This convention is chosen to
+"mpc5200-psc-i2s", not "mpc5200-i2s".  This convention is chosen to
 avoid naming conflicts with non-psc devices providing the same
-function.  For example, "mpc52xx-spi" and "mpc52xx-psc-spi" describe
+function.  For example, "mpc5200-spi" and "mpc5200-psc-spi" describe
 the mpc5200 simple spi device and a PSC spi mode respectively.
 
 If the soc device is more generic and present on other SOCs, the
 compatible property can specify the more generic device type also.
 
-ie. mscan: compatible = "mpc5200-mscan\0mpc52xx-mscan\0fsl,mscan";
+ie. mscan: compatible = "mpc5200-mscan\0fsl,mscan";
 
 At the time of writing, exact chip may be either 'mpc5200' or
 'mpc5200b'.
@@ -96,7 +115,7 @@ Device drivers should always try to match as generically as possible.
 
 III - Structure
 ===============
-The device tree for an mpc52xx board follows the structure defined in
+The device tree for an mpc5200 board follows the structure defined in
 booting-without-of.txt with the following additional notes:
 
 0) the root node
@@ -115,7 +134,7 @@ Typical memory description node; see booting-without-of.
 
 3) The soc5200 node
 -------------------
-This node describes the on chip SOC peripherals.  Every mpc52xx based
+This node describes the on chip SOC peripherals.  Every mpc5200 based
 board will have this node, and as such there is a common naming
 convention for SOC devices.
 
@@ -125,71 +144,111 @@ name			type		description
 device_type		string		must be "soc"
 ranges			int		should be <0 baseaddr baseaddr+10000>
 reg			int		must be <baseaddr 10000>
+compatible		string		mpc5200: "mpc5200-soc"
+					mpc5200b: "mpc5200b-soc\0mpc5200-soc"
+system-frequency	int		Fsystem frequency; source of all
+					other clocks.
+bus-frequency		int		IPB bus frequency in HZ.  Clock rate
+					used by most of the soc devices.
+#interrupt-cells	int		must be <3>.
 
 Recommended properties:
 name			type		description
 ----			----		-----------
-compatible		string		should be "<chip>-soc\0mpc52xx-soc"
-					ie. "mpc5200b-soc\0mpc52xx-soc"
-#interrupt-cells	int		must be <3>.  If it is not defined
-					here then it must be defined in every
-					soc device node.
-bus-frequency		int		IPB bus frequency in HZ.  Clock rate
-					used by most of the soc devices.
-					Defining it here avoids needing it
-					added to every device node.
+model			string		Exact model of the chip;
+					ie: model="fsl,mpc5200"
+revision		string		Silicon revision of chip
+					ie: revision="M08A"
+
+The 'model' and 'revision' properties are *strongly* recommended.  Having
+them presence acts as a bit of a safety net for working around as yet
+undiscovered bugs on one version of silicon.  For example, device drivers
+can use the model and revision properties to decide if a bug fix should
+be turned on.
 
 4) soc5200 child nodes
 ----------------------
 Any on chip SOC devices available to Linux must appear as soc5200 child nodes.
 
-Note: in the tables below, '*' matches all <chip> values.  ie.
-*-pic would translate to "mpc5200-pic\0mpc52xx-pic"
+Note: The tables below show the value for the mpc5200.  A mpc5200b device
+tree should use the "mpc5200b-<device>\0mpc5200-<device> form.
 
 Required soc5200 child nodes:
 name		device_type		compatible	Description
 ----		-----------		----------	-----------
-cdm@<addr>	cdm			*-cmd		Clock Distribution
-pic@<addr>	interrupt-controller	*-pic		need an interrupt
+cdm@<addr>	cdm			mpc5200-cmd	Clock Distribution
+pic@<addr>	interrupt-controller	mpc5200-pic	need an interrupt
 							controller to boot
-bestcomm@<addr>	dma-controller		*-bestcomm	52xx pic also requires
-							the bestcomm device
+bestcomm@<addr>	dma-controller		mpc5200-bestcomm 5200 pic also requires
+							 the bestcomm device
 
 Recommended soc5200 child nodes; populate as needed for your board
-name		device_type	compatible	Description
-----		-----------	----------	-----------
-gpt@<addr>	gpt		*-gpt		General purpose timers
-rtc@<addr>	rtc		*-rtc		Real time clock
-mscan@<addr>	mscan		*-mscan		CAN bus controller
-pci@<addr>	pci		*-pci		PCI bridge
-serial@<addr>	serial		*-psc-uart	PSC in serial mode
-i2s@<addr>	sound		*-psc-i2s	PSC in i2s mode
-ac97@<addr>	sound		*-psc-ac97	PSC in ac97 mode
-spi@<addr>	spi		*-psc-spi	PSC in spi mode
-irda@<addr>	irda		*-psc-irda	PSC in IrDA mode
-spi@<addr>	spi		*-spi		MPC52xx spi device
-ethernet@<addr>	network		*-fec		MPC52xx ethernet device
-ata@<addr>	ata		*-ata		IDE ATA interface
-i2c@<addr>	i2c		*-i2c		I2C controller
-usb@<addr>	usb-ohci-be	*-ohci,ohci-be	USB controller
-xlb@<addr>	xlb		*-xlb		XLB arbritrator
+name		device_type	compatible	  Description
+----		-----------	----------	  -----------
+gpt@<addr>	gpt		mpc5200-gpt	  General purpose timers
+rtc@<addr>	rtc		mpc5200-rtc	  Real time clock
+mscan@<addr>	mscan		mpc5200-mscan	  CAN bus controller
+pci@<addr>	pci		mpc5200-pci	  PCI bridge
+serial@<addr>	serial		mpc5200-psc-uart  PSC in serial mode
+i2s@<addr>	sound		mpc5200-psc-i2s	  PSC in i2s mode
+ac97@<addr>	sound		mpc5200-psc-ac97  PSC in ac97 mode
+spi@<addr>	spi		mpc5200-psc-spi	  PSC in spi mode
+irda@<addr>	irda		mpc5200-psc-irda  PSC in IrDA mode
+spi@<addr>	spi		mpc5200-spi	  MPC5200 spi device
+ethernet@<addr>	network		mpc5200-fec	  MPC5200 ethernet device
+ata@<addr>	ata		mpc5200-ata	  IDE ATA interface
+i2c@<addr>	i2c		mpc5200-i2c	  I2C controller
+usb@<addr>	usb-ohci-be	mpc5200-ohci,ohci-be	USB controller
+xlb@<addr>	xlb		mpc5200-xlb	  XLB arbritrator
+
+Important child node properties
+name		type		description
+----		----		-----------
+cell-index	int		When multiple devices are present, is the
+				index of the device in the hardware (ie. There
+				are 6 PSC on the 5200 numbered PSC1 to PSC6)
+				    PSC1 has 'cell-index = <0>'
+				    PSC4 has 'cell-index = <3>'
+
+5) General Purpose Timer nodes (child of soc5200 node)
+On the mpc5200 and 5200b, GPT0 has a watchdog timer function.  If the board
+design supports the internal wdt, then the device node for GPT0 should
+include the empty property 'has-wdt'.
+
+6) PSC nodes (child of soc5200 node)
+PSC nodes can define the optional 'port-number' property to force assignment
+order of serial ports.  For example, PSC5 might be physically connected to
+the port labeled 'COM1' and PSC1 wired to 'COM1'.  In this case, PSC5 would
+have a "port-number = <0>" property, and PSC1 would have "port-number = <1>".
+
+PSC in i2s mode:  The mpc5200 and mpc5200b PSCs are not compatible when in
+i2s mode.  An 'mpc5200b-psc-i2s' node cannot include 'mpc5200-psc-i2s' in the
+compatible field.
 
 IV - Extra Notes
 ================
 
 1. Interrupt mapping
 --------------------
-The mpc52xx pic driver splits hardware IRQ numbers into two levels.  The
+The mpc5200 pic driver splits hardware IRQ numbers into two levels.  The
 split reflects the layout of the PIC hardware itself, which groups
 interrupts into one of three groups; CRIT, MAIN or PERP.  Also, the
 Bestcomm dma engine has it's own set of interrupt sources which are
 cascaded off of peripheral interrupt 0, which the driver interprets as a
 fourth group, SDMA.
 
-The interrupts property for device nodes using the mpc52xx pic consists
+The interrupts property for device nodes using the mpc5200 pic consists
 of three cells; <L1 L2 level>
 
     L1 := [CRIT=0, MAIN=1, PERP=2, SDMA=3]
     L2 := interrupt number; directly mapped from the value in the
           "ICTL PerStat, MainStat, CritStat Encoded Register"
     level := [LEVEL_HIGH=0, EDGE_RISING=1, EDGE_FALLING=2, LEVEL_LOW=3]
+
+2. Shared registers
+-------------------
+Some SoC devices share registers between them.  ie. the i2c devices use
+a single clock control register, and almost all device are affected by
+the port_config register.  Devices which need to manipulate shared regs
+should look to the parent SoC node.  The soc node is responsible
+for arbitrating all shared register access.

Documentation/rbtree.txt

@@ -0,0 +1,192 @@
+Red-black Trees (rbtree) in Linux
+January 18, 2007
+Rob Landley <rob@landley.net>
+=============================
+
+What are red-black trees, and what are they for?
+------------------------------------------------
+
+Red-black trees are a type of self-balancing binary search tree, used for
+storing sortable key/value data pairs.  This differs from radix trees (which
+are used to efficiently store sparse arrays and thus use long integer indexes
+to insert/access/delete nodes) and hash tables (which are not kept sorted to
+be easily traversed in order, and must be tuned for a specific size and
+hash function where rbtrees scale gracefully storing arbitrary keys).
+
+Red-black trees are similar to AVL trees, but provide faster real-time bounded
+worst case performance for insertion and deletion (at most two rotations and
+three rotations, respectively, to balance the tree), with slightly slower
+(but still O(log n)) lookup time.
+
+To quote Linux Weekly News:
+
+    There are a number of red-black trees in use in the kernel.
+    The anticipatory, deadline, and CFQ I/O schedulers all employ
+    rbtrees to track requests; the packet CD/DVD driver does the same.
+    The high-resolution timer code uses an rbtree to organize outstanding
+    timer requests.  The ext3 filesystem tracks directory entries in a
+    red-black tree.  Virtual memory areas (VMAs) are tracked with red-black
+    trees, as are epoll file descriptors, cryptographic keys, and network
+    packets in the "hierarchical token bucket" scheduler.
+
+This document covers use of the Linux rbtree implementation.  For more
+information on the nature and implementation of Red Black Trees,  see:
+
+  Linux Weekly News article on red-black trees
+    http://lwn.net/Articles/184495/
+
+  Wikipedia entry on red-black trees
+    http://en.wikipedia.org/wiki/Red-black_tree
+
+Linux implementation of red-black trees
+---------------------------------------
+
+Linux's rbtree implementation lives in the file "lib/rbtree.c".  To use it,
+"#include <linux/rbtree.h>".
+
+The Linux rbtree implementation is optimized for speed, and thus has one
+less layer of indirection (and better cache locality) than more traditional
+tree implementations.  Instead of using pointers to separate rb_node and data
+structures, each instance of struct rb_node is embedded in the data structure
+it organizes.  And instead of using a comparison callback function pointer,
+users are expected to write their own tree search and insert functions
+which call the provided rbtree functions.  Locking is also left up to the
+user of the rbtree code.
+
+Creating a new rbtree
+---------------------
+
+Data nodes in an rbtree tree are structures containing a struct rb_node member:
+
+  struct mytype {
+  	struct rb_node node;
+  	char *keystring;
+  };
+
+When dealing with a pointer to the embedded struct rb_node, the containing data
+structure may be accessed with the standard container_of() macro.  In addition,
+individual members may be accessed directly via rb_entry(node, type, member).
+
+At the root of each rbtree is an rb_root structure, which is initialized to be
+empty via:
+
+  struct rb_root mytree = RB_ROOT;
+
+Searching for a value in an rbtree
+----------------------------------
+
+Writing a search function for your tree is fairly straightforward: start at the
+root, compare each value, and follow the left or right branch as necessary.
+
+Example:
+
+  struct mytype *my_search(struct rb_root *root, char *string)
+  {
+  	struct rb_node *node = root->rb_node;
+
+  	while (node) {
+  		struct mytype *data = container_of(node, struct mytype, node);
+		int result;
+
+		result = strcmp(string, data->keystring);
+
+		if (result < 0)
+  			node = node->rb_left;
+		else if (result > 0)
+  			node = node->rb_right;
+		else
+  			return data;
+	}
+	return NULL;
+  }
+
+Inserting data into an rbtree
+-----------------------------
+
+Inserting data in the tree involves first searching for the place to insert the
+new node, then inserting the node and rebalancing ("recoloring") the tree.
+
+The search for insertion differs from the previous search by finding the
+location of the pointer on which to graft the new node.  The new node also
+needs a link to its parent node for rebalancing purposes.
+
+Example:
+
+  int my_insert(struct rb_root *root, struct mytype *data)
+  {
+  	struct rb_node **new = &(root->rb_node), *parent = NULL;
+
+  	/* Figure out where to put new node */
+  	while (*new) {
+  		struct mytype *this = container_of(*new, struct mytype, node);
+  		int result = strcmp(data->keystring, this->keystring);
+
+		parent = *new;
+  		if (result < 0)
+  			new = &((*new)->rb_left);
+  		else if (result > 0)
+  			new = &((*new)->rb_right);
+  		else
+  			return FALSE;
+  	}
+
+  	/* Add new node and rebalance tree. */
+  	rb_link_node(data->node, parent, new);
+  	rb_insert_color(data->node, root);
+
+	return TRUE;
+  }
+
+Removing or replacing existing data in an rbtree
+------------------------------------------------
+
+To remove an existing node from a tree, call:
+
+  void rb_erase(struct rb_node *victim, struct rb_root *tree);
+
+Example:
+
+  struct mytype *data = mysearch(mytree, "walrus");
+
+  if (data) {
+  	rb_erase(data->node, mytree);
+  	myfree(data);
+  }
+
+To replace an existing node in a tree with a new one with the same key, call:
+
+  void rb_replace_node(struct rb_node *old, struct rb_node *new,
+  			struct rb_root *tree);
+
+Replacing a node this way does not re-sort the tree: If the new node doesn't
+have the same key as the old node, the rbtree will probably become corrupted.
+
+Iterating through the elements stored in an rbtree (in sort order)
+------------------------------------------------------------------
+
+Four functions are provided for iterating through an rbtree's contents in
+sorted order.  These work on arbitrary trees, and should not need to be
+modified or wrapped (except for locking purposes):
+
+  struct rb_node *rb_first(struct rb_root *tree);
+  struct rb_node *rb_last(struct rb_root *tree);
+  struct rb_node *rb_next(struct rb_node *node);
+  struct rb_node *rb_prev(struct rb_node *node);
+
+To start iterating, call rb_first() or rb_last() with a pointer to the root
+of the tree, which will return a pointer to the node structure contained in
+the first or last element in the tree.  To continue, fetch the next or previous
+node by calling rb_next() or rb_prev() on the current node.  This will return
+NULL when there are no more nodes left.
+
+The iterator functions return a pointer to the embedded struct rb_node, from
+which the containing data structure may be accessed with the container_of()
+macro, and individual members may be accessed directly via
+rb_entry(node, type, member).
+
+Example:
+
+  struct rb_node *node;
+  for (node = rb_first(&mytree); node; node = rb_next(node))
+  	printk("key=%s\n", rb_entry(node, int, keystring));
+

Documentation/rtc.txt

@@ -149,7 +149,7 @@ RTC class framework, but can't be supported by the older driver.
 	is connected to an IRQ line, it can often issue an alarm IRQ up to
 	24 hours in the future.
 
-    *	RTC_WKALM_SET, RTC_WKALM_READ ... RTCs that can issue alarms beyond
+    *	RTC_WKALM_SET, RTC_WKALM_RD ... RTCs that can issue alarms beyond
 	the next 24 hours use a slightly more powerful API, which supports
 	setting the longer alarm time and enabling its IRQ using a single
 	request (using the same model as EFI firmware).
@@ -167,6 +167,28 @@ Linux out of a low power sleep state (or hibernation) back to a fully
 operational state.  For example, a system could enter a deep power saving
 state until it's time to execute some scheduled tasks.
 
+Note that many of these ioctls need not actually be implemented by your
+driver.  The common rtc-dev interface handles many of these nicely if your
+driver returns ENOIOCTLCMD.  Some common examples:
+
+    *	RTC_RD_TIME, RTC_SET_TIME: the read_time/set_time functions will be
+	called with appropriate values.
+
+    *	RTC_ALM_SET, RTC_ALM_READ, RTC_WKALM_SET, RTC_WKALM_RD: the
+	set_alarm/read_alarm functions will be called.  To differentiate
+	between the ALM and WKALM, check the larger fields of the rtc_wkalrm
+	struct (like tm_year).  These will be set to -1 when using ALM and
+	will be set to proper values when using WKALM.
+
+    *	RTC_IRQP_SET, RTC_IRQP_READ: the irq_set_freq function will be called
+	to set the frequency while the framework will handle the read for you
+	since the frequency is stored in the irq_freq member of the rtc_device
+	structure.  Also make sure you set the max_user_freq member in your
+	initialization routines so the framework can sanity check the user
+	input for you.
+
+If all else fails, check out the rtc-test.c driver!
+
 
 -------------------- 8< ---------------- 8< -----------------------------
 
@@ -237,7 +259,7 @@ int main(int argc, char **argv)
 				"\n...Update IRQs not supported.\n");
 			goto test_READ;
 		}
-		perror("ioctl");
+		perror("RTC_UIE_ON ioctl");
 		exit(errno);
 	}
 
@@ -284,7 +306,7 @@ int main(int argc, char **argv)
 	/* Turn off update interrupts */
 	retval = ioctl(fd, RTC_UIE_OFF, 0);
 	if (retval == -1) {
-		perror("ioctl");
+		perror("RTC_UIE_OFF ioctl");
 		exit(errno);
 	}
 
@@ -292,7 +314,7 @@ test_READ:
 	/* Read the RTC time/date */
 	retval = ioctl(fd, RTC_RD_TIME, &rtc_tm);
 	if (retval == -1) {
-		perror("ioctl");
+		perror("RTC_RD_TIME ioctl");
 		exit(errno);
 	}
 
@@ -320,14 +342,14 @@ test_READ:
 				"\n...Alarm IRQs not supported.\n");
 			goto test_PIE;
 		}
-		perror("ioctl");
+		perror("RTC_ALM_SET ioctl");
 		exit(errno);
 	}
 
 	/* Read the current alarm settings */
 	retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
 	if (retval == -1) {
-		perror("ioctl");
+		perror("RTC_ALM_READ ioctl");
 		exit(errno);
 	}
 
@@ -337,7 +359,7 @@ test_READ:
 	/* Enable alarm interrupts */
 	retval = ioctl(fd, RTC_AIE_ON, 0);
 	if (retval == -1) {
-		perror("ioctl");
+		perror("RTC_AIE_ON ioctl");
 		exit(errno);
 	}
 
@@ -355,7 +377,7 @@ test_READ:
 	/* Disable alarm interrupts */
 	retval = ioctl(fd, RTC_AIE_OFF, 0);
 	if (retval == -1) {
-		perror("ioctl");
+		perror("RTC_AIE_OFF ioctl");
 		exit(errno);
 	}
 
@@ -368,7 +390,7 @@ test_PIE:
 			fprintf(stderr, "\nNo periodic IRQ support\n");
 			return 0;
 		}
-		perror("ioctl");
+		perror("RTC_IRQP_READ ioctl");
 		exit(errno);
 	}
 	fprintf(stderr, "\nPeriodic IRQ rate is %ldHz.\n", tmp);
@@ -387,7 +409,7 @@ test_PIE:
 					"\n...Periodic IRQ rate is fixed\n");
 				goto done;
 			}
-		        perror("ioctl");
+		        perror("RTC_IRQP_SET ioctl");
 		        exit(errno);
 		}
 
@@ -397,7 +419,7 @@ test_PIE:
 		/* Enable periodic interrupts */
 		retval = ioctl(fd, RTC_PIE_ON, 0);
 		if (retval == -1) {
-		        perror("ioctl");
+		        perror("RTC_PIE_ON ioctl");
 		        exit(errno);
 		}
 
@@ -416,7 +438,7 @@ test_PIE:
 		/* Disable periodic interrupts */
 		retval = ioctl(fd, RTC_PIE_OFF, 0);
 		if (retval == -1) {
-		        perror("ioctl");
+		        perror("RTC_PIE_OFF ioctl");
 		        exit(errno);
 		}
 	}

Documentation/scsi/ChangeLog.megaraid

@@ -1,3 +1,19 @@
+Release Date	: Thu Nov 16 15:32:35 EST 2006 -
+				Sumant Patro <sumant.patro@lsi.com>
+Current Version : 2.20.5.1 (scsi module), 2.20.2.6 (cmm module)
+Older Version	: 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
+
+1.	Changes in Initialization to fix kdump failure.
+	Send SYNC command on loading.
+	This command clears the pending commands in the adapter
+	and re-initialize its internal RAID structure.
+	Without this change, megaraid driver either panics or fails to
+	initialize the adapter during kdump's second kernel boot
+	if there are pending commands or interrupts from other devices
+	sharing the same IRQ.
+2. 	Authors email-id domain name changed from lsil.com to lsi.com.
+	Also modified the MODULE_AUTHOR to megaraidlinux@lsi.com
+
 Release Date	: Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com>
 Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
 Older Version	: 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)

Documentation/sound/alsa/ALSA-Configuration.txt

@@ -242,6 +242,12 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     ac97_clock		- AC'97 clock (default = 48000)
     ac97_quirk		- AC'97 workaround for strange hardware
 			  See "AC97 Quirk Option" section below.
+    ac97_codec		- Workaround to specify which AC'97 codec 
+			  instead of probing.  If this works for you
+			  file a bug with your `lspci -vn` output.
+			  -2  -- Force probing.
+			  -1  -- Default behavior.
+			  0-2 -- Use the specified codec.
     spdif_aclink	- S/PDIF transfer over AC-link (default = 1)
 
     This module supports one card and autoprobe.
@@ -779,6 +785,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  asus-dig	ASUS with SPDIF out
 	  asus-dig2	ASUS with SPDIF out (using GPIO2)
 	  uniwill	3-jack
+	  fujitsu	Fujitsu Laptops (Pi1536)
 	  F1734		2-jack
 	  lg		LG laptop (m1 express dual)
 	  lg-lw		LG LW20/LW25 laptop
@@ -800,14 +807,18 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	ALC262
 	  fujitsu	Fujitsu Laptop
 	  hp-bpc	HP xw4400/6400/8400/9400 laptops
+	  hp-bpc-d7000	HP BPC D7000
 	  benq		Benq ED8
+	  hippo		Hippo (ATI) with jack detection, Sony UX-90s
+	  hippo_1	Hippo (Benq) with jack detection
 	  basic		fixed pin assignment w/o SPDIF
 	  auto		auto-config reading BIOS (default)
 
 	ALC882/885
 	  3stack-dig	3-jack with SPDIF I/O
-	  6stck-dig	6-jack digital with SPDIF I/O
+	  6stack-dig	6-jack digital with SPDIF I/O
 	  arima		Arima W820Di1
+	  macpro	MacPro support
 	  auto		auto-config reading BIOS (default)
 
 	ALC883/888
@@ -817,6 +828,10 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
 	  6stack-dig-demo  6-jack digital for Intel demo board
 	  acer		Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
+	  medion	Medion Laptops
+	  targa-dig	Targa/MSI
+	  targa-2ch-dig	Targs/MSI with 2-channel
+	  laptop-eapd   3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
 	  auto		auto-config reading BIOS (default)
 
 	ALC861/660
@@ -825,6 +840,16 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  6stack-dig	6-jack with SPDIF I/O
 	  3stack-660	3-jack (for ALC660)
 	  uniwill-m31	Uniwill M31 laptop
+	  toshiba	Toshiba laptop support
+	  asus		Asus laptop support
+	  asus-laptop	ASUS F2/F3 laptops
+	  auto		auto-config reading BIOS (default)
+
+	ALC861VD/660VD
+	  3stack	3-jack
+	  3stack-dig	3-jack with SPDIF OUT
+	  6stack-dig	6-jack with SPDIF OUT
+	  3stack-660	3-jack (for ALC660VD)
 	  auto		auto-config reading BIOS (default)
 
 	CMI9880
@@ -845,6 +870,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  3stack	3-stack, shared surrounds
 	  laptop	2-channel only (FSC V2060, Samsung M50)
 	  laptop-eapd	2-channel with EAPD (Samsung R65, ASUS A6J)
+	  ultra		2-channel with EAPD (Samsung Ultra tablet PC)
 
 	AD1988
 	  6stack	6-jack
@@ -854,12 +880,31 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 	  laptop	3-jack with hp-jack automute
 	  laptop-dig	ditto with SPDIF
 	  auto		auto-config reading BIOS (default)
+	
+	Conexant 5045
+	  laptop	Laptop config 
+	  test		for testing/debugging purpose, almost all controls
+			can be adjusted.  Appearing only when compiled with
+			$CONFIG_SND_DEBUG=y
+
+	Conexant 5047
+	  laptop	Basic Laptop config 
+	  laptop-hp	Laptop config for some HP models (subdevice 30A5)
+	  laptop-eapd	Laptop config with EAPD support
+	  test		for testing/debugging purpose, almost all controls
+			can be adjusted.  Appearing only when compiled with
+			$CONFIG_SND_DEBUG=y
 
 	STAC9200/9205/9220/9221/9254
 	  ref		Reference board
 	  3stack	D945 3stack
 	  5stack	D945 5stack + SPDIF
 
+	STAC9202/9250/9251
+	  ref		Reference board, base config
+	  m2-2		Some Gateway MX series laptops
+	  m6		Some Gateway NX series laptops
+
 	STAC9227/9228/9229/927x
 	  ref		Reference board
 	  3stack	D965 3stack
@@ -974,6 +1019,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
 			* MidiMan M Audio Revolution 5.1
 			* MidiMan M Audio Revolution 7.1
+			* MidiMan M Audio Audiophile 192
 			* AMP Ltd AUDIO2000
 			* TerraTec Aureon 5.1 Sky
 			* TerraTec Aureon 7.1 Space
@@ -993,7 +1039,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     model       - Use the given board model, one of the following:
 		  revo51, revo71, amp2000, prodigy71, prodigy71lt,
-		  prodigy192, aureon51, aureon71, universe,
+		  prodigy192, aureon51, aureon71, universe, ap192,
 		  k8x800, phase22, phase28, ms300, av710
 
     This module supports multiple cards and autoprobe.
@@ -1049,6 +1095,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     buggy_semaphore - Enable workaround for hardwares with buggy
 		    semaphores (e.g. on some ASUS laptops)
 		    (default off)
+    spdif_aclink  - Use S/PDIF over AC-link instead of direct connection
+		    from the controller chip
+		    (0 = off, 1 = on, -1 = default)
 
     This module supports one chip and autoprobe.
 
@@ -1371,6 +1420,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     This module supports multiple cards.
 
+  Module snd-portman2x4
+  ---------------------
+
+    Module for Midiman Portman 2x4 parallel port MIDI interface
+
+    This module supports multiple cards.
+
   Module snd-powermac (on ppc only)
   ---------------------------------
 

Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl

@@ -36,7 +36,7 @@
   </bookinfo>
 
   <chapter><title>Management of Cards and Devices</title>
-     <sect1><title>Card Managment</title>
+     <sect1><title>Card Management</title>
 !Esound/core/init.c
      </sect1>
      <sect1><title>Device Components</title>
@@ -59,7 +59,7 @@
      <sect1><title>PCM Format Helpers</title>
 !Esound/core/pcm_misc.c
      </sect1>
-     <sect1><title>PCM Memory Managment</title>
+     <sect1><title>PCM Memory Management</title>
 !Esound/core/pcm_memory.c
      </sect1>
   </chapter>

Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl

@@ -1360,8 +1360,7 @@
         <informalexample>
           <programlisting>
 <![CDATA[
-  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id,
-                                          struct pt_regs *regs)
+  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id)
   {
           struct mychip *chip = dev_id;
           ....
@@ -2127,7 +2126,7 @@
 	accessible via <constant>substream-&gt;runtime</constant>.
 	This runtime pointer holds the various information; it holds
 	the copy of hw_params and sw_params configurations, the buffer
-	pointers, mmap records, spinlocks, etc.  Almost everyhing you
+	pointers, mmap records, spinlocks, etc.  Almost everything you
 	need for controlling the PCM can be found there.
 	</para>
 
@@ -2340,7 +2339,7 @@ struct _snd_pcm_runtime {
 
 	<para>
 	  When the PCM substreams can be synchronized (typically,
-	synchorinized start/stop of a playback and a capture streams),
+	synchronized start/stop of a playback and a capture streams),
 	you can give <constant>SNDRV_PCM_INFO_SYNC_START</constant>,
 	too.  In this case, you'll need to check the linked-list of
 	PCM substreams in the trigger callback.  This will be
@@ -3062,8 +3061,7 @@ struct _snd_pcm_runtime {
 	    <title>Interrupt Handler Case #1</title>
             <programlisting>
 <![CDATA[
-  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id,
-                                          struct pt_regs *regs)
+  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id)
   {
           struct mychip *chip = dev_id;
           spin_lock(&chip->lock);
@@ -3106,8 +3104,7 @@ struct _snd_pcm_runtime {
 	    <title>Interrupt Handler Case #2</title>
             <programlisting>
 <![CDATA[
-  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id,
-                                          struct pt_regs *regs)
+  static irqreturn_t snd_mychip_interrupt(int irq, void *dev_id)
   {
           struct mychip *chip = dev_id;
           spin_lock(&chip->lock);
@@ -3247,7 +3244,7 @@ struct _snd_pcm_runtime {
         You can even define your own constraint rules.
         For example, let's suppose my_chip can manage a substream of 1 channel
         if and only if the format is S16_LE, otherwise it supports any format
-        specified in the <structname>snd_pcm_hardware</structname> stucture (or in any
+        specified in the <structname>snd_pcm_hardware</structname> structure (or in any
         other constraint_list). You can build a rule like this:
 
         <example>
@@ -3690,16 +3687,6 @@ struct _snd_pcm_runtime {
           </example>
         </para>
 
-        <para>
-          Here, the chip instance is retrieved via
-        <function>snd_kcontrol_chip()</function> macro.  This macro
-        just accesses to kcontrol-&gt;private_data. The
-        kcontrol-&gt;private_data field is 
-        given as the argument of <function>snd_ctl_new()</function>
-        (see the later subsection
-        <link linkend="control-interface-constructor"><citetitle>Constructor</citetitle></link>).
-        </para>
-
         <para>
 	The <structfield>value</structfield> field is depending on
         the type of control as well as on info callback.  For example,
@@ -3780,7 +3767,7 @@ struct _snd_pcm_runtime {
         <para>
 	Like <structfield>get</structfield> callback,
 	when the control has more than one elements,
-	all elemehts must be evaluated in this callback, too.
+	all elements must be evaluated in this callback, too.
         </para>
       </section>
 
@@ -5541,12 +5528,12 @@ struct _snd_pcm_runtime {
   #ifdef CONFIG_PM
   static int snd_my_suspend(struct pci_dev *pci, pm_message_t state)
   {
-          .... /* do things for suspsend */
+          .... /* do things for suspend */
           return 0;
   }
   static int snd_my_resume(struct pci_dev *pci)
   {
-          .... /* do things for suspsend */
+          .... /* do things for suspend */
           return 0;
   }
   #endif
@@ -6111,7 +6098,7 @@ struct _snd_pcm_runtime {
 <!-- ****************************************************** -->
 <!-- Acknowledgments  -->
 <!-- ****************************************************** -->
-  <chapter id="acknowledments">
+  <chapter id="acknowledgments">
     <title>Acknowledgments</title>
     <para>
       I would like to thank Phil Kerr for his help for improvement and

Documentation/sound/alsa/hda_codec.txt

@@ -277,11 +277,11 @@ Helper Functions
 snd_hda_get_codec_name() stores the codec name on the given string.
 
 snd_hda_check_board_config() can be used to obtain the configuration
-information matching with the device.  Define the table with struct
-hda_board_config entries (zero-terminated), and pass it to the
-function.  The function checks the modelname given as a module
-parameter, and PCI subsystem IDs.  If the matching entry is found, it
-returns the config field value.
+information matching with the device.  Define the model string table
+and the table with struct snd_pci_quirk entries (zero-terminated),
+and pass it to the function.  The function checks the modelname given
+as a module parameter, and PCI subsystem IDs.  If the matching entry
+is found, it returns the config field value.
 
 snd_hda_add_new_ctls() can be used to create and add control entries.
 Pass the zero-terminated array of struct snd_kcontrol_new.  The same array

Documentation/sound/alsa/soc/DAI.txt

@@ -0,0 +1,56 @@
+ASoC currently supports the three main Digital Audio Interfaces (DAI) found on
+SoC controllers and portable audio CODECS today, namely AC97, I2S and PCM.
+
+
+AC97
+====
+
+  AC97 is a five wire interface commonly found on many PC sound cards. It is
+now also popular in many portable devices. This DAI has a reset line and time
+multiplexes its data on its SDATA_OUT (playback) and SDATA_IN (capture) lines.
+The bit clock (BCLK) is always driven by the CODEC (usually 12.288MHz) and the
+frame (FRAME) (usually 48kHz) is always driven by the controller. Each AC97
+frame is 21uS long and is divided into 13 time slots.
+
+The AC97 specification can be found at :-
+http://www.intel.com/design/chipsets/audio/ac97_r23.pdf
+
+
+I2S
+===
+
+ I2S is a common 4 wire DAI used in HiFi, STB and portable devices. The Tx and
+Rx lines are used for audio transmision, whilst the bit clock (BCLK) and
+left/right clock (LRC) synchronise the link. I2S is flexible in that either the
+controller or CODEC can drive (master) the BCLK and LRC clock lines. Bit clock
+usually varies depending on the sample rate and the master system clock
+(SYSCLK). LRCLK is the same as the sample rate. A few devices support separate
+ADC and DAC LRCLK's, this allows for similtanious capture and playback at
+different sample rates.
+
+I2S has several different operating modes:-
+
+ o I2S - MSB is transmitted on the falling edge of the first BCLK after LRC
+         transition.
+
+ o Left Justified - MSB is transmitted on transition of LRC.
+
+ o Right Justified - MSB is transmitted sample size BCLK's before LRC
+                     transition.
+
+PCM
+===
+
+PCM is another 4 wire interface, very similar to I2S, that can support a more
+flexible protocol. It has bit clock (BCLK) and sync (SYNC) lines that are used
+to synchronise the link whilst the Tx and Rx lines are used to transmit and
+receive the audio data. Bit clock usually varies depending on sample rate
+whilst sync runs at the sample rate. PCM also supports Time Division
+Multiplexing (TDM) in that several devices can use the bus similtaniuosly (This
+is sometimes referred to as network mode).
+
+Common PCM operating modes:-
+
+ o Mode A - MSB is transmitted on falling edge of first BCLK after FRAME/SYNC.
+
+ o Mode B - MSB is transmitted on rising edge of FRAME/SYNC.

Documentation/sound/alsa/soc/clocking.txt

@@ -0,0 +1,51 @@
+Audio Clocking
+==============
+
+This text describes the audio clocking terms in ASoC and digital audio in
+general. Note: Audio clocking can be complex !
+
+
+Master Clock
+------------
+
+Every audio subsystem is driven by a master clock (sometimes refered to as MCLK
+or SYSCLK). This audio master clock can be derived from a number of sources
+(e.g. crystal, PLL, CPU clock) and is responsible for producing the correct
+audio playback and capture sample rates.
+
+Some master clocks (e.g. PLL's and CPU based clocks) are configuarble in that
+their speed can be altered by software (depending on the system use and to save
+power). Other master clocks are fixed at at set frequency (i.e. crystals).
+
+
+DAI Clocks
+----------
+The Digital Audio Interface is usually driven by a Bit Clock (often referred to
+as BCLK). This clock is used to drive the digital audio data across the link
+between the codec and CPU.
+
+The DAI also has a frame clock to signal the start of each audio frame. This
+clock is sometimes referred to as LRC (left right clock) or FRAME. This clock
+runs at exactly the sample rate (LRC = Rate).
+
+Bit Clock can be generated as follows:-
+
+BCLK = MCLK / x
+
+ or
+
+BCLK = LRC * x
+
+ or
+
+BCLK = LRC * Channels * Word Size
+
+This relationship depends on the codec or SoC CPU in particular. In general
+it's best to configure BCLK to the lowest possible speed (depending on your
+rate, number of channels and wordsize) to save on power.
+
+It's also desireable to use the codec (if possible) to drive (or master) the
+audio clocks as it's usually gives more accurate sample rates than the CPU.
+
+
+

Documentation/sound/alsa/soc/codec.txt

@@ -0,0 +1,197 @@
+ASoC Codec Driver
+=================
+
+The codec driver is generic and hardware independent code that configures the
+codec to provide audio capture and playback. It should contain no code that is
+specific to the target platform or machine. All platform and machine specific
+code should be added to the platform and machine drivers respectively.
+
+Each codec driver *must* provide the following features:-
+
+ 1) Codec DAI and PCM configuration
+ 2) Codec control IO - using I2C, 3 Wire(SPI) or both API's
+ 3) Mixers and audio controls
+ 4) Codec audio operations
+
+Optionally, codec drivers can also provide:-
+
+ 5) DAPM description.
+ 6) DAPM event handler.
+ 7) DAC Digital mute control.
+
+It's probably best to use this guide in conjuction with the existing codec
+driver code in sound/soc/codecs/
+
+ASoC Codec driver breakdown
+===========================
+
+1 - Codec DAI and PCM configuration
+-----------------------------------
+Each codec driver must have a struct snd_soc_codec_dai to define it's DAI and
+PCM's capablities and operations. This struct is exported so that it can be
+registered with the core by your machine driver.
+
+e.g.
+
+struct snd_soc_codec_dai wm8731_dai = {
+	.name = "WM8731",
+	/* playback capabilities */
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8731_RATES,
+		.formats = WM8731_FORMATS,},
+	/* capture capabilities */
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8731_RATES,
+		.formats = WM8731_FORMATS,},
+	/* pcm operations - see section 4 below */
+	.ops = {
+		.prepare = wm8731_pcm_prepare,
+		.hw_params = wm8731_hw_params,
+		.shutdown = wm8731_shutdown,
+	},
+	/* DAI operations - see DAI.txt */
+	.dai_ops = {
+		.digital_mute = wm8731_mute,
+		.set_sysclk = wm8731_set_dai_sysclk,
+		.set_fmt = wm8731_set_dai_fmt,
+	}
+};
+EXPORT_SYMBOL_GPL(wm8731_dai);
+
+
+2 - Codec control IO
+--------------------
+The codec can ususally be controlled via an I2C or SPI style interface (AC97
+combines control with data in the DAI). The codec drivers will have to provide
+functions to read and write the codec registers along with supplying a register
+cache:-
+
+	/* IO control data and register cache */
+    void *control_data; /* codec control (i2c/3wire) data */
+    void *reg_cache;
+
+Codec read/write should do any data formatting and call the hardware read write
+below to perform the IO. These functions are called by the core and alsa when
+performing DAPM or changing the mixer:-
+
+    unsigned int (*read)(struct snd_soc_codec *, unsigned int);
+    int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
+
+Codec hardware IO functions - usually points to either the I2C, SPI or AC97
+read/write:-
+
+	hw_write_t hw_write;
+	hw_read_t hw_read;
+
+
+3 - Mixers and audio controls
+-----------------------------
+All the codec mixers and audio controls can be defined using the convenience
+macros defined in soc.h.
+
+    #define SOC_SINGLE(xname, reg, shift, mask, invert)
+
+Defines a single control as follows:-
+
+  xname = Control name e.g. "Playback Volume"
+  reg = codec register
+  shift = control bit(s) offset in register
+  mask = control bit size(s) e.g. mask of 7 = 3 bits
+  invert = the control is inverted
+
+Other macros include:-
+
+    #define SOC_DOUBLE(xname, reg, shift_left, shift_right, mask, invert)
+
+A stereo control
+
+    #define SOC_DOUBLE_R(xname, reg_left, reg_right, shift, mask, invert)
+
+A stereo control spanning 2 registers
+
+    #define SOC_ENUM_SINGLE(xreg, xshift, xmask, xtexts)
+
+Defines an single enumerated control as follows:-
+
+   xreg = register
+   xshift = control bit(s) offset in register
+   xmask = control bit(s) size
+   xtexts = pointer to array of strings that describe each setting
+
+   #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts)
+
+Defines a stereo enumerated control
+
+
+4 - Codec Audio Operations
+--------------------------
+The codec driver also supports the following alsa operations:-
+
+/* SoC audio ops */
+struct snd_soc_ops {
+	int (*startup)(struct snd_pcm_substream *);
+	void (*shutdown)(struct snd_pcm_substream *);
+	int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
+	int (*hw_free)(struct snd_pcm_substream *);
+	int (*prepare)(struct snd_pcm_substream *);
+};
+
+Please refer to the alsa driver PCM documentation for details.
+http://www.alsa-project.org/~iwai/writing-an-alsa-driver/c436.htm
+
+
+5 - DAPM description.
+---------------------
+The Dynamic Audio Power Management description describes the codec's power
+components, their relationships and registers to the ASoC core. Please read
+dapm.txt for details of building the description.
+
+Please also see the examples in other codec drivers.
+
+
+6 - DAPM event handler
+----------------------
+This function is a callback that handles codec domain PM calls and system
+domain PM calls (e.g. suspend and resume). It's used to put the codec to sleep
+when not in use.
+
+Power states:-
+
+	SNDRV_CTL_POWER_D0: /* full On */
+	/* vref/mid, clk and osc on, active */
+
+	SNDRV_CTL_POWER_D1: /* partial On */
+	SNDRV_CTL_POWER_D2: /* partial On */
+
+	SNDRV_CTL_POWER_D3hot: /* Off, with power */
+	/* everything off except vref/vmid, inactive */
+
+	SNDRV_CTL_POWER_D3cold: /* Everything Off, without power */
+
+
+7 - Codec DAC digital mute control.
+------------------------------------
+Most codecs have a digital mute before the DAC's that can be used to minimise
+any system noise.  The mute stops any digital data from entering the DAC.
+
+A callback can be created that is called by the core for each codec DAI when the
+mute is applied or freed.
+
+i.e.
+
+static int wm8974_mute(struct snd_soc_codec *codec,
+	struct snd_soc_codec_dai *dai, int mute)
+{
+	u16 mute_reg = wm8974_read_reg_cache(codec, WM8974_DAC) & 0xffbf;
+	if(mute)
+		wm8974_write(codec, WM8974_DAC, mute_reg | 0x40);
+	else
+		wm8974_write(codec, WM8974_DAC, mute_reg);
+	return 0;
+}

Documentation/sound/alsa/soc/dapm.txt

@@ -0,0 +1,297 @@
+Dynamic Audio Power Management for Portable Devices
+===================================================
+
+1. Description
+==============
+
+Dynamic Audio Power Management (DAPM) is designed to allow portable Linux devices
+to use the minimum amount of power within the audio subsystem at all times. It
+is independent of other kernel PM and as such, can easily co-exist with the
+other PM systems.
+
+DAPM is also completely transparent to all user space applications as all power
+switching is done within the ASoC core. No code changes or recompiling are
+required for user space applications. DAPM makes power switching descisions based
+upon any audio stream (capture/playback) activity and audio mixer settings
+within the device.
+
+DAPM spans the whole machine. It covers power control within the entire audio
+subsystem, this includes internal codec power blocks and machine level power
+systems.
+
+There are 4 power domains within DAPM
+
+   1. Codec domain - VREF, VMID (core codec and audio power)
+      Usually controlled at codec probe/remove and suspend/resume, although
+      can be set at stream time if power is not needed for sidetone, etc.
+
+   2. Platform/Machine domain - physically connected inputs and outputs
+      Is platform/machine and user action specific, is configured by the
+      machine driver and responds to asynchronous events e.g when HP
+      are inserted
+
+   3. Path domain - audio susbsystem signal paths
+      Automatically set when mixer and mux settings are changed by the user.
+      e.g. alsamixer, amixer.
+
+   4. Stream domain - DAC's and ADC's.
+      Enabled and disabled when stream playback/capture is started and
+      stopped respectively. e.g. aplay, arecord.
+
+All DAPM power switching descisons are made automatically by consulting an audio
+routing map of the whole machine. This map is specific to each machine and
+consists of the interconnections between every audio component (including
+internal codec components). All audio components that effect power are called
+widgets hereafter.
+
+
+2. DAPM Widgets
+===============
+
+Audio DAPM widgets fall into a number of types:-
+
+ o Mixer      - Mixes several analog signals into a single analog signal.
+ o Mux        - An analog switch that outputs only 1 of it's inputs.
+ o PGA        - A programmable gain amplifier or attenuation widget.
+ o ADC        - Analog to Digital Converter
+ o DAC        - Digital to Analog Converter
+ o Switch     - An analog switch
+ o Input      - A codec input pin
+ o Output     - A codec output pin
+ o Headphone  - Headphone (and optional Jack)
+ o Mic        - Mic (and optional Jack)
+ o Line       - Line Input/Output (and optional Jack)
+ o Speaker    - Speaker
+ o Pre        - Special PRE widget (exec before all others)
+ o Post       - Special POST widget (exec after all others)
+
+(Widgets are defined in include/sound/soc-dapm.h)
+
+Widgets are usually added in the codec driver and the machine driver. There are
+convience macros defined in soc-dapm.h that can be used to quickly build a
+list of widgets of the codecs and machines DAPM widgets.
+
+Most widgets have a name, register, shift and invert. Some widgets have extra
+parameters for stream name and kcontrols.
+
+
+2.1 Stream Domain Widgets
+-------------------------
+
+Stream Widgets relate to the stream power domain and only consist of ADC's
+(analog to digital converters) and DAC's (digital to analog converters).
+
+Stream widgets have the following format:-
+
+SND_SOC_DAPM_DAC(name, stream name, reg, shift, invert),
+
+NOTE: the stream name must match the corresponding stream name in your codecs
+snd_soc_codec_dai.
+
+e.g. stream widgets for HiFi playback and capture
+
+SND_SOC_DAPM_DAC("HiFi DAC", "HiFi Playback", REG, 3, 1),
+SND_SOC_DAPM_ADC("HiFi ADC", "HiFi Capture", REG, 2, 1),
+
+
+2.2 Path Domain Widgets
+-----------------------
+
+Path domain widgets have a ability to control or effect the audio signal or
+audio paths within the audio subsystem. They have the following form:-
+
+SND_SOC_DAPM_PGA(name, reg, shift, invert, controls, num_controls)
+
+Any widget kcontrols can be set using the controls and num_controls members.
+
+e.g. Mixer widget (the kcontrols are declared first)
+
+/* Output Mixer */
+static const snd_kcontrol_new_t wm8731_output_mixer_controls[] = {
+SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0),
+SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0),
+SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0),
+};
+
+SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, wm8731_output_mixer_controls,
+	ARRAY_SIZE(wm8731_output_mixer_controls)),
+
+
+2.3 Platform/Machine domain Widgets
+-----------------------------------
+
+Machine widgets are different from codec widgets in that they don't have a
+codec register bit associated with them. A machine widget is assigned to each
+machine audio component (non codec) that can be independently powered. e.g.
+
+ o Speaker Amp
+ o Microphone Bias
+ o Jack connectors
+
+A machine widget can have an optional call back.
+
+e.g. Jack connector widget for an external Mic that enables Mic Bias
+when the Mic is inserted:-
+
+static int spitz_mic_bias(struct snd_soc_dapm_widget* w, int event)
+{
+	if(SND_SOC_DAPM_EVENT_ON(event))
+		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_MIC_BIAS);
+	else
+		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_MIC_BIAS);
+
+	return 0;
+}
+
+SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
+
+
+2.4 Codec Domain
+----------------
+
+The Codec power domain has no widgets and is handled by the codecs DAPM event
+handler. This handler is called when the codec powerstate is changed wrt to any
+stream event or by kernel PM events.
+
+
+2.5 Virtual Widgets
+-------------------
+
+Sometimes widgets exist in the codec or machine audio map that don't have any
+corresponding register bit for power control. In this case it's necessary to
+create a virtual widget - a widget with no control bits e.g.
+
+SND_SOC_DAPM_MIXER("AC97 Mixer", SND_SOC_DAPM_NOPM, 0, 0, NULL, 0),
+
+This can be used to merge to signal paths together in software.
+
+After all the widgets have been defined, they can then be added to the DAPM
+subsystem individually with a call to snd_soc_dapm_new_control().
+
+
+3. Codec Widget Interconnections
+================================
+
+Widgets are connected to each other within the codec and machine by audio
+paths (called interconnections). Each interconnection must be defined in order
+to create a map of all audio paths between widgets.
+This is easiest with a diagram of the codec (and schematic of the machine audio
+system), as it requires joining widgets together via their audio signal paths.
+
+i.e. from the WM8731 codec's output mixer (wm8731.c)
+
+The WM8731 output mixer has 3 inputs (sources)
+
+ 1. Line Bypass Input
+ 2. DAC (HiFi playback)
+ 3. Mic Sidetone Input
+
+Each input in this example has a kcontrol associated with it (defined in example
+above) and is connected to the output mixer via it's kcontrol name. We can now
+connect the destination widget (wrt audio signal) with it's source widgets.
+
+	/* output mixer */
+	{"Output Mixer", "Line Bypass Switch", "Line Input"},
+	{"Output Mixer", "HiFi Playback Switch", "DAC"},
+	{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
+
+So we have :-
+
+	Destination Widget  <=== Path Name <=== Source Widget
+
+Or:-
+
+	Sink, Path, Source
+
+Or :-
+
+	"Output Mixer" is connected to the "DAC" via the "HiFi Playback Switch".
+
+When there is no path name connecting widgets (e.g. a direct connection) we
+pass NULL for the path name.
+
+Interconnections are created with a call to:-
+
+snd_soc_dapm_connect_input(codec, sink, path, source);
+
+Finally, snd_soc_dapm_new_widgets(codec) must be called after all widgets and
+interconnections have been registered with the core. This causes the core to
+scan the codec and machine so that the internal DAPM state matches the
+physical state of the machine.
+
+
+3.1 Machine Widget Interconnections
+-----------------------------------
+Machine widget interconnections are created in the same way as codec ones and
+directly connect the codec pins to machine level widgets.
+
+e.g. connects the speaker out codec pins to the internal speaker.
+
+	/* ext speaker connected to codec pins LOUT2, ROUT2  */
+	{"Ext Spk", NULL , "ROUT2"},
+	{"Ext Spk", NULL , "LOUT2"},
+
+This allows the DAPM to power on and off pins that are connected (and in use)
+and pins that are NC respectively.
+
+
+4 Endpoint Widgets
+===================
+An endpoint is a start or end point (widget) of an audio signal within the
+machine and includes the codec. e.g.
+
+ o Headphone Jack
+ o Internal Speaker
+ o Internal Mic
+ o Mic Jack
+ o Codec Pins
+
+When a codec pin is NC it can be marked as not used with a call to
+
+snd_soc_dapm_set_endpoint(codec, "Widget Name", 0);
+
+The last argument is 0 for inactive and 1 for active. This way the pin and its
+input widget will never be powered up and consume power.
+
+This also applies to machine widgets. e.g. if a headphone is connected to a
+jack then the jack can be marked active. If the headphone is removed, then
+the headphone jack can be marked inactive.
+
+
+5 DAPM Widget Events
+====================
+
+Some widgets can register their interest with the DAPM core in PM events.
+e.g. A Speaker with an amplifier registers a widget so the amplifier can be
+powered only when the spk is in use.
+
+/* turn speaker amplifier on/off depending on use */
+static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event)
+{
+	if (SND_SOC_DAPM_EVENT_ON(event))
+		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
+	else
+		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
+
+	return 0;
+}
+
+/* corgi machine dapm widgets */
+static const struct snd_soc_dapm_widget wm8731_dapm_widgets =
+	SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event);
+
+Please see soc-dapm.h for all other widgets that support events.
+
+
+5.1 Event types
+---------------
+
+The following event types are supported by event widgets.
+
+/* dapm event types */
+#define SND_SOC_DAPM_PRE_PMU	0x1 	/* before widget power up */
+#define SND_SOC_DAPM_POST_PMU	0x2		/* after widget power up */
+#define SND_SOC_DAPM_PRE_PMD	0x4 	/* before widget power down */
+#define SND_SOC_DAPM_POST_PMD	0x8		/* after widget power down */
+#define SND_SOC_DAPM_PRE_REG	0x10	/* before audio path setup */
+#define SND_SOC_DAPM_POST_REG	0x20	/* after audio path setup */

Documentation/sound/alsa/soc/machine.txt

@@ -0,0 +1,113 @@
+ASoC Machine Driver
+===================
+
+The ASoC machine (or board) driver is the code that glues together the platform
+and codec drivers.
+
+The machine driver can contain codec and platform specific code. It registers
+the audio subsystem with the kernel as a platform device and is represented by
+the following struct:-
+
+/* SoC machine */
+struct snd_soc_machine {
+	char *name;
+
+	int (*probe)(struct platform_device *pdev);
+	int (*remove)(struct platform_device *pdev);
+
+	/* the pre and post PM functions are used to do any PM work before and
+	 * after the codec and DAI's do any PM work. */
+	int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
+	int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
+	int (*resume_pre)(struct platform_device *pdev);
+	int (*resume_post)(struct platform_device *pdev);
+
+	/* machine stream operations */
+	struct snd_soc_ops *ops;
+
+	/* CPU <--> Codec DAI links  */
+	struct snd_soc_dai_link *dai_link;
+	int num_links;
+};
+
+probe()/remove()
+----------------
+probe/remove are optional. Do any machine specific probe here.
+
+
+suspend()/resume()
+------------------
+The machine driver has pre and post versions of suspend and resume to take care
+of any machine audio tasks that have to be done before or after the codec, DAI's
+and DMA is suspended and resumed. Optional.
+
+
+Machine operations
+------------------
+The machine specific audio operations can be set here. Again this is optional.
+
+
+Machine DAI Configuration
+-------------------------
+The machine DAI configuration glues all the codec and CPU DAI's together. It can
+also be used to set up the DAI system clock and for any machine related DAI
+initialisation e.g. the machine audio map can be connected to the codec audio
+map, unconnnected codec pins can be set as such. Please see corgi.c, spitz.c
+for examples.
+
+struct snd_soc_dai_link is used to set up each DAI in your machine. e.g.
+
+/* corgi digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link corgi_dai = {
+	.name = "WM8731",
+	.stream_name = "WM8731",
+	.cpu_dai = &pxa_i2s_dai,
+	.codec_dai = &wm8731_dai,
+	.init = corgi_wm8731_init,
+	.ops = &corgi_ops,
+};
+
+struct snd_soc_machine then sets up the machine with it's DAI's. e.g.
+
+/* corgi audio machine driver */
+static struct snd_soc_machine snd_soc_machine_corgi = {
+	.name = "Corgi",
+	.dai_link = &corgi_dai,
+	.num_links = 1,
+};
+
+
+Machine Audio Subsystem
+-----------------------
+
+The machine soc device glues the platform, machine and codec driver together.
+Private data can also be set here. e.g.
+
+/* corgi audio private data */
+static struct wm8731_setup_data corgi_wm8731_setup = {
+	.i2c_address = 0x1b,
+};
+
+/* corgi audio subsystem */
+static struct snd_soc_device corgi_snd_devdata = {
+	.machine = &snd_soc_machine_corgi,
+	.platform = &pxa2xx_soc_platform,
+	.codec_dev = &soc_codec_dev_wm8731,
+	.codec_data = &corgi_wm8731_setup,
+};
+
+
+Machine Power Map
+-----------------
+
+The machine driver can optionally extend the codec power map and to become an
+audio power map of the audio subsystem. This allows for automatic power up/down
+of speaker/HP amplifiers, etc. Codec pins can be connected to the machines jack
+sockets in the machine init function. See soc/pxa/spitz.c and dapm.txt for
+details.
+
+
+Machine Controls
+----------------
+
+Machine specific audio mixer controls can be added in the dai init function.

Documentation/sound/alsa/soc/overview.txt

@@ -0,0 +1,83 @@
+ALSA SoC Layer
+==============
+
+The overall project goal of the ALSA System on Chip (ASoC) layer is to provide
+better ALSA support for embedded system on chip procesors (e.g. pxa2xx, au1x00,
+iMX, etc) and portable audio codecs. Currently there is some support in the
+kernel for SoC audio, however it has some limitations:-
+
+  * Currently, codec drivers are often tightly coupled to the underlying SoC
+    cpu. This is not ideal and leads to code duplication i.e. Linux now has 4
+    different wm8731 drivers for 4 different SoC platforms.
+
+  * There is no standard method to signal user initiated audio events.
+    e.g. Headphone/Mic insertion, Headphone/Mic detection after an insertion
+    event. These are quite common events on portable devices and ofter require
+    machine specific code to re route audio, enable amps etc after such an event.
+
+  * Current drivers tend to power up the entire codec when playing
+    (or recording) audio. This is fine for a PC, but tends to waste a lot of
+    power on portable devices. There is also no support for saving power via
+    changing codec oversampling rates, bias currents, etc.
+
+
+ASoC Design
+===========
+
+The ASoC layer is designed to address these issues and provide the following
+features :-
+
+  * Codec independence. Allows reuse of codec drivers on other platforms
+    and machines.
+
+  * Easy I2S/PCM audio interface setup between codec and SoC. Each SoC interface
+    and codec registers it's audio interface capabilities with the core and are
+    subsequently matched and configured when the application hw params are known.
+
+  * Dynamic Audio Power Management (DAPM). DAPM automatically sets the codec to
+    it's minimum power state at all times. This includes powering up/down
+    internal power blocks depending on the internal codec audio routing and any
+    active streams.
+
+  * Pop and click reduction. Pops and clicks can be reduced by powering the
+    codec up/down in the correct sequence (including using digital mute). ASoC
+    signals the codec when to change power states.
+
+  * Machine specific controls: Allow machines to add controls to the sound card
+    e.g. volume control for speaker amp.
+
+To achieve all this, ASoC basically splits an embedded audio system into 3
+components :-
+
+  * Codec driver: The codec driver is platform independent and contains audio
+    controls, audio interface capabilities, codec dapm definition and codec IO
+    functions.
+
+  * Platform driver: The platform driver contains the audio dma engine and audio
+    interface drivers (e.g. I2S, AC97, PCM) for that platform.
+
+  * Machine driver: The machine driver handles any machine specific controls and
+    audio events. i.e. turing on an amp at start of playback.
+
+
+Documentation
+=============
+
+The documentation is spilt into the following sections:-
+
+overview.txt: This file.
+
+codec.txt: Codec driver internals.
+
+DAI.txt: Description of Digital Audio Interface standards and how to configure
+a DAI within your codec and CPU DAI drivers.
+
+dapm.txt: Dynamic Audio Power Management
+
+platform.txt: Platform audio DMA and DAI.
+
+machine.txt: Machine driver internals.
+
+pop_clicks.txt: How to minimise audio artifacts.
+
+clocking.txt: ASoC clocking for best power performance.

Documentation/sound/alsa/soc/platform.txt

@@ -0,0 +1,58 @@
+ASoC Platform Driver
+====================
+
+An ASoC platform driver can be divided into audio DMA and SoC DAI configuration
+and control. The platform drivers only target the SoC CPU and must have no board
+specific code.
+
+Audio DMA
+=========
+
+The platform DMA driver optionally supports the following alsa operations:-
+
+/* SoC audio ops */
+struct snd_soc_ops {
+	int (*startup)(struct snd_pcm_substream *);
+	void (*shutdown)(struct snd_pcm_substream *);
+	int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
+	int (*hw_free)(struct snd_pcm_substream *);
+	int (*prepare)(struct snd_pcm_substream *);
+	int (*trigger)(struct snd_pcm_substream *, int);
+};
+
+The platform driver exports it's DMA functionailty via struct snd_soc_platform:-
+
+struct snd_soc_platform {
+	char *name;
+
+	int (*probe)(struct platform_device *pdev);
+	int (*remove)(struct platform_device *pdev);
+	int (*suspend)(struct platform_device *pdev, struct snd_soc_cpu_dai *cpu_dai);
+	int (*resume)(struct platform_device *pdev, struct snd_soc_cpu_dai *cpu_dai);
+
+	/* pcm creation and destruction */
+	int (*pcm_new)(struct snd_card *, struct snd_soc_codec_dai *, struct snd_pcm *);
+	void (*pcm_free)(struct snd_pcm *);
+
+	/* platform stream ops */
+	struct snd_pcm_ops *pcm_ops;
+};
+
+Please refer to the alsa driver documentation for details of audio DMA.
+http://www.alsa-project.org/~iwai/writing-an-alsa-driver/c436.htm
+
+An example DMA driver is soc/pxa/pxa2xx-pcm.c
+
+
+SoC DAI Drivers
+===============
+
+Each SoC DAI driver must provide the following features:-
+
+ 1) Digital audio interface (DAI) description
+ 2) Digital audio interface configuration
+ 3) PCM's description
+ 4) Sysclk configuration
+ 5) Suspend and resume (optional)
+
+Please see codec.txt for a description of items 1 - 4.

Documentation/sound/alsa/soc/pops_clicks.txt

@@ -0,0 +1,52 @@
+Audio Pops and Clicks
+=====================
+
+Pops and clicks are unwanted audio artifacts caused by the powering up and down
+of components within the audio subsystem. This is noticable on PC's when an
+audio module is either loaded or unloaded (at module load time the sound card is
+powered up and causes a popping noise on the speakers).
+
+Pops and clicks can be more frequent on portable systems with DAPM. This is
+because the components within the subsystem are being dynamically powered
+depending on the audio usage and this can subsequently cause a small pop or
+click every time a component power state is changed.
+
+
+Minimising Playback Pops and Clicks
+===================================
+
+Playback pops in portable audio subsystems cannot be completely eliminated atm,
+however future audio codec hardware will have better pop and click supression.
+Pops can be reduced within playback by powering the audio components in a
+specific order. This order is different for startup and shutdown and follows
+some basic rules:-
+
+ Startup Order :- DAC --> Mixers --> Output PGA --> Digital Unmute
+
+ Shutdown Order :- Digital Mute --> Output PGA --> Mixers --> DAC
+
+This assumes that the codec PCM output path from the DAC is via a mixer and then
+a PGA (programmable gain amplifier) before being output to the speakers.
+
+
+Minimising Capture Pops and Clicks
+==================================
+
+Capture artifacts are somewhat easier to get rid as we can delay activating the
+ADC until all the pops have occured. This follows similar power rules to
+playback in that components are powered in a sequence depending upon stream
+startup or shutdown.
+
+ Startup Order - Input PGA --> Mixers --> ADC
+
+ Shutdown Order - ADC --> Mixers --> Input PGA
+
+
+Zipper Noise
+============
+An unwanted zipper noise can occur within the audio playback or capture stream
+when a volume control is changed near its maximum gain value. The zipper noise
+is heard when the gain increase or decrease changes the mean audio signal
+amplitude too quickly. It can be minimised by enabling the zero cross setting
+for each volume control. The ZC forces the gain change to occur when the signal
+crosses the zero amplitude line.

Documentation/spi/spi-summary

@@ -284,7 +284,6 @@ SPI protocol drivers somewhat resemble platform device drivers:
 	static struct spi_driver CHIP_driver = {
 		.driver = {
 			.name		= "CHIP",
-			.bus		= &spi_bus_type,
 			.owner		= THIS_MODULE,
 		},
 
@@ -312,7 +311,7 @@ might look like this unless you're creating a class_device:
 		chip = kzalloc(sizeof *chip, GFP_KERNEL);
 		if (!chip)
 			return -ENOMEM;
-		dev_set_drvdata(&spi->dev, chip);
+		spi_set_drvdata(spi, chip);
 
 		... etc
 		return 0;

Documentation/sysrq.txt

@@ -64,11 +64,6 @@ On all -  write a character to /proc/sysrq-trigger.  e.g.:
 
 *  What are the 'command' keys?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-'r'     - Turns off keyboard raw mode and sets it to XLATE.
-
-'k'     - Secure Access Key (SAK) Kills all programs on the current virtual
-          console. NOTE: See important comments below in SAK section.
-
 'b'     - Will immediately reboot the system without syncing or unmounting
           your disks.
 
@@ -76,21 +71,37 @@ On all -  write a character to /proc/sysrq-trigger.  e.g.:
 
 'd'	- Shows all locks that are held.
 
-'o'     - Will shut your system off (if configured and supported).
+'e'     - Send a SIGTERM to all processes, except for init.
 
-'s'     - Will attempt to sync all mounted filesystems.
+'f'	- Will call oom_kill to kill a memory hog process.
 
-'u'     - Will attempt to remount all mounted filesystems read-only.
+'g'	- Used by kgdb on ppc platforms.
 
-'p'     - Will dump the current registers and flags to your console.
+'h'     - Will display help (actually any other key than those listed
+          above will display help. but 'h' is easy to remember :-)
 
-'t'     - Will dump a list of current tasks and their information to your
-          console.
+'i'     - Send a SIGKILL to all processes, except for init.
+
+'k'     - Secure Access Key (SAK) Kills all programs on the current virtual
+          console. NOTE: See important comments below in SAK section.
 
 'm'     - Will dump current memory info to your console.
 
 'n'	- Used to make RT tasks nice-able
 
+'o'     - Will shut your system off (if configured and supported).
+
+'p'     - Will dump the current registers and flags to your console.
+
+'r'     - Turns off keyboard raw mode and sets it to XLATE.
+
+'s'     - Will attempt to sync all mounted filesystems.
+
+'t'     - Will dump a list of current tasks and their information to your
+          console.
+
+'u'     - Will attempt to remount all mounted filesystems read-only.
+
 'v'	- Dumps Voyager SMP processor info to your console.
 
 'w'	- Dumps tasks that are in uninterruptable (blocked) state.
@@ -102,17 +113,6 @@ On all -  write a character to /proc/sysrq-trigger.  e.g.:
           it so that only emergency messages like PANICs or OOPSes would
           make it to your console.)
 
-'f'	- Will call oom_kill to kill a memory hog process.
-
-'e'     - Send a SIGTERM to all processes, except for init.
-
-'g'	- Used by kgdb on ppc platforms.
-
-'i'     - Send a SIGKILL to all processes, except for init.
-
-'h'     - Will display help (actually any other key than those listed
-          above will display help. but 'h' is easy to remember :-)
-
 *  Okay, so what can I use them for?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Well, un'R'aw is very handy when your X server or a svgalib program crashes.

MAINTAINERS

@@ -635,6 +635,12 @@ W:	http://people.redhat.com/sgrubb/audit/
 T:	git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git
 S:	Maintained
 
+AUXILIARY DISPLAY DRIVERS
+P:	Miguel Ojeda Sandonis
+M:	maxextreme@gmail.com
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+
 AVR32 ARCHITECTURE
 P:	Haavard Skinnemoen
 M:	hskinnemoen@atmel.com
@@ -836,6 +842,18 @@ L:	linux-kernel@vger.kernel.org
 L:	discuss@x86-64.org
 S:	Maintained
 
+CFAG12864B LCD DRIVER
+P:	Miguel Ojeda Sandonis
+M:	maxextreme@gmail.com
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+
+CFAG12864BFB LCD FRAMEBUFFER DRIVER
+P:	Miguel Ojeda Sandonis
+M:	maxextreme@gmail.com
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+
 COMMON INTERNET FILE SYSTEM (CIFS)
 P:	Steve French
 M:	sfrench@samba.org
@@ -984,14 +1002,12 @@ L:	cycsyn-devel@bazar.conectiva.com.br
 S:	Maintained
 
 CYCLADES ASYNC MUX DRIVER
-M:	async@cyclades.com
 W:	http://www.cyclades.com/
-S:	Supported
+S:	Orphan
 
 CYCLADES PC300 DRIVER
-M:	pc300@cyclades.com
 W:	http://www.cyclades.com/
-S:	Supported
+S:	Orphan
 
 DAMA SLAVE for AX.25
 P:	Joerg Reuter
@@ -1114,7 +1130,7 @@ S:	Supported
 DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
 P:	Tobias Ringstrom
 M:	tori@unhappy.mine.nu
-L:	linux-kernel@vger.kernel.org
+L:	netdev@vger.kernel.org
 S:	Maintained
 
 DOCBOOK FOR DOCUMENTATION
@@ -1971,6 +1987,12 @@ M:	davem@davemloft.net
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 
+KS0108 LCD CONTROLLER DRIVER
+P:	Miguel Ojeda Sandonis
+M:	maxextreme@gmail.com
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+
 LAPB module
 L:	linux-x25@vger.kernel.org
 S:	Orphan
@@ -2361,7 +2383,7 @@ S:	Maintained
 NETWORKING [WIRELESS]
 P:	John W. Linville
 M:	linville@tuxdriver.com
-L:	netdev@vger.kernel.org
+L:	linux-wireless@vger.kernel.org
 T:	git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
 S:	Maintained
 
@@ -3037,6 +3059,12 @@ M:	perex@suse.cz
 L:	alsa-devel@alsa-project.org
 S:	Maintained
 
+SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT
+P:	Liam Girdwood
+M:	liam.girdwood@wolfsonmicro.com
+L:	alsa-devel@alsa-project.org
+S:	Supported
+
 SPI SUBSYSTEM
 P:	David Brownell
 M:	dbrownell@users.sourceforge.net
@@ -3287,6 +3315,11 @@ L:	vtun@office.satix.net
 W:	http://vtun.sourceforge.net/tun
 S:	Maintained
 
+TURBOCHANNEL SUBSYSTEM
+P:	Maciej W. Rozycki
+M:	macro@linux-mips.org
+S:	Maintained
+
 U14-34F SCSI DRIVER
 P:	Dario Ballabio
 M:	ballabio_dario@emc.com

Makefile

@@ -789,7 +789,7 @@ $(vmlinux-dirs): prepare scripts
 
 pattern = ".*/localversion[^~]*"
 string  = $(shell cat /dev/null \
-	   `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort`)
+	   `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
 
 localver = $(subst $(space),, $(string) \
 			      $(patsubst "%",%,$(CONFIG_LOCALVERSION)))

arch/alpha/Kconfig

@@ -41,6 +41,10 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
+config ZONE_DMA
+	bool
+	default y
+
 config GENERIC_ISA_DMA
 	bool
 	default y

arch/alpha/kernel/setup.c

@@ -122,7 +122,7 @@ static void get_sysnames(unsigned long, unsigned long, unsigned long,
 			 char **, char **);
 static void determine_cpu_caches (unsigned int);
 
-static char command_line[COMMAND_LINE_SIZE];
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 /*
  * The format of "screen_info" is strange, and due to early
@@ -547,7 +547,7 @@ setup_arch(char **cmdline_p)
 	} else {
 		strlcpy(command_line, COMMAND_LINE, sizeof command_line);
 	}
-	strcpy(saved_command_line, command_line);
+	strcpy(boot_command_line, command_line);
 	*cmdline_p = command_line;
 
 	/* 
@@ -589,7 +589,7 @@ setup_arch(char **cmdline_p)
 	}
 
 	/* Replace the command line, now that we've killed it with strsep.  */
-	strcpy(command_line, saved_command_line);
+	strcpy(command_line, boot_command_line);
 
 	/* If we want SRM console printk echoing early, do it now. */
 	if (alpha_using_srm && srmcons_output) {

arch/alpha/kernel/time.c

@@ -90,17 +90,6 @@ static inline __u32 rpcc(void)
     return result;
 }
 
-/*
- * Scheduler clock - returns current time in nanosec units.
- *
- * Copied from ARM code for expediency... ;-}
- */
-unsigned long long sched_clock(void)
-{
-        return (unsigned long long)jiffies * (1000000000 / HZ);
-}
-
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick

arch/alpha/kernel/vmlinux.lds.S

@@ -52,10 +52,12 @@ SECTIONS
   }
   __initcall_end = .;
 
+#ifdef CONFIG_BLK_DEV_INITRD
   . = ALIGN(8192);
   __initramfs_start = .;
   .init.ramfs : { *(.init.ramfs) }
   __initramfs_end = .;
+#endif
 
   . = ALIGN(8);
   .con_initcall.init : {

arch/arm/Kconfig

@@ -9,6 +9,7 @@ config ARM
 	bool
 	default y
 	select RTC_LIB
+	select SYS_SUPPORTS_APM_EMULATION
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
 	  licensed by ARM Ltd and targeted at embedded applications and
@@ -17,6 +18,9 @@ config ARM
 	  Europe.  There is an ARM Linux project with a web page at
 	  <http://www.arm.linux.org.uk/>.
 
+config SYS_SUPPORTS_APM_EMULATION
+	bool
+
 config GENERIC_TIME
 	bool
 	default n
@@ -25,6 +29,10 @@ config MMU
 	bool
 	default y
 
+config NO_IOPORT
+	bool
+	default n
+
 config EISA
 	bool
 	---help---
@@ -96,6 +104,10 @@ config GENERIC_BUST_SPINLOCK
 config ARCH_MAY_HAVE_PC_FDC
 	bool
 
+config ZONE_DMA
+	bool
+	default y
+
 config GENERIC_ISA_DMA
 	bool
 
@@ -290,6 +302,7 @@ config ARCH_RPC
 	select TIMER_ACORN
 	select ARCH_MAY_HAVE_PC_FDC
 	select ISA_DMA_API
+	select NO_IOPORT
 	help
 	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
 	  CD-ROM interface, serial and parallel port, and the floppy drive.
@@ -856,31 +869,6 @@ menu "Power management options"
 
 source "kernel/power/Kconfig"
 
-config APM
-	tristate "Advanced Power Management Emulation"
-	---help---
-	  APM is a BIOS specification for saving power using several different
-	  techniques. This is mostly useful for battery powered laptops with
-	  APM compliant BIOSes. If you say Y here, the system time will be
-	  reset after a RESUME operation, the /proc/apm device will provide
-	  battery status information, and user-space programs will receive
-	  notification of APM "events" (e.g. battery status change).
-
-	  In order to use APM, you will need supporting software. For location
-	  and more information, read <file:Documentation/pm.txt> and the
-	  Battery Powered Linux mini-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
-
-	  This driver does not spin down disk drives (see the hdparm(8)
-	  manpage ("man 8 hdparm") for that), and it doesn't turn off
-	  VESA-compliant "green" monitors.
-
-	  Generally, if you don't have a battery in your machine, there isn't
-	  much point in using this driver and you should say N. If you get
-	  random kernel OOPSes or reboots that don't seem to be related to
-	  anything, try disabling/enabling this option (or disabling/enabling
-	  APM in your BIOS).
-
 endmenu
 
 source "net/Kconfig"

arch/arm/common/rtctime.c

@@ -329,7 +329,7 @@ static int rtc_fasync(int fd, struct file *file, int on)
 	return fasync_helper(fd, file, on, &rtc_async_queue);
 }
 
-static struct file_operations rtc_fops = {
+static const struct file_operations rtc_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.read		= rtc_read,

arch/arm/common/sharpsl_pm.c

@@ -27,7 +27,7 @@
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/irq.h>
-#include <asm/apm.h>
+#include <asm/apm-emulation.h>
 #include <asm/arch/pm.h>
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/sharpsl.h>

arch/arm/kernel/Makefile

@@ -10,7 +10,6 @@ obj-y		:= compat.o entry-armv.o entry-common.o irq.o \
 		   process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \
 		   time.o traps.o
 
-obj-$(CONFIG_APM)		+= apm.o
 obj-$(CONFIG_ISA_DMA_API)	+= dma.o
 obj-$(CONFIG_ARCH_ACORN)	+= ecard.o 
 obj-$(CONFIG_FIQ)		+= fiq.o

arch/arm/kernel/setup.c

@@ -106,7 +106,7 @@ unsigned long phys_initrd_size __initdata = 0;
 static struct meminfo meminfo __initdata = { 0, };
 static const char *cpu_name;
 static const char *machine_name;
-static char command_line[COMMAND_LINE_SIZE];
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } };
@@ -803,8 +803,8 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data   = (unsigned long) &_edata;
 	init_mm.brk	   = (unsigned long) &_end;
 
-	memcpy(saved_command_line, from, COMMAND_LINE_SIZE);
-	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
+	memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
+	boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
 	parse_cmdline(cmdline_p, from);
 	paging_init(&meminfo, mdesc);
 	request_standard_resources(&meminfo, mdesc);

arch/arm/kernel/time.c

@@ -77,16 +77,6 @@ static unsigned long dummy_gettimeoffset(void)
 }
 #endif
 
-/*
- * Scheduler clock - returns current time in nanosec units.
- * This is the default implementation.  Sub-architecture
- * implementations can override this.
- */
-unsigned long long __attribute__((weak)) sched_clock(void)
-{
-	return (unsigned long long)jiffies * (1000000000 / HZ);
-}
-
 /*
  * An implementation of printk_clock() independent from
  * sched_clock().  This avoids non-bootable kernels when

arch/arm/kernel/vmlinux.lds.S

@@ -53,10 +53,12 @@ SECTIONS
 		__security_initcall_start = .;
 			*(.security_initcall.init)
 		__security_initcall_end = .;
+#ifdef CONFIG_BLK_DEV_INITRD
 		. = ALIGN(32);
 		__initramfs_start = .;
 			usr/built-in.o(.init.ramfs)
 		__initramfs_end = .;
+#endif
 		. = ALIGN(64);
 		__per_cpu_start = .;
 			*(.data.percpu)

arch/arm/mach-at91rm9200/clock.c

@@ -407,7 +407,7 @@ static int at91_clk_open(struct inode *inode, struct file *file)
 	return single_open(file, at91_clk_show, NULL);
 }
 
-static struct file_operations at91_clk_operations = {
+static const struct file_operations at91_clk_operations = {
 	.open		= at91_clk_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,

arch/arm/mach-at91rm9200/gpio.c

@@ -64,6 +64,24 @@ static inline unsigned pin_to_mask(unsigned pin)
  */
 
 
+/*
+ * mux the pin to the "GPIO" peripheral role.
+ */
+int __init_or_module at91_set_GPIO_periph(unsigned pin, int use_pullup)
+{
+	void __iomem	*pio = pin_to_controller(pin);
+	unsigned	mask = pin_to_mask(pin);
+
+	if (!pio)
+		return -EINVAL;
+	__raw_writel(mask, pio + PIO_IDR);
+	__raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR));
+	__raw_writel(mask, pio + PIO_PER);
+	return 0;
+}
+EXPORT_SYMBOL(at91_set_GPIO_periph);
+
+
 /*
  * mux the pin to the "A" internal peripheral role.
  */
@@ -181,6 +199,36 @@ EXPORT_SYMBOL(at91_set_multi_drive);
 
 /*--------------------------------------------------------------------------*/
 
+/* new-style GPIO calls; these expect at91_set_GPIO_periph to have been
+ * called, and maybe at91_set_multi_drive() for putout pins.
+ */
+
+int gpio_direction_input(unsigned pin)
+{
+	void __iomem	*pio = pin_to_controller(pin);
+	unsigned	mask = pin_to_mask(pin);
+
+	if (!pio || !(__raw_readl(pio + PIO_PSR) & mask))
+		return -EINVAL;
+	__raw_writel(mask, pio + PIO_OER);
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+int gpio_direction_output(unsigned pin)
+{
+	void __iomem	*pio = pin_to_controller(pin);
+	unsigned	mask = pin_to_mask(pin);
+
+	if (!pio || !(__raw_readl(pio + PIO_PSR) & mask))
+		return -EINVAL;
+	__raw_writel(mask, pio + PIO_OER);
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_output);
+
+/*--------------------------------------------------------------------------*/
+
 /*
  * assuming the pin is muxed as a gpio output, set its value.
  */

arch/arm/mach-pxa/corgi_pm.c

@@ -16,7 +16,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <asm/apm.h>
+#include <asm/apm-emulation.h>
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 #include <asm/hardware.h>

arch/arm/mach-pxa/sharpsl_pm.c

@@ -23,7 +23,7 @@
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
-#include <asm/apm.h>
+#include <asm/apm-emulation.h>
 #include <asm/arch/pm.h>
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/sharpsl.h>

arch/arm/mach-pxa/spitz_pm.c

@@ -16,7 +16,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <asm/apm.h>
+#include <asm/apm-emulation.h>
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 #include <asm/hardware.h>

arch/arm26/Kconfig

@@ -60,6 +60,10 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_BUST_SPINLOCK
 	bool
 
+config ZONE_DMA
+	bool
+	default y
+
 config GENERIC_ISA_DMA
 	bool
 

arch/arm26/kernel/ecard.c

@@ -665,7 +665,7 @@ ecard_probe(int slot, card_type_t type)
 		ec->fiqmask = 4;
 	}
 
-	for (i = 0; i < sizeof(blacklist) / sizeof(*blacklist); i++)
+	for (i = 0; i < ARRAY_SIZE(blacklist); i++)
 		if (blacklist[i].manufacturer == ec->cid.manufacturer &&
 		    blacklist[i].product == ec->cid.product) {
 			ec->card_desc = blacklist[i].type;

arch/arm26/kernel/setup.c

@@ -80,7 +80,7 @@ unsigned long phys_initrd_size __initdata = 0;
 static struct meminfo meminfo __initdata = { 0, };
 static struct proc_info_item proc_info;
 static const char *machine_name;
-static char command_line[COMMAND_LINE_SIZE];
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
@@ -492,8 +492,8 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data   = (unsigned long) &_edata;
 	init_mm.brk	   = (unsigned long) &_end;
 
-	memcpy(saved_command_line, from, COMMAND_LINE_SIZE);
-	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
+	memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
+	boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
 	parse_cmdline(&meminfo, cmdline_p, from);
 	bootmem_init(&meminfo);
 	paging_init(&meminfo);

arch/arm26/kernel/time.c

@@ -89,14 +89,6 @@ static unsigned long gettimeoffset(void)
         return (offset + LATCH/2) / LATCH;
 }
 
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
-	return (unsigned long long)jiffies * (1000000000 / HZ);
-}
-
 static unsigned long next_rtc_update;
 
 /*

arch/arm26/kernel/vmlinux-arm26-xip.lds.in

@@ -46,10 +46,12 @@ SECTIONS
 		__con_initcall_start = .;
 			*(.con_initcall.init)
 		__con_initcall_end = .;
+#ifdef CONFIG_BLK_DEV_INITRD
 		. = ALIGN(32);
 		__initramfs_start = .;
 			usr/built-in.o(.init.ramfs)
 		__initramfs_end = .;
+#endif
 		. = ALIGN(32768);
 		__init_end = .;
 	}

arch/arm26/kernel/vmlinux-arm26.lds.in

@@ -47,10 +47,12 @@ SECTIONS
 		__con_initcall_start = .;
 			*(.con_initcall.init)
 		__con_initcall_end = .;
+#ifdef CONFIG_BLK_DEV_INITRD
 		. = ALIGN(32);
 		__initramfs_start = .;
 			usr/built-in.o(.init.ramfs)
 		__initramfs_end = .;
+#endif
 		. = ALIGN(32768);
 		__init_end = .;
 	}

arch/avr32/boards/atstk1000/Makefile

@@ -1,2 +1,2 @@
-obj-y				+= setup.o spi.o flash.o
+obj-y				+= setup.o flash.o
 obj-$(CONFIG_BOARD_ATSTK1002)	+= atstk1002.o

arch/avr32/boards/atstk1000/atstk1002.c

@@ -8,17 +8,24 @@
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
+#include <linux/device.h>
 #include <linux/etherdevice.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/spi/spi.h>
 
 #include <asm/io.h>
 #include <asm/setup.h>
+#include <asm/arch/at32ap7000.h>
 #include <asm/arch/board.h>
 #include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
+
+
+#define	SW2_DEFAULT		/* MMCI and UART_A available */
 
 struct eth_addr {
 	u8 addr[6];
@@ -29,6 +36,16 @@ static struct eth_addr __initdata hw_addr[2];
 static struct eth_platform_data __initdata eth_data[2];
 extern struct lcdc_platform_data atstk1000_fb0_data;
 
+static struct spi_board_info spi_board_info[] __initdata = {
+	{
+		.modalias	= "ltv350qv",
+		.controller_data = (void *)GPIO_PIN_PA(4),
+		.max_speed_hz	= 16000000,
+		.bus_num	= 0,
+		.chip_select	= 1,
+	},
+};
+
 /*
  * The next two functions should go away as the boot loader is
  * supposed to initialize the macb address registers with a valid
@@ -86,23 +103,53 @@ static void __init set_hw_addr(struct platform_device *pdev)
 
 void __init setup_board(void)
 {
-	at32_map_usart(1, 0);	/* /dev/ttyS0 */
-	at32_map_usart(2, 1);	/* /dev/ttyS1 */
-	at32_map_usart(3, 2);	/* /dev/ttyS2 */
+#ifdef	SW2_DEFAULT
+	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#else
+	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2);	/* USART 3/C: /dev/ttyS2, DB9 */
 
 	at32_setup_serial_console(0);
 }
 
 static int __init atstk1002_init(void)
 {
+	/*
+	 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
+	 * SDRAM-specific pins so that nobody messes with them.
+	 */
+	at32_reserve_pin(GPIO_PIN_PE(0));	/* DATA[16]	*/
+	at32_reserve_pin(GPIO_PIN_PE(1));	/* DATA[17]	*/
+	at32_reserve_pin(GPIO_PIN_PE(2));	/* DATA[18]	*/
+	at32_reserve_pin(GPIO_PIN_PE(3));	/* DATA[19]	*/
+	at32_reserve_pin(GPIO_PIN_PE(4));	/* DATA[20]	*/
+	at32_reserve_pin(GPIO_PIN_PE(5));	/* DATA[21]	*/
+	at32_reserve_pin(GPIO_PIN_PE(6));	/* DATA[22]	*/
+	at32_reserve_pin(GPIO_PIN_PE(7));	/* DATA[23]	*/
+	at32_reserve_pin(GPIO_PIN_PE(8));	/* DATA[24]	*/
+	at32_reserve_pin(GPIO_PIN_PE(9));	/* DATA[25]	*/
+	at32_reserve_pin(GPIO_PIN_PE(10));	/* DATA[26]	*/
+	at32_reserve_pin(GPIO_PIN_PE(11));	/* DATA[27]	*/
+	at32_reserve_pin(GPIO_PIN_PE(12));	/* DATA[28]	*/
+	at32_reserve_pin(GPIO_PIN_PE(13));	/* DATA[29]	*/
+	at32_reserve_pin(GPIO_PIN_PE(14));	/* DATA[30]	*/
+	at32_reserve_pin(GPIO_PIN_PE(15));	/* DATA[31]	*/
+	at32_reserve_pin(GPIO_PIN_PE(26));	/* SDCS		*/
+
 	at32_add_system_devices();
 
+#ifdef	SW2_DEFAULT
 	at32_add_device_usart(0);
+#else
 	at32_add_device_usart(1);
+#endif
 	at32_add_device_usart(2);
 
 	set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
 
+	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
 	at32_add_device_spi(0);
 	at32_add_device_lcdc(0, &atstk1000_fb0_data);
 

arch/avr32/boards/atstk1000/spi.c

@@ -1,27 +0,0 @@
-/*
- * ATSTK1000 SPI devices
- *
- * Copyright (C) 2005 Atmel Norway
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-
-static struct spi_board_info spi_board_info[] __initdata = {
-	{
-		.modalias	= "ltv350qv",
-		.max_speed_hz	= 16000000,
-		.bus_num	= 0,
-		.chip_select	= 1,
-	},
-};
-
-static int board_init_spi(void)
-{
-	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
-	return 0;
-}
-arch_initcall(board_init_spi);

arch/avr32/kernel/cpu.c

@@ -9,6 +9,7 @@
 #include <linux/sysdev.h>
 #include <linux/seq_file.h>
 #include <linux/cpu.h>
+#include <linux/module.h>
 #include <linux/percpu.h>
 #include <linux/param.h>
 #include <linux/errno.h>

arch/avr32/kernel/irq.c

@@ -57,6 +57,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%3d: ", i);
 		for_each_online_cpu(cpu)
 			seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]);
+		seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-");
 		seq_printf(p, "  %s", action->name);
 		for (action = action->next; action; action = action->next)
 			seq_printf(p, ", %s", action->name);

arch/avr32/kernel/setup.c

@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/root_dev.h>
 #include <linux/cpu.h>
+#include <linux/kernel.h>
 
 #include <asm/sections.h>
 #include <asm/processor.h>
@@ -44,7 +45,7 @@ struct avr32_cpuinfo boot_cpu_data = {
 };
 EXPORT_SYMBOL(boot_cpu_data);
 
-static char command_line[COMMAND_LINE_SIZE];
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 /*
  * Should be more than enough, but if you have a _really_ complex
@@ -174,8 +175,7 @@ static int __init parse_tag_mem_range(struct tag *tag,
 	 * Copy the data so the bootmem init code doesn't need to care
 	 * about it.
 	 */
-	if (mem_range_next_free >=
-	    (sizeof(mem_range_cache) / sizeof(mem_range_cache[0])))
+	if (mem_range_next_free >= ARRAY_SIZE(mem_range_cache))
 		panic("Physical memory map too complex!\n");
 
 	new = &mem_range_cache[mem_range_next_free++];
@@ -202,7 +202,7 @@ __tagtable(ATAG_MEM, parse_tag_mem);
 
 static int __init parse_tag_cmdline(struct tag *tag)
 {
-	strlcpy(saved_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
+	strlcpy(boot_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
 	return 0;
 }
 __tagtable(ATAG_CMDLINE, parse_tag_cmdline);
@@ -294,7 +294,7 @@ void __init setup_arch (char **cmdline_p)
 	init_mm.end_data = (unsigned long) &_edata;
 	init_mm.brk = (unsigned long) &_end;
 
-	strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE);
+	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 	*cmdline_p = command_line;
 	parse_early_param();
 

arch/avr32/kernel/time.c

@@ -109,15 +109,6 @@ static void avr32_hpt_init(unsigned int count)
 	sysreg_write(COUNT, count);
 }
 
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
-	/* There must be better ways...? */
-	return (unsigned long long)jiffies * (1000000000 / HZ);
-}
-
 /*
  * local_timer_interrupt() does profiling and process accounting on a
  * per-CPU basis.

arch/avr32/kernel/vmlinux.lds.c

@@ -46,10 +46,12 @@ SECTIONS
 		__security_initcall_start = .;
 			*(.security_initcall.init)
 		__security_initcall_end = .;
+#ifdef CONFIG_BLK_DEV_INITRD
 		. = ALIGN(32);
 		__initramfs_start = .;
 			*(.init.ramfs)
 		__initramfs_end = .;
+#endif
 		. = ALIGN(4096);
 		__init_end = .;
 	}

arch/avr32/lib/libgcc.h

@@ -1,33 +0,0 @@
-/* Definitions for various functions 'borrowed' from gcc-3.4.3 */
-
-#define BITS_PER_UNIT	8
-
-typedef		 int QItype	__attribute__ ((mode (QI)));
-typedef unsigned int UQItype	__attribute__ ((mode (QI)));
-typedef		 int HItype	__attribute__ ((mode (HI)));
-typedef unsigned int UHItype	__attribute__ ((mode (HI)));
-typedef 	 int SItype	__attribute__ ((mode (SI)));
-typedef unsigned int USItype	__attribute__ ((mode (SI)));
-typedef		 int DItype	__attribute__ ((mode (DI)));
-typedef unsigned int UDItype	__attribute__ ((mode (DI)));
-typedef 	float SFtype	__attribute__ ((mode (SF)));
-typedef		float DFtype	__attribute__ ((mode (DF)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
-#define Wtype	SItype
-#define UWtype	USItype
-#define HWtype	SItype
-#define UHWtype	USItype
-#define DWtype	DItype
-#define UDWtype	UDItype
-#define __NW(a,b)	__ ## a ## si ## b
-#define __NDW(a,b)	__ ## a ## di ## b
-
-struct DWstruct {Wtype high, low;};
-
-typedef union
-{
-  struct DWstruct s;
-  DWtype ll;
-} DWunion;

arch/avr32/lib/longlong.h

@@ -1,98 +0,0 @@
-/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
-   Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
-   Free Software Foundation, Inc.
-
-   This definition file is free software; you can redistribute it
-   and/or modify it under the terms of the GNU General Public
-   License as published by the Free Software Foundation; either
-   version 2, or (at your option) any later version.
-
-   This definition file is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied
-   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-   See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-/* Borrowed from gcc-3.4.3 */
-
-#define __BITS4 (W_TYPE_SIZE / 4)
-#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
-#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
-#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
-
-#define count_leading_zeros(count, x) ((count) = __builtin_clz(x))
-
-#define __udiv_qrnnd_c(q, r, n1, n0, d) \
-  do {									\
-    UWtype __d1, __d0, __q1, __q0;					\
-    UWtype __r1, __r0, __m;						\
-    __d1 = __ll_highpart (d);						\
-    __d0 = __ll_lowpart (d);						\
-									\
-    __r1 = (n1) % __d1;							\
-    __q1 = (n1) / __d1;							\
-    __m = (UWtype) __q1 * __d0;						\
-    __r1 = __r1 * __ll_B | __ll_highpart (n0);				\
-    if (__r1 < __m)							\
-      {									\
-	__q1--, __r1 += (d);						\
-	if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
-	  if (__r1 < __m)						\
-	    __q1--, __r1 += (d);					\
-      }									\
-    __r1 -= __m;							\
-									\
-    __r0 = __r1 % __d1;							\
-    __q0 = __r1 / __d1;							\
-    __m = (UWtype) __q0 * __d0;						\
-    __r0 = __r0 * __ll_B | __ll_lowpart (n0);				\
-    if (__r0 < __m)							\
-      {									\
-	__q0--, __r0 += (d);						\
-	if (__r0 >= (d))						\
-	  if (__r0 < __m)						\
-	    __q0--, __r0 += (d);					\
-      }									\
-    __r0 -= __m;							\
-									\
-    (q) = (UWtype) __q1 * __ll_B | __q0;				\
-    (r) = __r0;								\
-  } while (0)
-
-#define udiv_qrnnd __udiv_qrnnd_c
-
-#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
-  do {									\
-    UWtype __x;								\
-    __x = (al) - (bl);							\
-    (sh) = (ah) - (bh) - (__x > (al));					\
-    (sl) = __x;								\
-  } while (0)
-
-#define umul_ppmm(w1, w0, u, v)						\
-  do {									\
-    UWtype __x0, __x1, __x2, __x3;					\
-    UHWtype __ul, __vl, __uh, __vh;					\
-									\
-    __ul = __ll_lowpart (u);						\
-    __uh = __ll_highpart (u);						\
-    __vl = __ll_lowpart (v);						\
-    __vh = __ll_highpart (v);						\
-									\
-    __x0 = (UWtype) __ul * __vl;					\
-    __x1 = (UWtype) __ul * __vh;					\
-    __x2 = (UWtype) __uh * __vl;					\
-    __x3 = (UWtype) __uh * __vh;					\
-									\
-    __x1 += __ll_highpart (__x0);/* this can't give carry */		\
-    __x1 += __x2;		/* but this indeed can */		\
-    if (__x1 < __x2)		/* did we get it? */			\
-      __x3 += __ll_B;		/* yes, add it in the proper pos.  */	\
-									\
-    (w1) = __x3 + __ll_highpart (__x1);					\
-    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);		\
-  } while (0)

arch/avr32/mach-at32ap/Makefile

@@ -1,2 +1,2 @@
-obj-y				+= at32ap.o clock.o pio.o intc.o extint.o hsmc.o
+obj-y				+= at32ap.o clock.o intc.o extint.o pio.o hsmc.o
 obj-$(CONFIG_CPU_AT32AP7000)	+= at32ap7000.o

arch/avr32/mach-at32ap/at32ap7000.c

@@ -496,9 +496,16 @@ static struct resource pio3_resource[] = {
 DEFINE_DEV(pio, 3);
 DEV_CLK(mck, pio3, pba, 13);
 
+static struct resource pio4_resource[] = {
+	PBMEM(0xffe03800),
+	IRQ(17),
+};
+DEFINE_DEV(pio, 4);
+DEV_CLK(mck, pio4, pba, 14);
+
 void __init at32_add_system_devices(void)
 {
-	system_manager.eim_first_irq = NR_INTERNAL_IRQS;
+	system_manager.eim_first_irq = EIM_IRQ_BASE;
 
 	platform_device_register(&at32_sm_device);
 	platform_device_register(&at32_intc0_device);
@@ -509,6 +516,7 @@ void __init at32_add_system_devices(void)
 	platform_device_register(&pio1_device);
 	platform_device_register(&pio2_device);
 	platform_device_register(&pio3_device);
+	platform_device_register(&pio4_device);
 }
 
 /* --------------------------------------------------------------------
@@ -521,7 +529,7 @@ static struct atmel_uart_data atmel_usart0_data = {
 };
 static struct resource atmel_usart0_resource[] = {
 	PBMEM(0xffe00c00),
-	IRQ(7),
+	IRQ(6),
 };
 DEFINE_DEV_DATA(atmel_usart, 0);
 DEV_CLK(usart, atmel_usart0, pba, 4);
@@ -583,7 +591,7 @@ static inline void configure_usart3_pins(void)
 	select_peripheral(PB(17), PERIPH_B, 0);	/* TXD	*/
 }
 
-static struct platform_device *at32_usarts[4];
+static struct platform_device *__initdata at32_usarts[4];
 
 void __init at32_map_usart(unsigned int hw_id, unsigned int line)
 {
@@ -728,12 +736,19 @@ at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
 /* --------------------------------------------------------------------
  *  SPI
  * -------------------------------------------------------------------- */
-static struct resource spi0_resource[] = {
+static struct resource atmel_spi0_resource[] = {
 	PBMEM(0xffe00000),
 	IRQ(3),
 };
-DEFINE_DEV(spi, 0);
-DEV_CLK(mck, spi0, pba, 0);
+DEFINE_DEV(atmel_spi, 0);
+DEV_CLK(spi_clk, atmel_spi0, pba, 0);
+
+static struct resource atmel_spi1_resource[] = {
+	PBMEM(0xffe00400),
+	IRQ(4),
+};
+DEFINE_DEV(atmel_spi, 1);
+DEV_CLK(spi_clk, atmel_spi1, pba, 1);
 
 struct platform_device *__init at32_add_device_spi(unsigned int id)
 {
@@ -741,13 +756,33 @@ struct platform_device *__init at32_add_device_spi(unsigned int id)
 
 	switch (id) {
 	case 0:
-		pdev = &spi0_device;
+		pdev = &atmel_spi0_device;
 		select_peripheral(PA(0),  PERIPH_A, 0);	/* MISO	 */
 		select_peripheral(PA(1),  PERIPH_A, 0);	/* MOSI	 */
 		select_peripheral(PA(2),  PERIPH_A, 0);	/* SCK	 */
-		select_peripheral(PA(3),  PERIPH_A, 0);	/* NPCS0 */
-		select_peripheral(PA(4),  PERIPH_A, 0);	/* NPCS1 */
-		select_peripheral(PA(5),  PERIPH_A, 0);	/* NPCS2 */
+
+		/* NPCS[2:0] */
+		at32_select_gpio(GPIO_PIN_PA(3),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+		at32_select_gpio(GPIO_PIN_PA(4),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+		at32_select_gpio(GPIO_PIN_PA(5),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+		break;
+
+	case 1:
+		pdev = &atmel_spi1_device;
+		select_peripheral(PB(0),  PERIPH_B, 0);	/* MISO  */
+		select_peripheral(PB(1),  PERIPH_B, 0);	/* MOSI  */
+		select_peripheral(PB(5),  PERIPH_B, 0);	/* SCK   */
+
+		/* NPCS[2:0] */
+		at32_select_gpio(GPIO_PIN_PB(2),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+		at32_select_gpio(GPIO_PIN_PB(3),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+		at32_select_gpio(GPIO_PIN_PB(4),
+				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
 		break;
 
 	default:
@@ -860,6 +895,7 @@ struct clk *at32_clock_list[] = {
 	&pio1_mck,
 	&pio2_mck,
 	&pio3_mck,
+	&pio4_mck,
 	&atmel_usart0_usart,
 	&atmel_usart1_usart,
 	&atmel_usart2_usart,
@@ -868,7 +904,8 @@ struct clk *at32_clock_list[] = {
 	&macb0_pclk,
 	&macb1_hclk,
 	&macb1_pclk,
-	&spi0_mck,
+	&atmel_spi0_spi_clk,
+	&atmel_spi1_spi_clk,
 	&lcdc0_hclk,
 	&lcdc0_pixclk,
 };
@@ -880,6 +917,7 @@ void __init at32_portmux_init(void)
 	at32_init_pio(&pio1_device);
 	at32_init_pio(&pio2_device);
 	at32_init_pio(&pio3_device);
+	at32_init_pio(&pio4_device);
 }
 
 void __init at32_clock_init(void)

arch/avr32/mach-at32ap/extint.c

@@ -55,20 +55,11 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
 	unsigned long flags;
 	int ret = 0;
 
+	flow_type &= IRQ_TYPE_SENSE_MASK;
 	if (flow_type == IRQ_TYPE_NONE)
 		flow_type = IRQ_TYPE_LEVEL_LOW;
 
 	desc = &irq_desc[irq];
-	desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
-	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
-
-	if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
-		desc->status |= IRQ_LEVEL;
-		set_irq_handler(irq, handle_level_irq);
-	} else {
-		set_irq_handler(irq, handle_edge_irq);
-	}
-
 	spin_lock_irqsave(&sm->lock, flags);
 
 	mode = sm_readl(sm, EIM_MODE);
@@ -97,9 +88,16 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
 		break;
 	}
 
-	sm_writel(sm, EIM_MODE, mode);
-	sm_writel(sm, EIM_EDGE, edge);
-	sm_writel(sm, EIM_LEVEL, level);
+	if (ret == 0) {
+		sm_writel(sm, EIM_MODE, mode);
+		sm_writel(sm, EIM_EDGE, edge);
+		sm_writel(sm, EIM_LEVEL, level);
+
+		if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
+			flow_type |= IRQ_LEVEL;
+		desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
+		desc->status |= flow_type;
+	}
 
 	spin_unlock_irqrestore(&sm->lock, flags);
 
@@ -122,8 +120,6 @@ static void demux_eim_irq(unsigned int irq, struct irq_desc *desc)
 	unsigned long status, pending;
 	unsigned int i, ext_irq;
 
-	spin_lock(&sm->lock);
-
 	status = sm_readl(sm, EIM_ISR);
 	pending = status & sm_readl(sm, EIM_IMR);
 
@@ -133,10 +129,11 @@ static void demux_eim_irq(unsigned int irq, struct irq_desc *desc)
 
 		ext_irq = i + sm->eim_first_irq;
 		ext_desc = irq_desc + ext_irq;
-		ext_desc->handle_irq(ext_irq, ext_desc);
+		if (ext_desc->status & IRQ_LEVEL)
+			handle_level_irq(ext_irq, ext_desc);
+		else
+			handle_edge_irq(ext_irq, ext_desc);
 	}
-
-	spin_unlock(&sm->lock);
 }
 
 static int __init eim_init(void)
@@ -168,8 +165,9 @@ static int __init eim_init(void)
 	sm->eim_chip = &eim_chip;
 
 	for (i = 0; i < nr_irqs; i++) {
+		/* NOTE the handler we set here is ignored by the demux */
 		set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip,
-					 handle_edge_irq);
+					 handle_level_irq);
 		set_irq_chip_data(sm->eim_first_irq + i, sm);
 	}
 

arch/avr32/mach-at32ap/pio.c

@@ -12,7 +12,9 @@
 #include <linux/debugfs.h>
 #include <linux/fs.h>
 #include <linux/platform_device.h>
+#include <linux/irq.h>
 
+#include <asm/gpio.h>
 #include <asm/io.h>
 
 #include <asm/arch/portmux.h>
@@ -26,7 +28,8 @@ struct pio_device {
 	const struct platform_device *pdev;
 	struct clk *clk;
 	u32 pinmux_mask;
-	char name[32];
+	u32 gpio_mask;
+	char name[8];
 };
 
 static struct pio_device pio_dev[MAX_NR_PIO_DEVICES];
@@ -76,6 +79,9 @@ void __init at32_select_periph(unsigned int pin, unsigned int periph,
 	if (!(flags & AT32_GPIOF_PULLUP))
 		pio_writel(pio, PUDR, mask);
 
+	/* gpio_request NOT allowed */
+	set_bit(pin_index, &pio->gpio_mask);
+
 	return;
 
 fail:
@@ -99,19 +105,52 @@ void __init at32_select_gpio(unsigned int pin, unsigned long flags)
 		goto fail;
 	}
 
-	pio_writel(pio, PUER, mask);
-	if (flags & AT32_GPIOF_HIGH)
-		pio_writel(pio, SODR, mask);
-	else
-		pio_writel(pio, CODR, mask);
-	if (flags & AT32_GPIOF_OUTPUT)
+	if (flags & AT32_GPIOF_OUTPUT) {
+		if (flags & AT32_GPIOF_HIGH)
+			pio_writel(pio, SODR, mask);
+		else
+			pio_writel(pio, CODR, mask);
+		pio_writel(pio, PUDR, mask);
 		pio_writel(pio, OER, mask);
-	else
+	} else {
+		if (flags & AT32_GPIOF_PULLUP)
+			pio_writel(pio, PUER, mask);
+		else
+			pio_writel(pio, PUDR, mask);
+		if (flags & AT32_GPIOF_DEGLITCH)
+			pio_writel(pio, IFER, mask);
+		else
+			pio_writel(pio, IFDR, mask);
 		pio_writel(pio, ODR, mask);
+	}
 
 	pio_writel(pio, PER, mask);
-	if (!(flags & AT32_GPIOF_PULLUP))
-		pio_writel(pio, PUDR, mask);
+
+	/* gpio_request now allowed */
+	clear_bit(pin_index, &pio->gpio_mask);
+
+	return;
+
+fail:
+	dump_stack();
+}
+
+/* Reserve a pin, preventing anyone else from changing its configuration. */
+void __init at32_reserve_pin(unsigned int pin)
+{
+	struct pio_device *pio;
+	unsigned int pin_index = pin & 0x1f;
+
+	pio = gpio_to_pio(pin);
+	if (unlikely(!pio)) {
+		printk("pio: invalid pin %u\n", pin);
+		goto fail;
+	}
+
+	if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) {
+		printk("%s: pin %u is busy\n", pio->name, pin_index);
+		goto fail;
+	}
 
 	return;
 
@@ -119,20 +158,197 @@ fail:
 	dump_stack();
 }
 
+/*--------------------------------------------------------------------------*/
+
+/* GPIO API */
+
+int gpio_request(unsigned int gpio, const char *label)
+{
+	struct pio_device *pio;
+	unsigned int pin;
+
+	pio = gpio_to_pio(gpio);
+	if (!pio)
+		return -ENODEV;
+
+	pin = gpio & 0x1f;
+	if (test_and_set_bit(pin, &pio->gpio_mask))
+		return -EBUSY;
+
+	return 0;
+}
+EXPORT_SYMBOL(gpio_request);
+
+void gpio_free(unsigned int gpio)
+{
+	struct pio_device *pio;
+	unsigned int pin;
+
+	pio = gpio_to_pio(gpio);
+	if (!pio) {
+		printk(KERN_ERR
+		       "gpio: attempted to free invalid pin %u\n", gpio);
+		return;
+	}
+
+	pin = gpio & 0x1f;
+	if (!test_and_clear_bit(pin, &pio->gpio_mask))
+		printk(KERN_ERR "gpio: freeing free or non-gpio pin %s-%u\n",
+		       pio->name, pin);
+}
+EXPORT_SYMBOL(gpio_free);
+
+int gpio_direction_input(unsigned int gpio)
+{
+	struct pio_device *pio;
+	unsigned int pin;
+
+	pio = gpio_to_pio(gpio);
+	if (!pio)
+		return -ENODEV;
+
+	pin = gpio & 0x1f;
+	pio_writel(pio, ODR, 1 << pin);
+
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+int gpio_direction_output(unsigned int gpio)
+{
+	struct pio_device *pio;
+	unsigned int pin;
+
+	pio = gpio_to_pio(gpio);
+	if (!pio)
+		return -ENODEV;
+
+	pin = gpio & 0x1f;
+	pio_writel(pio, OER, 1 << pin);
+
+	return 0;
+}
+EXPORT_SYMBOL(gpio_direction_output);
+
+int gpio_get_value(unsigned int gpio)
+{
+	struct pio_device *pio = &pio_dev[gpio >> 5];
+
+	return (pio_readl(pio, PDSR) >> (gpio & 0x1f)) & 1;
+}
+EXPORT_SYMBOL(gpio_get_value);
+
+void gpio_set_value(unsigned int gpio, int value)
+{
+	struct pio_device *pio = &pio_dev[gpio >> 5];
+	u32 mask;
+
+	mask = 1 << (gpio & 0x1f);
+	if (value)
+		pio_writel(pio, SODR, mask);
+	else
+		pio_writel(pio, CODR, mask);
+}
+EXPORT_SYMBOL(gpio_set_value);
+
+/*--------------------------------------------------------------------------*/
+
+/* GPIO IRQ support */
+
+static void gpio_irq_mask(unsigned irq)
+{
+	unsigned		gpio = irq_to_gpio(irq);
+	struct pio_device	*pio = &pio_dev[gpio >> 5];
+
+	pio_writel(pio, IDR, 1 << (gpio & 0x1f));
+}
+
+static void gpio_irq_unmask(unsigned irq)
+{
+	unsigned		gpio = irq_to_gpio(irq);
+	struct pio_device	*pio = &pio_dev[gpio >> 5];
+
+	pio_writel(pio, IER, 1 << (gpio & 0x1f));
+}
+
+static int gpio_irq_type(unsigned irq, unsigned type)
+{
+	if (type != IRQ_TYPE_EDGE_BOTH && type != IRQ_TYPE_NONE)
+		return -EINVAL;
+
+	return 0;
+}
+
+static struct irq_chip gpio_irqchip = {
+	.name		= "gpio",
+	.mask		= gpio_irq_mask,
+	.unmask		= gpio_irq_unmask,
+	.set_type	= gpio_irq_type,
+};
+
+static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+	struct pio_device	*pio = get_irq_chip_data(irq);
+	unsigned		gpio_irq;
+
+	gpio_irq = (unsigned) get_irq_data(irq);
+	for (;;) {
+		u32		isr;
+		struct irq_desc	*d;
+
+		/* ack pending GPIO interrupts */
+		isr = pio_readl(pio, ISR) & pio_readl(pio, IMR);
+		if (!isr)
+			break;
+		do {
+			int i;
+
+			i = ffs(isr) - 1;
+			isr &= ~(1 << i);
+
+			i += gpio_irq;
+			d = &irq_desc[i];
+
+			d->handle_irq(i, d);
+		} while (isr);
+	}
+}
+
+static void __init
+gpio_irq_setup(struct pio_device *pio, int irq, int gpio_irq)
+{
+	unsigned	i;
+
+	set_irq_chip_data(irq, pio);
+	set_irq_data(irq, (void *) gpio_irq);
+
+	for (i = 0; i < 32; i++, gpio_irq++) {
+		set_irq_chip_data(gpio_irq, pio);
+		set_irq_chip_and_handler(gpio_irq, &gpio_irqchip,
+				handle_simple_irq);
+	}
+
+	set_irq_chained_handler(irq, gpio_irq_handler);
+}
+
+/*--------------------------------------------------------------------------*/
+
 static int __init pio_probe(struct platform_device *pdev)
 {
 	struct pio_device *pio = NULL;
+	int irq = platform_get_irq(pdev, 0);
+	int gpio_irq_base = GPIO_IRQ_BASE + pdev->id * 32;
 
 	BUG_ON(pdev->id >= MAX_NR_PIO_DEVICES);
 	pio = &pio_dev[pdev->id];
 	BUG_ON(!pio->regs);
 
-	/* TODO: Interrupts */
+	gpio_irq_setup(pio, irq, gpio_irq_base);
 
 	platform_set_drvdata(pdev, pio);
 
-	printk(KERN_INFO "%s: Atmel Port Multiplexer at 0x%p (irq %d)\n",
-	       pio->name, pio->regs, platform_get_irq(pdev, 0));
+	printk(KERN_DEBUG "%s: base 0x%p, irq %d chains %d..%d\n",
+	       pio->name, pio->regs, irq, gpio_irq_base, gpio_irq_base + 31);
 
 	return 0;
 }
@@ -148,7 +364,7 @@ static int __init pio_init(void)
 {
 	return platform_driver_register(&pio_driver);
 }
-subsys_initcall(pio_init);
+postcore_initcall(pio_init);
 
 void __init at32_init_pio(struct platform_device *pdev)
 {
@@ -184,6 +400,13 @@ void __init at32_init_pio(struct platform_device *pdev)
 	pio->pdev = pdev;
 	pio->regs = ioremap(regs->start, regs->end - regs->start + 1);
 
-	pio_writel(pio, ODR, ~0UL);
-	pio_writel(pio, PER, ~0UL);
+	/*
+	 * request_gpio() is only valid for pins that have been
+	 * explicitly configured as GPIO and not previously requested
+	 */
+	pio->gpio_mask = ~0UL;
+
+	/* start with irqs disabled and acked */
+	pio_writel(pio, IDR, ~0UL);
+	(void) pio_readl(pio, ISR);
 }

arch/avr32/mm/cache.c

@@ -22,18 +22,34 @@
 
 void invalidate_dcache_region(void *start, size_t size)
 {
-	unsigned long v, begin, end, linesz;
+	unsigned long v, begin, end, linesz, mask;
+	int flush = 0;
 
 	linesz = boot_cpu_data.dcache.linesz;
+	mask = linesz - 1;
+
+	/* when first and/or last cachelines are shared, flush them
+	 * instead of invalidating ... never discard valid data!
+	 */
+	begin = (unsigned long)start;
+	end = begin + size - 1;
+
+	if (begin & mask) {
+		flush_dcache_line(start);
+		begin += linesz;
+		flush = 1;
+	}
+	if ((end & mask) != mask) {
+		flush_dcache_line((void *)end);
+		end -= linesz;
+		flush = 1;
+	}
 
-	//printk("invalidate dcache: %p + %u\n", start, size);
-
-	/* You asked for it, you got it */
-	begin = (unsigned long)start & ~(linesz - 1);
-	end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
-	for (v = begin; v < end; v += linesz)
+	/* remaining cachelines only need invalidation */
+	for (v = begin; v <= end; v += linesz)
 		invalidate_dcache_line((void *)v);
+	if (flush)
+		flush_write_buffer();
 }
 
 void clean_dcache_region(void *start, size_t size)

arch/avr32/mm/tlb.c

@@ -360,7 +360,7 @@ static int tlb_open(struct inode *inode, struct file *file)
 	return seq_open(file, &tlb_ops);
 }
 
-static struct file_operations proc_tlb_operations = {
+static const struct file_operations proc_tlb_operations = {
 	.open		= tlb_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,

arch/cris/Kconfig

@@ -9,6 +9,10 @@ config MMU
 	bool
 	default y
 
+config ZONE_DMA
+	bool
+	default y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
@@ -40,6 +44,9 @@ config IRQ_PER_CPU
 	bool
 	default y
 
+config NO_IOPORT
+	def_bool y
+
 config CRIS
 	bool
 	default y

arch/cris/arch-v10/drivers/axisflashmap.c

@@ -359,8 +359,7 @@ static struct mtd_info *flash_probe(void)
 		 * So we use the MTD concatenation layer instead of further
 		 * complicating the probing procedure.
 		 */
-		mtd_cse = mtd_concat_create(mtds,
-					    sizeof(mtds) / sizeof(mtds[0]),
+		mtd_cse = mtd_concat_create(mtds, ARRAY_SIZE(mtds),
 					    "cse0+cse1");
 #else
 		printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "

arch/cris/arch-v10/drivers/ds1302.c

@@ -499,7 +499,7 @@ print_rtc_status(void)
 
 /* The various file operations we support. */
 
-static struct file_operations rtc_fops = {
+static const struct file_operations rtc_fops = {
 	.owner =	THIS_MODULE,
 	.ioctl =	rtc_ioctl,
 }; 

arch/cris/arch-v10/drivers/eeprom.c

@@ -172,7 +172,7 @@ static const char eeprom_name[] = "eeprom";
 static struct eeprom_type eeprom;
 
 /* This is the exported file-operations structure for this device. */
-struct file_operations eeprom_fops =
+const struct file_operations eeprom_fops =
 {
   .llseek  = eeprom_lseek,
   .read    = eeprom_read,

arch/cris/arch-v10/drivers/gpio.c

@@ -838,7 +838,7 @@ gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
 	return 0;
 }
 
-struct file_operations gpio_fops = {
+const struct file_operations gpio_fops = {
 	.owner       = THIS_MODULE,
 	.poll        = gpio_poll,
 	.ioctl       = gpio_ioctl,

arch/cris/arch-v10/drivers/i2c.c

@@ -692,7 +692,7 @@ i2c_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
-static struct file_operations i2c_fops = {
+static const struct file_operations i2c_fops = {
 	.owner    = THIS_MODULE,
 	.ioctl    = i2c_ioctl,
 	.open     = i2c_open,

arch/cris/arch-v10/drivers/pcf8563.c

@@ -56,7 +56,7 @@ static const unsigned char days_in_month[] =
 
 int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
 
-static struct file_operations pcf8563_fops = {
+static const struct file_operations pcf8563_fops = {
 	.owner = THIS_MODULE,
 	.ioctl = pcf8563_ioctl,
 };

arch/cris/arch-v10/kernel/time.c

@@ -38,7 +38,6 @@ unsigned long get_ns_in_jiffie(void)
 	unsigned long flags;
 
 	local_irq_save(flags);
-	local_irq_disable();
 	timer_count = *R_TIMER0_DATA;
 	presc_count = *R_TIM_PRESC_STATUS;  
 	/* presc_count might be wrapped */

arch/cris/arch-v10/mm/tlb.c

@@ -42,8 +42,7 @@ flush_tlb_all(void)
 	 * in the same 4-way entry group. details.. 
 	 */
 
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 	for(i = 0; i < NUM_TLB_ENTRIES; i++) {
 		*R_TLB_SELECT = ( IO_FIELD(R_TLB_SELECT, index, i) );
 		*R_TLB_HI = ( IO_FIELD(R_TLB_HI, page_id, INVALID_PAGEID ) |
@@ -78,8 +77,7 @@ flush_tlb_mm(struct mm_struct *mm)
 	 * global pages. is it worth the extra I/O ? 
 	 */
 
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 	for(i = 0; i < NUM_TLB_ENTRIES; i++) {
 		*R_TLB_SELECT = IO_FIELD(R_TLB_SELECT, index, i);
 		if (IO_EXTRACT(R_TLB_HI, page_id, *R_TLB_HI) == page_id) {
@@ -118,8 +116,7 @@ flush_tlb_page(struct vm_area_struct *vma,
 	 * and the virtual address requested 
 	 */
 
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 	for(i = 0; i < NUM_TLB_ENTRIES; i++) {
 		unsigned long tlb_hi;
 		*R_TLB_SELECT = IO_FIELD(R_TLB_SELECT, index, i);

arch/cris/arch-v10/vmlinux.lds.S

@@ -82,7 +82,8 @@ SECTIONS
 		__con_initcall_end = .;
 	}	
 	SECURITY_INIT
-		
+
+#ifdef CONFIG_BLK_DEV_INITRD
 	.init.ramfs : {
 		__initramfs_start = .;
 		*(.init.ramfs)
@@ -93,6 +94,7 @@ SECTIONS
 		FILL (0); 
 		. = ALIGN (8192);
 	}
+#endif
 	
 	__vmlinux_end = .;            /* last address of the physical file */
   	__init_end = .;

arch/cris/arch-v32/drivers/cryptocop.c

@@ -266,7 +266,7 @@ static void print_user_dma_lists(struct cryptocop_dma_list_operation *dma_op);
 
 
 
-struct file_operations cryptocop_fops = {
+const struct file_operations cryptocop_fops = {
 	owner: THIS_MODULE,
 	open: cryptocop_open,
 	release: cryptocop_release,

arch/cris/arch-v32/drivers/gpio.c

@@ -705,7 +705,7 @@ gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
 	return 0;
 }
 
-struct file_operations gpio_fops = {
+const struct file_operations gpio_fops = {
 	.owner       = THIS_MODULE,
 	.poll        = gpio_poll,
 	.ioctl       = gpio_ioctl,

arch/cris/arch-v32/drivers/i2c.c

@@ -573,7 +573,7 @@ i2c_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
-static struct file_operations i2c_fops = {
+static const struct file_operations i2c_fops = {
 	owner:    THIS_MODULE,
 	ioctl:    i2c_ioctl,
 	open:     i2c_open,

arch/cris/arch-v32/drivers/pcf8563.c

@@ -50,7 +50,7 @@ int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
 int pcf8563_open(struct inode *, struct file *);
 int pcf8563_release(struct inode *, struct file *);
 
-static struct file_operations pcf8563_fops = {
+static const struct file_operations pcf8563_fops = {
 	owner: THIS_MODULE,
 	ioctl: pcf8563_ioctl,
 	open: pcf8563_open,

arch/cris/arch-v32/drivers/sync_serial.c

@@ -187,7 +187,7 @@ static struct sync_port ports[]=
 
 #define NUMBER_OF_PORTS (sizeof(ports)/sizeof(sync_port))
 
-static struct file_operations sync_serial_fops = {
+static const struct file_operations sync_serial_fops = {
 	.owner   = THIS_MODULE,
 	.write   = sync_serial_write,
 	.read    = sync_serial_read,

arch/cris/arch-v32/mm/tlb.c

@@ -54,8 +54,7 @@ __flush_tlb_all(void)
 	 * Mask with 0xf so similar TLB entries aren't written in the same 4-way
 	 * entry group.
 	 */
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 
 	for (mmu = 1; mmu <= 2; mmu++) {
 		SUPP_BANK_SEL(mmu); /* Select the MMU */
@@ -92,8 +91,7 @@ __flush_tlb_mm(struct mm_struct *mm)
 		return;
 
 	/* Mark the TLB entries that match the page_id as invalid. */
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 
 	for (mmu = 1; mmu <= 2; mmu++) {
 		SUPP_BANK_SEL(mmu);
@@ -140,8 +138,7 @@ __flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
 	 * Invalidate those TLB entries that match both the mm context and the
 	 * requested virtual address.
 	 */
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 
 	for (mmu = 1; mmu <= 2; mmu++) {
 		SUPP_BANK_SEL(mmu);