Merge branch 'akpm' (Andrew's patch-bomb)

Merge second batch of patches from Andrew Morton:
 - various misc things
 - core kernel changes to prctl, exit, exec, init, etc.
 - kernel/watchdog.c updates
 - get_maintainer
 - MAINTAINERS
 - the backlight driver queue
 - core bitops code cleanups
 - the led driver queue
 - some core prio_tree work
 - checkpatch udpates
 - largeish crc32 update
 - a new poll() feature for the v4l guys
 - the rtc driver queue
 - fatfs
 - ptrace
 - signals
 - kmod/usermodehelper updates
 - coredump
 - procfs updates

* emailed from Andrew Morton <akpm@linux-foundation.org>: (141 commits)
  seq_file: add seq_set_overflow(), seq_overflow()
  proc-ns: use d_set_d_op() API to set dentry ops in proc_ns_instantiate().
  procfs: speed up /proc/pid/stat, statm
  procfs: add num_to_str() to speed up /proc/stat
  proc: speed up /proc/stat handling
  fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static
  coredump: add VM_NODUMP, MADV_NODUMP, MADV_CLEAR_NODUMP
  coredump: remove VM_ALWAYSDUMP flag
  kmod: make __request_module() killable
  kmod: introduce call_modprobe() helper
  usermodehelper: ____call_usermodehelper() doesn't need do_exit()
  usermodehelper: kill umh_wait, renumber UMH_* constants
  usermodehelper: implement UMH_KILLABLE
  usermodehelper: introduce umh_complete(sub_info)
  usermodehelper: use UMH_WAIT_PROC consistently
  signal: zap_pid_ns_processes: s/SEND_SIG_NOINFO/SEND_SIG_FORCED/
  signal: oom_kill_task: use SEND_SIG_FORCED instead of force_sig()
  signal: cosmetic, s/from_ancestor_ns/force/ in prepare_signal() paths
  signal: give SEND_SIG_FORCED more power to beat SIGNAL_UNKILLABLE
  Hexagon: use set_current_blocked() and block_sigmask()
  ...

Documentation/00-INDEX

@@ -104,6 +104,8 @@ cpuidle/
 	- info on CPU_IDLE, CPU idle state management subsystem.
 cputopology.txt
 	- documentation on how CPU topology info is exported via sysfs.
+crc32.txt
+	- brief tutorial on CRC computation
 cris/
 	- directory with info about Linux on CRIS architecture.
 crypto/

Documentation/backlight/lp855x-driver.txt

@@ -0,0 +1,78 @@
+Kernel driver lp855x
+====================
+
+Backlight driver for LP855x ICs
+
+Supported chips:
+	Texas Instruments LP8550, LP8551, LP8552, LP8553 and LP8556
+
+Author: Milo(Woogyom) Kim <milo.kim@ti.com>
+
+Description
+-----------
+
+* Brightness control
+
+Brightness can be controlled by the pwm input or the i2c command.
+The lp855x driver supports both cases.
+
+* Device attributes
+
+1) bl_ctl_mode
+Backlight control mode.
+Value : pwm based or register based
+
+2) chip_id
+The lp855x chip id.
+Value : lp8550/lp8551/lp8552/lp8553/lp8556
+
+Platform data for lp855x
+------------------------
+
+For supporting platform specific data, the lp855x platform data can be used.
+
+* name : Backlight driver name. If it is not defined, default name is set.
+* mode : Brightness control mode. PWM or register based.
+* device_control : Value of DEVICE CONTROL register.
+* initial_brightness : Initial value of backlight brightness.
+* pwm_data : Platform specific pwm generation functions.
+	     Only valid when brightness is pwm input mode.
+	     Functions should be implemented by PWM driver.
+	     - pwm_set_intensity() : set duty of PWM
+	     - pwm_get_intensity() : get current duty of PWM
+* load_new_rom_data :
+	0 : use default configuration data
+	1 : update values of eeprom or eprom registers on loading driver
+* size_program : Total size of lp855x_rom_data.
+* rom_data : List of new eeprom/eprom registers.
+
+example 1) lp8552 platform data : i2c register mode with new eeprom data
+
+#define EEPROM_A5_ADDR	0xA5
+#define EEPROM_A5_VAL	0x4f	/* EN_VSYNC=0 */
+
+static struct lp855x_rom_data lp8552_eeprom_arr[] = {
+	{EEPROM_A5_ADDR, EEPROM_A5_VAL},
+};
+
+static struct lp855x_platform_data lp8552_pdata = {
+	.name = "lcd-bl",
+	.mode = REGISTER_BASED,
+	.device_control = I2C_CONFIG(LP8552),
+	.initial_brightness = INITIAL_BRT,
+	.load_new_rom_data = 1,
+	.size_program = ARRAY_SIZE(lp8552_eeprom_arr),
+	.rom_data = lp8552_eeprom_arr,
+};
+
+example 2) lp8556 platform data : pwm input mode with default rom data
+
+static struct lp855x_platform_data lp8556_pdata = {
+	.mode = PWM_BASED,
+	.device_control = PWM_CONFIG(LP8556),
+	.initial_brightness = INITIAL_BRT,
+	.pwm_data = {
+		     .pwm_set_intensity = platform_pwm_set_intensity,
+		     .pwm_get_intensity = platform_pwm_get_intensity,
+		     },
+};

Documentation/crc32.txt

@@ -0,0 +1,182 @@
+A brief CRC tutorial.
+
+A CRC is a long-division remainder.  You add the CRC to the message,
+and the whole thing (message+CRC) is a multiple of the given
+CRC polynomial.  To check the CRC, you can either check that the
+CRC matches the recomputed value, *or* you can check that the
+remainder computed on the message+CRC is 0.  This latter approach
+is used by a lot of hardware implementations, and is why so many
+protocols put the end-of-frame flag after the CRC.
+
+It's actually the same long division you learned in school, except that
+- We're working in binary, so the digits are only 0 and 1, and
+- When dividing polynomials, there are no carries.  Rather than add and
+  subtract, we just xor.  Thus, we tend to get a bit sloppy about
+  the difference between adding and subtracting.
+
+Like all division, the remainder is always smaller than the divisor.
+To produce a 32-bit CRC, the divisor is actually a 33-bit CRC polynomial.
+Since it's 33 bits long, bit 32 is always going to be set, so usually the
+CRC is written in hex with the most significant bit omitted.  (If you're
+familiar with the IEEE 754 floating-point format, it's the same idea.)
+
+Note that a CRC is computed over a string of *bits*, so you have
+to decide on the endianness of the bits within each byte.  To get
+the best error-detecting properties, this should correspond to the
+order they're actually sent.  For example, standard RS-232 serial is
+little-endian; the most significant bit (sometimes used for parity)
+is sent last.  And when appending a CRC word to a message, you should
+do it in the right order, matching the endianness.
+
+Just like with ordinary division, you proceed one digit (bit) at a time.
+Each step of the division you take one more digit (bit) of the dividend
+and append it to the current remainder.  Then you figure out the
+appropriate multiple of the divisor to subtract to being the remainder
+back into range.  In binary, this is easy - it has to be either 0 or 1,
+and to make the XOR cancel, it's just a copy of bit 32 of the remainder.
+
+When computing a CRC, we don't care about the quotient, so we can
+throw the quotient bit away, but subtract the appropriate multiple of
+the polynomial from the remainder and we're back to where we started,
+ready to process the next bit.
+
+A big-endian CRC written this way would be coded like:
+for (i = 0; i < input_bits; i++) {
+	multiple = remainder & 0x80000000 ? CRCPOLY : 0;
+	remainder = (remainder << 1 | next_input_bit()) ^ multiple;
+}
+
+Notice how, to get at bit 32 of the shifted remainder, we look
+at bit 31 of the remainder *before* shifting it.
+
+But also notice how the next_input_bit() bits we're shifting into
+the remainder don't actually affect any decision-making until
+32 bits later.  Thus, the first 32 cycles of this are pretty boring.
+Also, to add the CRC to a message, we need a 32-bit-long hole for it at
+the end, so we have to add 32 extra cycles shifting in zeros at the
+end of every message,
+
+These details lead to a standard trick: rearrange merging in the
+next_input_bit() until the moment it's needed.  Then the first 32 cycles
+can be precomputed, and merging in the final 32 zero bits to make room
+for the CRC can be skipped entirely.  This changes the code to:
+
+for (i = 0; i < input_bits; i++) {
+	remainder ^= next_input_bit() << 31;
+	multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+	remainder = (remainder << 1) ^ multiple;
+}
+
+With this optimization, the little-endian code is particularly simple:
+for (i = 0; i < input_bits; i++) {
+	remainder ^= next_input_bit();
+	multiple = (remainder & 1) ? CRCPOLY : 0;
+	remainder = (remainder >> 1) ^ multiple;
+}
+
+The most significant coefficient of the remainder polynomial is stored
+in the least significant bit of the binary "remainder" variable.
+The other details of endianness have been hidden in CRCPOLY (which must
+be bit-reversed) and next_input_bit().
+
+As long as next_input_bit is returning the bits in a sensible order, we don't
+*have* to wait until the last possible moment to merge in additional bits.
+We can do it 8 bits at a time rather than 1 bit at a time:
+for (i = 0; i < input_bytes; i++) {
+	remainder ^= next_input_byte() << 24;
+	for (j = 0; j < 8; j++) {
+		multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+		remainder = (remainder << 1) ^ multiple;
+	}
+}
+
+Or in little-endian:
+for (i = 0; i < input_bytes; i++) {
+	remainder ^= next_input_byte();
+	for (j = 0; j < 8; j++) {
+		multiple = (remainder & 1) ? CRCPOLY : 0;
+		remainder = (remainder >> 1) ^ multiple;
+	}
+}
+
+If the input is a multiple of 32 bits, you can even XOR in a 32-bit
+word at a time and increase the inner loop count to 32.
+
+You can also mix and match the two loop styles, for example doing the
+bulk of a message byte-at-a-time and adding bit-at-a-time processing
+for any fractional bytes at the end.
+
+To reduce the number of conditional branches, software commonly uses
+the byte-at-a-time table method, popularized by Dilip V. Sarwate,
+"Computation of Cyclic Redundancy Checks via Table Look-Up", Comm. ACM
+v.31 no.8 (August 1998) p. 1008-1013.
+
+Here, rather than just shifting one bit of the remainder to decide
+in the correct multiple to subtract, we can shift a byte at a time.
+This produces a 40-bit (rather than a 33-bit) intermediate remainder,
+and the correct multiple of the polynomial to subtract is found using
+a 256-entry lookup table indexed by the high 8 bits.
+
+(The table entries are simply the CRC-32 of the given one-byte messages.)
+
+When space is more constrained, smaller tables can be used, e.g. two
+4-bit shifts followed by a lookup in a 16-entry table.
+
+It is not practical to process much more than 8 bits at a time using this
+technique, because tables larger than 256 entries use too much memory and,
+more importantly, too much of the L1 cache.
+
+To get higher software performance, a "slicing" technique can be used.
+See "High Octane CRC Generation with the Intel Slicing-by-8 Algorithm",
+ftp://download.intel.com/technology/comms/perfnet/download/slicing-by-8.pdf
+
+This does not change the number of table lookups, but does increase
+the parallelism.  With the classic Sarwate algorithm, each table lookup
+must be completed before the index of the next can be computed.
+
+A "slicing by 2" technique would shift the remainder 16 bits at a time,
+producing a 48-bit intermediate remainder.  Rather than doing a single
+lookup in a 65536-entry table, the two high bytes are looked up in
+two different 256-entry tables.  Each contains the remainder required
+to cancel out the corresponding byte.  The tables are different because the
+polynomials to cancel are different.  One has non-zero coefficients from
+x^32 to x^39, while the other goes from x^40 to x^47.
+
+Since modern processors can handle many parallel memory operations, this
+takes barely longer than a single table look-up and thus performs almost
+twice as fast as the basic Sarwate algorithm.
+
+This can be extended to "slicing by 4" using 4 256-entry tables.
+Each step, 32 bits of data is fetched, XORed with the CRC, and the result
+broken into bytes and looked up in the tables.  Because the 32-bit shift
+leaves the low-order bits of the intermediate remainder zero, the
+final CRC is simply the XOR of the 4 table look-ups.
+
+But this still enforces sequential execution: a second group of table
+look-ups cannot begin until the previous groups 4 table look-ups have all
+been completed.  Thus, the processor's load/store unit is sometimes idle.
+
+To make maximum use of the processor, "slicing by 8" performs 8 look-ups
+in parallel.  Each step, the 32-bit CRC is shifted 64 bits and XORed
+with 64 bits of input data.  What is important to note is that 4 of
+those 8 bytes are simply copies of the input data; they do not depend
+on the previous CRC at all.  Thus, those 4 table look-ups may commence
+immediately, without waiting for the previous loop iteration.
+
+By always having 4 loads in flight, a modern superscalar processor can
+be kept busy and make full use of its L1 cache.
+
+Two more details about CRC implementation in the real world:
+
+Normally, appending zero bits to a message which is already a multiple
+of a polynomial produces a larger multiple of that polynomial.  Thus,
+a basic CRC will not detect appended zero bits (or bytes).  To enable
+a CRC to detect this condition, it's common to invert the CRC before
+appending it.  This makes the remainder of the message+crc come out not
+as zero, but some fixed non-zero value.  (The CRC of the inversion
+pattern, 0xffffffff.)
+
+The same problem applies to zero bits prepended to the message, and a
+similar solution is used.  Instead of starting the CRC computation with
+a remainder of 0, an initial remainder of all ones is used.  As long as
+you start the same way on decoding, it doesn't make a difference.

Documentation/leds/leds-lp5521.txt

@@ -43,17 +43,23 @@ Format: 10x mA i.e 10 means 1.0 mA
 example platform data:
 
 Note: chan_nr can have values between 0 and 2.
+The name of each channel can be configurable.
+If the name field is not defined, the default name will be set to 'xxxx:channelN'
+(XXXX : pdata->label or i2c client name, N : channel number)
 
 static struct lp5521_led_config lp5521_led_config[] = {
         {
+		.name = "red",
                 .chan_nr        = 0,
                 .led_current    = 50,
 		.max_current    = 130,
         }, {
+		.name = "green",
                 .chan_nr        = 1,
                 .led_current    = 0,
 		.max_current    = 130,
         }, {
+		.name = "blue",
                 .chan_nr        = 2,
                 .led_current    = 0,
 		.max_current    = 130,
@@ -86,3 +92,60 @@ static struct lp5521_platform_data lp5521_platform_data = {
 
 If the current is set to 0 in the platform data, that channel is
 disabled and it is not visible in the sysfs.
+
+The 'update_config' : CONFIG register (ADDR 08h)
+This value is platform-specific data.
+If update_config is not defined, the CONFIG register is set with
+'LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT'.
+(Enable auto-powersave, set charge pump to auto, red to battery)
+
+example of update_config :
+
+#define LP5521_CONFIGS	(LP5521_PWM_HF | LP5521_PWRSAVE_EN | \
+			LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT | \
+			LP5521_CLK_INT)
+
+static struct lp5521_platform_data lp5521_pdata = {
+	.led_config = lp5521_led_config,
+	.num_channels = ARRAY_SIZE(lp5521_led_config),
+	.clock_mode = LP5521_CLOCK_INT,
+	.update_config = LP5521_CONFIGS,
+};
+
+LED patterns : LP5521 has autonomous operation without external control.
+Pattern data can be defined in the platform data.
+
+example of led pattern data :
+
+/* RGB(50,5,0) 500ms on, 500ms off, infinite loop */
+static u8 pattern_red[] = {
+		0x40, 0x32, 0x60, 0x00,	0x40, 0x00, 0x60, 0x00,
+		};
+
+static u8 pattern_green[] = {
+		0x40, 0x05, 0x60, 0x00, 0x40, 0x00, 0x60, 0x00,
+		};
+
+static struct lp5521_led_pattern board_led_patterns[] = {
+	{
+		.r = pattern_red,
+		.g = pattern_green,
+		.size_r = ARRAY_SIZE(pattern_red),
+		.size_g = ARRAY_SIZE(pattern_green),
+	},
+};
+
+static struct lp5521_platform_data lp5521_platform_data = {
+        .led_config     = lp5521_led_config,
+        .num_channels   = ARRAY_SIZE(lp5521_led_config),
+        .clock_mode     = LP5521_CLOCK_EXT,
+	.patterns = board_led_patterns,
+	.num_patterns = ARRAY_SIZE(board_led_patterns),
+};
+
+Then predefined led pattern(s) can be executed via the sysfs.
+To start the pattern #1,
+# echo 1 > /sys/bus/i2c/devices/xxxx/led_pattern
+(xxxx : i2c bus & slave address)
+To end the pattern,
+# echo 0 > /sys/bus/i2c/devices/xxxx/led_pattern

MAINTAINERS

@@ -163,7 +163,7 @@ M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 L:	linux-serial@vger.kernel.org
 W:	http://serial.sourceforge.net
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
 F:	drivers/tty/serial/8250*
 F:	include/linux/serial_8250.h
 
@@ -464,6 +464,7 @@ ALPHA PORT
 M:	Richard Henderson <rth@twiddle.net>
 M:	Ivan Kokshaysky <ink@jurassic.park.msu.ru>
 M:	Matt Turner <mattst88@gmail.com>
+S:	Odd Fixes
 L:	linux-alpha@vger.kernel.org
 F:	arch/alpha/
 
@@ -715,6 +716,7 @@ S:	Maintained
 ARM/CLKDEV SUPPORT
 M:	Russell King <linux@arm.linux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
 F:	arch/arm/include/asm/clkdev.h
 F:	drivers/clk/clkdev.c
 
@@ -1502,7 +1504,7 @@ F:	drivers/i2c/busses/i2c-bfin-twi.c
 
 BLOCK LAYER
 M:	Jens Axboe <axboe@kernel.dk>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
 S:	Maintained
 F:	block/
 
@@ -1640,7 +1642,7 @@ BTTV VIDEO4LINUX DRIVER
 M:	Mauro Carvalho Chehab <mchehab@infradead.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	Documentation/video4linux/bttv/
 F:	drivers/media/video/bt8xx/bttv*
@@ -1670,7 +1672,7 @@ F:	fs/cachefiles/
 CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER
 M:	Jonathan Corbet <corbet@lwn.net>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	Documentation/video4linux/cafe_ccic
 F:	drivers/media/video/marvell-ccic/
@@ -1841,6 +1843,7 @@ F:	include/linux/cleancache.h
 
 CLK API
 M:	Russell King <linux@arm.linux.org.uk>
+S:	Maintained
 F:	include/linux/clk.h
 
 CISCO FCOE HBA DRIVER
@@ -2036,7 +2039,7 @@ CX18 VIDEO4LINUX DRIVER
 M:	Andy Walls <awalls@md.metrocast.net>
 L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://linuxtv.org
 W:	http://www.ivtvdriver.org/index.php/Cx18
 S:	Maintained
@@ -2350,7 +2353,7 @@ F:	Documentation/blockdev/drbd/
 
 DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
 S:	Supported
 F:	Documentation/kobject.txt
 F:	drivers/base/
@@ -2372,7 +2375,7 @@ INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
 M:	Keith Packard <keithp@keithp.com>
 L:	intel-gfx@lists.freedesktop.org (subscribers-only)
 L:	dri-devel@lists.freedesktop.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux.git
 S:	Supported
 F:	drivers/gpu/drm/i915
 F:	include/drm/i915*
@@ -2966,8 +2969,8 @@ GFS2 FILE SYSTEM
 M:	Steven Whitehouse <swhiteho@redhat.com>
 L:	cluster-devel@redhat.com
 W:	http://sources.redhat.com/cluster/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw.git
 S:	Supported
 F:	Documentation/filesystems/gfs2*.txt
 F:	fs/gfs2/
@@ -3008,42 +3011,42 @@ F:	drivers/net/ethernet/aeroflex/
 GSPCA FINEPIX SUBDRIVER
 M:	Frank Zago <frank@zago.net>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/finepix.c
 
 GSPCA GL860 SUBDRIVER
 M:	Olivier Lorin <o.lorin@laposte.net>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/gl860/
 
 GSPCA M5602 SUBDRIVER
 M:	Erik Andren <erik.andren@gmail.com>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/m5602/
 
 GSPCA PAC207 SONIXB SUBDRIVER
 M:	Hans de Goede <hdegoede@redhat.com>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/pac207.c
 
 GSPCA SN9C20X SUBDRIVER
 M:	Brian Johnson <brijohn@gmail.com>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/sn9c20x.c
 
 GSPCA T613 SUBDRIVER
 M:	Leandro Costantino <lcostantino@gmail.com>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/t613.c
 
@@ -3051,7 +3054,7 @@ GSPCA USB WEBCAM DRIVER
 M:	Jean-Francois Moine <moinejf@free.fr>
 W:	http://moinejf.free.fr
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/gspca/
 
@@ -3337,7 +3340,7 @@ IDE SUBSYSTEM
 M:	"David S. Miller" <davem@davemloft.net>
 L:	linux-ide@vger.kernel.org
 Q:	http://patchwork.ozlabs.org/project/linux-ide/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide.git
 S:	Maintained
 F:	Documentation/ide/
 F:	drivers/ide/
@@ -3449,7 +3452,7 @@ F:	firmware/isci/
 INTEL IDLE DRIVER
 M:	Len Brown <lenb@kernel.org>
 L:	linux-pm@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git
 S:	Supported
 F:	drivers/idle/intel_idle.c
 
@@ -3756,7 +3759,7 @@ IVTV VIDEO4LINUX DRIVER
 M:	Andy Walls <awalls@md.metrocast.net>
 L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.ivtvdriver.org
 S:	Maintained
 F:	Documentation/video4linux/*.ivtv
@@ -3852,8 +3855,8 @@ F:	fs/autofs4/
 
 KERNEL BUILD + files below scripts/ (unless maintained elsewhere)
 M:	Michal Marek <mmarek@suse.cz>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git for-next
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git rc-fixes
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git for-next
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git rc-fixes
 L:	linux-kbuild@vger.kernel.org
 S:	Maintained
 F:	Documentation/kbuild/
@@ -4233,12 +4236,14 @@ F:	Documentation/hwmon/ltc4261
 F:	drivers/hwmon/ltc4261.c
 
 LTP (Linux Test Project)
-M:	Rishikesh K Rajak <risrajak@linux.vnet.ibm.com>
-M:	Garrett Cooper <yanegomi@gmail.com>
+M:	Shubham Goyal <shubham@linux.vnet.ibm.com>
 M:	Mike Frysinger <vapier@gentoo.org>
-M:	Subrata Modak <subrata@linux.vnet.ibm.com>
+M:	Cyril Hrubis <chrubis@suse.cz>
+M:	Caspar Zhang <caspar@casparzhang.com>
+M:	Wanlong Gao <gaowanlong@cn.fujitsu.com>
 L:	ltp-list@lists.sourceforge.net (subscribers-only)
 W:	http://ltp.sourceforge.net/
+T:	git git://github.com/linux-test-project/ltp.git
 T:	git git://ltp.git.sourceforge.net/gitroot/ltp/ltp-dev
 S:	Maintained
 
@@ -4276,7 +4281,7 @@ MAC80211
 M:	Johannes Berg <johannes@sipsolutions.net>
 L:	linux-wireless@vger.kernel.org
 W:	http://linuxwireless.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless.git
 S:	Maintained
 F:	Documentation/networking/mac80211-injection.txt
 F:	include/net/mac80211.h
@@ -4287,7 +4292,7 @@ M:	Stefano Brivio <stefano.brivio@polimi.it>
 M:	Mattias Nissler <mattias.nissler@gmx.de>
 L:	linux-wireless@vger.kernel.org
 W:	http://linuxwireless.org/en/developers/Documentation/mac80211/RateControl/PID
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless.git
 S:	Maintained
 F:	net/mac80211/rc80211_pid*
 
@@ -4359,7 +4364,7 @@ P:	LinuxTV.org Project
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 Q:	http://patchwork.kernel.org/project/linux-media/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	Documentation/dvb/
 F:	Documentation/video4linux/
@@ -4416,6 +4421,13 @@ T:	git git://git.monstr.eu/linux-2.6-microblaze.git
 S:	Supported
 F:	arch/microblaze/
 
+MICROCHANNEL ARCHITECTURE (MCA)
+M:	James Bottomley <James.Bottomley@HansenPartnership.com>
+S:	Maintained
+F:	Documentation/mca.txt
+F:	drivers/mca/
+F:	include/linux/mca*
+
 MICROTEK X6 SCANNER
 M:	Oliver Neukum <oliver@neukum.name>
 S:	Maintained
@@ -4431,14 +4443,6 @@ S:	Supported
 F:	Documentation/mips/
 F:	arch/mips/
 
-MISCELLANEOUS MCA-SUPPORT
-M:	James Bottomley <James.Bottomley@HansenPartnership.com>
-S:	Maintained
-F:	Documentation/ia64/mca.txt
-F:	Documentation/mca.txt
-F:	drivers/mca/
-F:	include/linux/mca*
-
 MODULE SUPPORT
 M:	Rusty Russell <rusty@rustcorp.com.au>
 S:	Maintained
@@ -4646,7 +4650,7 @@ M:	James Morris <jmorris@namei.org>
 M:	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
 M:	Patrick McHardy <kaber@trash.net>
 L:	netdev@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
 S:	Maintained
 F:	net/ipv4/
 F:	net/ipv6/
@@ -4662,7 +4666,7 @@ NETWORKING [WIRELESS]
 M:	"John W. Linville" <linville@tuxdriver.com>
 L:	linux-wireless@vger.kernel.org
 Q:	http://patchwork.kernel.org/project/linux-wireless/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless.git
 S:	Maintained
 F:	net/mac80211/
 F:	net/rfkill/
@@ -4675,8 +4679,8 @@ F:	drivers/net/wireless/
 NETWORKING DRIVERS
 L:	netdev@vger.kernel.org
 W:	http://www.linuxfoundation.org/en/Net
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
 S:	Odd Fixes
 F:	drivers/net/
 F:	include/linux/if_*
@@ -4892,7 +4896,7 @@ F:	drivers/char/pcmcia/cm4040_cs.*
 OMNIVISION OV7670 SENSOR DRIVER
 M:	Jonathan Corbet <corbet@lwn.net>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	drivers/media/video/ov7670.c
 
@@ -5067,7 +5071,7 @@ M:	Helge Deller <deller@gmx.de>
 L:	linux-parisc@vger.kernel.org
 W:	http://www.parisc-linux.org/
 Q:	http://patchwork.kernel.org/project/linux-parisc/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git
 S:	Maintained
 F:	arch/parisc/
 F:	drivers/parisc/
@@ -5123,7 +5127,7 @@ PCI SUBSYSTEM
 M:	Bjorn Helgaas <bhelgaas@google.com>
 L:	linux-pci@vger.kernel.org
 Q:	http://patchwork.kernel.org/project/linux-pci/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci.git
 S:	Supported
 F:	Documentation/PCI/
 F:	drivers/pci/
@@ -5408,7 +5412,7 @@ M:	Mike Isely <isely@pobox.com>
 L:	pvrusb2@isely.net	(subscribers-only)
 L:	linux-media@vger.kernel.org
 W:	http://www.isely.net/pvrusb2/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	Documentation/video4linux/README.pvrusb2
 F:	drivers/media/video/pvrusb2/
@@ -5574,7 +5578,7 @@ RCUTORTURE MODULE
 M:	Josh Triplett <josh@freedesktop.org>
 M:	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 S:	Supported
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
 F:	Documentation/RCU/torture.txt
 F:	kernel/rcutorture.c
 
@@ -5599,7 +5603,7 @@ M:	Dipankar Sarma <dipankar@in.ibm.com>
 M:	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 W:	http://www.rdrop.com/users/paulmck/rclock/
 S:	Supported
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
 F:	Documentation/RCU/
 F:	include/linux/rcu*
 F:	include/linux/srcu*
@@ -5753,7 +5757,7 @@ F:	drivers/mmc/host/s3cmci.*
 SAA7146 VIDEO4LINUX-2 DRIVER
 M:	Michael Hunold <michael@mihu.de>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.mihu.de/linux/saa7146
 S:	Maintained
 F:	drivers/media/common/saa7146*
@@ -6176,7 +6180,7 @@ F:	arch/ia64/sn/
 SOC-CAMERA V4L2 SUBSYSTEM
 M:	Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 S:	Maintained
 F:	include/media/v4l2*
 F:	drivers/media/video/v4l2*
@@ -6248,8 +6252,8 @@ SPARC + UltraSPARC (sparc/sparc64)
 M:	"David S. Miller" <davem@davemloft.net>
 L:	sparclinux@vger.kernel.org
 Q:	http://patchwork.ozlabs.org/project/sparclinux/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next.git
 S:	Maintained
 F:	arch/sparc/
 F:	drivers/sbus/
@@ -6257,8 +6261,8 @@ F:	drivers/sbus/
 SPARC SERIAL DRIVERS
 M:	"David S. Miller" <davem@davemloft.net>
 L:	sparclinux@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next.git
 S:	Maintained
 F:	include/linux/sunserialcore.h
 F:	drivers/tty/serial/suncore.c
@@ -6563,7 +6567,7 @@ L:	linux-scsi@vger.kernel.org
 L:	target-devel@vger.kernel.org
 L:	http://groups.google.com/group/linux-iscsi-target-dev
 W:	http://www.linux-iscsi.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core-2.6.git master
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core.git master
 S:	Supported
 F:	drivers/target/
 F:	include/target/
@@ -6754,7 +6758,7 @@ K:	^Subject:.*(?i)trivial
 TTY LAYER
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 S:	Supported
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
 F:	drivers/tty/
 F:	drivers/tty/serial/serial_core.c
 F:	include/linux/serial_core.h
@@ -6922,7 +6926,7 @@ USB ET61X[12]51 DRIVER
 M:	Luca Risolia <luca.risolia@studio.unibo.it>
 L:	linux-usb@vger.kernel.org
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.linux-projects.org
 S:	Maintained
 F:	drivers/media/video/et61x251/
@@ -7078,7 +7082,7 @@ USB SN9C1xx DRIVER
 M:	Luca Risolia <luca.risolia@studio.unibo.it>
 L:	linux-usb@vger.kernel.org
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.linux-projects.org
 S:	Maintained
 F:	Documentation/video4linux/sn9c102.txt
@@ -7088,7 +7092,7 @@ USB SUBSYSTEM
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 L:	linux-usb@vger.kernel.org
 W:	http://www.linux-usb.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
 S:	Supported
 F:	Documentation/usb/
 F:	drivers/net/usb/
@@ -7114,7 +7118,7 @@ USB VIDEO CLASS
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	linux-uvc-devel@lists.berlios.de (subscribers-only)
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.ideasonboard.org/uvc/
 S:	Maintained
 F:	drivers/media/video/uvc/
@@ -7123,7 +7127,7 @@ USB W996[87]CF DRIVER
 M:	Luca Risolia <luca.risolia@studio.unibo.it>
 L:	linux-usb@vger.kernel.org
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://www.linux-projects.org
 S:	Maintained
 F:	Documentation/video4linux/w9968cf.txt
@@ -7152,7 +7156,7 @@ USB ZR364XX DRIVER
 M:	Antoine Jacquet <royale@zerezo.com>
 L:	linux-usb@vger.kernel.org
 L:	linux-media@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
 W:	http://royale.zerezo.com/zr364xx/
 S:	Maintained
 F:	Documentation/video4linux/zr364xx.txt
@@ -7302,7 +7306,7 @@ M:	Liam Girdwood <lrg@ti.com>
 M:	Mark Brown <broonie@opensource.wolfsonmicro.com>
 W:	http://opensource.wolfsonmicro.com/node/15
 W:	http://www.slimlogic.co.uk/?p=48
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/regulator.git
 S:	Supported
 F:	drivers/regulator/
 F:	include/linux/regulator/

arch/Kconfig

@@ -120,6 +120,9 @@ config HAVE_KRETPROBES
 
 config HAVE_OPTPROBES
 	bool
+
+config HAVE_NMI_WATCHDOG
+	bool
 #
 # An arch should select this if it provides all these things:
 #

arch/alpha/include/asm/mman.h

@@ -56,6 +56,10 @@
 #define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
 #define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
+					   overrides the coredump filter bits */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
+
 /* compatibility flags */
 #define MAP_FILE	0
 

arch/arm/include/asm/pgtable-nommu.h

@@ -79,7 +79,6 @@ extern unsigned int kobjsize(const void *objp);
  * No page table caches to initialise.
  */
 #define pgtable_cache_init()	do { } while (0)
-#define io_remap_page_range	remap_page_range
 #define io_remap_pfn_range	remap_pfn_range
 
 

arch/arm/kernel/process.c

@@ -533,8 +533,7 @@ int vectors_user_mapping(void)
 	struct mm_struct *mm = current->mm;
 	return install_special_mapping(mm, 0xffff0000, PAGE_SIZE,
 				       VM_READ | VM_EXEC |
-				       VM_MAYREAD | VM_MAYEXEC |
-				       VM_ALWAYSDUMP | VM_RESERVED,
+				       VM_MAYREAD | VM_MAYEXEC | VM_RESERVED,
 				       NULL);
 }
 

arch/blackfin/Kconfig

@@ -36,6 +36,7 @@ config BLACKFIN
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU if SMP
+	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 
 config GENERIC_CSUM
 	def_bool y

arch/blackfin/include/asm/irq.h

@@ -38,8 +38,4 @@
 
 #include <asm-generic/irq.h>
 
-#ifdef CONFIG_NMI_WATCHDOG
-# define ARCH_HAS_NMI_WATCHDOG
-#endif
-
 #endif				/* _BFIN_IRQ_H_ */

arch/c6x/include/asm/pgtable.h

@@ -73,9 +73,6 @@ extern unsigned long empty_zero_page;
 #define pgtable_cache_init()   do { } while (0)
 #define io_remap_pfn_range      remap_pfn_range
 
-#define io_remap_page_range(vma, vaddr, paddr, size, prot)		\
-		remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
-
 #include <asm-generic/pgtable.h>
 
 #endif /* _ASM_C6X_PGTABLE_H */

arch/hexagon/kernel/signal.c

@@ -192,12 +192,7 @@ static int handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
 	if (rc)
 		return rc;
 
-	spin_lock_irq(&current->sighand->siglock);
-	sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked, sig);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	block_sigmask(ka, sig);
 
 	return 0;
 }
@@ -305,10 +300,7 @@ asmlinkage int sys_rt_sigreturn(void)
 		goto badframe;
 
 	sigdelsetmask(&blocked, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = blocked;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&blocked);
 
 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;

arch/hexagon/kernel/vdso.c

@@ -78,8 +78,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	/* MAYWRITE to allow gdb to COW and set breakpoints. */
 	ret = install_special_mapping(mm, vdso_base, PAGE_SIZE,
 				      VM_READ|VM_EXEC|
-				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				      VM_ALWAYSDUMP,
+				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				      &vdso_page);
 
 	if (ret)

arch/microblaze/include/asm/pgtable.h

@@ -543,8 +543,6 @@ extern unsigned long iopa(unsigned long addr);
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_page_range remap_page_range
-
 /*
  * No page table caches to initialise
  */

arch/mips/include/asm/mman.h

@@ -80,6 +80,10 @@
 #define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
 #define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
+					   overrides the coredump filter bits */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
+
 /* compatibility flags */
 #define MAP_FILE	0
 

arch/mips/kernel/vdso.c

@@ -88,8 +88,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	ret = install_special_mapping(mm, addr, PAGE_SIZE,
 				      VM_READ|VM_EXEC|
-				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				      VM_ALWAYSDUMP,
+				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				      &vdso_page);
 
 	if (ret)

arch/mn10300/Kconfig

@@ -5,6 +5,7 @@ config MN10300
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_ARCH_KGDB
+	select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
 
 config AM33_2
 	def_bool n

arch/mn10300/include/asm/reset-regs.h

@@ -17,10 +17,6 @@
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_MN10300_WD_TIMER
-#define ARCH_HAS_NMI_WATCHDOG		/* See include/linux/nmi.h */
-#endif
-
 /*
  * watchdog timer registers
  */

arch/openrisc/include/asm/pgtable.h

@@ -455,7 +455,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
  * No page table caches to initialise
  */
 #define pgtable_cache_init()		do { } while (0)
-#define io_remap_page_range		remap_page_range
 
 typedef pte_t *pte_addr_t;
 

arch/parisc/include/asm/mman.h

@@ -62,6 +62,10 @@
 #define MADV_HUGEPAGE	67		/* Worth backing with hugepages */
 #define MADV_NOHUGEPAGE	68		/* Not worth backing with hugepages */
 
+#define MADV_DONTDUMP   69		/* Explicity exclude from the core dump,
+					   overrides the coredump filter bits */
+#define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
+
 /* compatibility flags */
 #define MAP_FILE	0
 #define MAP_VARIABLE	0

arch/powerpc/kernel/vdso.c

@@ -263,17 +263,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 * the "data" page of the vDSO or you'll stop getting kernel updates
 	 * and your nice userland gettimeofday will be totally dead.
 	 * It's fine to use that for setting breakpoints in the vDSO code
-	 * pages though
-	 *
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
+	 * pages though.
 	 */
 	rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
 				     VM_READ|VM_EXEC|
-				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				     VM_ALWAYSDUMP,
+				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				     vdso_pagelist);
 	if (rc) {
 		current->mm->context.vdso_base = 0;

arch/s390/kernel/vdso.c

@@ -241,17 +241,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 * on the "data" page of the vDSO or you'll stop getting kernel
 	 * updates and your nice userland gettimeofday will be totally dead.
 	 * It's fine to use that for setting breakpoints in the vDSO code
-	 * pages though
-	 *
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
+	 * pages though.
 	 */
 	rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
 				     VM_READ|VM_EXEC|
-				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				     VM_ALWAYSDUMP,
+				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				     vdso_pagelist);
 	if (rc)
 		current->mm->context.vdso_base = 0;

arch/sh/kernel/vsyscall/vsyscall.c

@@ -73,8 +73,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	ret = install_special_mapping(mm, addr, PAGE_SIZE,
 				      VM_READ | VM_EXEC |
-				      VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC |
-				      VM_ALWAYSDUMP,
+				      VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
 				      syscall_pages);
 	if (unlikely(ret))
 		goto up_fail;

arch/sparc/Kconfig

@@ -29,6 +29,7 @@ config SPARC
 	select GENERIC_IRQ_SHOW
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select GENERIC_PCI_IOMAP
+	select HAVE_NMI_WATCHDOG if SPARC64
 
 config SPARC32
 	def_bool !64BIT

arch/sparc/include/asm/irq_64.h

@@ -95,7 +95,6 @@ void arch_trigger_all_cpu_backtrace(void);
 extern void *hardirq_stack[NR_CPUS];
 extern void *softirq_stack[NR_CPUS];
 #define __ARCH_HAS_DO_SOFTIRQ
-#define ARCH_HAS_NMI_WATCHDOG
 
 #define NO_IRQ		0xffffffff
 

arch/tile/mm/elf.c

@@ -117,17 +117,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 
 	/*
 	 * MAYWRITE to allow gdb to COW and set breakpoints
-	 *
-	 * Make sure the vDSO gets into every core dump.  Dumping its
-	 * contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to
-	 * see what PC values meant.
 	 */
 	vdso_base = VDSO_BASE;
 	retval = install_special_mapping(mm, vdso_base, PAGE_SIZE,
 					 VM_READ|VM_EXEC|
-					 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-					 VM_ALWAYSDUMP,
+					 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 					 vdso_pages);
 
 #ifndef __tilegx__

arch/um/kernel/signal.c

@@ -65,21 +65,10 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 #endif
 		err = setup_signal_stack_si(sp, signr, ka, regs, info, oldset);
 
-	if (err) {
-		spin_lock_irq(&current->sighand->siglock);
-		current->blocked = *oldset;
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
+	if (err)
 		force_sigsegv(signr, current);
-	} else {
-		spin_lock_irq(&current->sighand->siglock);
-		sigorsets(&current->blocked, &current->blocked,
-			  &ka->sa.sa_mask);
-		if (!(ka->sa.sa_flags & SA_NODEFER))
-			sigaddset(&current->blocked, signr);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
-	}
+	else
+		block_sigmask(ka, signr);
 
 	return err;
 }
@@ -162,12 +151,11 @@ int do_signal(void)
  */
 long sys_sigsuspend(int history0, int history1, old_sigset_t mask)
 {
+	sigset_t blocked;
+
 	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
-	current->saved_sigmask = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	siginitset(&blocked, mask);
+	set_current_blocked(&blocked);
 
 	current->state = TASK_INTERRUPTIBLE;
 	schedule();

arch/unicore32/kernel/process.c

@@ -381,7 +381,7 @@ int vectors_user_mapping(void)
 	return install_special_mapping(mm, 0xffff0000, PAGE_SIZE,
 				       VM_READ | VM_EXEC |
 				       VM_MAYREAD | VM_MAYEXEC |
-				       VM_ALWAYSDUMP | VM_RESERVED,
+				       VM_RESERVED,
 				       NULL);
 }
 

arch/x86/kernel/cpu/perf_event.c

@@ -643,14 +643,14 @@ static bool __perf_sched_find_counter(struct perf_sched *sched)
 	/* Prefer fixed purpose counters */
 	if (x86_pmu.num_counters_fixed) {
 		idx = X86_PMC_IDX_FIXED;
-		for_each_set_bit_cont(idx, c->idxmsk, X86_PMC_IDX_MAX) {
+		for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_MAX) {
 			if (!__test_and_set_bit(idx, sched->state.used))
 				goto done;
 		}
 	}
 	/* Grab the first unused counter starting with idx */
 	idx = sched->state.counter;
-	for_each_set_bit_cont(idx, c->idxmsk, X86_PMC_IDX_FIXED) {
+	for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_FIXED) {
 		if (!__test_and_set_bit(idx, sched->state.used))
 			goto done;
 	}

arch/x86/kernel/irqinit.c

@@ -306,10 +306,10 @@ void __init native_init_IRQ(void)
 	 * us. (some of these will be overridden and become
 	 * 'special' SMP interrupts)
 	 */
-	for (i = FIRST_EXTERNAL_VECTOR; i < NR_VECTORS; i++) {
+	i = FIRST_EXTERNAL_VECTOR;
+	for_each_clear_bit_from(i, used_vectors, NR_VECTORS) {
 		/* IA32_SYSCALL_VECTOR could be used in trap_init already. */
-		if (!test_bit(i, used_vectors))
-			set_intr_gate(i, interrupt[i-FIRST_EXTERNAL_VECTOR]);
+		set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
 	}
 
 	if (!acpi_ioapic && !of_ioapic)

arch/x86/um/mem_32.c

@@ -23,14 +23,6 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
 	gate_vma.vm_page_prot = __P101;
 
-	/*
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
-	 */
-	gate_vma.vm_flags |= VM_ALWAYSDUMP;
-
 	return 0;
 }
 __initcall(gate_vma_init);

arch/x86/um/vdso/vma.c

@@ -64,8 +64,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	err = install_special_mapping(mm, um_vdso_addr, PAGE_SIZE,
 		VM_READ|VM_EXEC|
-		VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-		VM_ALWAYSDUMP,
+		VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 		vdsop);
 
 	up_write(&mm->mmap_sem);

arch/x86/vdso/vdso32-setup.c

@@ -250,13 +250,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
 	gate_vma.vm_page_prot = __P101;
-	/*
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
-	 */
-	gate_vma.vm_flags |= VM_ALWAYSDUMP;
+
 	return 0;
 }
 
@@ -343,17 +337,10 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	if (compat_uses_vma || !compat) {
 		/*
 		 * MAYWRITE to allow gdb to COW and set breakpoints
-		 *
-		 * Make sure the vDSO gets into every core dump.
-		 * Dumping its contents makes post-mortem fully
-		 * interpretable later without matching up the same
-		 * kernel and hardware config to see what PC values
-		 * meant.
 		 */
 		ret = install_special_mapping(mm, addr, PAGE_SIZE,
 					      VM_READ|VM_EXEC|
-					      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-					      VM_ALWAYSDUMP,
+					      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 					      vdso32_pages);
 
 		if (ret)

arch/x86/vdso/vma.c

@@ -124,8 +124,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	ret = install_special_mapping(mm, addr, vdso_size,
 				      VM_READ|VM_EXEC|
-				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-				      VM_ALWAYSDUMP,
+				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				      vdso_pages);
 	if (ret) {
 		current->mm->context.vdso = NULL;

arch/xtensa/include/asm/mman.h

@@ -86,6 +86,10 @@
 #define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
 #define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
+					   overrides the coredump filter bits */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
+
 /* compatibility flags */
 #define MAP_FILE	0
 

crypto/Kconfig

@@ -308,6 +308,7 @@ comment "Digest"
 config CRYPTO_CRC32C
 	tristate "CRC32c CRC algorithm"
 	select CRYPTO_HASH
+	select CRC32
 	help
 	  Castagnoli, et al Cyclic Redundancy-Check Algorithm.  Used
 	  by iSCSI for header and data digests and by others.

crypto/crc32c.c

@@ -40,6 +40,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/crc32.h>
 
 #define CHKSUM_BLOCK_SIZE	1
 #define CHKSUM_DIGEST_SIZE	4
@@ -52,95 +53,6 @@ struct chksum_desc_ctx {
 	u32 crc;
 };
 
-/*
- * This is the CRC-32C table
- * Generated with:
- * width = 32 bits
- * poly = 0x1EDC6F41
- * reflect input bytes = true
- * reflect output bytes = true
- */
-
-static const u32 crc32c_table[256] = {
-	0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L,
-	0xC79A971FL, 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL,
-	0x8AD958CFL, 0x78B2DBCCL, 0x6BE22838L, 0x9989AB3BL,
-	0x4D43CFD0L, 0xBF284CD3L, 0xAC78BF27L, 0x5E133C24L,
-	0x105EC76FL, 0xE235446CL, 0xF165B798L, 0x030E349BL,
-	0xD7C45070L, 0x25AFD373L, 0x36FF2087L, 0xC494A384L,
-	0x9A879FA0L, 0x68EC1CA3L, 0x7BBCEF57L, 0x89D76C54L,
-	0x5D1D08BFL, 0xAF768BBCL, 0xBC267848L, 0x4E4DFB4BL,
-	0x20BD8EDEL, 0xD2D60DDDL, 0xC186FE29L, 0x33ED7D2AL,
-	0xE72719C1L, 0x154C9AC2L, 0x061C6936L, 0xF477EA35L,
-	0xAA64D611L, 0x580F5512L, 0x4B5FA6E6L, 0xB93425E5L,
-	0x6DFE410EL, 0x9F95C20DL, 0x8CC531F9L, 0x7EAEB2FAL,
-	0x30E349B1L, 0xC288CAB2L, 0xD1D83946L, 0x23B3BA45L,
-	0xF779DEAEL, 0x05125DADL, 0x1642AE59L, 0xE4292D5AL,
-	0xBA3A117EL, 0x4851927DL, 0x5B016189L, 0xA96AE28AL,
-	0x7DA08661L, 0x8FCB0562L, 0x9C9BF696L, 0x6EF07595L,
-	0x417B1DBCL, 0xB3109EBFL, 0xA0406D4BL, 0x522BEE48L,
-	0x86E18AA3L, 0x748A09A0L, 0x67DAFA54L, 0x95B17957L,
-	0xCBA24573L, 0x39C9C670L, 0x2A993584L, 0xD8F2B687L,
-	0x0C38D26CL, 0xFE53516FL, 0xED03A29BL, 0x1F682198L,
-	0x5125DAD3L, 0xA34E59D0L, 0xB01EAA24L, 0x42752927L,
-	0x96BF4DCCL, 0x64D4CECFL, 0x77843D3BL, 0x85EFBE38L,
-	0xDBFC821CL, 0x2997011FL, 0x3AC7F2EBL, 0xC8AC71E8L,
-	0x1C661503L, 0xEE0D9600L, 0xFD5D65F4L, 0x0F36E6F7L,
-	0x61C69362L, 0x93AD1061L, 0x80FDE395L, 0x72966096L,
-	0xA65C047DL, 0x5437877EL, 0x4767748AL, 0xB50CF789L,
-	0xEB1FCBADL, 0x197448AEL, 0x0A24BB5AL, 0xF84F3859L,
-	0x2C855CB2L, 0xDEEEDFB1L, 0xCDBE2C45L, 0x3FD5AF46L,
-	0x7198540DL, 0x83F3D70EL, 0x90A324FAL, 0x62C8A7F9L,
-	0xB602C312L, 0x44694011L, 0x5739B3E5L, 0xA55230E6L,
-	0xFB410CC2L, 0x092A8FC1L, 0x1A7A7C35L, 0xE811FF36L,
-	0x3CDB9BDDL, 0xCEB018DEL, 0xDDE0EB2AL, 0x2F8B6829L,
-	0x82F63B78L, 0x709DB87BL, 0x63CD4B8FL, 0x91A6C88CL,
-	0x456CAC67L, 0xB7072F64L, 0xA457DC90L, 0x563C5F93L,
-	0x082F63B7L, 0xFA44E0B4L, 0xE9141340L, 0x1B7F9043L,
-	0xCFB5F4A8L, 0x3DDE77ABL, 0x2E8E845FL, 0xDCE5075CL,
-	0x92A8FC17L, 0x60C37F14L, 0x73938CE0L, 0x81F80FE3L,
-	0x55326B08L, 0xA759E80BL, 0xB4091BFFL, 0x466298FCL,
-	0x1871A4D8L, 0xEA1A27DBL, 0xF94AD42FL, 0x0B21572CL,
-	0xDFEB33C7L, 0x2D80B0C4L, 0x3ED04330L, 0xCCBBC033L,
-	0xA24BB5A6L, 0x502036A5L, 0x4370C551L, 0xB11B4652L,
-	0x65D122B9L, 0x97BAA1BAL, 0x84EA524EL, 0x7681D14DL,
-	0x2892ED69L, 0xDAF96E6AL, 0xC9A99D9EL, 0x3BC21E9DL,
-	0xEF087A76L, 0x1D63F975L, 0x0E330A81L, 0xFC588982L,
-	0xB21572C9L, 0x407EF1CAL, 0x532E023EL, 0xA145813DL,
-	0x758FE5D6L, 0x87E466D5L, 0x94B49521L, 0x66DF1622L,
-	0x38CC2A06L, 0xCAA7A905L, 0xD9F75AF1L, 0x2B9CD9F2L,
-	0xFF56BD19L, 0x0D3D3E1AL, 0x1E6DCDEEL, 0xEC064EEDL,
-	0xC38D26C4L, 0x31E6A5C7L, 0x22B65633L, 0xD0DDD530L,
-	0x0417B1DBL, 0xF67C32D8L, 0xE52CC12CL, 0x1747422FL,
-	0x49547E0BL, 0xBB3FFD08L, 0xA86F0EFCL, 0x5A048DFFL,
-	0x8ECEE914L, 0x7CA56A17L, 0x6FF599E3L, 0x9D9E1AE0L,
-	0xD3D3E1ABL, 0x21B862A8L, 0x32E8915CL, 0xC083125FL,
-	0x144976B4L, 0xE622F5B7L, 0xF5720643L, 0x07198540L,
-	0x590AB964L, 0xAB613A67L, 0xB831C993L, 0x4A5A4A90L,
-	0x9E902E7BL, 0x6CFBAD78L, 0x7FAB5E8CL, 0x8DC0DD8FL,
-	0xE330A81AL, 0x115B2B19L, 0x020BD8EDL, 0xF0605BEEL,
-	0x24AA3F05L, 0xD6C1BC06L, 0xC5914FF2L, 0x37FACCF1L,
-	0x69E9F0D5L, 0x9B8273D6L, 0x88D28022L, 0x7AB90321L,
-	0xAE7367CAL, 0x5C18E4C9L, 0x4F48173DL, 0xBD23943EL,
-	0xF36E6F75L, 0x0105EC76L, 0x12551F82L, 0xE03E9C81L,
-	0x34F4F86AL, 0xC69F7B69L, 0xD5CF889DL, 0x27A40B9EL,
-	0x79B737BAL, 0x8BDCB4B9L, 0x988C474DL, 0x6AE7C44EL,
-	0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, 0xAD7D5351L
-};
-
-/*
- * Steps through buffer one byte at at time, calculates reflected
- * crc using table.
- */
-
-static u32 crc32c(u32 crc, const u8 *data, unsigned int length)
-{
-	while (length--)
-		crc = crc32c_table[(crc ^ *data++) & 0xFFL] ^ (crc >> 8);
-
-	return crc;
-}
-
 /*
  * Steps through buffer one byte at at time, calculates reflected
  * crc using table.
@@ -179,7 +91,7 @@ static int chksum_update(struct shash_desc *desc, const u8 *data,
 {
 	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
 
-	ctx->crc = crc32c(ctx->crc, data, length);
+	ctx->crc = __crc32c_le(ctx->crc, data, length);
 	return 0;
 }
 
@@ -193,7 +105,7 @@ static int chksum_final(struct shash_desc *desc, u8 *out)
 
 static int __chksum_finup(u32 *crcp, const u8 *data, unsigned int len, u8 *out)
 {
-	*(__le32 *)out = ~cpu_to_le32(crc32c(*crcp, data, len));
+	*(__le32 *)out = ~cpu_to_le32(__crc32c_le(*crcp, data, len));
 	return 0;
 }
 

drivers/base/regmap/regcache-lzo.c

@@ -341,7 +341,7 @@ static int regcache_lzo_sync(struct regmap *map, unsigned int min,
 
 	lzo_blocks = map->cache;
 	i = min;
-	for_each_set_bit_cont(i, lzo_blocks[0]->sync_bmp,
+	for_each_set_bit_from(i, lzo_blocks[0]->sync_bmp,
 			      lzo_blocks[0]->sync_bmp_nbits) {
 		if (i > max)
 			continue;

drivers/block/drbd/drbd_nl.c

@@ -179,7 +179,7 @@ int drbd_khelper(struct drbd_conf *mdev, char *cmd)
 	dev_info(DEV, "helper command: %s %s %s\n", usermode_helper, cmd, mb);
 
 	drbd_bcast_ev_helper(mdev, cmd);
-	ret = call_usermodehelper(usermode_helper, argv, envp, 1);
+	ret = call_usermodehelper(usermode_helper, argv, envp, UMH_WAIT_PROC);
 	if (ret)
 		dev_warn(DEV, "helper command: %s %s %s exit code %u (0x%x)\n",
 				usermode_helper, cmd, mb,

drivers/leds/Kconfig

@@ -17,7 +17,7 @@ menuconfig NEW_LEDS
 if NEW_LEDS
 
 config LEDS_CLASS
-	bool "LED Class Support"
+	tristate "LED Class Support"
 	help
 	  This option enables the led sysfs class in /sys/class/leds.  You'll
 	  need this to do anything useful with LEDs.  If unsure, say N.
@@ -234,6 +234,14 @@ config LEDS_PCA955X
 	  LED driver chips accessed via the I2C bus.  Supported
 	  devices include PCA9550, PCA9551, PCA9552, and PCA9553.
 
+config LEDS_PCA9633
+	tristate "LED support for PCA9633 I2C chip"
+	depends on LEDS_CLASS
+	depends on I2C
+	help
+	  This option enables support for LEDs connected to the PCA9633
+	  LED driver chip accessed via the I2C bus.
+
 config LEDS_WM831X_STATUS
 	tristate "LED support for status LEDs on WM831x PMICs"
 	depends on LEDS_CLASS

drivers/leds/Makefile

@@ -30,6 +30,7 @@ obj-$(CONFIG_LEDS_HP6XX)		+= leds-hp6xx.o
 obj-$(CONFIG_LEDS_OT200)		+= leds-ot200.o
 obj-$(CONFIG_LEDS_FSG)			+= leds-fsg.o
 obj-$(CONFIG_LEDS_PCA955X)		+= leds-pca955x.o
+obj-$(CONFIG_LEDS_PCA9633)		+= leds-pca9633.o
 obj-$(CONFIG_LEDS_DA903X)		+= leds-da903x.o
 obj-$(CONFIG_LEDS_WM831X_STATUS)	+= leds-wm831x-status.o
 obj-$(CONFIG_LEDS_WM8350)		+= leds-wm8350.o

drivers/leds/led-class.c

@@ -110,50 +110,6 @@ static void led_timer_function(unsigned long data)
 	mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
 }
 
-static void led_stop_software_blink(struct led_classdev *led_cdev)
-{
-	/* deactivate previous settings */
-	del_timer_sync(&led_cdev->blink_timer);
-	led_cdev->blink_delay_on = 0;
-	led_cdev->blink_delay_off = 0;
-}
-
-static void led_set_software_blink(struct led_classdev *led_cdev,
-				   unsigned long delay_on,
-				   unsigned long delay_off)
-{
-	int current_brightness;
-
-	current_brightness = led_get_brightness(led_cdev);
-	if (current_brightness)
-		led_cdev->blink_brightness = current_brightness;
-	if (!led_cdev->blink_brightness)
-		led_cdev->blink_brightness = led_cdev->max_brightness;
-
-	if (led_get_trigger_data(led_cdev) &&
-	    delay_on == led_cdev->blink_delay_on &&
-	    delay_off == led_cdev->blink_delay_off)
-		return;
-
-	led_stop_software_blink(led_cdev);
-
-	led_cdev->blink_delay_on = delay_on;
-	led_cdev->blink_delay_off = delay_off;
-
-	/* never on - don't blink */
-	if (!delay_on)
-		return;
-
-	/* never off - just set to brightness */
-	if (!delay_off) {
-		led_set_brightness(led_cdev, led_cdev->blink_brightness);
-		return;
-	}
-
-	mod_timer(&led_cdev->blink_timer, jiffies + 1);
-}
-
-
 /**
  * led_classdev_suspend - suspend an led_classdev.
  * @led_cdev: the led_classdev to suspend.
@@ -262,32 +218,6 @@ void led_classdev_unregister(struct led_classdev *led_cdev)
 }
 EXPORT_SYMBOL_GPL(led_classdev_unregister);
 
-void led_blink_set(struct led_classdev *led_cdev,
-		   unsigned long *delay_on,
-		   unsigned long *delay_off)
-{
-	del_timer_sync(&led_cdev->blink_timer);
-
-	if (led_cdev->blink_set &&
-	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))
-		return;
-
-	/* blink with 1 Hz as default if nothing specified */
-	if (!*delay_on && !*delay_off)
-		*delay_on = *delay_off = 500;
-
-	led_set_software_blink(led_cdev, *delay_on, *delay_off);
-}
-EXPORT_SYMBOL(led_blink_set);
-
-void led_brightness_set(struct led_classdev *led_cdev,
-			enum led_brightness brightness)
-{
-	led_stop_software_blink(led_cdev);
-	led_cdev->brightness_set(led_cdev, brightness);
-}
-EXPORT_SYMBOL(led_brightness_set);
-
 static int __init leds_init(void)
 {
 	leds_class = class_create(THIS_MODULE, "leds");

drivers/leds/led-core.c

@@ -23,3 +23,73 @@ EXPORT_SYMBOL_GPL(leds_list_lock);
 
 LIST_HEAD(leds_list);
 EXPORT_SYMBOL_GPL(leds_list);
+
+static void led_stop_software_blink(struct led_classdev *led_cdev)
+{
+	/* deactivate previous settings */
+	del_timer_sync(&led_cdev->blink_timer);
+	led_cdev->blink_delay_on = 0;
+	led_cdev->blink_delay_off = 0;
+}
+
+static void led_set_software_blink(struct led_classdev *led_cdev,
+				   unsigned long delay_on,
+				   unsigned long delay_off)
+{
+	int current_brightness;
+
+	current_brightness = led_get_brightness(led_cdev);
+	if (current_brightness)
+		led_cdev->blink_brightness = current_brightness;
+	if (!led_cdev->blink_brightness)
+		led_cdev->blink_brightness = led_cdev->max_brightness;
+
+	if (led_get_trigger_data(led_cdev) &&
+	    delay_on == led_cdev->blink_delay_on &&
+	    delay_off == led_cdev->blink_delay_off)
+		return;
+
+	led_stop_software_blink(led_cdev);
+
+	led_cdev->blink_delay_on = delay_on;
+	led_cdev->blink_delay_off = delay_off;
+
+	/* never on - don't blink */
+	if (!delay_on)
+		return;
+
+	/* never off - just set to brightness */
+	if (!delay_off) {
+		led_set_brightness(led_cdev, led_cdev->blink_brightness);
+		return;
+	}
+
+	mod_timer(&led_cdev->blink_timer, jiffies + 1);
+}
+
+
+void led_blink_set(struct led_classdev *led_cdev,
+		   unsigned long *delay_on,
+		   unsigned long *delay_off)
+{
+	del_timer_sync(&led_cdev->blink_timer);
+
+	if (led_cdev->blink_set &&
+	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))
+		return;
+
+	/* blink with 1 Hz as default if nothing specified */
+	if (!*delay_on && !*delay_off)
+		*delay_on = *delay_off = 500;
+
+	led_set_software_blink(led_cdev, *delay_on, *delay_off);
+}
+EXPORT_SYMBOL(led_blink_set);
+
+void led_brightness_set(struct led_classdev *led_cdev,
+			enum led_brightness brightness)
+{
+	led_stop_software_blink(led_cdev);
+	led_cdev->brightness_set(led_cdev, brightness);
+}
+EXPORT_SYMBOL(led_brightness_set);

drivers/leds/leds-gpio.c

@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
@@ -20,8 +21,6 @@
 #include <linux/workqueue.h>
 #include <linux/module.h>
 
-#include <asm/gpio.h>
-
 struct gpio_led_data {
 	struct led_classdev cdev;
 	unsigned gpio;

drivers/leds/leds-lm3530.c

@@ -26,7 +26,6 @@
 #define LM3530_GEN_CONFIG		0x10
 #define LM3530_ALS_CONFIG		0x20
 #define LM3530_BRT_RAMP_RATE		0x30
-#define LM3530_ALS_ZONE_REG		0x40
 #define LM3530_ALS_IMP_SELECT		0x41
 #define LM3530_BRT_CTRL_REG		0xA0
 #define LM3530_ALS_ZB0_REG		0x60
@@ -38,7 +37,7 @@
 #define LM3530_ALS_Z2T_REG		0x72
 #define LM3530_ALS_Z3T_REG		0x73
 #define LM3530_ALS_Z4T_REG		0x74
-#define LM3530_REG_MAX			15
+#define LM3530_REG_MAX			14
 
 /* General Control Register */
 #define LM3530_EN_I2C_SHIFT		(0)
@@ -80,6 +79,9 @@
 #define LM3530_DEF_ZT_3			(0x33)
 #define LM3530_DEF_ZT_4			(0x19)
 
+/* 7 bits are used for the brightness : LM3530_BRT_CTRL_REG */
+#define MAX_BRIGHTNESS			(127)
+
 struct lm3530_mode_map {
 	const char *mode;
 	enum lm3530_mode mode_val;
@@ -115,7 +117,6 @@ static const u8 lm3530_reg[LM3530_REG_MAX] = {
 	LM3530_GEN_CONFIG,
 	LM3530_ALS_CONFIG,
 	LM3530_BRT_RAMP_RATE,
-	LM3530_ALS_ZONE_REG,
 	LM3530_ALS_IMP_SELECT,
 	LM3530_BRT_CTRL_REG,
 	LM3530_ALS_ZB0_REG,
@@ -152,27 +153,35 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
 	u8 reg_val[LM3530_REG_MAX];
 	u8 zones[LM3530_ALS_ZB_MAX];
 	u32 als_vmin, als_vmax, als_vstep;
-	struct lm3530_platform_data *pltfm = drvdata->pdata;
+	struct lm3530_platform_data *pdata = drvdata->pdata;
 	struct i2c_client *client = drvdata->client;
+	struct lm3530_pwm_data *pwm = &pdata->pwm_data;
 
-	gen_config = (pltfm->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) |
-			((pltfm->max_current & 7) << LM3530_MAX_CURR_SHIFT);
+	gen_config = (pdata->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) |
+			((pdata->max_current & 7) << LM3530_MAX_CURR_SHIFT);
 
-	if (drvdata->mode == LM3530_BL_MODE_MANUAL ||
-	    drvdata->mode == LM3530_BL_MODE_ALS)
-		gen_config |= (LM3530_ENABLE_I2C);
+	switch (drvdata->mode) {
+	case LM3530_BL_MODE_MANUAL:
+	case LM3530_BL_MODE_ALS:
+		gen_config |= LM3530_ENABLE_I2C;
+		break;
+	case LM3530_BL_MODE_PWM:
+		gen_config |= LM3530_ENABLE_PWM | LM3530_ENABLE_PWM_SIMPLE |
+			      (pdata->pwm_pol_hi << LM3530_PWM_POL_SHIFT);
+		break;
+	}
 
 	if (drvdata->mode == LM3530_BL_MODE_ALS) {
-		if (pltfm->als_vmax == 0) {
-			pltfm->als_vmin = 0;
-			pltfm->als_vmax = LM3530_ALS_WINDOW_mV;
+		if (pdata->als_vmax == 0) {
+			pdata->als_vmin = 0;
+			pdata->als_vmax = LM3530_ALS_WINDOW_mV;
 		}
 
-		als_vmin = pltfm->als_vmin;
-		als_vmax = pltfm->als_vmax;
+		als_vmin = pdata->als_vmin;
+		als_vmax = pdata->als_vmax;
 
 		if ((als_vmax - als_vmin) > LM3530_ALS_WINDOW_mV)
-			pltfm->als_vmax = als_vmax =
+			pdata->als_vmax = als_vmax =
 				als_vmin + LM3530_ALS_WINDOW_mV;
 
 		/* n zone boundary makes n+1 zones */
@@ -184,44 +193,41 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
 					/ 1000;
 
 		als_config =
-			(pltfm->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
+			(pdata->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
 			(LM3530_ENABLE_ALS) |
-			(pltfm->als_input_mode << LM3530_ALS_SEL_SHIFT);
+			(pdata->als_input_mode << LM3530_ALS_SEL_SHIFT);
 
 		als_imp_sel =
-			(pltfm->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
-			(pltfm->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
+			(pdata->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
+			(pdata->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
 
 	}
 
-	if (drvdata->mode == LM3530_BL_MODE_PWM)
-		gen_config |= (LM3530_ENABLE_PWM) |
-				(pltfm->pwm_pol_hi << LM3530_PWM_POL_SHIFT) |
-				(LM3530_ENABLE_PWM_SIMPLE);
-
-	brt_ramp = (pltfm->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) |
-			(pltfm->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT);
+	brt_ramp = (pdata->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) |
+			(pdata->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT);
 
 	if (drvdata->brightness)
 		brightness = drvdata->brightness;
 	else
-		brightness = drvdata->brightness = pltfm->brt_val;
+		brightness = drvdata->brightness = pdata->brt_val;
+
+	if (brightness > drvdata->led_dev.max_brightness)
+		brightness = drvdata->led_dev.max_brightness;
 
 	reg_val[0] = gen_config;	/* LM3530_GEN_CONFIG */
 	reg_val[1] = als_config;	/* LM3530_ALS_CONFIG */
 	reg_val[2] = brt_ramp;		/* LM3530_BRT_RAMP_RATE */
-	reg_val[3] = 0x00;		/* LM3530_ALS_ZONE_REG */
-	reg_val[4] = als_imp_sel;	/* LM3530_ALS_IMP_SELECT */
-	reg_val[5] = brightness;	/* LM3530_BRT_CTRL_REG */
-	reg_val[6] = zones[0];		/* LM3530_ALS_ZB0_REG */
-	reg_val[7] = zones[1];		/* LM3530_ALS_ZB1_REG */
-	reg_val[8] = zones[2];		/* LM3530_ALS_ZB2_REG */
-	reg_val[9] = zones[3];		/* LM3530_ALS_ZB3_REG */
-	reg_val[10] = LM3530_DEF_ZT_0;	/* LM3530_ALS_Z0T_REG */
-	reg_val[11] = LM3530_DEF_ZT_1;	/* LM3530_ALS_Z1T_REG */
-	reg_val[12] = LM3530_DEF_ZT_2;	/* LM3530_ALS_Z2T_REG */
-	reg_val[13] = LM3530_DEF_ZT_3;	/* LM3530_ALS_Z3T_REG */
-	reg_val[14] = LM3530_DEF_ZT_4;	/* LM3530_ALS_Z4T_REG */
+	reg_val[3] = als_imp_sel;	/* LM3530_ALS_IMP_SELECT */
+	reg_val[4] = brightness;	/* LM3530_BRT_CTRL_REG */
+	reg_val[5] = zones[0];		/* LM3530_ALS_ZB0_REG */
+	reg_val[6] = zones[1];		/* LM3530_ALS_ZB1_REG */
+	reg_val[7] = zones[2];		/* LM3530_ALS_ZB2_REG */
+	reg_val[8] = zones[3];		/* LM3530_ALS_ZB3_REG */
+	reg_val[9] = LM3530_DEF_ZT_0;	/* LM3530_ALS_Z0T_REG */
+	reg_val[10] = LM3530_DEF_ZT_1;	/* LM3530_ALS_Z1T_REG */
+	reg_val[11] = LM3530_DEF_ZT_2;	/* LM3530_ALS_Z2T_REG */
+	reg_val[12] = LM3530_DEF_ZT_3;	/* LM3530_ALS_Z3T_REG */
+	reg_val[13] = LM3530_DEF_ZT_4;	/* LM3530_ALS_Z4T_REG */
 
 	if (!drvdata->enable) {
 		ret = regulator_enable(drvdata->regulator);
@@ -234,6 +240,15 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
 	}
 
 	for (i = 0; i < LM3530_REG_MAX; i++) {
+		/* do not update brightness register when pwm mode */
+		if (lm3530_reg[i] == LM3530_BRT_CTRL_REG &&
+		    drvdata->mode == LM3530_BL_MODE_PWM) {
+			if (pwm->pwm_set_intensity)
+				pwm->pwm_set_intensity(reg_val[i],
+					drvdata->led_dev.max_brightness);
+			continue;
+		}
+
 		ret = i2c_smbus_write_byte_data(client,
 				lm3530_reg[i], reg_val[i]);
 		if (ret)
@@ -249,6 +264,9 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
 	int err;
 	struct lm3530_data *drvdata =
 	    container_of(led_cdev, struct lm3530_data, led_dev);
+	struct lm3530_platform_data *pdata = drvdata->pdata;
+	struct lm3530_pwm_data *pwm = &pdata->pwm_data;
+	u8 max_brightness = led_cdev->max_brightness;
 
 	switch (drvdata->mode) {
 	case LM3530_BL_MODE_MANUAL:
@@ -264,12 +282,12 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
 
 		/* set the brightness in brightness control register*/
 		err = i2c_smbus_write_byte_data(drvdata->client,
-				LM3530_BRT_CTRL_REG, brt_val / 2);
+				LM3530_BRT_CTRL_REG, brt_val);
 		if (err)
 			dev_err(&drvdata->client->dev,
 				"Unable to set brightness: %d\n", err);
 		else
-			drvdata->brightness = brt_val / 2;
+			drvdata->brightness = brt_val;
 
 		if (brt_val == 0) {
 			err = regulator_disable(drvdata->regulator);
@@ -282,6 +300,8 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
 	case LM3530_BL_MODE_ALS:
 		break;
 	case LM3530_BL_MODE_PWM:
+		if (pwm->pwm_set_intensity)
+			pwm->pwm_set_intensity(brt_val, max_brightness);
 		break;
 	default:
 		break;
@@ -291,11 +311,11 @@ static void lm3530_brightness_set(struct led_classdev *led_cdev,
 static ssize_t lm3530_mode_get(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = container_of(
-					dev->parent, struct i2c_client, dev);
-	struct lm3530_data *drvdata = i2c_get_clientdata(client);
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct lm3530_data *drvdata;
 	int i, len = 0;
 
+	drvdata = container_of(led_cdev, struct lm3530_data, led_dev);
 	for (i = 0; i < ARRAY_SIZE(mode_map); i++)
 		if (drvdata->mode == mode_map[i].mode_val)
 			len += sprintf(buf + len, "[%s] ", mode_map[i].mode);
@@ -310,26 +330,26 @@ static ssize_t lm3530_mode_get(struct device *dev,
 static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
 				   *attr, const char *buf, size_t size)
 {
-	int err;
-	struct i2c_client *client = container_of(
-					dev->parent, struct i2c_client, dev);
-	struct lm3530_data *drvdata = i2c_get_clientdata(client);
-	int mode;
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct lm3530_data *drvdata;
+	struct lm3530_pwm_data *pwm;
+	u8 max_brightness;
+	int mode, err;
 
+	drvdata = container_of(led_cdev, struct lm3530_data, led_dev);
+	pwm = &drvdata->pdata->pwm_data;
+	max_brightness = led_cdev->max_brightness;
 	mode = lm3530_get_mode_from_str(buf);
 	if (mode < 0) {
 		dev_err(dev, "Invalid mode\n");
 		return -EINVAL;
 	}
 
-	if (mode == LM3530_BL_MODE_MANUAL)
-		drvdata->mode = LM3530_BL_MODE_MANUAL;
-	else if (mode == LM3530_BL_MODE_ALS)
-		drvdata->mode = LM3530_BL_MODE_ALS;
-	else if (mode == LM3530_BL_MODE_PWM) {
-		dev_err(dev, "PWM mode not supported\n");
-		return -EINVAL;
-	}
+	drvdata->mode = mode;
+
+	/* set pwm to low if unnecessary */
+	if (mode != LM3530_BL_MODE_PWM && pwm->pwm_set_intensity)
+		pwm->pwm_set_intensity(0, max_brightness);
 
 	err = lm3530_init_registers(drvdata);
 	if (err) {
@@ -380,6 +400,7 @@ static int __devinit lm3530_probe(struct i2c_client *client,
 	drvdata->enable = false;
 	drvdata->led_dev.name = LM3530_LED_DEV;
 	drvdata->led_dev.brightness_set = lm3530_brightness_set;
+	drvdata->led_dev.max_brightness = MAX_BRIGHTNESS;
 
 	i2c_set_clientdata(client, drvdata);
 

drivers/leds/leds-lp5521.c

@@ -81,18 +81,10 @@
 #define LP5521_MASTER_ENABLE		0x40	/* Chip master enable */
 #define LP5521_LOGARITHMIC_PWM		0x80	/* Logarithmic PWM adjustment */
 #define LP5521_EXEC_RUN			0x2A
-
-/* Bits in CONFIG register */
-#define LP5521_PWM_HF			0x40	/* PWM: 0 = 256Hz, 1 = 558Hz */
-#define LP5521_PWRSAVE_EN		0x20	/* 1 = Power save mode */
-#define LP5521_CP_MODE_OFF		0	/* Charge pump (CP) off */
-#define LP5521_CP_MODE_BYPASS		8	/* CP forced to bypass mode */
-#define LP5521_CP_MODE_1X5		0x10	/* CP forced to 1.5x mode */
-#define LP5521_CP_MODE_AUTO		0x18	/* Automatic mode selection */
-#define LP5521_R_TO_BATT		4	/* R out: 0 = CP, 1 = Vbat */
-#define LP5521_CLK_SRC_EXT		0	/* Ext-clk source (CLK_32K) */
-#define LP5521_CLK_INT			1	/* Internal clock */
-#define LP5521_CLK_AUTO			2	/* Automatic clock selection */
+#define LP5521_ENABLE_DEFAULT	\
+	(LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM)
+#define LP5521_ENABLE_RUN_PROGRAM	\
+	(LP5521_ENABLE_DEFAULT | LP5521_EXEC_RUN)
 
 /* Status */
 #define LP5521_EXT_CLK_USED		0x08
@@ -100,6 +92,9 @@
 /* default R channel current register value */
 #define LP5521_REG_R_CURR_DEFAULT	0xAF
 
+/* Pattern Mode */
+#define PATTERN_OFF	0
+
 struct lp5521_engine {
 	int		id;
 	u8		mode;
@@ -241,15 +236,16 @@ static int lp5521_configure(struct i2c_client *client)
 {
 	struct lp5521_chip *chip = i2c_get_clientdata(client);
 	int ret;
+	u8 cfg;
 
 	lp5521_init_engine(chip);
 
 	/* Set all PWMs to direct control mode */
-	ret = lp5521_write(client, LP5521_REG_OP_MODE, 0x3F);
+	ret = lp5521_write(client, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT);
 
-	/* Enable auto-powersave, set charge pump to auto, red to battery */
-	ret |= lp5521_write(client, LP5521_REG_CONFIG,
-		LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT);
+	cfg = chip->pdata->update_config ?
+		: (LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT);
+	ret |= lp5521_write(client, LP5521_REG_CONFIG, cfg);
 
 	/* Initialize all channels PWM to zero -> leds off */
 	ret |= lp5521_write(client, LP5521_REG_R_PWM, 0);
@@ -258,8 +254,7 @@ static int lp5521_configure(struct i2c_client *client)
 
 	/* Set engines are set to run state when OP_MODE enables engines */
 	ret |= lp5521_write(client, LP5521_REG_ENABLE,
-			LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM |
-			LP5521_EXEC_RUN);
+			LP5521_ENABLE_RUN_PROGRAM);
 	/* enable takes 500us. 1 - 2 ms leaves some margin */
 	usleep_range(1000, 2000);
 
@@ -310,8 +305,7 @@ static int lp5521_detect(struct i2c_client *client)
 	int ret;
 	u8 buf;
 
-	ret = lp5521_write(client, LP5521_REG_ENABLE,
-			LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM);
+	ret = lp5521_write(client, LP5521_REG_ENABLE, LP5521_ENABLE_DEFAULT);
 	if (ret)
 		return ret;
 	/* enable takes 500us. 1 - 2 ms leaves some margin */
@@ -319,7 +313,7 @@ static int lp5521_detect(struct i2c_client *client)
 	ret = lp5521_read(client, LP5521_REG_ENABLE, &buf);
 	if (ret)
 		return ret;
-	if (buf != (LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM))
+	if (buf != LP5521_ENABLE_DEFAULT)
 		return -ENODEV;
 
 	return 0;
@@ -504,7 +498,7 @@ static ssize_t store_current(struct device *dev,
 	ssize_t ret;
 	unsigned long curr;
 
-	if (strict_strtoul(buf, 0, &curr))
+	if (kstrtoul(buf, 0, &curr))
 		return -EINVAL;
 
 	if (curr > led->max_current)
@@ -536,6 +530,97 @@ static ssize_t lp5521_selftest(struct device *dev,
 	return sprintf(buf, "%s\n", ret ? "FAIL" : "OK");
 }
 
+static void lp5521_clear_program_memory(struct i2c_client *cl)
+{
+	int i;
+	u8 rgb_mem[] = {
+		LP5521_REG_R_PROG_MEM,
+		LP5521_REG_G_PROG_MEM,
+		LP5521_REG_B_PROG_MEM,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(rgb_mem); i++) {
+		lp5521_write(cl, rgb_mem[i], 0);
+		lp5521_write(cl, rgb_mem[i] + 1, 0);
+	}
+}
+
+static void lp5521_write_program_memory(struct i2c_client *cl,
+				u8 base, u8 *rgb, int size)
+{
+	int i;
+
+	if (!rgb || size <= 0)
+		return;
+
+	for (i = 0; i < size; i++)
+		lp5521_write(cl, base + i, *(rgb + i));
+
+	lp5521_write(cl, base + i, 0);
+	lp5521_write(cl, base + i + 1, 0);
+}
+
+static inline struct lp5521_led_pattern *lp5521_get_pattern
+					(struct lp5521_chip *chip, u8 offset)
+{
+	struct lp5521_led_pattern *ptn;
+	ptn = chip->pdata->patterns + (offset - 1);
+	return ptn;
+}
+
+static void lp5521_run_led_pattern(int mode, struct lp5521_chip *chip)
+{
+	struct lp5521_led_pattern *ptn;
+	struct i2c_client *cl = chip->client;
+	int num_patterns = chip->pdata->num_patterns;
+
+	if (mode > num_patterns || !(chip->pdata->patterns))
+		return;
+
+	if (mode == PATTERN_OFF) {
+		lp5521_write(cl, LP5521_REG_ENABLE, LP5521_ENABLE_DEFAULT);
+		usleep_range(1000, 2000);
+		lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT);
+	} else {
+		ptn = lp5521_get_pattern(chip, mode);
+		if (!ptn)
+			return;
+
+		lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_LOAD);
+		usleep_range(1000, 2000);
+
+		lp5521_clear_program_memory(cl);
+
+		lp5521_write_program_memory(cl, LP5521_REG_R_PROG_MEM,
+					ptn->r, ptn->size_r);
+		lp5521_write_program_memory(cl, LP5521_REG_G_PROG_MEM,
+					ptn->g, ptn->size_g);
+		lp5521_write_program_memory(cl, LP5521_REG_B_PROG_MEM,
+					ptn->b, ptn->size_b);
+
+		lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_RUN);
+		usleep_range(1000, 2000);
+		lp5521_write(cl, LP5521_REG_ENABLE, LP5521_ENABLE_RUN_PROGRAM);
+	}
+}
+
+static ssize_t store_led_pattern(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t len)
+{
+	struct lp5521_chip *chip = i2c_get_clientdata(to_i2c_client(dev));
+	unsigned long val;
+	int ret;
+
+	ret = strict_strtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	lp5521_run_led_pattern(val, chip);
+
+	return len;
+}
+
 /* led class device attributes */
 static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, show_current, store_current);
 static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL);
@@ -561,6 +646,7 @@ static DEVICE_ATTR(engine1_load, S_IWUSR, NULL, store_engine1_load);
 static DEVICE_ATTR(engine2_load, S_IWUSR, NULL, store_engine2_load);
 static DEVICE_ATTR(engine3_load, S_IWUSR, NULL, store_engine3_load);
 static DEVICE_ATTR(selftest, S_IRUGO, lp5521_selftest, NULL);
+static DEVICE_ATTR(led_pattern, S_IWUSR, NULL, store_led_pattern);
 
 static struct attribute *lp5521_attributes[] = {
 	&dev_attr_engine1_mode.attr,
@@ -570,6 +656,7 @@ static struct attribute *lp5521_attributes[] = {
 	&dev_attr_engine1_load.attr,
 	&dev_attr_engine2_load.attr,
 	&dev_attr_engine3_load.attr,
+	&dev_attr_led_pattern.attr,
 	NULL
 };
 
@@ -620,10 +707,15 @@ static int __devinit lp5521_init_led(struct lp5521_led *led,
 		return -EINVAL;
 	}
 
-	snprintf(name, sizeof(name), "%s:channel%d",
-			pdata->label ?: client->name, chan);
 	led->cdev.brightness_set = lp5521_set_brightness;
-	led->cdev.name = name;
+	if (pdata->led_config[chan].name) {
+		led->cdev.name = pdata->led_config[chan].name;
+	} else {
+		snprintf(name, sizeof(name), "%s:channel%d",
+			pdata->label ?: client->name, chan);
+		led->cdev.name = name;
+	}
+
 	res = led_classdev_register(dev, &led->cdev);
 	if (res < 0) {
 		dev_err(dev, "couldn't register led on channel %d\n", chan);
@@ -692,9 +784,9 @@ static int __devinit lp5521_probe(struct i2c_client *client,
 	 * otherwise further access to the R G B channels in the
 	 * LP5521_REG_ENABLE register will not have any effect - strange!
 	 */
-	lp5521_read(client, LP5521_REG_R_CURRENT, &buf);
+	ret = lp5521_read(client, LP5521_REG_R_CURRENT, &buf);
 	if (buf != LP5521_REG_R_CURR_DEFAULT) {
-		dev_err(&client->dev, "error in reseting chip\n");
+		dev_err(&client->dev, "error in resetting chip\n");
 		goto fail2;
 	}
 	usleep_range(10000, 20000);
@@ -767,6 +859,7 @@ static int __devexit lp5521_remove(struct i2c_client *client)
 	struct lp5521_chip *chip = i2c_get_clientdata(client);
 	int i;
 
+	lp5521_run_led_pattern(PATTERN_OFF, chip);
 	lp5521_unregister_sysfs(client);
 
 	for (i = 0; i < chip->num_leds; i++) {

drivers/leds/leds-lp5523.c

@@ -152,7 +152,7 @@ static inline struct lp5523_chip *led_to_lp5523(struct lp5523_led *led)
 
 static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
 static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
-static int lp5523_load_program(struct lp5523_engine *engine, u8 *pattern);
+static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
 
 static void lp5523_led_brightness_work(struct work_struct *work);
 
@@ -196,7 +196,7 @@ static int lp5523_configure(struct i2c_client *client)
 	u8 status;
 
 	/* one pattern per engine setting led mux start and stop addresses */
-	u8 pattern[][LP5523_PROGRAM_LENGTH] =  {
+	static const u8 pattern[][LP5523_PROGRAM_LENGTH] =  {
 		{ 0x9c, 0x30, 0x9c, 0xb0, 0x9d, 0x80, 0xd8, 0x00, 0},
 		{ 0x9c, 0x40, 0x9c, 0xc0, 0x9d, 0x80, 0xd8, 0x00, 0},
 		{ 0x9c, 0x50, 0x9c, 0xd0, 0x9d, 0x80, 0xd8, 0x00, 0},
@@ -301,7 +301,7 @@ static int lp5523_load_mux(struct lp5523_engine *engine, u16 mux)
 	return ret;
 }
 
-static int lp5523_load_program(struct lp5523_engine *engine, u8 *pattern)
+static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern)
 {
 	struct lp5523_chip *chip = engine_to_lp5523(engine);
 	struct i2c_client *client = chip->client;

drivers/leds/leds-pca9633.c

@@ -0,0 +1,193 @@
+/*
+ * Copyright 2011 bct electronic GmbH
+ *
+ * Author: Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * Based on leds-pca955x.c
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62)
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+
+/* LED select registers determine the source that drives LED outputs */
+#define PCA9633_LED_OFF		0x0	/* LED driver off */
+#define PCA9633_LED_ON		0x1	/* LED driver on */
+#define PCA9633_LED_PWM		0x2	/* Controlled through PWM */
+#define PCA9633_LED_GRP_PWM	0x3	/* Controlled through PWM/GRPPWM */
+
+#define PCA9633_MODE1		0x00
+#define PCA9633_MODE2		0x01
+#define PCA9633_PWM_BASE	0x02
+#define PCA9633_LEDOUT		0x08
+
+static const struct i2c_device_id pca9633_id[] = {
+	{ "pca9633", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pca9633_id);
+
+struct pca9633_led {
+	struct i2c_client *client;
+	struct work_struct work;
+	enum led_brightness brightness;
+	struct led_classdev led_cdev;
+	int led_num; /* 0 .. 3 potentially */
+	char name[32];
+};
+
+static void pca9633_led_work(struct work_struct *work)
+{
+	struct pca9633_led *pca9633 = container_of(work,
+		struct pca9633_led, work);
+	u8 ledout = i2c_smbus_read_byte_data(pca9633->client, PCA9633_LEDOUT);
+	int shift = 2 * pca9633->led_num;
+	u8 mask = 0x3 << shift;
+
+	switch (pca9633->brightness) {
+	case LED_FULL:
+		i2c_smbus_write_byte_data(pca9633->client, PCA9633_LEDOUT,
+			(ledout & ~mask) | (PCA9633_LED_ON << shift));
+		break;
+	case LED_OFF:
+		i2c_smbus_write_byte_data(pca9633->client, PCA9633_LEDOUT,
+			ledout & ~mask);
+		break;
+	default:
+		i2c_smbus_write_byte_data(pca9633->client,
+			PCA9633_PWM_BASE + pca9633->led_num,
+			pca9633->brightness);
+		i2c_smbus_write_byte_data(pca9633->client, PCA9633_LEDOUT,
+			(ledout & ~mask) | (PCA9633_LED_PWM << shift));
+		break;
+	}
+}
+
+static void pca9633_led_set(struct led_classdev *led_cdev,
+	enum led_brightness value)
+{
+	struct pca9633_led *pca9633;
+
+	pca9633 = container_of(led_cdev, struct pca9633_led, led_cdev);
+
+	pca9633->brightness = value;
+
+	/*
+	 * Must use workqueue for the actual I/O since I2C operations
+	 * can sleep.
+	 */
+	schedule_work(&pca9633->work);
+}
+
+static int __devinit pca9633_probe(struct i2c_client *client,
+					const struct i2c_device_id *id)
+{
+	struct pca9633_led *pca9633;
+	struct led_platform_data *pdata;
+	int i, err;
+
+	pdata = client->dev.platform_data;
+
+	if (pdata) {
+		if (pdata->num_leds <= 0 || pdata->num_leds > 4) {
+			dev_err(&client->dev, "board info must claim at most 4 LEDs");
+			return -EINVAL;
+		}
+	}
+
+	pca9633 = kcalloc(4, sizeof(*pca9633), GFP_KERNEL);
+	if (!pca9633)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, pca9633);
+
+	for (i = 0; i < 4; i++) {
+		pca9633[i].client = client;
+		pca9633[i].led_num = i;
+
+		/* Platform data can specify LED names and default triggers */
+		if (pdata && i < pdata->num_leds) {
+			if (pdata->leds[i].name)
+				snprintf(pca9633[i].name,
+					 sizeof(pca9633[i].name), "pca9633:%s",
+					 pdata->leds[i].name);
+			if (pdata->leds[i].default_trigger)
+				pca9633[i].led_cdev.default_trigger =
+					pdata->leds[i].default_trigger;
+		} else {
+			snprintf(pca9633[i].name, sizeof(pca9633[i].name),
+				 "pca9633:%d", i);
+		}
+
+		pca9633[i].led_cdev.name = pca9633[i].name;
+		pca9633[i].led_cdev.brightness_set = pca9633_led_set;
+
+		INIT_WORK(&pca9633[i].work, pca9633_led_work);
+
+		err = led_classdev_register(&client->dev, &pca9633[i].led_cdev);
+		if (err < 0)
+			goto exit;
+	}
+
+	/* Disable LED all-call address and set normal mode */
+	i2c_smbus_write_byte_data(client, PCA9633_MODE1, 0x00);
+
+	/* Turn off LEDs */
+	i2c_smbus_write_byte_data(client, PCA9633_LEDOUT, 0x00);
+
+	return 0;
+
+exit:
+	while (i--) {
+		led_classdev_unregister(&pca9633[i].led_cdev);
+		cancel_work_sync(&pca9633[i].work);
+	}
+
+	kfree(pca9633);
+
+	return err;
+}
+
+static int __devexit pca9633_remove(struct i2c_client *client)
+{
+	struct pca9633_led *pca9633 = i2c_get_clientdata(client);
+	int i;
+
+	for (i = 0; i < 4; i++) {
+		led_classdev_unregister(&pca9633[i].led_cdev);
+		cancel_work_sync(&pca9633[i].work);
+	}
+
+	kfree(pca9633);
+
+	return 0;
+}
+
+static struct i2c_driver pca9633_driver = {
+	.driver = {
+		.name	= "leds-pca9633",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= pca9633_probe,
+	.remove	= __devexit_p(pca9633_remove),
+	.id_table = pca9633_id,
+};
+
+module_i2c_driver(pca9633_driver);
+
+MODULE_AUTHOR("Peter Meerwald <p.meerwald@bct-electronic.com>");
+MODULE_DESCRIPTION("PCA9633 LED driver");
+MODULE_LICENSE("GPL v2");

drivers/leds/leds-tca6507.c

@@ -687,10 +687,9 @@ static int __devinit tca6507_probe(struct i2c_client *client,
 			NUM_LEDS);
 		return -ENODEV;
 	}
-	err = -ENOMEM;
 	tca = kzalloc(sizeof(*tca), GFP_KERNEL);
 	if (!tca)
-		goto exit;
+		return -ENOMEM;
 
 	tca->client = client;
 	INIT_WORK(&tca->work, tca6507_work);
@@ -724,11 +723,10 @@ static int __devinit tca6507_probe(struct i2c_client *client,
 
 	return 0;
 exit:
-	while (i--)
+	while (i--) {
 		if (tca->leds[i].led_cdev.name)
 			led_classdev_unregister(&tca->leds[i].led_cdev);
-	cancel_work_sync(&tca->work);
-	i2c_set_clientdata(client, NULL);
+	}
 	kfree(tca);
 	return err;
 }
@@ -745,7 +743,6 @@ static int __devexit tca6507_remove(struct i2c_client *client)
 	}
 	tca6507_remove_gpio(tca);
 	cancel_work_sync(&tca->work);
-	i2c_set_clientdata(client, NULL);
 	kfree(tca);
 
 	return 0;

drivers/mtd/chips/cfi_cmdset_0001.c

@@ -2526,12 +2526,10 @@ static void cfi_intelext_restore_locks(struct mtd_info *mtd)
 		if (!region->lockmap)
 			continue;
 
-		for (block = 0; block < region->numblocks; block++) {
+		for_each_clear_bit(block, region->lockmap, region->numblocks) {
 			len = region->erasesize;
 			adr = region->offset + block * len;
-
-			if (!test_bit(block, region->lockmap))
-				cfi_intelext_unlock(mtd, adr, len);
+			cfi_intelext_unlock(mtd, adr, len);
 		}
 	}
 }

drivers/mtd/mtdchar.c

@@ -31,13 +31,13 @@
 #include <linux/compat.h>
 #include <linux/mount.h>
 #include <linux/blkpg.h>
+#include <linux/magic.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/map.h>
 
 #include <asm/uaccess.h>
 
-#define MTD_INODE_FS_MAGIC 0x11307854
 static DEFINE_MUTEX(mtd_mutex);
 static struct vfsmount *mtd_inode_mnt __read_mostly;
 

drivers/rtc/Kconfig

@@ -554,6 +554,13 @@ config RTC_DRV_DS1742
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-ds1742.
 
+config RTC_DRV_DA9052
+	tristate "Dialog DA9052/DA9053 RTC"
+	depends on PMIC_DA9052
+	help
+	  Say y here to support the RTC driver for Dialog Semiconductor
+	  DA9052-BC and DA9053-AA/Bx PMICs.
+
 config RTC_DRV_EFI
 	tristate "EFI RTC"
 	depends on IA64
@@ -1070,4 +1077,14 @@ config RTC_DRV_PUV3
 	  This drive can also be built as a module. If so, the module
 	  will be called rtc-puv3.
 
+config RTC_DRV_LOONGSON1
+	tristate "loongson1 RTC support"
+	depends on MACH_LOONGSON1
+	help
+	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
+	  counter) to be used as a RTC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ls1x.
+
 endif # RTC_CLASS

drivers/rtc/Makefile

@@ -27,6 +27,7 @@ obj-$(CONFIG_RTC_DRV_BQ32K)	+= rtc-bq32k.o
 obj-$(CONFIG_RTC_DRV_BQ4802)	+= rtc-bq4802.o
 obj-$(CONFIG_RTC_DRV_CMOS)	+= rtc-cmos.o
 obj-$(CONFIG_RTC_DRV_COH901331)	+= rtc-coh901331.o
+obj-$(CONFIG_RTC_DRV_DA9052)	+= rtc-da9052.o
 obj-$(CONFIG_RTC_DRV_DAVINCI)	+= rtc-davinci.o
 obj-$(CONFIG_RTC_DRV_DM355EVM)	+= rtc-dm355evm.o
 obj-$(CONFIG_RTC_DRV_VRTC)	+= rtc-mrst.o
@@ -53,6 +54,7 @@ obj-$(CONFIG_RTC_DRV_ISL1208)	+= rtc-isl1208.o
 obj-$(CONFIG_RTC_DRV_ISL12022)	+= rtc-isl12022.o
 obj-$(CONFIG_RTC_DRV_JZ4740)	+= rtc-jz4740.o
 obj-$(CONFIG_RTC_DRV_LPC32XX)	+= rtc-lpc32xx.o
+obj-$(CONFIG_RTC_DRV_LOONGSON1)	+= rtc-ls1x.o
 obj-$(CONFIG_RTC_DRV_M41T80)	+= rtc-m41t80.o
 obj-$(CONFIG_RTC_DRV_M41T93)	+= rtc-m41t93.o
 obj-$(CONFIG_RTC_DRV_M41T94)	+= rtc-m41t94.o

drivers/rtc/rtc-at91sam9.c

@@ -335,7 +335,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 
 	/* register irq handler after we know what name we'll use */
 	ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt,
-				IRQF_DISABLED | IRQF_SHARED,
+				IRQF_SHARED,
 				dev_name(&rtc->rtcdev->dev), rtc);
 	if (ret) {
 		dev_dbg(&pdev->dev, "can't share IRQ %d?\n", AT91_ID_SYS);

drivers/rtc/rtc-bq32k.c

@@ -187,17 +187,7 @@ static struct i2c_driver bq32k_driver = {
 	.id_table	= bq32k_id,
 };
 
-static __init int bq32k_init(void)
-{
-	return i2c_add_driver(&bq32k_driver);
-}
-module_init(bq32k_init);
-
-static __exit void bq32k_exit(void)
-{
-	i2c_del_driver(&bq32k_driver);
-}
-module_exit(bq32k_exit);
+module_i2c_driver(bq32k_driver);
 
 MODULE_AUTHOR("Semihalf, Piotr Ziecik <kosmo@semihalf.com>");
 MODULE_DESCRIPTION("TI BQ32000 I2C RTC driver");

drivers/rtc/rtc-cmos.c

@@ -714,7 +714,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 			rtc_cmos_int_handler = cmos_interrupt;
 
 		retval = request_irq(rtc_irq, rtc_cmos_int_handler,
-				IRQF_DISABLED, dev_name(&cmos_rtc.rtc->dev),
+				0, dev_name(&cmos_rtc.rtc->dev),
 				cmos_rtc.rtc);
 		if (retval < 0) {
 			dev_dbg(dev, "IRQ %d is already in use\n", rtc_irq);

drivers/rtc/rtc-coh901331.c

@@ -199,7 +199,7 @@ static int __init coh901331_probe(struct platform_device *pdev)
 	}
 
 	rtap->irq = platform_get_irq(pdev, 0);
-	if (request_irq(rtap->irq, coh901331_interrupt, IRQF_DISABLED,
+	if (request_irq(rtap->irq, coh901331_interrupt, 0,
 			"RTC COH 901 331 Alarm", rtap)) {
 		ret = -EIO;
 		goto out_no_irq;

drivers/rtc/rtc-da9052.c

@@ -0,0 +1,293 @@
+/*
+ * Real time clock driver for DA9052
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: Dajun Dajun Chen <dajun.chen@diasemi.com>
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+
+#define rtc_err(da9052, fmt, ...) \
+		dev_err(da9052->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
+
+struct da9052_rtc {
+	struct rtc_device *rtc;
+	struct da9052 *da9052;
+	int irq;
+};
+
+static int da9052_rtc_enable_alarm(struct da9052 *da9052, bool enable)
+{
+	int ret;
+	if (enable) {
+		ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
+					DA9052_ALARM_Y_ALARM_ON,
+					DA9052_ALARM_Y_ALARM_ON);
+		if (ret != 0)
+			rtc_err(da9052, "Failed to enable ALM: %d\n", ret);
+	} else {
+		ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
+					DA9052_ALARM_Y_ALARM_ON, 0);
+		if (ret != 0)
+			rtc_err(da9052, "Write error: %d\n", ret);
+	}
+	return ret;
+}
+
+static irqreturn_t da9052_rtc_irq(int irq, void *data)
+{
+	struct da9052_rtc *rtc = data;
+	int ret;
+
+	ret = da9052_reg_read(rtc->da9052, DA9052_ALARM_MI_REG);
+	if (ret < 0) {
+		rtc_err(rtc->da9052, "Read error: %d\n", ret);
+		return IRQ_NONE;
+	}
+
+	if (ret & DA9052_ALARMMI_ALARMTYPE) {
+		da9052_rtc_enable_alarm(rtc->da9052, 0);
+		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);
+	} else
+		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_PF);
+
+	return IRQ_HANDLED;
+}
+
+static int da9052_read_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
+{
+	int ret;
+	uint8_t v[5];
+
+	ret = da9052_group_read(da9052, DA9052_ALARM_MI_REG, 5, v);
+	if (ret != 0) {
+		rtc_err(da9052, "Failed to group read ALM: %d\n", ret);
+		return ret;
+	}
+
+	rtc_tm->tm_year = (v[4] & DA9052_RTC_YEAR) + 100;
+	rtc_tm->tm_mon  = (v[3] & DA9052_RTC_MONTH) - 1;
+	rtc_tm->tm_mday = v[2] & DA9052_RTC_DAY;
+	rtc_tm->tm_hour = v[1] & DA9052_RTC_HOUR;
+	rtc_tm->tm_min  = v[0] & DA9052_RTC_MIN;
+
+	ret = rtc_valid_tm(rtc_tm);
+	if (ret != 0)
+		return ret;
+	return ret;
+}
+
+static int da9052_set_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
+{
+	int ret;
+	uint8_t v[3];
+
+	rtc_tm->tm_year -= 100;
+	rtc_tm->tm_mon += 1;
+
+	ret = da9052_reg_update(da9052, DA9052_ALARM_MI_REG,
+				DA9052_RTC_MIN, rtc_tm->tm_min);
+	if (ret != 0) {
+		rtc_err(da9052, "Failed to write ALRM MIN: %d\n", ret);
+		return ret;
+	}
+
+	v[0] = rtc_tm->tm_hour;
+	v[1] = rtc_tm->tm_mday;
+	v[2] = rtc_tm->tm_mon;
+
+	ret = da9052_group_write(da9052, DA9052_ALARM_H_REG, 3, v);
+	if (ret < 0)
+		return ret;
+
+	ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
+				DA9052_RTC_YEAR, rtc_tm->tm_year);
+	if (ret != 0)
+		rtc_err(da9052, "Failed to write ALRM YEAR: %d\n", ret);
+
+	return ret;
+}
+
+static int da9052_rtc_get_alarm_status(struct da9052 *da9052)
+{
+	int ret;
+
+	ret = da9052_reg_read(da9052, DA9052_ALARM_Y_REG);
+	if (ret < 0) {
+		rtc_err(da9052, "Failed to read ALM: %d\n", ret);
+		return ret;
+	}
+	ret &= DA9052_ALARM_Y_ALARM_ON;
+	return (ret > 0) ? 1 : 0;
+}
+
+static int da9052_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
+{
+	struct da9052_rtc *rtc = dev_get_drvdata(dev);
+	uint8_t v[6];
+	int ret;
+
+	ret = da9052_group_read(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
+	if (ret < 0) {
+		rtc_err(rtc->da9052, "Failed to read RTC time : %d\n", ret);
+		return ret;
+	}
+
+	rtc_tm->tm_year = (v[5] & DA9052_RTC_YEAR) + 100;
+	rtc_tm->tm_mon  = (v[4] & DA9052_RTC_MONTH) - 1;
+	rtc_tm->tm_mday = v[3] & DA9052_RTC_DAY;
+	rtc_tm->tm_hour = v[2] & DA9052_RTC_HOUR;
+	rtc_tm->tm_min  = v[1] & DA9052_RTC_MIN;
+	rtc_tm->tm_sec  = v[0] & DA9052_RTC_SEC;
+
+	ret = rtc_valid_tm(rtc_tm);
+	if (ret != 0) {
+		rtc_err(rtc->da9052, "rtc_valid_tm failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int da9052_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct da9052_rtc *rtc;
+	uint8_t v[6];
+
+	rtc = dev_get_drvdata(dev);
+
+	v[0] = tm->tm_sec;
+	v[1] = tm->tm_min;
+	v[2] = tm->tm_hour;
+	v[3] = tm->tm_mday;
+	v[4] = tm->tm_mon + 1;
+	v[5] = tm->tm_year - 100;
+
+	return da9052_group_write(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
+}
+
+static int da9052_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	int ret;
+	struct rtc_time *tm = &alrm->time;
+	struct da9052_rtc *rtc = dev_get_drvdata(dev);
+
+	ret = da9052_read_alarm(rtc->da9052, tm);
+
+	if (ret)
+		return ret;
+
+	alrm->enabled = da9052_rtc_get_alarm_status(rtc->da9052);
+
+	return 0;
+}
+
+static int da9052_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	int ret;
+	struct rtc_time *tm = &alrm->time;
+	struct da9052_rtc *rtc = dev_get_drvdata(dev);
+
+	ret = da9052_rtc_enable_alarm(rtc->da9052, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = da9052_set_alarm(rtc->da9052, tm);
+	if (ret)
+		return ret;
+
+	ret = da9052_rtc_enable_alarm(rtc->da9052, 1);
+
+	return ret;
+}
+
+static int da9052_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+	struct da9052_rtc *rtc = dev_get_drvdata(dev);
+
+	return da9052_rtc_enable_alarm(rtc->da9052, enabled);
+}
+
+static const struct rtc_class_ops da9052_rtc_ops = {
+	.read_time	= da9052_rtc_read_time,
+	.set_time	= da9052_rtc_set_time,
+	.read_alarm	= da9052_rtc_read_alarm,
+	.set_alarm	= da9052_rtc_set_alarm,
+	.alarm_irq_enable = da9052_rtc_alarm_irq_enable,
+};
+
+static int __devinit da9052_rtc_probe(struct platform_device *pdev)
+{
+	struct da9052_rtc *rtc;
+	int ret;
+
+	rtc = devm_kzalloc(&pdev->dev, sizeof(struct da9052_rtc), GFP_KERNEL);
+	if (!rtc)
+		return -ENOMEM;
+
+	rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
+	platform_set_drvdata(pdev, rtc);
+	rtc->irq = platform_get_irq_byname(pdev, "ALM");
+	ret = request_threaded_irq(rtc->irq, NULL, da9052_rtc_irq,
+				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				   "ALM", rtc);
+	if (ret != 0) {
+		rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
+		goto err_mem;
+	}
+
+	rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
+				       &da9052_rtc_ops, THIS_MODULE);
+	if (IS_ERR(rtc->rtc)) {
+		ret = PTR_ERR(rtc->rtc);
+		goto err_free_irq;
+	}
+
+	return 0;
+
+err_free_irq:
+	free_irq(rtc->irq, rtc);
+err_mem:
+	devm_kfree(&pdev->dev, rtc);
+	return ret;
+}
+
+static int __devexit da9052_rtc_remove(struct platform_device *pdev)
+{
+	struct da9052_rtc *rtc = pdev->dev.platform_data;
+
+	rtc_device_unregister(rtc->rtc);
+	free_irq(rtc->irq, rtc);
+	platform_set_drvdata(pdev, NULL);
+	devm_kfree(&pdev->dev, rtc);
+
+	return 0;
+}
+
+static struct platform_driver da9052_rtc_driver = {
+	.probe	= da9052_rtc_probe,
+	.remove	= __devexit_p(da9052_rtc_remove),
+	.driver = {
+		.name	= "da9052-rtc",
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(da9052_rtc_driver);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("RTC driver for Dialog DA9052 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-rtc");

drivers/rtc/rtc-davinci.c

@@ -542,7 +542,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev)
 	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CCTRL);
 
 	ret = request_irq(davinci_rtc->irq, davinci_rtc_interrupt,
-			  IRQF_DISABLED, "davinci_rtc", davinci_rtc);
+			  0, "davinci_rtc", davinci_rtc);
 	if (ret < 0) {
 		dev_err(dev, "unable to register davinci RTC interrupt\n");
 		goto fail4;

drivers/rtc/rtc-ds1305.c

@@ -814,17 +814,7 @@ static struct spi_driver ds1305_driver = {
 	/* REVISIT add suspend/resume */
 };
 
-static int __init ds1305_init(void)
-{
-	return spi_register_driver(&ds1305_driver);
-}
-module_init(ds1305_init);
-
-static void __exit ds1305_exit(void)
-{
-	spi_unregister_driver(&ds1305_driver);
-}
-module_exit(ds1305_exit);
+module_spi_driver(ds1305_driver);
 
 MODULE_DESCRIPTION("RTC driver for DS1305 and DS1306 chips");
 MODULE_LICENSE("GPL");

drivers/rtc/rtc-ds1307.c

@@ -20,7 +20,8 @@
 
 
 
-/* We can't determine type by probing, but if we expect pre-Linux code
+/*
+ * We can't determine type by probing, but if we expect pre-Linux code
  * to have set the chip up as a clock (turning on the oscillator and
  * setting the date and time), Linux can ignore the non-clock features.
  * That's a natural job for a factory or repair bench.
@@ -36,7 +37,8 @@ enum ds_type {
 	m41t00,
 	mcp7941x,
 	rx_8025,
-	// rs5c372 too?  different address...
+	last_ds_type /* always last */
+	/* rs5c372 too?  different address... */
 };
 
 
@@ -58,7 +60,8 @@ enum ds_type {
 #	define DS1337_BIT_CENTURY	0x80	/* in REG_MONTH */
 #define DS1307_REG_YEAR		0x06	/* 00-99 */
 
-/* Other registers (control, status, alarms, trickle charge, NVRAM, etc)
+/*
+ * Other registers (control, status, alarms, trickle charge, NVRAM, etc)
  * start at 7, and they differ a LOT. Only control and status matter for
  * basic RTC date and time functionality; be careful using them.
  */
@@ -102,6 +105,8 @@ enum ds_type {
 struct ds1307 {
 	u8			offset; /* register's offset */
 	u8			regs[11];
+	u16			nvram_offset;
+	struct bin_attribute	*nvram;
 	enum ds_type		type;
 	unsigned long		flags;
 #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
@@ -116,34 +121,35 @@ struct ds1307 {
 };
 
 struct chip_desc {
-	unsigned		nvram56:1;
 	unsigned		alarm:1;
+	u16			nvram_offset;
+	u16			nvram_size;
 };
 
-static const struct chip_desc chips[] = {
-[ds_1307] = {
-	.nvram56	= 1,
-},
-[ds_1337] = {
-	.alarm		= 1,
-},
-[ds_1338] = {
-	.nvram56	= 1,
-},
-[ds_1339] = {
-	.alarm		= 1,
-},
-[ds_1340] = {
-},
-[ds_3231] = {
-	.alarm		= 1,
-},
-[m41t00] = {
-},
-[mcp7941x] = {
-},
-[rx_8025] = {
-}, };
+static const struct chip_desc chips[last_ds_type] = {
+	[ds_1307] = {
+		.nvram_offset	= 8,
+		.nvram_size	= 56,
+	},
+	[ds_1337] = {
+		.alarm		= 1,
+	},
+	[ds_1338] = {
+		.nvram_offset	= 8,
+		.nvram_size	= 56,
+	},
+	[ds_1339] = {
+		.alarm		= 1,
+	},
+	[ds_3231] = {
+		.alarm		= 1,
+	},
+	[mcp7941x] = {
+		/* this is battery backed SRAM */
+		.nvram_offset	= 0x20,
+		.nvram_size	= 0x40,
+	},
+};
 
 static const struct i2c_device_id ds1307_id[] = {
 	{ "ds1307", ds_1307 },
@@ -372,6 +378,11 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 				| DS1340_BIT_CENTURY;
 		break;
 	case mcp7941x:
+		/*
+		 * these bits were cleared when preparing the date/time
+		 * values and need to be set again before writing the
+		 * buffer out to the device.
+		 */
 		buf[DS1307_REG_SECS] |= MCP7941X_BIT_ST;
 		buf[DS1307_REG_WDAY] |= MCP7941X_BIT_VBATEN;
 		break;
@@ -417,7 +428,8 @@ static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 			ds1307->regs[6], ds1307->regs[7],
 			ds1307->regs[8]);
 
-	/* report alarm time (ALARM1); assume 24 hour and day-of-month modes,
+	/*
+	 * report alarm time (ALARM1); assume 24 hour and day-of-month modes,
 	 * and that all four fields are checked matches
 	 */
 	t->time.tm_sec = bcd2bin(ds1307->regs[0] & 0x7f);
@@ -445,7 +457,7 @@ static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 
 static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
-	struct i2c_client       *client = to_i2c_client(dev);
+	struct i2c_client	*client = to_i2c_client(dev);
 	struct ds1307		*ds1307 = i2c_get_clientdata(client);
 	unsigned char		*buf = ds1307->regs;
 	u8			control, status;
@@ -541,8 +553,6 @@ static const struct rtc_class_ops ds13xx_rtc_ops = {
 
 /*----------------------------------------------------------------------*/
 
-#define NVRAM_SIZE	56
-
 static ssize_t
 ds1307_nvram_read(struct file *filp, struct kobject *kobj,
 		struct bin_attribute *attr,
@@ -555,14 +565,15 @@ ds1307_nvram_read(struct file *filp, struct kobject *kobj,
 	client = kobj_to_i2c_client(kobj);
 	ds1307 = i2c_get_clientdata(client);
 
-	if (unlikely(off >= NVRAM_SIZE))
+	if (unlikely(off >= ds1307->nvram->size))
 		return 0;
-	if ((off + count) > NVRAM_SIZE)
-		count = NVRAM_SIZE - off;
+	if ((off + count) > ds1307->nvram->size)
+		count = ds1307->nvram->size - off;
 	if (unlikely(!count))
 		return count;
 
-	result = ds1307->read_block_data(client, 8 + off, count, buf);
+	result = ds1307->read_block_data(client, ds1307->nvram_offset + off,
+								count, buf);
 	if (result < 0)
 		dev_err(&client->dev, "%s error %d\n", "nvram read", result);
 	return result;
@@ -580,14 +591,15 @@ ds1307_nvram_write(struct file *filp, struct kobject *kobj,
 	client = kobj_to_i2c_client(kobj);
 	ds1307 = i2c_get_clientdata(client);
 
-	if (unlikely(off >= NVRAM_SIZE))
+	if (unlikely(off >= ds1307->nvram->size))
 		return -EFBIG;
-	if ((off + count) > NVRAM_SIZE)
-		count = NVRAM_SIZE - off;
+	if ((off + count) > ds1307->nvram->size)
+		count = ds1307->nvram->size - off;
 	if (unlikely(!count))
 		return count;
 
-	result = ds1307->write_block_data(client, 8 + off, count, buf);
+	result = ds1307->write_block_data(client, ds1307->nvram_offset + off,
+								count, buf);
 	if (result < 0) {
 		dev_err(&client->dev, "%s error %d\n", "nvram write", result);
 		return result;
@@ -595,21 +607,8 @@ ds1307_nvram_write(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute nvram = {
-	.attr = {
-		.name	= "nvram",
-		.mode	= S_IRUGO | S_IWUSR,
-	},
-
-	.read	= ds1307_nvram_read,
-	.write	= ds1307_nvram_write,
-	.size	= NVRAM_SIZE,
-};
-
 /*----------------------------------------------------------------------*/
 
-static struct i2c_driver ds1307_driver;
-
 static int __devinit ds1307_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
@@ -630,7 +629,8 @@ static int __devinit ds1307_probe(struct i2c_client *client,
 	    && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
 		return -EIO;
 
-	if (!(ds1307 = kzalloc(sizeof(struct ds1307), GFP_KERNEL)))
+	ds1307 = kzalloc(sizeof(struct ds1307), GFP_KERNEL);
+	if (!ds1307)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, ds1307);
@@ -652,11 +652,6 @@ static int __devinit ds1307_probe(struct i2c_client *client,
 	case ds_1337:
 	case ds_1339:
 	case ds_3231:
-		/* has IRQ? */
-		if (ds1307->client->irq > 0 && chip->alarm) {
-			INIT_WORK(&ds1307->work, ds1307_work);
-			want_irq = true;
-		}
 		/* get registers that the "rtc" read below won't read... */
 		tmp = ds1307->read_block_data(ds1307->client,
 				DS1337_REG_CONTROL, 2, buf);
@@ -670,14 +665,19 @@ static int __devinit ds1307_probe(struct i2c_client *client,
 		if (ds1307->regs[0] & DS1337_BIT_nEOSC)
 			ds1307->regs[0] &= ~DS1337_BIT_nEOSC;
 
-		/* Using IRQ?  Disable the square wave and both alarms.
+		/*
+		 * Using IRQ?  Disable the square wave and both alarms.
 		 * For some variants, be sure alarms can trigger when we're
 		 * running on Vbackup (BBSQI/BBSQW)
 		 */
-		if (want_irq) {
+		if (ds1307->client->irq > 0 && chip->alarm) {
+			INIT_WORK(&ds1307->work, ds1307_work);
+
 			ds1307->regs[0] |= DS1337_BIT_INTCN
 					| bbsqi_bitpos[ds1307->type];
 			ds1307->regs[0] &= ~(DS1337_BIT_A2IE | DS1337_BIT_A1IE);
+
+			want_irq = true;
 		}
 
 		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL,
@@ -772,7 +772,8 @@ read_rtc:
 		goto exit_free;
 	}
 
-	/* minimal sanity checking; some chips (like DS1340) don't
+	/*
+	 * minimal sanity checking; some chips (like DS1340) don't
 	 * specify the extra bits as must-be-zero, but there are
 	 * still a few values that are clearly out-of-range.
 	 */
@@ -836,11 +837,7 @@ read_rtc:
 		}
 
 		break;
-	case rx_8025:
-	case ds_1337:
-	case ds_1339:
-	case ds_1388:
-	case ds_3231:
+	default:
 		break;
 	}
 
@@ -848,7 +845,8 @@ read_rtc:
 	switch (ds1307->type) {
 	case ds_1340:
 	case m41t00:
-		/* NOTE: ignores century bits; fix before deploying
+		/*
+		 * NOTE: ignores century bits; fix before deploying
 		 * systems that will run through year 2100.
 		 */
 		break;
@@ -858,7 +856,8 @@ read_rtc:
 		if (!(tmp & DS1307_BIT_12HR))
 			break;
 
-		/* Be sure we're in 24 hour mode.  Multi-master systems
+		/*
+		 * Be sure we're in 24 hour mode.  Multi-master systems
 		 * take note...
 		 */
 		tmp = bcd2bin(tmp & 0x1f);
@@ -894,16 +893,31 @@ read_rtc:
 		dev_dbg(&client->dev, "got IRQ %d\n", client->irq);
 	}
 
-	if (chip->nvram56) {
-		err = sysfs_create_bin_file(&client->dev.kobj, &nvram);
-		if (err == 0) {
-			set_bit(HAS_NVRAM, &ds1307->flags);
-			dev_info(&client->dev, "56 bytes nvram\n");
+	if (chip->nvram_size) {
+		ds1307->nvram = kzalloc(sizeof(struct bin_attribute),
+							GFP_KERNEL);
+		if (!ds1307->nvram) {
+			err = -ENOMEM;
+			goto exit_nvram;
+		}
+		ds1307->nvram->attr.name = "nvram";
+		ds1307->nvram->attr.mode = S_IRUGO | S_IWUSR;
+		ds1307->nvram->read = ds1307_nvram_read,
+		ds1307->nvram->write = ds1307_nvram_write,
+		ds1307->nvram->size = chip->nvram_size;
+		ds1307->nvram_offset = chip->nvram_offset;
+		err = sysfs_create_bin_file(&client->dev.kobj, ds1307->nvram);
+		if (err) {
+			kfree(ds1307->nvram);
+			goto exit_nvram;
 		}
+		set_bit(HAS_NVRAM, &ds1307->flags);
+		dev_info(&client->dev, "%zu bytes nvram\n", ds1307->nvram->size);
 	}
 
 	return 0;
 
+exit_nvram:
 exit_irq:
 	rtc_device_unregister(ds1307->rtc);
 exit_free:
@@ -913,15 +927,17 @@ exit_free:
 
 static int __devexit ds1307_remove(struct i2c_client *client)
 {
-	struct ds1307		*ds1307 = i2c_get_clientdata(client);
+	struct ds1307 *ds1307 = i2c_get_clientdata(client);
 
 	if (test_and_clear_bit(HAS_ALARM, &ds1307->flags)) {
 		free_irq(client->irq, client);
 		cancel_work_sync(&ds1307->work);
 	}
 
-	if (test_and_clear_bit(HAS_NVRAM, &ds1307->flags))
-		sysfs_remove_bin_file(&client->dev.kobj, &nvram);
+	if (test_and_clear_bit(HAS_NVRAM, &ds1307->flags)) {
+		sysfs_remove_bin_file(&client->dev.kobj, ds1307->nvram);
+		kfree(ds1307->nvram);
+	}
 
 	rtc_device_unregister(ds1307->rtc);
 	kfree(ds1307);
@@ -938,17 +954,7 @@ static struct i2c_driver ds1307_driver = {
 	.id_table	= ds1307_id,
 };
 
-static int __init ds1307_init(void)
-{
-	return i2c_add_driver(&ds1307_driver);
-}
-module_init(ds1307_init);
-
-static void __exit ds1307_exit(void)
-{
-	i2c_del_driver(&ds1307_driver);
-}
-module_exit(ds1307_exit);
+module_i2c_driver(ds1307_driver);
 
 MODULE_DESCRIPTION("RTC driver for DS1307 and similar chips");
 MODULE_LICENSE("GPL");

drivers/rtc/rtc-ds1374.c

@@ -446,18 +446,7 @@ static struct i2c_driver ds1374_driver = {
 	.id_table = ds1374_id,
 };
 
-static int __init ds1374_init(void)
-{
-	return i2c_add_driver(&ds1374_driver);
-}
-
-static void __exit ds1374_exit(void)
-{
-	i2c_del_driver(&ds1374_driver);
-}
-
-module_init(ds1374_init);
-module_exit(ds1374_exit);
+module_i2c_driver(ds1374_driver);
 
 MODULE_AUTHOR("Scott Wood <scottwood@freescale.com>");
 MODULE_DESCRIPTION("Maxim/Dallas DS1374 RTC Driver");

drivers/rtc/rtc-ds1390.c

@@ -175,17 +175,7 @@ static struct spi_driver ds1390_driver = {
 	.remove = __devexit_p(ds1390_remove),
 };
 
-static __init int ds1390_init(void)
-{
-	return spi_register_driver(&ds1390_driver);
-}
-module_init(ds1390_init);
-
-static __exit void ds1390_exit(void)
-{
-	spi_unregister_driver(&ds1390_driver);
-}
-module_exit(ds1390_exit);
+module_spi_driver(ds1390_driver);
 
 MODULE_DESCRIPTION("Dallas/Maxim DS1390/93/94 SPI RTC driver");
 MODULE_AUTHOR("Mark Jackson <mpfj@mimc.co.uk>");

drivers/rtc/rtc-ds1511.c

@@ -532,7 +532,7 @@ ds1511_rtc_probe(struct platform_device *pdev)
 	if (pdata->irq > 0) {
 		rtc_read(RTC_CMD1);
 		if (devm_request_irq(&pdev->dev, pdata->irq, ds1511_interrupt,
-			IRQF_DISABLED | IRQF_SHARED, pdev->name, pdev) < 0) {
+			IRQF_SHARED, pdev->name, pdev) < 0) {
 
 			dev_warn(&pdev->dev, "interrupt not available.\n");
 			pdata->irq = 0;

drivers/rtc/rtc-ds1553.c

@@ -320,7 +320,7 @@ static int __devinit ds1553_rtc_probe(struct platform_device *pdev)
 		writeb(0, ioaddr + RTC_INTERRUPTS);
 		if (devm_request_irq(&pdev->dev, pdata->irq,
 				ds1553_rtc_interrupt,
-				IRQF_DISABLED, pdev->name, pdev) < 0) {
+				0, pdev->name, pdev) < 0) {
 			dev_warn(&pdev->dev, "interrupt not available.\n");
 			pdata->irq = 0;
 		}

drivers/rtc/rtc-ds1672.c

@@ -202,20 +202,9 @@ static struct i2c_driver ds1672_driver = {
 	.id_table = ds1672_id,
 };
 
-static int __init ds1672_init(void)
-{
-	return i2c_add_driver(&ds1672_driver);
-}
-
-static void __exit ds1672_exit(void)
-{
-	i2c_del_driver(&ds1672_driver);
-}
+module_i2c_driver(ds1672_driver);
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
 MODULE_DESCRIPTION("Dallas/Maxim DS1672 timekeeper driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(ds1672_init);
-module_exit(ds1672_exit);

drivers/rtc/rtc-ds3232.c

@@ -473,18 +473,7 @@ static struct i2c_driver ds3232_driver = {
 	.id_table = ds3232_id,
 };
 
-static int __init ds3232_init(void)
-{
-	return i2c_add_driver(&ds3232_driver);
-}
-
-static void __exit ds3232_exit(void)
-{
-	i2c_del_driver(&ds3232_driver);
-}
-
-module_init(ds3232_init);
-module_exit(ds3232_exit);
+module_i2c_driver(ds3232_driver);
 
 MODULE_AUTHOR("Srikanth Srinivasan <srikanth.srinivasan@freescale.com>");
 MODULE_DESCRIPTION("Maxim/Dallas DS3232 RTC Driver");

drivers/rtc/rtc-ds3234.c

@@ -173,17 +173,7 @@ static struct spi_driver ds3234_driver = {
 	.remove = __devexit_p(ds3234_remove),
 };
 
-static __init int ds3234_init(void)
-{
-	return spi_register_driver(&ds3234_driver);
-}
-module_init(ds3234_init);
-
-static __exit void ds3234_exit(void)
-{
-	spi_unregister_driver(&ds3234_driver);
-}
-module_exit(ds3234_exit);
+module_spi_driver(ds3234_driver);
 
 MODULE_DESCRIPTION("DS3234 SPI RTC driver");
 MODULE_AUTHOR("Dennis Aberilla <denzzzhome@yahoo.com>");

drivers/rtc/rtc-em3027.c

@@ -144,19 +144,8 @@ static struct i2c_driver em3027_driver = {
 	.id_table = em3027_id,
 };
 
-static int __init em3027_init(void)
-{
-	return i2c_add_driver(&em3027_driver);
-}
-
-static void __exit em3027_exit(void)
-{
-	i2c_del_driver(&em3027_driver);
-}
+module_i2c_driver(em3027_driver);
 
 MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
 MODULE_DESCRIPTION("EM Microelectronic EM3027 RTC driver");
 MODULE_LICENSE("GPL");
-
-module_init(em3027_init);
-module_exit(em3027_exit);

drivers/rtc/rtc-fm3130.c

@@ -565,17 +565,7 @@ static struct i2c_driver fm3130_driver = {
 	.id_table	= fm3130_id,
 };
 
-static int __init fm3130_init(void)
-{
-	return i2c_add_driver(&fm3130_driver);
-}
-module_init(fm3130_init);
-
-static void __exit fm3130_exit(void)
-{
-	i2c_del_driver(&fm3130_driver);
-}
-module_exit(fm3130_exit);
+module_i2c_driver(fm3130_driver);
 
 MODULE_DESCRIPTION("RTC driver for FM3130");
 MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>");

drivers/rtc/rtc-isl12022.c

@@ -309,18 +309,7 @@ static struct i2c_driver isl12022_driver = {
 	.id_table	= isl12022_id,
 };
 
-static int __init isl12022_init(void)
-{
-	return i2c_add_driver(&isl12022_driver);
-}
-
-static void __exit isl12022_exit(void)
-{
-	i2c_del_driver(&isl12022_driver);
-}
-
-module_init(isl12022_init);
-module_exit(isl12022_exit);
+module_i2c_driver(isl12022_driver);
 
 MODULE_AUTHOR("roman.fietze@telemotive.de");
 MODULE_DESCRIPTION("ISL 12022 RTC driver");

drivers/rtc/rtc-isl1208.c

@@ -710,22 +710,9 @@ static struct i2c_driver isl1208_driver = {
 	.id_table = isl1208_id,
 };
 
-static int __init
-isl1208_init(void)
-{
-	return i2c_add_driver(&isl1208_driver);
-}
-
-static void __exit
-isl1208_exit(void)
-{
-	i2c_del_driver(&isl1208_driver);
-}
+module_i2c_driver(isl1208_driver);
 
 MODULE_AUTHOR("Herbert Valerio Riedel <hvr@gnu.org>");
 MODULE_DESCRIPTION("Intersil ISL1208 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(isl1208_init);
-module_exit(isl1208_exit);

drivers/rtc/rtc-lpc32xx.c

@@ -287,7 +287,7 @@ static int __devinit lpc32xx_rtc_probe(struct platform_device *pdev)
 	if (rtc->irq >= 0) {
 		if (devm_request_irq(&pdev->dev, rtc->irq,
 				     lpc32xx_rtc_alarm_interrupt,
-				     IRQF_DISABLED, pdev->name, rtc) < 0) {
+				     0, pdev->name, rtc) < 0) {
 			dev_warn(&pdev->dev, "Can't request interrupt.\n");
 			rtc->irq = -1;
 		} else {

drivers/rtc/rtc-ls1x.c

@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2011 Zhao Zhang <zhzhl555@gmail.com>
+ *
+ * Derived from driver/rtc/rtc-au1xxx.c
+ *
+ * This program 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 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/rtc.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/io.h>
+#include <asm/mach-loongson1/loongson1.h>
+
+#define LS1X_RTC_REG_OFFSET	(LS1X_RTC_BASE + 0x20)
+#define LS1X_RTC_REGS(x) \
+		((void __iomem *)KSEG1ADDR(LS1X_RTC_REG_OFFSET + (x)))
+
+/*RTC programmable counters 0 and 1*/
+#define SYS_COUNTER_CNTRL		(LS1X_RTC_REGS(0x20))
+#define SYS_CNTRL_ERS			(1 << 23)
+#define SYS_CNTRL_RTS			(1 << 20)
+#define SYS_CNTRL_RM2			(1 << 19)
+#define SYS_CNTRL_RM1			(1 << 18)
+#define SYS_CNTRL_RM0			(1 << 17)
+#define SYS_CNTRL_RS			(1 << 16)
+#define SYS_CNTRL_BP			(1 << 14)
+#define SYS_CNTRL_REN			(1 << 13)
+#define SYS_CNTRL_BRT			(1 << 12)
+#define SYS_CNTRL_TEN			(1 << 11)
+#define SYS_CNTRL_BTT			(1 << 10)
+#define SYS_CNTRL_E0			(1 << 8)
+#define SYS_CNTRL_ETS			(1 << 7)
+#define SYS_CNTRL_32S			(1 << 5)
+#define SYS_CNTRL_TTS			(1 << 4)
+#define SYS_CNTRL_TM2			(1 << 3)
+#define SYS_CNTRL_TM1			(1 << 2)
+#define SYS_CNTRL_TM0			(1 << 1)
+#define SYS_CNTRL_TS			(1 << 0)
+
+/* Programmable Counter 0 Registers */
+#define SYS_TOYTRIM		(LS1X_RTC_REGS(0))
+#define SYS_TOYWRITE0		(LS1X_RTC_REGS(4))
+#define SYS_TOYWRITE1		(LS1X_RTC_REGS(8))
+#define SYS_TOYREAD0		(LS1X_RTC_REGS(0xC))
+#define SYS_TOYREAD1		(LS1X_RTC_REGS(0x10))
+#define SYS_TOYMATCH0		(LS1X_RTC_REGS(0x14))
+#define SYS_TOYMATCH1		(LS1X_RTC_REGS(0x18))
+#define SYS_TOYMATCH2		(LS1X_RTC_REGS(0x1C))
+
+/* Programmable Counter 1 Registers */
+#define SYS_RTCTRIM		(LS1X_RTC_REGS(0x40))
+#define SYS_RTCWRITE0		(LS1X_RTC_REGS(0x44))
+#define SYS_RTCREAD0		(LS1X_RTC_REGS(0x48))
+#define SYS_RTCMATCH0		(LS1X_RTC_REGS(0x4C))
+#define SYS_RTCMATCH1		(LS1X_RTC_REGS(0x50))
+#define SYS_RTCMATCH2		(LS1X_RTC_REGS(0x54))
+
+#define LS1X_SEC_OFFSET		(4)
+#define LS1X_MIN_OFFSET		(10)
+#define LS1X_HOUR_OFFSET	(16)
+#define LS1X_DAY_OFFSET		(21)
+#define LS1X_MONTH_OFFSET	(26)
+
+
+#define LS1X_SEC_MASK		(0x3f)
+#define LS1X_MIN_MASK		(0x3f)
+#define LS1X_HOUR_MASK		(0x1f)
+#define LS1X_DAY_MASK		(0x1f)
+#define LS1X_MONTH_MASK		(0x3f)
+#define LS1X_YEAR_MASK		(0xffffffff)
+
+#define ls1x_get_sec(t)		(((t) >> LS1X_SEC_OFFSET) & LS1X_SEC_MASK)
+#define ls1x_get_min(t)		(((t) >> LS1X_MIN_OFFSET) & LS1X_MIN_MASK)
+#define ls1x_get_hour(t)	(((t) >> LS1X_HOUR_OFFSET) & LS1X_HOUR_MASK)
+#define ls1x_get_day(t)		(((t) >> LS1X_DAY_OFFSET) & LS1X_DAY_MASK)
+#define ls1x_get_month(t)	(((t) >> LS1X_MONTH_OFFSET) & LS1X_MONTH_MASK)
+
+#define RTC_CNTR_OK (SYS_CNTRL_E0 | SYS_CNTRL_32S)
+
+static int ls1x_rtc_read_time(struct device *dev, struct rtc_time *rtm)
+{
+	unsigned long v, t;
+
+	v = readl(SYS_TOYREAD0);
+	t = readl(SYS_TOYREAD1);
+
+	memset(rtm, 0, sizeof(struct rtc_time));
+	t  = mktime((t & LS1X_YEAR_MASK), ls1x_get_month(v),
+			ls1x_get_day(v), ls1x_get_hour(v),
+			ls1x_get_min(v), ls1x_get_sec(v));
+	rtc_time_to_tm(t, rtm);
+
+	return rtc_valid_tm(rtm);
+}
+
+static int ls1x_rtc_set_time(struct device *dev, struct  rtc_time *rtm)
+{
+	unsigned long v, t, c;
+	int ret = -ETIMEDOUT;
+
+	v = ((rtm->tm_mon + 1)  << LS1X_MONTH_OFFSET)
+		| (rtm->tm_mday << LS1X_DAY_OFFSET)
+		| (rtm->tm_hour << LS1X_HOUR_OFFSET)
+		| (rtm->tm_min  << LS1X_MIN_OFFSET)
+		| (rtm->tm_sec  << LS1X_SEC_OFFSET);
+
+	writel(v, SYS_TOYWRITE0);
+	c = 0x10000;
+	/* add timeout check counter, for more safe */
+	while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TS) && --c)
+		usleep_range(1000, 3000);
+
+	if (!c) {
+		dev_err(dev, "set time timeout!\n");
+		goto err;
+	}
+
+	t = rtm->tm_year + 1900;
+	writel(t, SYS_TOYWRITE1);
+	c = 0x10000;
+	while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TS) && --c)
+		usleep_range(1000, 3000);
+
+	if (!c) {
+		dev_err(dev, "set time timeout!\n");
+		goto err;
+	}
+	return 0;
+err:
+	return ret;
+}
+
+static struct rtc_class_ops  ls1x_rtc_ops = {
+	.read_time	= ls1x_rtc_read_time,
+	.set_time	= ls1x_rtc_set_time,
+};
+
+static int __devinit ls1x_rtc_probe(struct platform_device *pdev)
+{
+	struct rtc_device *rtcdev;
+	unsigned long v;
+	int ret;
+
+	v = readl(SYS_COUNTER_CNTRL);
+	if (!(v & RTC_CNTR_OK)) {
+		dev_err(&pdev->dev, "rtc counters not working\n");
+		ret = -ENODEV;
+		goto err;
+	}
+	ret = -ETIMEDOUT;
+	/* set to 1 HZ if needed */
+	if (readl(SYS_TOYTRIM) != 32767) {
+		v = 0x100000;
+		while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TTS) && --v)
+			usleep_range(1000, 3000);
+
+		if (!v) {
+			dev_err(&pdev->dev, "time out\n");
+			goto err;
+		}
+		writel(32767, SYS_TOYTRIM);
+	}
+	/* this loop coundn't be endless */
+	while (readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TTS)
+		usleep_range(1000, 3000);
+
+	rtcdev = rtc_device_register("ls1x-rtc", &pdev->dev,
+					&ls1x_rtc_ops , THIS_MODULE);
+	if (IS_ERR(rtcdev)) {
+		ret = PTR_ERR(rtcdev);
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, rtcdev);
+	return 0;
+err:
+	return ret;
+}
+
+static int __devexit ls1x_rtc_remove(struct platform_device *pdev)
+{
+	struct rtc_device *rtcdev = platform_get_drvdata(pdev);
+
+	rtc_device_unregister(rtcdev);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver  ls1x_rtc_driver = {
+	.driver		= {
+		.name	= "ls1x-rtc",
+		.owner	= THIS_MODULE,
+	},
+	.remove		= __devexit_p(ls1x_rtc_remove),
+	.probe		= ls1x_rtc_probe,
+};
+
+module_platform_driver(ls1x_rtc_driver);
+
+MODULE_AUTHOR("zhao zhang <zhzhl555@gmail.com>");
+MODULE_LICENSE("GPL");

drivers/rtc/rtc-m41t80.c

@@ -900,20 +900,9 @@ static struct i2c_driver m41t80_driver = {
 	.id_table = m41t80_id,
 };
 
-static int __init m41t80_rtc_init(void)
-{
-	return i2c_add_driver(&m41t80_driver);
-}
-
-static void __exit m41t80_rtc_exit(void)
-{
-	i2c_del_driver(&m41t80_driver);
-}
+module_i2c_driver(m41t80_driver);
 
 MODULE_AUTHOR("Alexander Bigga <ab@mycable.de>");
 MODULE_DESCRIPTION("ST Microelectronics M41T80 series RTC I2C Client Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(m41t80_rtc_init);
-module_exit(m41t80_rtc_exit);

drivers/rtc/rtc-m41t93.c

@@ -206,17 +206,7 @@ static struct spi_driver m41t93_driver = {
 	.remove = __devexit_p(m41t93_remove),
 };
 
-static __init int m41t93_init(void)
-{
-	return spi_register_driver(&m41t93_driver);
-}
-module_init(m41t93_init);
-
-static __exit void m41t93_exit(void)
-{
-	spi_unregister_driver(&m41t93_driver);
-}
-module_exit(m41t93_exit);
+module_spi_driver(m41t93_driver);
 
 MODULE_AUTHOR("Nikolaus Voss <n.voss@weinmann.de>");
 MODULE_DESCRIPTION("Driver for ST M41T93 SPI RTC");

drivers/rtc/rtc-m41t94.c

@@ -153,19 +153,7 @@ static struct spi_driver m41t94_driver = {
 	.remove = __devexit_p(m41t94_remove),
 };
 
-static __init int m41t94_init(void)
-{
-	return spi_register_driver(&m41t94_driver);
-}
-
-module_init(m41t94_init);
-
-static __exit void m41t94_exit(void)
-{
-	spi_unregister_driver(&m41t94_driver);
-}
-
-module_exit(m41t94_exit);
+module_spi_driver(m41t94_driver);
 
 MODULE_AUTHOR("Kim B. Heino <Kim.Heino@bluegiga.com>");
 MODULE_DESCRIPTION("Driver for ST M41T94 SPI RTC");

drivers/rtc/rtc-max6900.c

@@ -261,20 +261,9 @@ static struct i2c_driver max6900_driver = {
 	.id_table = max6900_id,
 };
 
-static int __init max6900_init(void)
-{
-	return i2c_add_driver(&max6900_driver);
-}
-
-static void __exit max6900_exit(void)
-{
-	i2c_del_driver(&max6900_driver);
-}
+module_i2c_driver(max6900_driver);
 
 MODULE_DESCRIPTION("Maxim MAX6900 RTC driver");
 MODULE_AUTHOR("Dale Farnsworth <dale@farnsworth.org>");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(max6900_init);
-module_exit(max6900_exit);

drivers/rtc/rtc-max6902.c

@@ -160,17 +160,7 @@ static struct spi_driver max6902_driver = {
 	.remove = __devexit_p(max6902_remove),
 };
 
-static __init int max6902_init(void)
-{
-	return spi_register_driver(&max6902_driver);
-}
-module_init(max6902_init);
-
-static __exit void max6902_exit(void)
-{
-	spi_unregister_driver(&max6902_driver);
-}
-module_exit(max6902_exit);
+module_spi_driver(max6902_driver);
 
 MODULE_DESCRIPTION ("max6902 spi RTC driver");
 MODULE_AUTHOR ("Raphael Assenat");

drivers/rtc/rtc-max8925.c

@@ -193,10 +193,17 @@ static int max8925_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	ret = max8925_reg_read(info->rtc, MAX8925_RTC_IRQ_MASK);
 	if (ret < 0)
 		goto out;
-	if ((ret & ALARM0_IRQ) == 0)
-		alrm->enabled = 1;
-	else
+	if (ret & ALARM0_IRQ) {
 		alrm->enabled = 0;
+	} else {
+		ret = max8925_reg_read(info->rtc, MAX8925_ALARM0_CNTL);
+		if (ret < 0)
+			goto out;
+		if (!ret)
+			alrm->enabled = 0;
+		else
+			alrm->enabled = 1;
+	}
 	ret = max8925_reg_read(info->rtc, MAX8925_RTC_STATUS);
 	if (ret < 0)
 		goto out;
@@ -204,6 +211,7 @@ static int max8925_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		alrm->pending = 1;
 	else
 		alrm->pending = 0;
+	return 0;
 out:
 	return ret;
 }
@@ -220,8 +228,11 @@ static int max8925_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	ret = max8925_bulk_write(info->rtc, MAX8925_ALARM0_SEC, TIME_NUM, buf);
 	if (ret < 0)
 		goto out;
-	/* only enable alarm on year/month/day/hour/min/sec */
-	ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x77);
+	if (alrm->enabled)
+		/* only enable alarm on year/month/day/hour/min/sec */
+		ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x77);
+	else
+		ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x0);
 	if (ret < 0)
 		goto out;
 out:

drivers/rtc/rtc-mpc5121.c

@@ -327,7 +327,7 @@ static int __devinit mpc5121_rtc_probe(struct platform_device *op)
 	dev_set_drvdata(&op->dev, rtc);
 
 	rtc->irq = irq_of_parse_and_map(op->dev.of_node, 1);
-	err = request_irq(rtc->irq, mpc5121_rtc_handler, IRQF_DISABLED,
+	err = request_irq(rtc->irq, mpc5121_rtc_handler, 0,
 						"mpc5121-rtc", &op->dev);
 	if (err) {
 		dev_err(&op->dev, "%s: could not request irq: %i\n",
@@ -337,7 +337,7 @@ static int __devinit mpc5121_rtc_probe(struct platform_device *op)
 
 	rtc->irq_periodic = irq_of_parse_and_map(op->dev.of_node, 0);
 	err = request_irq(rtc->irq_periodic, mpc5121_rtc_handler_upd,
-				IRQF_DISABLED, "mpc5121-rtc_upd", &op->dev);
+				0, "mpc5121-rtc_upd", &op->dev);
 	if (err) {
 		dev_err(&op->dev, "%s: could not request irq: %i\n",
 						__func__, rtc->irq_periodic);

drivers/rtc/rtc-mrst.c

@@ -366,7 +366,7 @@ vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
 
 	if (rtc_irq) {
 		retval = request_irq(rtc_irq, mrst_rtc_irq,
-				IRQF_DISABLED, dev_name(&mrst_rtc.rtc->dev),
+				0, dev_name(&mrst_rtc.rtc->dev),
 				mrst_rtc.rtc);
 		if (retval < 0) {
 			dev_dbg(dev, "IRQ %d is already in use, err %d\n",

drivers/rtc/rtc-mv.c

@@ -273,7 +273,7 @@ static int __devinit mv_rtc_probe(struct platform_device *pdev)
 	if (pdata->irq >= 0) {
 		writel(0, pdata->ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS);
 		if (devm_request_irq(&pdev->dev, pdata->irq, mv_rtc_interrupt,
-				     IRQF_DISABLED | IRQF_SHARED,
+				     IRQF_SHARED,
 				     pdev->name, pdata) < 0) {
 			dev_warn(&pdev->dev, "interrupt not available.\n");
 			pdata->irq = -1;

drivers/rtc/rtc-nuc900.c

@@ -269,7 +269,7 @@ static int __devinit nuc900_rtc_probe(struct platform_device *pdev)
 
 	nuc900_rtc->irq_num = platform_get_irq(pdev, 0);
 	if (request_irq(nuc900_rtc->irq_num, nuc900_rtc_interrupt,
-				IRQF_DISABLED, "nuc900rtc", nuc900_rtc)) {
+				0, "nuc900rtc", nuc900_rtc)) {
 		dev_err(&pdev->dev, "NUC900 RTC request irq failed\n");
 		err = -EBUSY;
 		goto fail4;

drivers/rtc/rtc-omap.c

@@ -348,14 +348,14 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
 		rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG);
 
 	/* handle periodic and alarm irqs */
-	if (request_irq(omap_rtc_timer, rtc_irq, IRQF_DISABLED,
+	if (request_irq(omap_rtc_timer, rtc_irq, 0,
 			dev_name(&rtc->dev), rtc)) {
 		pr_debug("%s: RTC timer interrupt IRQ%d already claimed\n",
 			pdev->name, omap_rtc_timer);
 		goto fail1;
 	}
 	if ((omap_rtc_timer != omap_rtc_alarm) &&
-		(request_irq(omap_rtc_alarm, rtc_irq, IRQF_DISABLED,
+		(request_irq(omap_rtc_alarm, rtc_irq, 0,
 			dev_name(&rtc->dev), rtc))) {
 		pr_debug("%s: RTC alarm interrupt IRQ%d already claimed\n",
 			pdev->name, omap_rtc_alarm);

drivers/rtc/rtc-pcf2123.c

@@ -346,20 +346,9 @@ static struct spi_driver pcf2123_driver = {
 	.remove	= __devexit_p(pcf2123_remove),
 };
 
-static int __init pcf2123_init(void)
-{
-	return spi_register_driver(&pcf2123_driver);
-}
-
-static void __exit pcf2123_exit(void)
-{
-	spi_unregister_driver(&pcf2123_driver);
-}
+module_spi_driver(pcf2123_driver);
 
 MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>");
 MODULE_DESCRIPTION("NXP PCF2123 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(pcf2123_init);
-module_exit(pcf2123_exit);

drivers/rtc/rtc-pcf8563.c

@@ -252,20 +252,9 @@ static struct i2c_driver pcf8563_driver = {
 	.id_table	= pcf8563_id,
 };
 
-static int __init pcf8563_init(void)
-{
-	return i2c_add_driver(&pcf8563_driver);
-}
-
-static void __exit pcf8563_exit(void)
-{
-	i2c_del_driver(&pcf8563_driver);
-}
+module_i2c_driver(pcf8563_driver);
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
 MODULE_DESCRIPTION("Philips PCF8563/Epson RTC8564 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(pcf8563_init);
-module_exit(pcf8563_exit);

drivers/rtc/rtc-pcf8583.c

@@ -320,18 +320,7 @@ static struct i2c_driver pcf8583_driver = {
 	.id_table	= pcf8583_id,
 };
 
-static __init int pcf8583_init(void)
-{
-	return i2c_add_driver(&pcf8583_driver);
-}
-
-static __exit void pcf8583_exit(void)
-{
-	i2c_del_driver(&pcf8583_driver);
-}
-
-module_init(pcf8583_init);
-module_exit(pcf8583_exit);
+module_i2c_driver(pcf8583_driver);
 
 MODULE_AUTHOR("Russell King");
 MODULE_DESCRIPTION("PCF8583 I2C RTC driver");

drivers/rtc/rtc-pl030.c

@@ -123,7 +123,7 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
 
 	amba_set_drvdata(dev, rtc);
 
-	ret = request_irq(dev->irq[0], pl030_interrupt, IRQF_DISABLED,
+	ret = request_irq(dev->irq[0], pl030_interrupt, 0,
 			  "rtc-pl030", rtc);
 	if (ret)
 		goto err_irq;

drivers/rtc/rtc-pl031.c

@@ -352,7 +352,7 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
 	}
 
 	if (request_irq(adev->irq[0], pl031_interrupt,
-			IRQF_DISABLED, "rtc-pl031", ldata)) {
+			0, "rtc-pl031", ldata)) {
 		ret = -EIO;
 		goto out_no_irq;
 	}

drivers/rtc/rtc-pm8xxx.c

@@ -520,7 +520,7 @@ static int pm8xxx_rtc_suspend(struct device *dev)
 }
 #endif
 
-SIMPLE_DEV_PM_OPS(pm8xxx_rtc_pm_ops, pm8xxx_rtc_suspend, pm8xxx_rtc_resume);
+static SIMPLE_DEV_PM_OPS(pm8xxx_rtc_pm_ops, pm8xxx_rtc_suspend, pm8xxx_rtc_resume);
 
 static struct platform_driver pm8xxx_rtc_driver = {
 	.probe		= pm8xxx_rtc_probe,

drivers/rtc/rtc-pxa.c

@@ -174,14 +174,14 @@ static int pxa_rtc_open(struct device *dev)
 	struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev);
 	int ret;
 
-	ret = request_irq(pxa_rtc->irq_1Hz, pxa_rtc_irq, IRQF_DISABLED,
+	ret = request_irq(pxa_rtc->irq_1Hz, pxa_rtc_irq, 0,
 			  "rtc 1Hz", dev);
 	if (ret < 0) {
 		dev_err(dev, "can't get irq %i, err %d\n", pxa_rtc->irq_1Hz,
 			ret);
 		goto err_irq_1Hz;
 	}
-	ret = request_irq(pxa_rtc->irq_Alrm, pxa_rtc_irq, IRQF_DISABLED,
+	ret = request_irq(pxa_rtc->irq_Alrm, pxa_rtc_irq, 0,
 			  "rtc Alrm", dev);
 	if (ret < 0) {
 		dev_err(dev, "can't get irq %i, err %d\n", pxa_rtc->irq_Alrm,

drivers/rtc/rtc-r9701.c

@@ -159,17 +159,7 @@ static struct spi_driver r9701_driver = {
 	.remove = __devexit_p(r9701_remove),
 };
 
-static __init int r9701_init(void)
-{
-	return spi_register_driver(&r9701_driver);
-}
-module_init(r9701_init);
-
-static __exit void r9701_exit(void)
-{
-	spi_unregister_driver(&r9701_driver);
-}
-module_exit(r9701_exit);
+module_spi_driver(r9701_driver);
 
 MODULE_DESCRIPTION("r9701 spi RTC driver");
 MODULE_AUTHOR("Magnus Damm <damm@opensource.se>");

drivers/rtc/rtc-rs5c348.c

@@ -235,18 +235,7 @@ static struct spi_driver rs5c348_driver = {
 	.remove	= __devexit_p(rs5c348_remove),
 };
 
-static __init int rs5c348_init(void)
-{
-	return spi_register_driver(&rs5c348_driver);
-}
-
-static __exit void rs5c348_exit(void)
-{
-	spi_unregister_driver(&rs5c348_driver);
-}
-
-module_init(rs5c348_init);
-module_exit(rs5c348_exit);
+module_spi_driver(rs5c348_driver);
 
 MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
 MODULE_DESCRIPTION("Ricoh RS5C348 RTC driver");

drivers/rtc/rtc-rs5c372.c

@@ -689,18 +689,7 @@ static struct i2c_driver rs5c372_driver = {
 	.id_table	= rs5c372_id,
 };
 
-static __init int rs5c372_init(void)
-{
-	return i2c_add_driver(&rs5c372_driver);
-}
-
-static __exit void rs5c372_exit(void)
-{
-	i2c_del_driver(&rs5c372_driver);
-}
-
-module_init(rs5c372_init);
-module_exit(rs5c372_exit);
+module_i2c_driver(rs5c372_driver);
 
 MODULE_AUTHOR(
 		"Pavel Mironchik <pmironchik@optifacio.net>, "

drivers/rtc/rtc-rv3029c2.c

@@ -436,18 +436,7 @@ static struct i2c_driver rv3029c2_driver = {
 	.id_table = rv3029c2_id,
 };
 
-static int __init rv3029c2_init(void)
-{
-	return i2c_add_driver(&rv3029c2_driver);
-}
-
-static void __exit rv3029c2_exit(void)
-{
-	i2c_del_driver(&rv3029c2_driver);
-}
-
-module_init(rv3029c2_init);
-module_exit(rv3029c2_exit);
+module_i2c_driver(rv3029c2_driver);
 
 MODULE_AUTHOR("Gregory Hermant <gregory.hermant@calao-systems.com>");
 MODULE_DESCRIPTION("Micro Crystal RV3029C2 RTC driver");

drivers/rtc/rtc-rx8025.c

@@ -644,19 +644,8 @@ static struct i2c_driver rx8025_driver = {
 	.id_table	= rx8025_id,
 };
 
-static int __init rx8025_init(void)
-{
-	return i2c_add_driver(&rx8025_driver);
-}
-
-static void __exit rx8025_exit(void)
-{
-	i2c_del_driver(&rx8025_driver);
-}
+module_i2c_driver(rx8025_driver);
 
 MODULE_AUTHOR("Wolfgang Grandegger <wg@grandegger.com>");
 MODULE_DESCRIPTION("RX-8025 SA/NB RTC driver");
 MODULE_LICENSE("GPL");
-
-module_init(rx8025_init);
-module_exit(rx8025_exit);

drivers/rtc/rtc-rx8581.c

@@ -276,20 +276,9 @@ static struct i2c_driver rx8581_driver = {
 	.id_table	= rx8581_id,
 };
 
-static int __init rx8581_init(void)
-{
-	return i2c_add_driver(&rx8581_driver);
-}
-
-static void __exit rx8581_exit(void)
-{
-	i2c_del_driver(&rx8581_driver);
-}
+module_i2c_driver(rx8581_driver);
 
 MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>");
 MODULE_DESCRIPTION("Epson RX-8581 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
-
-module_init(rx8581_init);
-module_exit(rx8581_exit);

drivers/rtc/rtc-s35390a.c

@@ -304,19 +304,8 @@ static struct i2c_driver s35390a_driver = {
 	.id_table	= s35390a_id,
 };
 
-static int __init s35390a_rtc_init(void)
-{
-	return i2c_add_driver(&s35390a_driver);
-}
-
-static void __exit s35390a_rtc_exit(void)
-{
-	i2c_del_driver(&s35390a_driver);
-}
+module_i2c_driver(s35390a_driver);
 
 MODULE_AUTHOR("Byron Bradley <byron.bbradley@gmail.com>");
 MODULE_DESCRIPTION("S35390A RTC driver");
 MODULE_LICENSE("GPL");
-
-module_init(s35390a_rtc_init);
-module_exit(s35390a_rtc_exit);