V4L/DVB (11080): au0828: Convert to use v4l2_device/subdev framework

Convert over to using the new subdev framework for the au0828 bridge.  This
includes using the new i2c probing mechanism.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/au0828/au0828-cards.c

@@ -173,6 +173,7 @@ void au0828_card_setup(struct au0828_dev *dev)
 {
 	static u8 eeprom[256];
 	struct tuner_setup tun_setup;
+	struct v4l2_subdev *sd;
 	unsigned int mode_mask = T_ANALOG_TV |
 				 T_DIGITAL_TV;
 
@@ -199,13 +200,21 @@ void au0828_card_setup(struct au0828_dev *dev)
 		/* Load the analog demodulator driver (note this would need to
 		   be abstracted out if we ever need to support a different
 		   demod) */
-		request_module("au8522");
+		sd = v4l2_i2c_new_subdev(&dev->i2c_adap, "au8522", "au8522",
+					 0x8e >> 1);
+		if (sd == NULL) {
+			printk("analog subdev registration failure\n");
+		}
 	}
 
 	/* Setup tuners */
 	if (dev->board.tuner_type != TUNER_ABSENT) {
 		/* Load the tuner module, which does the attach */
-		request_module("tuner");
+		sd = v4l2_i2c_new_subdev(&dev->i2c_adap, "tuner", "tuner",
+					 dev->board.tuner_addr);
+		if (sd == NULL) {
+			printk("analog tuner subdev registration failure\n");
+		}
 
 		tun_setup.mode_mask      = mode_mask;
 		tun_setup.type           = dev->board.tuner_type;

drivers/media/video/au0828/au0828-core.c

@@ -152,6 +152,8 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 	/* I2C */
 	au0828_i2c_unregister(dev);
 
+	v4l2_device_unregister(&dev->v4l2_dev);
+
 	usb_set_intfdata(interface, NULL);
 
 	mutex_lock(&dev->mutex);
@@ -165,7 +167,7 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 static int au0828_usb_probe(struct usb_interface *interface,
 	const struct usb_device_id *id)
 {
-	int ifnum;
+	int ifnum, retval;
 	struct au0828_dev *dev;
 	struct usb_device *usbdev = interface_to_usbdev(interface);
 
@@ -192,6 +194,17 @@ static int au0828_usb_probe(struct usb_interface *interface,
 
 	usb_set_intfdata(interface, dev);
 
+	/* Create the v4l2_device */
+	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s-%03d",
+		 "au0828", 0);
+	retval = v4l2_device_register(&dev->usbdev->dev, &dev->v4l2_dev);
+	if (retval) {
+		printk(KERN_ERR "%s() v4l2_device_register failed\n",
+		       __func__);
+		kfree(dev);
+		return -EIO;
+	}
+
 	/* Power Up the bridge */
 	au0828_write(dev, REG_600, 1 << 4);
 

drivers/media/video/au0828/au0828-i2c.c

@@ -345,7 +345,6 @@ static struct i2c_adapter au0828_i2c_adap_template = {
 	.owner             = THIS_MODULE,
 	.id                = I2C_HW_B_AU0828,
 	.algo              = &au0828_i2c_algo_template,
-	.class             = I2C_CLASS_TV_ANALOG,
 	.client_register   = attach_inform,
 	.client_unregister = detach_inform,
 };
@@ -392,9 +391,9 @@ int au0828_i2c_register(struct au0828_dev *dev)
 	strlcpy(dev->i2c_adap.name, DRIVER_NAME,
 		sizeof(dev->i2c_adap.name));
 
-	dev->i2c_algo.data = dev;
+	dev->i2c_adap.algo = &dev->i2c_algo;
 	dev->i2c_adap.algo_data = dev;
-	i2c_set_adapdata(&dev->i2c_adap, dev);
+	i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev);
 	i2c_add_adapter(&dev->i2c_adap);
 
 	dev->i2c_client.adapter = &dev->i2c_adap;

drivers/media/video/au0828/au0828-video.c

@@ -1021,7 +1021,7 @@ static int vidioc_querycap(struct file *file, void  *priv,
 	memset(cap, 0, sizeof(*cap));
 	strlcpy(cap->driver, "au0828", sizeof(cap->driver));
 	strlcpy(cap->card, dev->board.name, sizeof(cap->card));
-	strlcpy(cap->bus_info, dev->usbdev->dev.bus_id, sizeof(cap->bus_info));
+	strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info));
 
 	cap->version = AU0828_VERSION_CODE;
 

drivers/media/video/au0828/au0828.h

@@ -27,6 +27,7 @@
 /* Analog */
 #include <linux/videodev2.h>
 #include <media/videobuf-vmalloc.h>
+#include <media/v4l2-device.h>
 
 /* DVB */
 #include "demux.h"
@@ -188,7 +189,7 @@ struct au0828_dev {
 
 	/* I2C */
 	struct i2c_adapter		i2c_adap;
-	struct i2c_algo_bit_data	i2c_algo;
+	struct i2c_algorithm		i2c_algo;
 	struct i2c_client		i2c_client;
 	u32 				i2c_rc;
 
@@ -197,6 +198,7 @@ struct au0828_dev {
 
 	/* Analog */
 	struct list_head au0828list;
+	struct v4l2_device v4l2_dev;
 	int users;
 	unsigned int stream_on:1;	/* Locks streams */
 	struct video_device *vdev;