Merge branch 'linux-2.6'

1 files changed, 51 insertions, 89 deletions

diff --git a/drivers/media/video/wm8775.c b/drivers/media/video/wm8775.c
index 9f7e894ef96..869f9e7946b 100644
--- a/drivers/media/video/wm8775.c
+++ b/drivers/media/video/wm8775.c
@@ -34,6 +34,7 @@
 #include <linux/videodev.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("wm8775 driver");
 MODULE_AUTHOR("Ulf Eklund, Hans Verkuil");
@@ -44,6 +45,7 @@ static unsigned short normal_i2c[] = { 0x36 >> 1, I2C_CLIENT_END };
 
 I2C_CLIENT_INSMOD;
 
+
 /* ----------------------------------------------------------------------- */
 
 enum {
@@ -66,18 +68,15 @@ static int wm8775_write(struct i2c_client *client, int reg, u16 val)
 		return -1;
 	}
 
-	for (i = 0; i < 3; i++) {
-		if (i2c_smbus_write_byte_data(client, (reg << 1) |
-					(val >> 8), val & 0xff) == 0) {
+	for (i = 0; i < 3; i++)
+		if (i2c_smbus_write_byte_data(client,
+				(reg << 1) | (val >> 8), val & 0xff) == 0)
 			return 0;
-		}
-	}
 	v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg);
 	return -1;
 }
 
-static int wm8775_command(struct i2c_client *client, unsigned int cmd,
-			  void *arg)
+static int wm8775_command(struct i2c_client *client, unsigned cmd, void *arg)
 {
 	struct wm8775_state *state = i2c_get_clientdata(client);
 	struct v4l2_routing *route = arg;
@@ -126,7 +125,8 @@ static int wm8775_command(struct i2c_client *client, unsigned int cmd,
 		break;
 
 	case VIDIOC_G_CHIP_IDENT:
-		return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_WM8775, 0);
+		return v4l2_chip_ident_i2c_client(client,
+				arg, V4L2_IDENT_WM8775, 0);
 
 	case VIDIOC_LOG_STATUS:
 		v4l_info(client, "Input: %d%s\n", state->input,
@@ -159,105 +159,67 @@ static int wm8775_command(struct i2c_client *client, unsigned int cmd,
  * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
  */
 
-static struct i2c_driver i2c_driver;
-
-static int wm8775_attach(struct i2c_adapter *adapter, int address, int kind)
+static int wm8775_probe(struct i2c_client *client)
 {
-	struct i2c_client *client;
 	struct wm8775_state *state;
 
 	/* Check if the adapter supports the needed features */
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		return 0;
-
-	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (client == 0)
-		return -ENOMEM;
-
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &i2c_driver;
-	snprintf(client->name, sizeof(client->name) - 1, "wm8775");
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -EIO;
 
-	v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name);
+	v4l_info(client, "chip found @ 0x%x (%s)\n",
+			client->addr << 1, client->adapter->name);
 
 	state = kmalloc(sizeof(struct wm8775_state), GFP_KERNEL);
-	if (state == NULL) {
-		kfree(client);
+	if (state == NULL)
 		return -ENOMEM;
-	}
 	state->input = 2;
 	state->muted = 0;
 	i2c_set_clientdata(client, state);
 
-	/* initialize wm8775 */
-	wm8775_write(client, R23, 0x000);	/* RESET */
-	wm8775_write(client, R7, 0x000);	/* Disable zero cross detect timeout */
-	wm8775_write(client, R11, 0x021);	/* Left justified, 24-bit mode */
-	wm8775_write(client, R12, 0x102);	/* Master mode, clock ratio 256fs */
-	wm8775_write(client, R13, 0x000);	/* Powered up */
-	wm8775_write(client, R14, 0x1d4);	/* ADC gain +2.5dB, enable zero cross */
-	wm8775_write(client, R15, 0x1d4);	/* ADC gain +2.5dB, enable zero cross */
-	wm8775_write(client, R16, 0x1bf);	/* ALC Stereo, ALC target level -1dB FS */
-	/* max gain +8dB */
-	wm8775_write(client, R17, 0x185);	/* Enable gain control, use zero cross */
-	/* detection, ALC hold time 42.6 ms */
-	wm8775_write(client, R18, 0x0a2);	/* ALC gain ramp up delay 34 s, */
-	/* ALC gain ramp down delay 33 ms */
-	wm8775_write(client, R19, 0x005);	/* Enable noise gate, threshold -72dBfs */
-	wm8775_write(client, R20, 0x07a);	/* Transient window 4ms, lower PGA gain */
-	/* limit -1dB */
-	wm8775_write(client, R21, 0x102);	/* LRBOTH = 1, use input 2. */
-	i2c_attach_client(client);
-
+	/* Initialize wm8775 */
+
+	/* RESET */
+	wm8775_write(client, R23, 0x000);
+	/* Disable zero cross detect timeout */
+	wm8775_write(client, R7, 0x000);
+	/* Left justified, 24-bit mode */
+	wm8775_write(client, R11, 0x021);
+	/* Master mode, clock ratio 256fs */
+	wm8775_write(client, R12, 0x102);
+	/* Powered up */
+	wm8775_write(client, R13, 0x000);
+	/* ADC gain +2.5dB, enable zero cross */
+	wm8775_write(client, R14, 0x1d4);
+	/* ADC gain +2.5dB, enable zero cross */
+	wm8775_write(client, R15, 0x1d4);
+	/* ALC Stereo, ALC target level -1dB FS max gain +8dB */
+	wm8775_write(client, R16, 0x1bf);
+	/* Enable gain control, use zero cross detection,
+	   ALC hold time 42.6 ms */
+	wm8775_write(client, R17, 0x185);
+	/* ALC gain ramp up delay 34 s, ALC gain ramp down delay 33 ms */
+	wm8775_write(client, R18, 0x0a2);
+	/* Enable noise gate, threshold -72dBfs */
+	wm8775_write(client, R19, 0x005);
+	/* Transient window 4ms, lower PGA gain limit -1dB */
+	wm8775_write(client, R20, 0x07a);
+	/* LRBOTH = 1, use input 2. */
+	wm8775_write(client, R21, 0x102);
 	return 0;
 }
 
-static int wm8775_probe(struct i2c_adapter *adapter)
+static int wm8775_remove(struct i2c_client *client)
 {
-	if (adapter->class & I2C_CLASS_TV_ANALOG)
-		return i2c_probe(adapter, &addr_data, wm8775_attach);
+	kfree(i2c_get_clientdata(client));
 	return 0;
 }
 
-static int wm8775_detach(struct i2c_client *client)
-{
-	struct wm8775_state *state = i2c_get_clientdata(client);
-	int err;
-
-	err = i2c_detach_client(client);
-	if (err) {
-		return err;
-	}
-	kfree(state);
-	kfree(client);
-
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-/* i2c implementation */
-static struct i2c_driver i2c_driver = {
-	.driver = {
-		.name = "wm8775",
-	},
-	.id             = I2C_DRIVERID_WM8775,
-	.attach_adapter = wm8775_probe,
-	.detach_client  = wm8775_detach,
-	.command        = wm8775_command,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+	.name = "wm8775",
+	.driverid = I2C_DRIVERID_WM8775,
+	.command = wm8775_command,
+	.probe = wm8775_probe,
+	.remove = wm8775_remove,
 };
 
-
-static int __init wm8775_init_module(void)
-{
-	return i2c_add_driver(&i2c_driver);
-}
-
-static void __exit wm8775_cleanup_module(void)
-{
-	i2c_del_driver(&i2c_driver);
-}
-
-module_init(wm8775_init_module);
-module_exit(wm8775_cleanup_module);