From 2b14e0314631bac6388c4501f3103ab5af22c0f0 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 14 Sep 2007 04:58:31 -0300
Subject: V4L/DVB (6463): upd64031a: convert to bus-based I2C API

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/upd64031a.c | 69 +++++++----------------------------------
 1 file changed, 12 insertions(+), 57 deletions(-)

diff --git a/drivers/media/video/upd64031a.c b/drivers/media/video/upd64031a.c
index 0b2a961efd22..b060ce34071c 100644
--- a/drivers/media/video/upd64031a.c
+++ b/drivers/media/video/upd64031a.c
@@ -28,6 +28,7 @@
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
 #include <media/upd64031a.h>
 
 // --------------------- read registers functions define -----------------------
@@ -193,32 +194,18 @@ static int upd64031a_command(struct i2c_client *client, unsigned int cmd, void *
 
 /* i2c implementation */
 
-static struct i2c_driver i2c_driver;
-
-static int upd64031a_attach(struct i2c_adapter *adapter, int address, int kind)
+static int upd64031a_probe(struct i2c_client *client)
 {
-	struct i2c_client *client;
 	struct upd64031a_state *state;
 	int i;
 
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return 0;
 
-	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (client == NULL) {
-		return -ENOMEM;
-	}
-
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &i2c_driver;
-	snprintf(client->name, sizeof(client->name) - 1, "uPD64031A");
-
-	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 upd64031a_state), GFP_KERNEL);
 	if (state == NULL) {
-		kfree(client);
 		return -ENOMEM;
 	}
 	i2c_set_clientdata(client, state);
@@ -229,54 +216,22 @@ static int upd64031a_attach(struct i2c_adapter *adapter, int address, int kind)
 	for (i = 0; i < TOT_REGS; i++) {
 		upd64031a_write(client, i, state->regs[i]);
 	}
-
-	i2c_attach_client(client);
-
 	return 0;
 }
 
-static int upd64031a_probe(struct i2c_adapter *adapter)
+static int upd64031a_remove(struct i2c_client *client)
 {
-	if (adapter->class & I2C_CLASS_TV_ANALOG)
-		return i2c_probe(adapter, &addr_data, upd64031a_attach);
-	return 0;
-}
-
-static int upd64031a_detach(struct i2c_client *client)
-{
-	int err;
-
-	err = i2c_detach_client(client);
-	if (err)
-		return err;
-
-	kfree(client);
+	kfree(i2c_get_clientdata(client));
 	return 0;
 }
 
 /* ----------------------------------------------------------------------- */
 
-/* i2c implementation */
-static struct i2c_driver i2c_driver = {
-	.driver = {
-		.name = "upd64031a",
-	},
-	.id = I2C_DRIVERID_UPD64031A,
-	.attach_adapter = upd64031a_probe,
-	.detach_client  = upd64031a_detach,
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+	.name = "upd64031a",
+	.driverid = I2C_DRIVERID_UPD64031A,
 	.command = upd64031a_command,
+	.probe = upd64031a_probe,
+	.remove = upd64031a_remove,
 };
-
-
-static int __init upd64031a_init_module(void)
-{
-	return i2c_add_driver(&i2c_driver);
-}
-
-static void __exit upd64031a_exit_module(void)
-{
-	i2c_del_driver(&i2c_driver);
-}
-
-module_init(upd64031a_init_module);
-module_exit(upd64031a_exit_module);
-- 
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