V4L/DVB (6456): saa7127: convert to bus-based I2C API

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index e35ef321ec717b7da3b1a8e0ef0fa2eb424df718..958ecc7168c38c86b9fe36541bb22a036ac7ab43 100644 (file)
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -55,6 +55,7 @@
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
 #include <media/saa7127.h>
 
 static int debug = 0;
@@ -662,31 +663,19 @@ static int saa7127_command(struct i2c_client *client,
 
 /* ----------------------------------------------------------------------- */
 
-static struct i2c_driver i2c_driver_saa7127;
-
-/* ----------------------------------------------------------------------- */
-
-static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
+static int saa7127_probe(struct i2c_client *client)
 {
-       struct i2c_client *client;
        struct saa7127_state *state;
        struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 };  /* set to disabled */
        int read_result = 0;
 
        /* Check if the adapter supports the needed features */
-       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 == 0)
-               return -ENOMEM;
-
-       client->addr = address;
-       client->adapter = adapter;
-       client->driver = &i2c_driver_saa7127;
        snprintf(client->name, sizeof(client->name) - 1, "saa7127");
 
-       v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n", address << 1);
+       v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n", client->addr << 1);
 
        /* First test register 0: Bits 5-7 are a version ID (should be 0),
           and bit 2 should also be 0.
@@ -696,13 +685,11 @@ static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
        if ((saa7127_read(client, 0) & 0xe4) != 0 ||
                        (saa7127_read(client, 0x29) & 0x3f) != 0x1d) {
                v4l_dbg(1, debug, client, "saa7127 not found\n");
-               kfree(client);
                return 0;
        }
        state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
 
        if (state == NULL) {
-               kfree(client);
                return (-ENOMEM);
        }
 
@@ -731,78 +718,34 @@ static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
        read_result = saa7127_read(client, SAA7129_REG_FADE_KEY_COL2);
        saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, 0xaa);
        if (saa7127_read(client, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {
-               v4l_info(client, "saa7129 found @ 0x%x (%s)\n", address << 1, adapter->name);
+               v4l_info(client, "saa7129 found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
                saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, read_result);
                saa7127_write_inittab(client, saa7129_init_config_extra);
                state->ident = V4L2_IDENT_SAA7129;
        } else {
-               v4l_info(client, "saa7127 found @ 0x%x (%s)\n", address << 1, adapter->name);
+               v4l_info(client, "saa7127 found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
                state->ident = V4L2_IDENT_SAA7127;
        }
-
-       i2c_attach_client(client);
-
-       return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int saa7127_probe(struct i2c_adapter *adapter)
-{
-       if (adapter->class & I2C_CLASS_TV_ANALOG)
-               return i2c_probe(adapter, &addr_data, saa7127_attach);
        return 0;
 }
 
 /* ----------------------------------------------------------------------- */
 
-static int saa7127_detach(struct i2c_client *client)
+static int saa7127_remove(struct i2c_client *client)
 {
-       struct saa7127_state *state = i2c_get_clientdata(client);
-       int err;
-
        /* Turn off TV output */
        saa7127_set_video_enable(client, 0);
-
-       err = i2c_detach_client(client);
-
-       if (err) {
-               return err;
-       }
-
-       kfree(state);
-       kfree(client);
+       kfree(i2c_get_clientdata(client));
        return 0;
 }
 
 /* ----------------------------------------------------------------------- */
 
-static struct i2c_driver i2c_driver_saa7127 = {
-       .driver = {
-               .name = "saa7127",
-       },
-       .id = I2C_DRIVERID_SAA7127,
-       .attach_adapter = saa7127_probe,
-       .detach_client = saa7127_detach,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+       .name = "saa7127",
+       .driverid = I2C_DRIVERID_SAA7127,
        .command = saa7127_command,
+       .probe = saa7127_probe,
+       .remove = saa7127_remove,
 };
 
-
-/* ----------------------------------------------------------------------- */
-
-static int __init saa7127_init_module(void)
-{
-       return i2c_add_driver(&i2c_driver_saa7127);
-}
-
-/* ----------------------------------------------------------------------- */
-
-static void __exit saa7127_cleanup_module(void)
-{
-       i2c_del_driver(&i2c_driver_saa7127);
-}
-
-/* ----------------------------------------------------------------------- */
-
-module_init(saa7127_init_module);
-module_exit(saa7127_cleanup_module);