forked from luck/tmp_suning_uos_patched
V4L/DVB (6453): wm8739: convert to bus-based I2C API
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -30,6 +30,7 @@
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#include <linux/videodev.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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MODULE_DESCRIPTION("wm8739 driver");
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MODULE_AUTHOR("T. Adachi, Hans Verkuil");
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@ -259,27 +260,11 @@ static int wm8739_command(struct i2c_client *client, unsigned int cmd, void *arg
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/* i2c implementation */
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static struct i2c_driver i2c_driver;
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static int wm8739_attach(struct i2c_adapter *adapter, int address, int kind)
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static int wm8739_probe(struct i2c_client *client)
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{
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struct i2c_client *client;
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struct wm8739_state *state;
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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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return 0;
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client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
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if (client == NULL)
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return -ENOMEM;
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client->addr = address;
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client->adapter = adapter;
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client->driver = &i2c_driver;
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snprintf(client->name, sizeof(client->name) - 1, "wm8739");
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v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name);
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v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
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state = kmalloc(sizeof(struct wm8739_state), GFP_KERNEL);
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if (state == NULL) {
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@ -306,56 +291,20 @@ static int wm8739_attach(struct i2c_adapter *adapter, int address, int kind)
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/* normal, 256fs, 48KHz sampling rate */
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wm8739_write(client, R9, 0x001); /* activate */
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wm8739_set_audio(client); /* set volume/mute */
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i2c_attach_client(client);
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return 0;
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}
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static int wm8739_probe(struct i2c_adapter *adapter)
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static int wm8739_remove(struct i2c_client *client)
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{
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if (adapter->class & I2C_CLASS_TV_ANALOG)
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return i2c_probe(adapter, &addr_data, wm8739_attach);
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kfree(i2c_get_clientdata(client));
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return 0;
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}
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static int wm8739_detach(struct i2c_client *client)
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{
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struct wm8739_state *state = i2c_get_clientdata(client);
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int err;
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err = i2c_detach_client(client);
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if (err)
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return err;
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kfree(state);
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kfree(client);
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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/* i2c implementation */
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static struct i2c_driver i2c_driver = {
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.driver = {
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.name = "wm8739",
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},
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.id = I2C_DRIVERID_WM8739,
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.attach_adapter = wm8739_probe,
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.detach_client = wm8739_detach,
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static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.name = "wm8739",
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.driverid = I2C_DRIVERID_WM8739,
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.command = wm8739_command,
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.probe = wm8739_probe,
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.remove = wm8739_remove,
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};
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static int __init wm8739_init_module(void)
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{
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return i2c_add_driver(&i2c_driver);
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}
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static void __exit wm8739_cleanup_module(void)
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{
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i2c_del_driver(&i2c_driver);
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}
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module_init(wm8739_init_module);
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module_exit(wm8739_cleanup_module);
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