V4L/DVB (6464): tlv320aic23b: convert to bus-based I2C API (6235168d) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/media/video/tlv320aic23b.c

+13 −58

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@
		#include <linux/i2c-id.h>
		#include <linux/videodev.h>
		#include <media/v4l2-common.h>
		#include <media/v4l2-i2c-drv-legacy.h>

		MODULE_DESCRIPTION("tlv320aic23b driver");
		MODULE_AUTHOR("Scott Alfter, Ulf Eklund, Hans Verkuil");
		@@ -126,31 +127,18 @@ static int tlv320aic23b_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 tlv320aic23b_attach(struct i2c_adapter *adapter, int address, int kind)
		static int tlv320aic23b_probe(struct i2c_client *client)
		{
		struct i2c_client *client;
		struct tlv320aic23b_state *state;

		/* 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;
		snprintf(client->name, sizeof(client->name) - 1, "tlv320aic23b");

		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 tlv320aic23b_state), GFP_KERNEL);
		if (state == NULL) {
		kfree(client);
		return -ENOMEM;
		}
		state->muted = 0;
		@@ -163,55 +151,22 @@ static int tlv320aic23b_attach(struct i2c_adapter *adapter, int address, int kin
		tlv320aic23b_write(client, 0, 0x119); /* set gain on both channels to +3.0 dB */
		tlv320aic23b_write(client, 8, 0x000); /* set sample rate to 48 kHz */
		tlv320aic23b_write(client, 9, 0x001); /* activate digital interface */

		i2c_attach_client(client);

		return 0;
		}

		static int tlv320aic23b_probe(struct i2c_adapter *adapter)
		static int tlv320aic23b_remove(struct i2c_client *client)
		{
		if (adapter->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adapter, &addr_data, tlv320aic23b_attach);
		return 0;
		}

		static int tlv320aic23b_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 = {

		static struct v4l2_i2c_driver_data v4l2_i2c_data = {
		.name = "tlv320aic23b",
		},
		.id = I2C_DRIVERID_TLV320AIC23B,
		.attach_adapter = tlv320aic23b_probe,
		.detach_client = tlv320aic23b_detach,
		.driverid = I2C_DRIVERID_TLV320AIC23B,
		.command = tlv320aic23b_command,
		.probe = tlv320aic23b_probe,
		.remove = tlv320aic23b_remove,
		};


		static int __init tlv320aic23b_init_module(void)
		{
		return i2c_add_driver(&i2c_driver);
		}

		static void __exit tlv320aic23b_cleanup_module(void)
		{
		i2c_del_driver(&i2c_driver);
		}

		module_init(tlv320aic23b_init_module);
		module_exit(tlv320aic23b_cleanup_module);