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Commit fc851c66 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] tua9001: add I2C bindings 



Add I2C bindings.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent b3f02270

drivers/media/tuners/tua9001.c

+98 −2
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ static int tua9001_wr_reg(struct tua9001_priv *priv, u8 reg, u16 val) 
	u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff };

	struct i2c_msg msg[1] = {

		{

			.addr = priv->cfg->i2c_addr,

			.addr = priv->i2c_addr,

			.flags = 0,

			.len = sizeof(buf),

			.buf = buf,
@@ -253,7 +253,7 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, 
	if (priv == NULL)

		return NULL;



	priv->cfg = cfg;

	priv->i2c_addr = cfg->i2c_addr;

	priv->i2c = i2c;



	if (fe->callback) {
@@ -289,6 +289,102 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, 
}

EXPORT_SYMBOL(tua9001_attach);



static int tua9001_probe(struct i2c_client *client,

			const struct i2c_device_id *id)

{

	struct tua9001_priv *dev;

	struct tua9001_platform_data *pdata = client->dev.platform_data;

	struct dvb_frontend *fe = pdata->dvb_frontend;

	int ret;



	dev = kzalloc(sizeof(*dev), GFP_KERNEL);

	if (!dev) {

		ret = -ENOMEM;

		goto err;

	}



	dev->client = client;

	dev->i2c_addr = client->addr;

	dev->i2c = client->adapter;

	dev->fe = pdata->dvb_frontend;



	if (fe->callback) {

		ret = fe->callback(client->adapter,

				   DVB_FRONTEND_COMPONENT_TUNER,

				   TUA9001_CMD_CEN, 1);

		if (ret)

			goto err_kfree;



		ret = fe->callback(client->adapter,

				   DVB_FRONTEND_COMPONENT_TUNER,

				   TUA9001_CMD_RXEN, 0);

		if (ret)

			goto err_kfree;



		ret = fe->callback(client->adapter,

				   DVB_FRONTEND_COMPONENT_TUNER,

				   TUA9001_CMD_RESETN, 1);

		if (ret)

			goto err_kfree;

	}



	fe->tuner_priv = dev;

	memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,

			sizeof(struct dvb_tuner_ops));

	fe->ops.tuner_ops.release = NULL;

	i2c_set_clientdata(client, dev);



	dev_info(&client->dev, "Infineon TUA 9001 successfully attached\n");

	return 0;

err_kfree:

	kfree(dev);

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int tua9001_remove(struct i2c_client *client)

{

	struct tua9001_priv *dev = i2c_get_clientdata(client);

	struct dvb_frontend *fe = dev->fe;

	int ret;



	dev_dbg(&client->dev, "\n");



	if (fe->callback) {

		ret = fe->callback(client->adapter,

				   DVB_FRONTEND_COMPONENT_TUNER,

				   TUA9001_CMD_CEN, 0);

		if (ret)

			goto err_kfree;

	}

	kfree(dev);

	return 0;

err_kfree:

	kfree(dev);

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static const struct i2c_device_id tua9001_id_table[] = {

	{"tua9001", 0},

	{}

};

MODULE_DEVICE_TABLE(i2c, tua9001_id_table);



static struct i2c_driver tua9001_driver = {

	.driver = {

		.owner	= THIS_MODULE,

		.name	= "tua9001",

		.suppress_bind_attrs = true,

	},

	.probe		= tua9001_probe,

	.remove		= tua9001_remove,

	.id_table	= tua9001_id_table,

};



module_i2c_driver(tua9001_driver);



MODULE_DESCRIPTION("Infineon TUA 9001 silicon tuner driver");

MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");

MODULE_LICENSE("GPL");

drivers/media/tuners/tua9001.h

+13 −0
Original line number Diff line number Diff line
@@ -24,6 +24,19 @@ 
#include <linux/kconfig.h>

#include "dvb_frontend.h"



/*

 * I2C address

 * 0x60,

 */



/**

 * struct tua9001_platform_data - Platform data for the tua9001 driver

 * @dvb_frontend: DVB frontend.

 */

struct tua9001_platform_data {

	struct dvb_frontend *dvb_frontend;

};



struct tua9001_config {

	/*

	 * I2C address

drivers/media/tuners/tua9001_priv.h

+3 −1
Original line number Diff line number Diff line
@@ -27,8 +27,10 @@ struct reg_val { 
};



struct tua9001_priv {

	struct tua9001_config *cfg;

	struct i2c_client *client;

	struct i2c_adapter *i2c;

	u8 i2c_addr;

	struct dvb_frontend *fe;

};



#endif