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Commit 59e8b7aa authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] mt2060: add i2c bindings 



Add proper i2c driver model bindings.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent f57e9618

drivers/media/tuners/mt2060.c

+83 −0
Original line number Diff line number Diff line
@@ -392,6 +392,89 @@ struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter 
}

EXPORT_SYMBOL(mt2060_attach);



static int mt2060_probe(struct i2c_client *client,

			const struct i2c_device_id *id)

{

	struct mt2060_platform_data *pdata = client->dev.platform_data;

	struct dvb_frontend *fe;

	struct mt2060_priv *dev;

	int ret;

	u8 chip_id;



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



	if (!pdata) {

		dev_err(&client->dev, "Cannot proceed without platform data\n");

		ret = -EINVAL;

		goto err;

	}



	dev = devm_kzalloc(&client->dev, sizeof(*dev), GFP_KERNEL);

	if (!dev) {

		ret = -ENOMEM;

		goto err;

	}



	fe = pdata->dvb_frontend;

	dev->config.i2c_address = client->addr;

	dev->config.clock_out = pdata->clock_out;

	dev->cfg = &dev->config;

	dev->i2c = client->adapter;

	dev->if1_freq = pdata->if1 ? pdata->if1 : 1220;

	dev->client = client;



	ret = mt2060_readreg(dev, REG_PART_REV, &chip_id);

	if (ret) {

		ret = -ENODEV;

		goto err;

	}



	dev_dbg(&client->dev, "chip id=%02x\n", chip_id);



	if (chip_id != PART_REV) {

		ret = -ENODEV;

		goto err;

	}



	dev_info(&client->dev, "Microtune MT2060 successfully identified\n");

	memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(fe->ops.tuner_ops));

	fe->ops.tuner_ops.release = NULL;

	fe->tuner_priv = dev;

	i2c_set_clientdata(client, dev);



	mt2060_calibrate(dev);



	return 0;

err:

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

	return ret;

}



static int mt2060_remove(struct i2c_client *client)

{

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



	return 0;

}



static const struct i2c_device_id mt2060_id_table[] = {

	{"mt2060", 0},

	{}

};

MODULE_DEVICE_TABLE(i2c, mt2060_id_table);



static struct i2c_driver mt2060_driver = {

	.driver = {

		.name = "mt2060",

		.suppress_bind_attrs = true,

	},

	.probe		= mt2060_probe,

	.remove		= mt2060_remove,

	.id_table	= mt2060_id_table,

};



module_i2c_driver(mt2060_driver);



MODULE_AUTHOR("Olivier DANET");

MODULE_DESCRIPTION("Microtune MT2060 silicon tuner driver");

MODULE_LICENSE("GPL");

drivers/media/tuners/mt2060.h

+20 −0
Original line number Diff line number Diff line
@@ -21,6 +21,26 @@ 
struct dvb_frontend;

struct i2c_adapter;



/*

 * I2C address

 * 0x60, ...

 */



/**

 * struct mt2060_platform_data - Platform data for the mt2060 driver

 * @clock_out: Clock output setting. 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1.

 * @if1: First IF used [MHz]. 0 defaults to 1220.

 * @dvb_frontend: DVB frontend.

 */



struct mt2060_platform_data {

	u8 clock_out;

	u16 if1;

	struct dvb_frontend *dvb_frontend;

};





/* configuration struct for mt2060_attach() */

struct mt2060_config {

	u8 i2c_address;

	u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */

drivers/media/tuners/mt2060_priv.h

+2 −0
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ 
struct mt2060_priv {

	struct mt2060_config *cfg;

	struct i2c_adapter   *i2c;

	struct i2c_client *client;

	struct mt2060_config config;



	u32 frequency;

	u16 if1_freq;