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Commit d69abb79 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] tda10071: implement I2C client bindings 



Implement I2C client bindings.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent c70316f2

drivers/media/dvb-frontends/tda10071.c

+95 −0
Original line number Diff line number Diff line
@@ -1313,6 +1313,101 @@ static struct dvb_frontend_ops tda10071_ops = { 
	.set_voltage = tda10071_set_voltage,

};



static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client *client)

{

	struct tda10071_priv *dev = i2c_get_clientdata(client);



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



	return &dev->fe;

}



static int tda10071_probe(struct i2c_client *client,

			const struct i2c_device_id *id)

{

	struct tda10071_priv *dev;

	struct tda10071_platform_data *pdata = client->dev.platform_data;

	int ret;

	u8 u8tmp;



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

	if (!dev) {

		ret = -ENOMEM;

		goto err;

	}



	dev->client = client;

	dev->i2c = client->adapter;

	dev->cfg.demod_i2c_addr = client->addr;

	dev->cfg.i2c_wr_max = pdata->i2c_wr_max;

	dev->cfg.ts_mode = pdata->ts_mode;

	dev->cfg.spec_inv = pdata->spec_inv;

	dev->cfg.xtal = pdata->clk;

	dev->cfg.pll_multiplier = pdata->pll_multiplier;

	dev->cfg.tuner_i2c_addr = pdata->tuner_i2c_addr;



	/* chip ID */

	ret = tda10071_rd_reg(dev, 0xff, &u8tmp);

	if (ret || u8tmp != 0x0f)

		goto err_kfree;



	/* chip type */

	ret = tda10071_rd_reg(dev, 0xdd, &u8tmp);

	if (ret || u8tmp != 0x00)

		goto err_kfree;



	/* chip version */

	ret = tda10071_rd_reg(dev, 0xfe, &u8tmp);

	if (ret || u8tmp != 0x01)

		goto err_kfree;



	/* create dvb_frontend */

	memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));

	dev->fe.ops.release = NULL;

	dev->fe.demodulator_priv = dev;

	i2c_set_clientdata(client, dev);



	/* setup callbacks */

	pdata->get_dvb_frontend = tda10071_get_dvb_frontend;



	dev_info(&client->dev, "NXP TDA10071 successfully identified\n");

	return 0;

err_kfree:

	kfree(dev);

err:

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

	return ret;

}



static int tda10071_remove(struct i2c_client *client)

{

	struct tda10071_dev *dev = i2c_get_clientdata(client);



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



	kfree(dev);

	return 0;

}



static const struct i2c_device_id tda10071_id_table[] = {

	{"tda10071_cx24118", 0},

	{}

};

MODULE_DEVICE_TABLE(i2c, tda10071_id_table);



static struct i2c_driver tda10071_driver = {

	.driver = {

		.owner	= THIS_MODULE,

		.name	= "tda10071",

		.suppress_bind_attrs = true,

	},

	.probe		= tda10071_probe,

	.remove		= tda10071_remove,

	.id_table	= tda10071_id_table,

};



module_i2c_driver(tda10071_driver);



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

MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");

MODULE_LICENSE("GPL");

drivers/media/dvb-frontends/tda10071.h

+29 −0
Original line number Diff line number Diff line
@@ -24,6 +24,35 @@ 
#include <linux/kconfig.h>

#include <linux/dvb/frontend.h>



/*

 * I2C address

 * 0x55,

 */



/**

 * struct tda10071_platform_data - Platform data for the tda10071 driver

 * @clk: Clock frequency.

 * @i2c_wr_max: Max bytes I2C adapter can write at once.

 * @ts_mode: TS mode.

 * @spec_inv: Input spectrum inversion.

 * @pll_multiplier: PLL multiplier.

 * @tuner_i2c_addr: CX24118A tuner I2C address (0x14, 0x54, ...).

 * @get_dvb_frontend: Get DVB frontend.

 */



struct tda10071_platform_data {

	u32 clk;

	u16 i2c_wr_max;

#define TDA10071_TS_SERIAL        0

#define TDA10071_TS_PARALLEL      1

	u8 ts_mode;

	bool spec_inv;

	u8 pll_multiplier;

	u8 tuner_i2c_addr;



	struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);

};



struct tda10071_config {

	/* Demodulator I2C address.

	 * Default: none, must set

drivers/media/dvb-frontends/tda10071_priv.h

+1 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
struct tda10071_priv {

	struct i2c_adapter *i2c;

	struct dvb_frontend fe;

	struct i2c_client *client;

	struct tda10071_config cfg;



	u8 meas_count[2];