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Commit dd219a87 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] tua9001: use regmap for I2C register access 



Use regmap for I2C register access.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 465433fa

drivers/media/tuners/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -236,6 +236,7 @@ config MEDIA_TUNER_M88RS6000T 
config MEDIA_TUNER_TUA9001

	tristate "Infineon TUA9001 silicon tuner"

	depends on MEDIA_SUPPORT && I2C

	select REGMAP_I2C

	default m if !MEDIA_SUBDRV_AUTOSELECT

	help

	  Infineon TUA 9001 silicon tuner driver.

drivers/media/tuners/tua9001.c

+12 −29
Original line number Diff line number Diff line
@@ -16,32 +16,6 @@ 


#include "tua9001_priv.h"



/* write register */

static int tua9001_wr_reg(struct tua9001_dev *dev, u8 reg, u16 val)

{

	struct i2c_client *client = dev->client;

	int ret;

	u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff };

	struct i2c_msg msg[1] = {

		{

			.addr = client->addr,

			.flags = 0,

			.len = sizeof(buf),

			.buf = buf,

		}

	};



	ret = i2c_transfer(client->adapter, msg, 1);

	if (ret == 1) {

		ret = 0;

	} else {

		dev_warn(&client->dev, "i2c wr failed=%d reg=%02x\n", ret, reg);

		ret = -EREMOTEIO;

	}



	return ret;

}



static int tua9001_init(struct dvb_frontend *fe)

{

	struct tua9001_dev *dev = fe->tuner_priv;
@@ -76,7 +50,7 @@ static int tua9001_init(struct dvb_frontend *fe) 
	}



	for (i = 0; i < ARRAY_SIZE(data); i++) {

		ret = tua9001_wr_reg(dev, data[i].reg, data[i].val);

		ret = regmap_write(dev->regmap, data[i].reg, data[i].val);

		if (ret)

			goto err;

	}
@@ -166,7 +140,7 @@ static int tua9001_set_params(struct dvb_frontend *fe) 
	}



	for (i = 0; i < ARRAY_SIZE(data); i++) {

		ret = tua9001_wr_reg(dev, data[i].reg, data[i].val);

		ret = regmap_write(dev->regmap, data[i].reg, data[i].val);

		if (ret)

			goto err;

	}
@@ -216,6 +190,10 @@ static int tua9001_probe(struct i2c_client *client, 
	struct tua9001_platform_data *pdata = client->dev.platform_data;

	struct dvb_frontend *fe = pdata->dvb_frontend;

	int ret;

	static const struct regmap_config regmap_config = {

		.reg_bits =  8,

		.val_bits = 16,

	};



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

	if (!dev) {
@@ -223,8 +201,13 @@ static int tua9001_probe(struct i2c_client *client, 
		goto err;

	}



	dev->client = client;

	dev->fe = pdata->dvb_frontend;

	dev->client = client;

	dev->regmap = devm_regmap_init_i2c(client, &regmap_config);

	if (IS_ERR(dev->regmap)) {

		ret = PTR_ERR(dev->regmap);

		goto err_kfree;

	}



	if (fe->callback) {

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

drivers/media/tuners/tua9001_priv.h

+2 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#define TUA9001_PRIV_H



#include "tua9001.h"

#include <linux/regmap.h>



struct tua9001_reg_val {

	u8 reg;
@@ -27,6 +28,7 @@ struct tua9001_reg_val { 
struct tua9001_dev {

	struct dvb_frontend *fe;

	struct i2c_client *client;

	struct regmap *regmap;

};



#endif