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author | Antti Palosaari <crope@iki.fi> | 2015-04-15 23:38:43 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-18 18:54:46 (GMT) |
commit | dd219a87e4ba963c8208a3ef0a38fbc14074ad70 (patch) | |
tree | b5b7a71dc2955b2ec968be5afe7952bf493f5891 /drivers/media/tuners | |
parent | 465433fa378a6e0248461f03df6bfd754832a87b (diff) | |
download | linux-dd219a87e4ba963c8208a3ef0a38fbc14074ad70.tar.xz |
[media] tua9001: use regmap for I2C register access
Use regmap for I2C register access.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/tuners')
-rw-r--r-- | drivers/media/tuners/Kconfig | 1 | ||||
-rw-r--r-- | drivers/media/tuners/tua9001.c | 41 | ||||
-rw-r--r-- | drivers/media/tuners/tua9001_priv.h | 2 |
3 files changed, 15 insertions, 29 deletions
diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig index 0408745..8294af9 100644 --- a/drivers/media/tuners/Kconfig +++ b/drivers/media/tuners/Kconfig @@ -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. diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c index fe778cd..09a1034 100644 --- a/drivers/media/tuners/tua9001.c +++ b/drivers/media/tuners/tua9001.c @@ -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, ®map_config); + if (IS_ERR(dev->regmap)) { + ret = PTR_ERR(dev->regmap); + goto err_kfree; + } if (fe->callback) { ret = fe->callback(client->adapter, diff --git a/drivers/media/tuners/tua9001_priv.h b/drivers/media/tuners/tua9001_priv.h index e24d843..327ead9 100644 --- a/drivers/media/tuners/tua9001_priv.h +++ b/drivers/media/tuners/tua9001_priv.h @@ -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 |