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iio: potentiometer: tpl0102: switch to using pointer to chip config 

More concise to have a pointer to tpl0102_cfg struct in the iio_priv
data than an integer to an index of an array.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: Slawomir Stepien <sst@poczta.fm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
hifive-unleashed-5.1
Matt Ranostay 2018-10-24 11:38:57 +01:00 committed by Jonathan Cameron
parent 80fc9c457e
commit ee2303515e
1 changed files with 6 additions and 6 deletions
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12
drivers/iio/potentiometer/tpl0102.c
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@ -37,7 +37,7 @@ static const struct tpl0102_cfg tpl0102_cfg[] = {
struct tpl0102_data {
struct regmap *regmap;
unsigned long devid;
const struct tpl0102_cfg *cfg;
};
static const struct regmap_config tpl0102_regmap_config = {
@ -72,8 +72,8 @@ static int tpl0102_read_raw(struct iio_dev *indio_dev,
return ret ? ret : IIO_VAL_INT;
}
case IIO_CHAN_INFO_SCALE:
*val = 1000 * tpl0102_cfg[data->devid].kohms;
*val2 = tpl0102_cfg[data->devid].max_pos;
*val = 1000 * data->cfg->kohms;
*val2 = data->cfg->max_pos;
return IIO_VAL_FRACTIONAL;
}
@ -89,7 +89,7 @@ static int tpl0102_write_raw(struct iio_dev *indio_dev,
if (mask != IIO_CHAN_INFO_RAW)
return -EINVAL;
if (val >= tpl0102_cfg[data->devid].max_pos || val < 0)
if (val >= data->cfg->max_pos || val < 0)
return -EINVAL;
return regmap_write(data->regmap, chan->channel, val);
@ -113,7 +113,7 @@ static int tpl0102_probe(struct i2c_client *client,
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->devid = id->driver_data;
data->cfg = &tpl0102_cfg[id->driver_data];
data->regmap = devm_regmap_init_i2c(client, &tpl0102_regmap_config);
if (IS_ERR(data->regmap)) {
dev_err(dev, "regmap initialization failed\n");
@ -123,7 +123,7 @@ static int tpl0102_probe(struct i2c_client *client,
indio_dev->dev.parent = dev;
indio_dev->info = &tpl0102_info;
indio_dev->channels = tpl0102_channels;
indio_dev->num_channels = tpl0102_cfg[data->devid].wipers;
indio_dev->num_channels = data->cfg->wipers;
indio_dev->name = client->name;
return devm_iio_device_register(dev, indio_dev);