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iio:temperature:mlx90632: Convert polling while loop to regmap

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Reduce number of lines and improve readability to convert polling while
loops to regmap_read_poll_timeout.

Signed-off-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200818213737.140613-4-cmo@melexis.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Crt Mori 2020-08-18 23:37:35 +02:00 committed by Jonathan Cameron
parent 856437dbb8
commit 037697dd26
1 changed files with 5 additions and 11 deletions
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16
drivers/iio/temperature/mlx90632.c
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@ -180,25 +180,19 @@ static s32 mlx90632_pwr_continuous(struct regmap *regmap)
*/
static int mlx90632_perform_measurement(struct mlx90632_data *data)
{
int ret, tries = 100;
unsigned int reg_status;
int ret;
ret = regmap_update_bits(data->regmap, MLX90632_REG_STATUS,
MLX90632_STAT_DATA_RDY, 0);
if (ret < 0)
return ret;
while (tries-- > 0) {
ret = regmap_read(data->regmap, MLX90632_REG_STATUS,
&reg_status);
if (ret < 0)
return ret;
if (reg_status & MLX90632_STAT_DATA_RDY)
break;
usleep_range(10000, 11000);
}
ret = regmap_read_poll_timeout(data->regmap, MLX90632_REG_STATUS, reg_status,
!(reg_status & MLX90632_STAT_DATA_RDY), 10000,
100 * 10000);
if (tries < 0) {
if (ret < 0) {
dev_err(&data->client->dev, "data not ready");
return -ETIMEDOUT;
}