diff options
| author | Crt Mori <cmo@melexis.com> | 2020-08-18 23:37:35 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-09-03 19:40:55 +0100 |
| commit | 037697dd264dd35a1f0ee13a3e8e3adb23f46075 (patch) | |
| tree | 8d15700eecf0ddd2b7adc933651319355c95a23b /drivers/iio/temperature/mlx90632.c | |
| parent | 856437dbb85b918c7ed167dea929f1a11aa20cb4 (diff) | |
| download | linux-stable-037697dd264dd35a1f0ee13a3e8e3adb23f46075.tar.gz linux-stable-037697dd264dd35a1f0ee13a3e8e3adb23f46075.tar.bz2 linux-stable-037697dd264dd35a1f0ee13a3e8e3adb23f46075.zip | |
iio:temperature:mlx90632: Convert polling while loop to regmap
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>
Diffstat (limited to 'drivers/iio/temperature/mlx90632.c')
| -rw-r--r-- | drivers/iio/temperature/mlx90632.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c index ce75f5a3486b..d782634c107f 100644 --- a/drivers/iio/temperature/mlx90632.c +++ b/drivers/iio/temperature/mlx90632.c @@ -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, - ®_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; } |