diff options
| author | Brian Masney <masneyb@onstation.org> | 2017-01-17 04:25:01 -0500 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-01-22 13:21:39 +0000 |
| commit | 0fac96ed50d1bb6a0ce8dd44b94d3643a0dc3c91 (patch) | |
| tree | d154cf62b70d5d4c9ffc9ab6d3f79ff52a51da99 | |
| parent | 84a76694bc17dd31eed84ab2fae857f18909da42 (diff) | |
staging: iio: isl29028: only set ALS scale when ALS/IR sensing is enabled
isl29028_chip_init_and_power_on() calls isl29028_set_als_scale() and
this is not needed until the user actually needs to take a reading from
the ALS/IR sensor. This patch moves the isl29028_set_als_scale() call
from isl29028_chip_init_and_power_on() to isl29028_set_als_ir_mode().
This sets the stage for faster resume times from runtime power
management if the user is only querying the proximity sensor.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/staging/iio/light/isl29028.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c index fa58d083906e..598a5a5a8641 100644 --- a/drivers/staging/iio/light/isl29028.c +++ b/drivers/staging/iio/light/isl29028.c @@ -146,11 +146,15 @@ static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale) static int isl29028_set_als_ir_mode(struct isl29028_chip *chip, enum isl29028_als_ir_mode mode) { - int ret = 0; + int ret; if (chip->als_ir_mode == mode) return 0; + ret = isl29028_set_als_scale(chip, chip->lux_scale); + if (ret < 0) + return ret; + switch (mode) { case ISL29028_MODE_ALS: ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE, @@ -453,7 +457,7 @@ static int isl29028_chip_init_and_power_on(struct isl29028_chip *chip) return ret; } - return isl29028_set_als_scale(chip, chip->lux_scale); + return ret; } static bool isl29028_is_volatile_reg(struct device *dev, unsigned int reg) |