diff options
| author | Brian Masney <masneyb@onstation.org> | 2016-12-03 21:19:25 -0500 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-12-04 11:01:10 +0000 |
| commit | f40531d1e7848cf49f323f91a653d16caac27431 (patch) | |
| tree | b2b97a897a678753fd4da85578a3e178d57b7cb2 /drivers/staging/iio | |
| parent | 91ca1a8c584f55857b1f6ab20a1d3a1ce7a559bb (diff) | |
| download | linux-f40531d1e7848cf49f323f91a653d16caac27431.tar.bz2 | |
staging: iio: isl29028: remove nested if statements
There are two callers to the function isl29028_set_als_ir_mode() and
both instances use a nested if statement to only change the chip state
if it is not in the proper mode. This patch moves this check into the
isl29028_set_als_ir_mode() function to remove the nested if
statements.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio')
| -rw-r--r-- | drivers/staging/iio/light/isl29028.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c index aa413e5878b9..4e35d00a3e56 100644 --- a/drivers/staging/iio/light/isl29028.c +++ b/drivers/staging/iio/light/isl29028.c @@ -124,6 +124,9 @@ static int isl29028_set_als_ir_mode(struct isl29028_chip *chip, { int ret = 0; + if (chip->als_ir_mode == mode) + return 0; + switch (mode) { case ISL29028_MODE_ALS: ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE, @@ -160,6 +163,9 @@ static int isl29028_set_als_ir_mode(struct isl29028_chip *chip, /* Need to wait for conversion time if ALS/IR mode enabled */ mdelay(ISL29028_CONV_TIME_MS); + + chip->als_ir_mode = mode; + return 0; } @@ -223,14 +229,10 @@ static int isl29028_als_get(struct isl29028_chip *chip, int *als_data) int ret; int als_ir_data; - if (chip->als_ir_mode != ISL29028_MODE_ALS) { - ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS); - if (ret < 0) { - dev_err(dev, - "Error in enabling ALS mode err %d\n", ret); - return ret; - } - chip->als_ir_mode = ISL29028_MODE_ALS; + ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS); + if (ret < 0) { + dev_err(dev, "Error in enabling ALS mode err %d\n", ret); + return ret; } ret = isl29028_read_als_ir(chip, &als_ir_data); @@ -256,14 +258,10 @@ static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data) struct device *dev = regmap_get_device(chip->regmap); int ret; - if (chip->als_ir_mode != ISL29028_MODE_IR) { - ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR); - if (ret < 0) { - dev_err(dev, - "Error in enabling IR mode err %d\n", ret); - return ret; - } - chip->als_ir_mode = ISL29028_MODE_IR; + ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR); + if (ret < 0) { + dev_err(dev, "Error in enabling IR mode err %d\n", ret); + return ret; } return isl29028_read_als_ir(chip, ir_data); } |