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authorAxel Lin <axel.lin@gmail.com>2012-03-15 08:47:48 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 11:59:25 +0100
commitc8237f01db63b458c34222d07f66c5417cfd866b (patch)
tree37862f1459b4ed044868b8857ee3c7d502c124aa /drivers/regulator/max8952.c
parent1f793ff258c7a48e8cc3729ac13bfd1b3850b9c9 (diff)
regulator: max8952: Simplify the logic to get vid[0|1] status
The syntax "(((vid >> 1) % 2) == 1)" is inefficient and also hard to read. Use bitwidse AND operator instead. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/max8952.c')
-rw-r--r--drivers/regulator/max8952.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index 75d89400c123..e9c0a0ea1528 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -152,8 +152,8 @@ static int max8952_set_voltage(struct regulator_dev *rdev,
}
if (vid >= 0 && vid < MAX8952_NUM_DVS_MODE) {
- max8952->vid0 = (vid % 2 == 1);
- max8952->vid1 = (((vid >> 1) % 2) == 1);
+ max8952->vid0 = vid & 0x1;
+ max8952->vid1 = (vid >> 1) & 0x1;
*selector = vid;
gpio_set_value(max8952->pdata->gpio_vid0, max8952->vid0);
gpio_set_value(max8952->pdata->gpio_vid1, max8952->vid1);
@@ -217,8 +217,8 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
}
max8952->en = !!(pdata->reg_data.constraints.boot_on);
- max8952->vid0 = (pdata->default_mode % 2) == 1;
- max8952->vid1 = ((pdata->default_mode >> 1) % 2) == 1;
+ max8952->vid0 = pdata->default_mode & 0x1;
+ max8952->vid1 = (pdata->default_mode >> 1) & 0x1;
if (gpio_is_valid(pdata->gpio_en)) {
if (!gpio_request(pdata->gpio_en, "MAX8952 EN"))
@@ -241,13 +241,13 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
gpio_is_valid(pdata->gpio_vid1)) {
if (!gpio_request(pdata->gpio_vid0, "MAX8952 VID0"))
gpio_direction_output(pdata->gpio_vid0,
- (pdata->default_mode) % 2);
+ (pdata->default_mode) & 0x1);
else
err = 1;
if (!gpio_request(pdata->gpio_vid1, "MAX8952 VID1"))
gpio_direction_output(pdata->gpio_vid1,
- (pdata->default_mode >> 1) % 2);
+ (pdata->default_mode >> 1) & 0x1);
else {
if (!err)
gpio_free(pdata->gpio_vid0);