summaryrefslogtreecommitdiff
path: root/drivers/regulator/max8997.c
diff options
context:
space:
mode:
authorThomas Abraham <thomas.abraham@linaro.org>2012-11-23 13:33:14 +0530
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-11-24 18:57:04 +0100
commit068a8c8239d50a5fd025c97f94945d9f2ffa3438 (patch)
treec31e3bf13f37930a60b316cae3c1fe2ead7297ca /drivers/regulator/max8997.c
parent11ec7bf001e7bfd37f244042032e15dac2c301bc (diff)
regulator: max8997: limit the number of dvs registers programmed in non-dvs mode
In case the gpio based volatage selection mode is not used for either of buck 1/2/5, then only the BUCKxDVS1 register need to be programmed. So determine whether dvs mode is used and limit the loop count appropriately. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/max8997.c')
-rw-r--r--drivers/regulator/max8997.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index 04d9f29503ad..64cf2ee38f6c 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -941,7 +941,7 @@ static __devinit int max8997_pmic_probe(struct platform_device *pdev)
struct regulator_dev **rdev;
struct max8997_data *max8997;
struct i2c_client *i2c;
- int i, ret, size;
+ int i, ret, size, nr_dvs;
u8 max_buck1 = 0, max_buck2 = 0, max_buck5 = 0;
if (!pdata) {
@@ -973,7 +973,10 @@ static __devinit int max8997_pmic_probe(struct platform_device *pdev)
memcpy(max8997->buck125_gpios, pdata->buck125_gpios, sizeof(int) * 3);
max8997->ignore_gpiodvs_side_effect = pdata->ignore_gpiodvs_side_effect;
- for (i = 0; i < 8; i++) {
+ nr_dvs = (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
+ pdata->buck5_gpiodvs) ? 8 : 1;
+
+ for (i = 0; i < nr_dvs; i++) {
max8997->buck1_vol[i] = ret =
max8997_get_voltage_proper_val(
&buck1245_voltage_map_desc,
@@ -1020,7 +1023,7 @@ static __devinit int max8997_pmic_probe(struct platform_device *pdev)
}
/* Initialize all the DVS related BUCK registers */
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < nr_dvs; i++) {
max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
max8997->buck1_vol[i],
0x3f);