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authorAxel Lin <axel.lin@ingics.com>2013-04-24 07:51:12 +0400
committerMark Brown <broonie@sirena.org.uk>2013-04-28 05:13:02 +0400
commit78040b630f28298e0ecb56bf1bc53c7976314eab (patch)
tree7fa82072f3a36265e20bd76343c81e4b44a6012c /drivers/regulator
parent86b139f0f3441dfcb32a095cdc2ffe88c13c8ed0 (diff)
downloadlinux-78040b630f28298e0ecb56bf1bc53c7976314eab.tar.xz
regulator: mc13892: Fix MC13892_SWITCHERS0_SWxHI bit in set_voltage_sel
It is necessary to clear MC13892_SWITCHERS0_SWxHI bit when set voltage to the voltage range from 1100000 to 1375000. Leaving MC13892_SWITCHERS0_SWxHI bit untouched may result in wrong voltage setting. For example, currently switch voltage from 1400000 to 1300000 will set the voltage to 1800000 because the HI bit is still set. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@sirena.org.uk>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/mc13892-regulator.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 364ddd1c8591..b8d35ec598ea 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -465,13 +465,13 @@ static int mc13892_sw_regulator_set_voltage_sel(struct regulator_dev *rdev,
*/
if (mc13892_regulators[id].vsel_reg != MC13892_SWITCHERS0) {
+ mask |= MC13892_SWITCHERS0_SWxHI;
+
if (volt > 1375000) {
reg_value -= MC13892_SWxHI_SEL_OFFSET;
reg_value |= MC13892_SWITCHERS0_SWxHI;
- mask |= MC13892_SWITCHERS0_SWxHI;
- } else if (volt < 1100000) {
+ } else {
reg_value &= ~MC13892_SWITCHERS0_SWxHI;
- mask |= MC13892_SWITCHERS0_SWxHI;
}
}