UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Axel Lin 2013-04-24 11:51:12 +08:00 committed by Mark Brown
parent 86b139f0f3
commit 78040b630f
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/regulator/mc13892-regulator.c
View File

@ -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;
}
}