From: Richard Fitzgerald <[email protected]> For regulators that support HI_PWR we need to ensure that switching to 1.8v allows time for the regulator to reach that voltage.
Signed-off-by: Richard Fitzgerald <[email protected]> Signed-off-by: Charles Keepax <[email protected]> --- drivers/regulator/arizona-ldo1.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index a1d07d3..9474597 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -113,6 +113,17 @@ static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev) return (val & ARIZONA_LDO1_VSEL_MASK) >> ARIZONA_LDO1_VSEL_SHIFT; } +static int arizona_ldo1_hc_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector) +{ + /* if moving to 1.8v allow time for it to reach voltage */ + if (new_selector == rdev->desc->n_voltages - 1) + return 25; + else + return 0; +} + static struct regulator_ops arizona_ldo1_hc_ops = { .list_voltage = arizona_ldo1_hc_list_voltage, .map_voltage = arizona_ldo1_hc_map_voltage, @@ -120,6 +131,7 @@ static struct regulator_ops arizona_ldo1_hc_ops = { .set_voltage_sel = arizona_ldo1_hc_set_voltage_sel, .get_bypass = regulator_get_bypass_regmap, .set_bypass = regulator_set_bypass_regmap, + .set_voltage_time_sel = arizona_ldo1_hc_set_voltage_time_sel, }; static const struct regulator_desc arizona_ldo1_hc = { -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
