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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-10-29 12:14:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-31 12:42:52 +0000 |
| commit | 78ce612860ce80edbec9171b4a786ce131a9631c (patch) | |
| tree | 2045b94a7aa9ed8af775b90dde80ccd260c9ceb6 /drivers/regulator/max77686.c | |
| parent | 68c5d1868bfed0643eb4d2c608cead41f6bf4132 (diff) | |
| download | talos-obmc-linux-78ce612860ce80edbec9171b4a786ce131a9631c.tar.gz talos-obmc-linux-78ce612860ce80edbec9171b4a786ce131a9631c.zip | |
regulator: max77686: Add suspend disable for some LDOs
Some LDOs of Maxim 77686 PMIC support disabling during system suspend
(LDO{2,6,7,8,10,11,12,14,15,16}). This was already implemented as part
of set_suspend_mode function. In that case the mode was one of:
- disable,
- normal mode,
- low power mode.
However there are no bindings for setting the mode during suspend.
Add suspend disable for LDO regulators supporting this. Re-use existing
max77686_buck_set_suspend_disable() function. This helps reducing
energy consumption during system sleep.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/max77686.c')
| -rw-r--r-- | drivers/regulator/max77686.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 0c1541754e8c..09b0d8c20a9d 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -99,8 +99,8 @@ static unsigned int max77686_get_opmode_shift(int id) } } -/* Some BUCKS supports Normal[ON/OFF] mode during suspend */ -static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev) +/* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */ +static int max77686_set_suspend_disable(struct regulator_dev *rdev) { unsigned int val, shift; struct max77686_data *max77686 = rdev_get_drvdata(rdev); @@ -195,6 +195,9 @@ static int max77686_enable(struct regulator_dev *rdev) shift = max77686_get_opmode_shift(id); + if (max77686->opmode[id] == MAX77686_OFF_PWRREQ) + max77686->opmode[id] = MAX77686_NORMAL; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, rdev->desc->enable_mask, max77686->opmode[id] << shift); @@ -247,6 +250,7 @@ static struct regulator_ops max77686_ldo_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_suspend_mode = max77686_ldo_set_suspend_mode, + .set_suspend_disable = max77686_set_suspend_disable, }; static struct regulator_ops max77686_buck1_ops = { @@ -258,7 +262,7 @@ static struct regulator_ops max77686_buck1_ops = { .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_suspend_disable = max77686_buck_set_suspend_disable, + .set_suspend_disable = max77686_set_suspend_disable, }; static struct regulator_ops max77686_buck_dvs_ops = { @@ -271,7 +275,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = max77686_set_ramp_delay, - .set_suspend_disable = max77686_buck_set_suspend_disable, + .set_suspend_disable = max77686_set_suspend_disable, }; #define regulator_desc_ldo(num) { \ |
