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regulator: max77686: Store opmode non-shifted 

Introduce simple helper for calculating the shift for OPMODE field in
registers. This allows storing the current value of opmode in
non-shifted form and simplifies a little set_suspend_disable and enable
functions. Additionally this will allow adding support LDOs to the
existing set_suspend_disable function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2014-10-27 13:11:48 +01:00 committed by Mark Brown
parent 7636f19c26
commit 68c5d1868b
1 changed files with 34 additions and 15 deletions
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49
drivers/regulator/max77686.c
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@ -85,20 +85,32 @@ struct max77686_data {
unsigned int opmode[MAX77686_REGULATORS];
};
static unsigned int max77686_get_opmode_shift(int id)
{
switch (id) {
case MAX77686_BUCK1:
case MAX77686_BUCK5 ... MAX77686_BUCK9:
return 0;
case MAX77686_BUCK2 ... MAX77686_BUCK4:
return MAX77686_OPMODE_BUCK234_SHIFT;
default:
/* all LDOs */
return MAX77686_OPMODE_SHIFT;
}
}
/* Some BUCKS supports Normal[ON/OFF] mode during suspend */
static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int val;
unsigned int val, shift;
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
if (id == MAX77686_BUCK1)
val = MAX77686_OFF_PWRREQ;
else
val = MAX77686_OFF_PWRREQ << MAX77686_OPMODE_BUCK234_SHIFT;
shift = max77686_get_opmode_shift(id);
val = MAX77686_OFF_PWRREQ;
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
rdev->desc->enable_mask, val << shift);
if (ret)
return ret;
@ -120,10 +132,10 @@ static int max77686_set_suspend_mode(struct regulator_dev *rdev,
switch (mode) {
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77686_LDO_LOWPOWER_PWRREQ << MAX77686_OPMODE_SHIFT;
val = MAX77686_LDO_LOWPOWER_PWRREQ;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = MAX77686_NORMAL << MAX77686_OPMODE_SHIFT;
val = MAX77686_NORMAL;
break;
default:
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
@ -132,7 +144,8 @@ static int max77686_set_suspend_mode(struct regulator_dev *rdev,
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
rdev->desc->enable_mask,
val << MAX77686_OPMODE_SHIFT);
if (ret)
return ret;
@ -150,13 +163,13 @@ static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
switch (mode) {
case REGULATOR_MODE_STANDBY: /* switch off */
val = MAX77686_OFF_PWRREQ << MAX77686_OPMODE_SHIFT;
val = MAX77686_OFF_PWRREQ;
break;
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77686_LDO_LOWPOWER_PWRREQ << MAX77686_OPMODE_SHIFT;
val = MAX77686_LDO_LOWPOWER_PWRREQ;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = MAX77686_NORMAL << MAX77686_OPMODE_SHIFT;
val = MAX77686_NORMAL;
break;
default:
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
@ -165,7 +178,8 @@ static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
rdev->desc->enable_mask,
val << MAX77686_OPMODE_SHIFT);
if (ret)
return ret;
@ -176,10 +190,14 @@ static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
static int max77686_enable(struct regulator_dev *rdev)
{
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
unsigned int shift;
int id = rdev_get_id(rdev);
shift = max77686_get_opmode_shift(id);
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
max77686->opmode[rdev_get_id(rdev)]);
max77686->opmode[id] << shift);
}
static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
@ -495,7 +513,8 @@ static int max77686_pmic_probe(struct platform_device *pdev)
config.init_data = pdata->regulators[i].initdata;
config.of_node = pdata->regulators[i].of_node;
max77686->opmode[i] = regulators[i].enable_mask;
max77686->opmode[i] = regulators[i].enable_mask >>
max77686_get_opmode_shift(i);
rdev = devm_regulator_register(&pdev->dev,
&regulators[i], &config);
if (IS_ERR(rdev)) {