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regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable

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Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2013-03-05 14:16:00 +08:00 committed by Mark Brown
parent 0ac682db5c
commit 51dcdafcb7
2 changed files with 23 additions and 4 deletions
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24
drivers/regulator/core.c
View File

@ -1794,7 +1794,10 @@ int regulator_is_enabled_regmap(struct regulator_dev *rdev)
if (ret != 0)
return ret;
return (val & rdev->desc->enable_mask) != 0;
if (rdev->desc->enable_is_inverted)
return (val & rdev->desc->enable_mask) == 0;
else
return (val & rdev->desc->enable_mask) != 0;
}
EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap);
@ -1809,9 +1812,15 @@ EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap);
*/
int regulator_enable_regmap(struct regulator_dev *rdev)
{
unsigned int val;
if (rdev->desc->enable_is_inverted)
val = 0;
else
val = rdev->desc->enable_mask;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
rdev->desc->enable_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_enable_regmap);
@ -1826,8 +1835,15 @@ EXPORT_SYMBOL_GPL(regulator_enable_regmap);
*/
int regulator_disable_regmap(struct regulator_dev *rdev)
{
unsigned int val;
if (rdev->desc->enable_is_inverted)
val = rdev->desc->enable_mask;
else
val = 0;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, 0);
rdev->desc->enable_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_disable_regmap);

3
include/linux/regulator/driver.h
View File

@ -199,6 +199,8 @@ enum regulator_type {
* output when using regulator_set_voltage_sel_regmap
* @enable_reg: Register for control when using regmap enable/disable ops
* @enable_mask: Mask for control when using regmap enable/disable ops
* @enable_is_inverted: A flag to indicate set enable_mask bits to disable
* when using regulator_enable_regmap and friends APIs.
* @bypass_reg: Register for control when using regmap set_bypass
* @bypass_mask: Mask for control when using regmap set_bypass
*
@ -228,6 +230,7 @@ struct regulator_desc {
unsigned int apply_bit;
unsigned int enable_reg;
unsigned int enable_mask;
bool enable_is_inverted;
unsigned int bypass_reg;
unsigned int bypass_mask;