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....@ingics.com> Reviewed-by: Haojian Zhuang <haojian.zhu...@gmail.com> --- This patch was sent on https://lkml.org/lkml/2013/2/16/14. This resend is against linux-next tree (20130305). drivers/regulator/core.c | 24 ++++++++++++++++++++---- include/linux/regulator/driver.h | 3 +++ 2 files changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cea0217..d420c8f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1905,7 +1905,10 @@ 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); @@ -1920,9 +1923,15 @@ 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); @@ -1937,8 +1946,15 @@ 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); diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index a741bb6..5e2d13d 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -200,6 +200,8 @@ 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 * @@ -229,6 +231,7 @@ 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; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
