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Commit a7a453f5 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

regulator: helpers: Add regmap set_soft_start helper 



Add a helper function regulator_set_soft_start_regmap to allow regmap
based regulators to easily enable soft start.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d00b7461

drivers/regulator/helpers.c

+18 −0
Original line number Diff line number Diff line
@@ -445,6 +445,24 @@ int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable) 
}

EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap);



/**

 * regulator_set_soft_start_regmap - Default set_soft_start() using regmap

 *

 * @rdev: device to operate on.

 */

int regulator_set_soft_start_regmap(struct regulator_dev *rdev)

{

	unsigned int val;



	val = rdev->desc->soft_start_val_on;

	if (!val)

		val = rdev->desc->soft_start_mask;



	return regmap_update_bits(rdev->regmap, rdev->desc->soft_start_reg,

				  rdev->desc->soft_start_mask, val);

}

EXPORT_SYMBOL_GPL(regulator_set_soft_start_regmap);



/**

 * regulator_get_bypass_regmap - Default get_bypass() using regmap

 *

include/linux/regulator/driver.h

+8 −0
Original line number Diff line number Diff line
@@ -292,6 +292,10 @@ enum regulator_type { 
 *			   set_active_discharge

 * @active_discharge_reg: Register for control when using regmap

 *			  set_active_discharge

 * @soft_start_reg: Register for control when using regmap set_soft_start

 * @soft_start_mask: Mask for control when using regmap set_soft_start

 * @soft_start_val_on: Enabling value for control when using regmap

 *                     set_soft_start

 *

 * @enable_time: Time taken for initial enable of regulator (in uS).

 * @off_on_delay: guard time (in uS), before re-enabling a regulator
@@ -345,6 +349,9 @@ struct regulator_desc { 
	unsigned int active_discharge_off;

	unsigned int active_discharge_mask;

	unsigned int active_discharge_reg;

	unsigned int soft_start_reg;

	unsigned int soft_start_mask;

	unsigned int soft_start_val_on;



	unsigned int enable_time;
@@ -476,6 +483,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, 
				   unsigned int new_selector);

int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable);

int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable);

int regulator_set_soft_start_regmap(struct regulator_dev *rdev);



int regulator_set_active_discharge_regmap(struct regulator_dev *rdev,

					  bool enable);