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Commit 354794da authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Mark Brown
Browse files

regulator: helper: Add helper to configure active-discharge using regmap 



Add helper function to set the state of active-discharge of
regulator using regmap. The HW regulator driver can directly
use this by providing the necessary information in the regulator
descriptor.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 670666b9

drivers/regulator/helpers.c

+23 −0
Original line number Diff line number Diff line
@@ -465,3 +465,26 @@ int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) 
	return 0;

}

EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap);



/**

 * regulator_set_active_discharge_regmap - Default set_active_discharge()

 *					   using regmap

 *

 * @rdev: device to operate on.

 * @enable: state to set, 0 to disable and 1 to enable.

 */

int regulator_set_active_discharge_regmap(struct regulator_dev *rdev,

					  bool enable)

{

	unsigned int val;



	if (enable)

		val = rdev->desc->active_discharge_on;

	else

		val = rdev->desc->active_discharge_off;



	return regmap_update_bits(rdev->regmap,

				  rdev->desc->active_discharge_reg,

				  rdev->desc->active_discharge_mask, val);

}

EXPORT_SYMBOL_GPL(regulator_set_active_discharge_regmap);

include/linux/regulator/driver.h

+14 −0
Original line number Diff line number Diff line
@@ -269,6 +269,14 @@ enum regulator_type { 
 * @bypass_mask: Mask for control when using regmap set_bypass

 * @bypass_val_on: Enabling value for control when using regmap set_bypass

 * @bypass_val_off: Disabling value for control when using regmap set_bypass

 * @active_discharge_off: Enabling value for control when using regmap

 *			  set_active_discharge

 * @active_discharge_on: Disabling value for control when using regmap

 *			 set_active_discharge

 * @active_discharge_mask: Mask for control when using regmap

 *			   set_active_discharge

 * @active_discharge_reg: Register for control when using regmap

 *			  set_active_discharge

 *

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

 * @off_on_delay: guard time (in uS), before re-enabling a regulator
@@ -318,6 +326,10 @@ struct regulator_desc { 
	unsigned int bypass_mask;

	unsigned int bypass_val_on;

	unsigned int bypass_val_off;

	unsigned int active_discharge_on;

	unsigned int active_discharge_off;

	unsigned int active_discharge_mask;

	unsigned int active_discharge_reg;



	unsigned int enable_time;
@@ -450,6 +462,8 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, 
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_active_discharge_regmap(struct regulator_dev *rdev,

					  bool enable);

void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data);



#endif