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Commit 989cbba1 authored by Tirupathi Reddy's avatar Tirupathi Reddy Committed by Ashay Jaiswal
Browse files

regulator: cpr-regulator: specify a list_corner_voltage callback function 



Define a list_corner_voltage callback function for the
cpr-regulator driver so that consumers can determine the CPR
ceiling voltage for each voltage corner.

Change-Id: I14ad513191d28a0f0ce66fa957983c1fc4a2de0d
Signed-off-by: default avatarTirupathi Reddy <tirupath@codeaurora.org>
parent 264fe994

drivers/regulator/cpr-regulator.c

+23 −0
Original line number Diff line number Diff line
@@ -1117,12 +1117,35 @@ static int cpr_regulator_get_voltage(struct regulator_dev *rdev) 
	return cpr_vreg->corner;

}



/**

 * cpr_regulator_list_corner_voltage() - return the ceiling voltage mapped to

 *			the specified voltage corner

 * @rdev:		Regulator device pointer for the cpr-regulator

 * @corner:		Voltage corner

 *

 * This function is passed as a callback function into the regulator ops that

 * are registered for each cpr-regulator device.

 *

 * Return: voltage value in microvolts or -EINVAL if the corner is out of range

 */

static int cpr_regulator_list_corner_voltage(struct regulator_dev *rdev,

		int corner)

{

	struct cpr_regulator *cpr_vreg = rdev_get_drvdata(rdev);



	if (corner >= CPR_CORNER_MIN && corner <= cpr_vreg->num_corners)

		return cpr_vreg->ceiling_volt[corner];

	else

		return -EINVAL;

}



static struct regulator_ops cpr_corner_ops = {

	.enable			= cpr_regulator_enable,

	.disable		= cpr_regulator_disable,

	.is_enabled		= cpr_regulator_is_enabled,

	.set_voltage		= cpr_regulator_set_voltage_op,

	.get_voltage		= cpr_regulator_get_voltage,

	.list_corner_voltage	= cpr_regulator_list_corner_voltage,

};



#ifdef CONFIG_PM