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Commit b7cde707 authored by Chanwoo Choi's avatar Chanwoo Choi Committed by Lee Jones
Browse files

mfd: sec-core: Prepare regulators for suspend state to reduce power-consumption 



This patch use regulator_suspend_prepare() function to prepare the proper state
of regulators for suspend state to remove un-necessary leakage power-consumption.

Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent b264fc70

drivers/mfd/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -587,6 +587,7 @@ config MFD_SEC_CORE 
	select MFD_CORE

	select REGMAP_I2C

	select REGMAP_IRQ

	select REGULATOR

	help

	 Support for the Samsung Electronics MFD series.

	 This driver provides common support for accessing the device,

drivers/mfd/sec-core.c

+10 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <linux/mfd/samsung/s2mpu02.h>

#include <linux/mfd/samsung/s5m8763.h>

#include <linux/mfd/samsung/s5m8767.h>

#include <linux/regulator/machine.h>

#include <linux/regmap.h>



static const struct mfd_cell s5m8751_devs[] = {
@@ -430,6 +431,15 @@ static int sec_pmic_suspend(struct device *dev) 
	 */

	disable_irq(sec_pmic->irq);



	switch (sec_pmic->device_type) {

	case S2MPS14X:

	case S2MPU02:

		regulator_suspend_prepare(PM_SUSPEND_MEM);

		break;

	default:

		break;

	}



	return 0;

}