Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c645a598 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Kukjin Kim
Browse files

ARM: EXYNOS: Call regulator core suspend prepare and finish functions 



The regulator framework has a set of helpers functions to be used when
the system is entering and leaving from suspend but these are not called
on Exynos platforms. This means that the .set_suspend_* function handlers
defined by regulator drivers are not called when the system is suspended.

Suggested-by: default avatarDoug Anderson <dianders@chromium.org>
Signed-off-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: default avatarDoug Anderson <dianders@chromium.org>
Reviewed-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent adc548d7

arch/arm/mach-exynos/suspend.c

+23 −0
Original line number Original line Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/io.h>

#include <linux/io.h>

#include <linux/irqchip/arm-gic.h>

#include <linux/irqchip/arm-gic.h>

#include <linux/err.h>

#include <linux/err.h>

#include <linux/regulator/machine.h>





#include <asm/cacheflush.h>

#include <asm/cacheflush.h>

#include <asm/hardware/cache-l2x0.h>

#include <asm/hardware/cache-l2x0.h>
@@ -443,6 +444,22 @@ static int exynos_suspend_enter(suspend_state_t state) 




static int exynos_suspend_prepare(void)

static int exynos_suspend_prepare(void)

{

{

	int ret;



	/*

	 * REVISIT: It would be better if struct platform_suspend_ops

	 * .prepare handler get the suspend_state_t as a parameter to

	 * avoid hard-coding the suspend to mem state. It's safe to do

	 * it now only because the suspend_valid_only_mem function is

	 * used as the .valid callback used to check if a given state

	 * is supported by the platform anyways.

	 */

	ret = regulator_suspend_prepare(PM_SUSPEND_MEM);

	if (ret) {

		pr_err("Failed to prepare regulators for suspend (%d)\n", ret);

		return ret;

	}



	s3c_pm_check_prepare();

	s3c_pm_check_prepare();





	return 0;

	return 0;
@@ -450,7 +467,13 @@ static int exynos_suspend_prepare(void) 




static void exynos_suspend_finish(void)

static void exynos_suspend_finish(void)

{

{

	int ret;



	s3c_pm_check_cleanup();

	s3c_pm_check_cleanup();



	ret = regulator_suspend_finish();

	if (ret)

		pr_warn("Failed to resume regulators from suspend (%d)\n", ret);

}

}





static const struct platform_suspend_ops exynos_suspend_ops = {

static const struct platform_suspend_ops exynos_suspend_ops = {