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

Commit 90f44717 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Lee Jones
Browse files

mfd: exynos-lpass: Add runtime PM support 



Convert exisitng lpass-suspend/resume callbacks into runtime PM callbacks.
This way Exynos LPASS driver will be ready for use with power domains
enabled. LPASS will be runtime resumed/suspended as a result of its child
devices runtime PM transitions.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Acked-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent c414df12

drivers/mfd/exynos-lpass.c

+11 −2
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/of.h>

#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/pm_runtime.h>

#include <linux/regmap.h>

#include <linux/soc/samsung/exynos-regs-pmu.h>

#include <linux/types.h>
@@ -133,6 +134,8 @@ static int exynos_lpass_probe(struct platform_device *pdev) 
	}



	platform_set_drvdata(pdev, lpass);

	pm_runtime_set_active(dev);

	pm_runtime_enable(dev);

	exynos_lpass_enable(lpass);



	return of_platform_populate(dev->of_node, NULL, NULL, dev);
@@ -143,6 +146,9 @@ static int exynos_lpass_remove(struct platform_device *pdev) 
	struct exynos_lpass *lpass = platform_get_drvdata(pdev);



	exynos_lpass_disable(lpass);

	pm_runtime_disable(&pdev->dev);

	if (!pm_runtime_status_suspended(&pdev->dev))

		exynos_lpass_disable(lpass);

	regmap_exit(lpass->top);



	return 0;
@@ -166,8 +172,11 @@ static int __maybe_unused exynos_lpass_resume(struct device *dev) 
	return 0;

}



static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend,

					exynos_lpass_resume);

static const struct dev_pm_ops lpass_pm_ops = {

	SET_RUNTIME_PM_OPS(exynos_lpass_suspend, exynos_lpass_resume, NULL)

	SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,

				     pm_runtime_force_resume)

};



static const struct of_device_id exynos_lpass_of_match[] = {

	{ .compatible = "samsung,exynos5433-lpass" },