Commit cf5237ef authored by Shawn Lin's avatar Shawn Lin Committed by Ulf Hansson
Browse files

mmc: dw_mmc-exynos: deploy runtime PM facilities 



Let's migrate it to use runtime PM and remove the system
PM callback from this driver. With this patch, it could
handle system PM properly and could also use runtime PM
if we enable it.

Signed-off-by: default avatarShawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: default avatarJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 2c8ae20e

drivers/mmc/host/dw_mmc-exynos.c

+10 −14
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/mmc/mmc.h>

#include <linux/of.h>

#include <linux/of_gpio.h>

#include <linux/pm_runtime.h>

#include <linux/slab.h>



#include "dw_mmc.h"
@@ -161,20 +162,13 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing) 
		set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags);

}



#ifdef CONFIG_PM_SLEEP

static int dw_mci_exynos_suspend(struct device *dev)

{

	struct dw_mci *host = dev_get_drvdata(dev);



	return dw_mci_suspend(host);

}



static int dw_mci_exynos_resume(struct device *dev)

#ifdef CONFIG_PM

static int dw_mci_exynos_runtime_resume(struct device *dev)

{

	struct dw_mci *host = dev_get_drvdata(dev);



	dw_mci_exynos_config_smu(host);

	return dw_mci_resume(host);

	return dw_mci_runtime_resume(dev);

}



/**
@@ -211,10 +205,8 @@ static int dw_mci_exynos_resume_noirq(struct device *dev) 
	return 0;

}

#else

#define dw_mci_exynos_suspend		NULL

#define dw_mci_exynos_resume		NULL

#define dw_mci_exynos_resume_noirq	NULL

#endif /* CONFIG_PM_SLEEP */

#endif /* CONFIG_PM */



static void dw_mci_exynos_config_hs400(struct dw_mci *host, u32 timing)

{
@@ -531,7 +523,11 @@ static int dw_mci_exynos_probe(struct platform_device *pdev) 
}



static const struct dev_pm_ops dw_mci_exynos_pmops = {

	SET_SYSTEM_SLEEP_PM_OPS(dw_mci_exynos_suspend, dw_mci_exynos_resume)

	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,

				pm_runtime_force_resume)

	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,

			   dw_mci_exynos_runtime_resume,

			   NULL)

	.resume_noirq = dw_mci_exynos_resume_noirq,

	.thaw_noirq = dw_mci_exynos_resume_noirq,

	.restore_noirq = dw_mci_exynos_resume_noirq,

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