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authorShawn Lin <shawn.lin@rock-chips.com>2016-10-12 10:55:55 +0800
committerUlf Hansson <ulf.hansson@linaro.org>2016-11-29 09:00:39 +0100
commitcf5237eff9e0dc8b87bdc5810b869ee37ba971e6 (patch)
treea06f9e337a2676dd8ee9e7e269fae83f54d0a925 /drivers/mmc/host/dw_mmc-exynos.c
parent2c8ae20e6c4909919ec7574a534fdb78f70f98b1 (diff)
downloadop-kernel-dev-cf5237eff9e0dc8b87bdc5810b869ee37ba971e6.zip
op-kernel-dev-cf5237eff9e0dc8b87bdc5810b869ee37ba971e6.tar.gz
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: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc-exynos.c')
-rw-r--r--drivers/mmc/host/dw_mmc-exynos.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 7ab3d74..e2439a1 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -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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