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mmc: dw_mmc-pltfm: 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>
This commit is contained in:
Shawn Lin 2016-10-12 10:56:46 +08:00 committed by Ulf Hansson
parent 53b2728811
commit ee2112be41
1 changed files with 8 additions and 20 deletions
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28
drivers/mmc/host/dw_mmc-pltfm.c
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@ -16,6 +16,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
@ -58,26 +59,13 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
}
EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
#ifdef CONFIG_PM_SLEEP
/*
* TODO: we should probably disable the clock to the card in the suspend path.
*/
static int dw_mci_pltfm_suspend(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
return dw_mci_suspend(host);
}
static int dw_mci_pltfm_resume(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
return dw_mci_resume(host);
}
#endif /* CONFIG_PM_SLEEP */
SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
const struct dev_pm_ops dw_mci_pltfm_pmops = {
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
dw_mci_runtime_resume,
NULL)
};
EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
static const struct of_device_id dw_mci_pltfm_match[] = {