mmc: core: Drop the unused mmc_power_save|restore_host()

The last user of mmc_power_save|restore_host() APIs is gone, hence let's
drop them. Drop also the corresponding bus_ops callback,
->power_save|restore() as those becomes redundant.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Eyal Reizer <eyalreizer@gmail.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/core.c

@@ -2716,52 +2716,6 @@ void mmc_stop_host(struct mmc_host *host)
 	mmc_release_host(host);
 }
 
-int mmc_power_save_host(struct mmc_host *host)
-{
-	int ret = 0;
-
-	pr_debug("%s: %s: powering down\n", mmc_hostname(host), __func__);
-
-	mmc_bus_get(host);
-
-	if (!host->bus_ops || host->bus_dead) {
-		mmc_bus_put(host);
-		return -EINVAL;
-	}
-
-	if (host->bus_ops->power_save)
-		ret = host->bus_ops->power_save(host);
-
-	mmc_bus_put(host);
-
-	mmc_power_off(host);
-
-	return ret;
-}
-EXPORT_SYMBOL(mmc_power_save_host);
-
-int mmc_power_restore_host(struct mmc_host *host)
-{
-	int ret;
-
-	pr_debug("%s: %s: powering up\n", mmc_hostname(host), __func__);
-
-	mmc_bus_get(host);
-
-	if (!host->bus_ops || host->bus_dead) {
-		mmc_bus_put(host);
-		return -EINVAL;
-	}
-
-	mmc_power_up(host, host->card->ocr);
-	ret = host->bus_ops->power_restore(host);
-
-	mmc_bus_put(host);
-
-	return ret;
-}
-EXPORT_SYMBOL(mmc_power_restore_host);
-
 #ifdef CONFIG_PM_SLEEP
 /* Do the card removal on suspend if card is assumed removeable
  * Do that in pm notifier while userspace isn't yet frozen, so we will be able

drivers/mmc/core/core.h

@@ -28,8 +28,6 @@ struct mmc_bus_ops {
 	int (*resume)(struct mmc_host *);
 	int (*runtime_suspend)(struct mmc_host *);
 	int (*runtime_resume)(struct mmc_host *);
-	int (*power_save)(struct mmc_host *);
-	int (*power_restore)(struct mmc_host *);
 	int (*alive)(struct mmc_host *);
 	int (*shutdown)(struct mmc_host *);
 	int (*hw_reset)(struct mmc_host *);

drivers/mmc/core/sdio.c

@@ -1076,7 +1076,6 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
 	.resume = mmc_sdio_resume,
 	.runtime_suspend = mmc_sdio_runtime_suspend,
 	.runtime_resume = mmc_sdio_runtime_resume,
-	.power_restore = mmc_sdio_power_restore,
 	.alive = mmc_sdio_alive,
 	.hw_reset = mmc_sdio_hw_reset,
 	.sw_reset = mmc_sdio_sw_reset,

include/linux/mmc/host.h

@@ -481,9 +481,6 @@ static inline void *mmc_priv(struct mmc_host *host)
 #define mmc_classdev(x)	(&(x)->class_dev)
 #define mmc_hostname(x)	(dev_name(&(x)->class_dev))
 
-int mmc_power_save_host(struct mmc_host *host);
-int mmc_power_restore_host(struct mmc_host *host);
-
 void mmc_detect_change(struct mmc_host *, unsigned long delay);
 void mmc_request_done(struct mmc_host *, struct mmc_request *);
 void mmc_command_done(struct mmc_host *host, struct mmc_request *mrq);