1 files changed, 30 insertions, 9 deletions

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 8059d7248..6d485b5fa 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1250,10 +1250,24 @@ clock_set:
 }
 EXPORT_SYMBOL_GPL(sdhci_set_clock);
 
-static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
-			    unsigned short vdd)
+static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode,
+				unsigned short vdd)
 {
 	struct mmc_host *mmc = host->mmc;
+
+	spin_unlock_irq(&host->lock);
+	mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+	spin_lock_irq(&host->lock);
+
+	if (mode != MMC_POWER_OFF)
+		sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL);
+	else
+		sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
+}
+
+void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
+		     unsigned short vdd)
+{
 	u8 pwr = 0;
 
 	if (mode != MMC_POWER_OFF) {
@@ -1285,7 +1299,6 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
 		sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
 		if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)
 			sdhci_runtime_pm_bus_off(host);
-		vdd = 0;
 	} else {
 		/*
 		 * Spec says that we should clear the power reg before setting
@@ -1316,12 +1329,20 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
 		if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER)
 			mdelay(10);
 	}
+}
+EXPORT_SYMBOL_GPL(sdhci_set_power);
 
-	if (!IS_ERR(mmc->supply.vmmc)) {
-		spin_unlock_irq(&host->lock);
-		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
-		spin_lock_irq(&host->lock);
-	}
+static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode,
+			      unsigned short vdd)
+{
+	struct mmc_host *mmc = host->mmc;
+
+	if (host->ops->set_power)
+		host->ops->set_power(host, mode, vdd);
+	else if (!IS_ERR(mmc->supply.vmmc))
+		sdhci_set_power_reg(host, mode, vdd);
+	else
+		sdhci_set_power(host, mode, vdd);
 }
 
 /*****************************************************************************\
@@ -1471,7 +1492,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
 		}
 	}
 
-	sdhci_set_power(host, ios->power_mode, ios->vdd);
+	__sdhci_set_power(host, ios->power_mode, ios->vdd);
 
 	if (host->ops->platform_send_init_74_clocks)
 		host->ops->platform_send_init_74_clocks(host, ios->power_mode);