mmc: sdhci: Export sdhci_enable_sdio_irq() from sdhci.c

Export sdhci_enable_sdio_irq() from sdhci.c.
Thus vendor SDHC driver can implement its specific SDIO irq
control.
Signed-off-by: Hu Ziji <huziji@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci.c

@@ -1832,7 +1832,7 @@ static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)
 	}
 }
 
-static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
+void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
 {
 	struct sdhci_host *host = mmc_priv(mmc);
 	unsigned long flags;
@@ -1852,6 +1852,7 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
 	if (!enable)
 		pm_runtime_put_noidle(host->mmc->parent);
 }
+EXPORT_SYMBOL_GPL(sdhci_enable_sdio_irq);
 
 int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
 				      struct mmc_ios *ios)

drivers/mmc/host/sdhci.h

@@ -706,6 +706,7 @@ int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
 void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
 int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
 				      struct mmc_ios *ios);
+void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable);
 
 #ifdef CONFIG_PM
 int sdhci_suspend_host(struct sdhci_host *host);