mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume

This will be useful when drivers want to reuse either suspend or
resume callback instead of whole of sdhci_pltfm_pmops.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-cadence.c

@@ -391,24 +391,6 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int sdhci_cdns_suspend(struct device *dev)
-{
-	struct sdhci_host *host = dev_get_drvdata(dev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	int ret;
-
-	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
-		mmc_retune_needed(host->mmc);
-
-	ret = sdhci_suspend_host(host);
-	if (ret)
-		return ret;
-
-	clk_disable_unprepare(pltfm_host->clk);
-
-	return 0;
-}
-
 static int sdhci_cdns_resume(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
@@ -438,7 +420,7 @@ static int sdhci_cdns_resume(struct device *dev)
 #endif
 
 static const struct dev_pm_ops sdhci_cdns_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(sdhci_cdns_suspend, sdhci_cdns_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(sdhci_pltfm_suspend, sdhci_cdns_resume)
 };
 
 static const struct of_device_id sdhci_cdns_match[] = {

drivers/mmc/host/sdhci-pltfm.c

@@ -209,7 +209,7 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
 EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
 
 #ifdef CONFIG_PM_SLEEP
-static int sdhci_pltfm_suspend(struct device *dev)
+int sdhci_pltfm_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -226,8 +226,9 @@ static int sdhci_pltfm_suspend(struct device *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
 
-static int sdhci_pltfm_resume(struct device *dev)
+int sdhci_pltfm_resume(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -243,6 +244,7 @@ static int sdhci_pltfm_resume(struct device *dev)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);
 #endif
 
 const struct dev_pm_ops sdhci_pltfm_pmops = {

drivers/mmc/host/sdhci-pltfm.h

@@ -109,6 +109,8 @@ static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host)
 	return host->private;
 }
 
+int sdhci_pltfm_suspend(struct device *dev);
+int sdhci_pltfm_resume(struct device *dev);
 extern const struct dev_pm_ops sdhci_pltfm_pmops;
 
 #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */