mmc: omap_hsmmc: allow mmc clock to be gated

mmc core has defined a new parameter *clk_disable* to gate the clock.
Disable the clock here if *clk_disable* is set.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 71608d18e20b7d35c135d462d1353e47f6f44365..0e80420d8bdbe999d3d06d11a0c73e84cc23438b 100644 (file)
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -1207,6 +1207,7 @@ static int omap_hsmmc_set_ios(struct udevice *dev)
        struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
        struct mmc *mmc = upriv->mmc;
 #endif
+       struct hsmmc *mmc_base = priv->base_addr;
 
        if (priv->bus_width != mmc->bus_width)
                omap_hsmmc_set_bus_width(mmc);
@@ -1214,6 +1215,11 @@ static int omap_hsmmc_set_ios(struct udevice *dev)
        if (priv->clock != mmc->clock)
                omap_hsmmc_set_clock(mmc);
 
+       if (mmc->clk_disable)
+               omap_hsmmc_stop_clock(mmc_base);
+       else
+               omap_hsmmc_start_clock(mmc_base);
+
 #if CONFIG_IS_ENABLED(DM_MMC)
        if (priv->mode != mmc->selected_mode)
                omap_hsmmc_set_timing(mmc);