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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>
This commit is contained in:
Kishon Vijay Abraham I 2018-01-30 16:01:45 +01:00 committed by Jaehoon Chung
parent 42182c9b9c
commit 90321dce0d
1 changed files with 6 additions and 0 deletions
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6
drivers/mmc/omap_hsmmc.c
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@ -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_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct mmc *mmc = upriv->mmc; struct mmc *mmc = upriv->mmc;
#endif #endif
struct hsmmc *mmc_base = priv->base_addr;
if (priv->bus_width != mmc->bus_width) if (priv->bus_width != mmc->bus_width)
omap_hsmmc_set_bus_width(mmc); omap_hsmmc_set_bus_width(mmc);
@ -1214,6 +1215,11 @@ static int omap_hsmmc_set_ios(struct udevice *dev)
if (priv->clock != mmc->clock) if (priv->clock != mmc->clock)
omap_hsmmc_set_clock(mmc); 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 CONFIG_IS_ENABLED(DM_MMC)
if (priv->mode != mmc->selected_mode) if (priv->mode != mmc->selected_mode)
omap_hsmmc_set_timing(mmc); omap_hsmmc_set_timing(mmc);