[U-Boot] [PATCH 3/3] mmc: sd_sdhi: Enable clock using clock framework

[Nobuhiro Iwamatsu]

Hi,

2017-07-22 6:22 GMT+09:00 Marek Vasut <marek.vasut at gmail.com>:
> Since we now have clock driver for the RCar Gen3 , add support for
> enabling the clock into the SH SDHI driver to prevent hacks in the
> board files.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Cc: Jaehoon Chung <jh80.chung at samsung.com>

Reviewed-by: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>

> ---
>  drivers/mmc/sh_sdhi.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
> index 3c5616e507..eef061abb2 100644
> --- a/drivers/mmc/sh_sdhi.c
> +++ b/drivers/mmc/sh_sdhi.c
> @@ -20,6 +20,7 @@
>  #include <linux/sizes.h>
>  #include <asm/arch/rmobile.h>
>  #include <asm/arch/sh_sdhi.h>
> +#include <clk.h>
>
>  #define DRIVER_NAME "sh-sdhi"
>
> @@ -824,8 +825,10 @@ static int sh_sdhi_dm_probe(struct udevice *dev)
>         struct sh_sdhi_plat *plat = dev_get_platdata(dev);
>         struct sh_sdhi_host *host = dev_get_priv(dev);
>         struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
> +       struct clk sh_sdhi_clk;
>         const u32 quirks = dev_get_driver_data(dev);
>         fdt_addr_t base;
> +       int ret;
>
>         base = devfdt_get_addr(dev);
>         if (base == FDT_ADDR_T_NONE)
> @@ -835,6 +838,18 @@ static int sh_sdhi_dm_probe(struct udevice *dev)
>         if (!host->addr)
>                 return -ENOMEM;
>
> +       ret = clk_get_by_index(dev, 0, &sh_sdhi_clk);
> +       if (ret) {
> +               debug("failed to get clock, ret=%d\n", ret);
> +               return ret;
> +       }
> +
> +       ret = clk_enable(&sh_sdhi_clk);
> +       if (ret) {
> +               debug("failed to enable clock, ret=%d\n", ret);
> +               return ret;
> +       }
> +
>         host->quirks = quirks;
>
>         if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF)
> --
> 2.11.0
>



-- 
Nobuhiro Iwamatsu
   iwamatsu at {nigauri.org / debian.org}
   GPG ID: 40AD1FA6