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

[Jaehoon Chung]

On 07/22/2017 06:22 AM, Marek Vasut wrote:
> 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>

Applied to u-boot-mmc. Sorry for late!

Best Regards,
Jaehoon Chung


> ---
>  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)
>