[PATCH] mmc: stm32_sdmmc2: Use mmc_of_parse() to read host capabilities

[Jaehoon Chung]

On 9/10/20 6:54 AM, Alexandru Gagniuc wrote:
> mmc_of_parse() can populate the 'f_max' and 'host_caps' fields of
> struct mmc_config from devicetree.
> The same logic is duplicated in stm32_sdmmc2_probe(). Use
> mmc_of_parse(), which is more generic.
> 
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me at gmail.com>
> ---
>  drivers/mmc/stm32_sdmmc2.c | 18 ++----------------
>  1 file changed, 2 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/mmc/stm32_sdmmc2.c b/drivers/mmc/stm32_sdmmc2.c
> index 6d50356217..77871d5afc 100644
> --- a/drivers/mmc/stm32_sdmmc2.c
> +++ b/drivers/mmc/stm32_sdmmc2.c
> @@ -676,27 +676,13 @@ static int stm32_sdmmc2_probe(struct udevice *dev)
>  			     GPIOD_IS_IN);
>  
>  	cfg->f_min = 400000;
> -	cfg->f_max = dev_read_u32_default(dev, "max-frequency", 52000000);
>  	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
>  	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
>  	cfg->name = "STM32 SD/MMC";
>  
>  	cfg->host_caps = 0;
> -	if (cfg->f_max > 25000000)
> -		cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
> -
> -	switch (dev_read_u32_default(dev, "bus-width", 1)) {
> -	case 8:
> -		cfg->host_caps |= MMC_MODE_8BIT;
> -		/* fall through */
> -	case 4:
> -		cfg->host_caps |= MMC_MODE_4BIT;
> -		break;
> -	case 1:
> -		break;
> -	default:
> -		pr_err("invalid \"bus-width\" property, force to 1\n");
> -	}
> +	cfg->f_max = 52000000;

cfg->f_max can be also removed?

Best Regards,
Jaehoon Chung

> +	mmc_of_parse(dev, cfg);
>  
>  	upriv->mmc = &plat->mmc;
>  
>