[PATCH] mmc: sdhci-of-dwcmshc: Change DLL_STRBIN_TAPNUM_DEFAULT to 0x4

[Ulf Hansson]

On Mon, 20 Oct 2025 at 03:50, Shawn Lin <shawn.lin at rock-chips.com> wrote:
>
> strbin signal delay under 0x8 configuration is not stable after massive
> test. The recommandation of it should be 0x4.
>
> Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>

Do we need a fixes/stable-tag here too?

Kind regards
Uffe

> ---
>
>  drivers/mmc/host/sdhci-of-dwcmshc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
> index eebd453..5b61401 100644
> --- a/drivers/mmc/host/sdhci-of-dwcmshc.c
> +++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
> @@ -94,7 +94,7 @@
>  #define DLL_TXCLK_TAPNUM_DEFAULT       0x10
>  #define DLL_TXCLK_TAPNUM_90_DEGREES    0xA
>  #define DLL_TXCLK_TAPNUM_FROM_SW       BIT(24)
> -#define DLL_STRBIN_TAPNUM_DEFAULT      0x8
> +#define DLL_STRBIN_TAPNUM_DEFAULT      0x4
>  #define DLL_STRBIN_TAPNUM_FROM_SW      BIT(24)
>  #define DLL_STRBIN_DELAY_NUM_SEL       BIT(26)
>  #define DLL_STRBIN_DELAY_NUM_OFFSET    16
> --
> 2.7.4
>
>