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

[Alexey Charkov]

Hi Shawn,

On Mon, Oct 20, 2025 at 5:00 PM 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>
> ---
>
>  drivers/mmc/host/sdhci-of-dwcmshc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks a lot for this patch! With this applied, I'm finally getting
stable eMMC operation on a TouchFly CX3576AN board (based on the
Rockchip RK3576) I'm currently working on. Note that I've also applied
Sebastian's CQE patches [1], but the controller still kept hanging up
without your patch applied in addition. HS400 and CQE seem to work
well now.

My eMMC module identifies itself as follows:
name:SCA32G
manfid:0x0000df
hwrev:0x0
fwrev:0x100050514002b300
oemid:0x0118
rev:0x8
cmdq_en:1

So,
Tested-by: Alexey Charkov <alchark at gmail.com>

Best regards,
Alexey

[1] https://lore.kernel.org/linux-rockchip/20251014-rockchip-emmc-cqe-support-v1-0-918f03de0cb1@collabora.com/