Re: [PATCH v2] mmc: core: apply NO_CMD23 quirk to an ATP card

[Christoph Fritz <chf.fritz@googlemail.com>]

Hi Shawn and Ulf

On Tue, 2017-09-26 at 08:56 +0800, Shawn Lin wrote:
> Back to $subject patch, It still need to verify this conclusion on other
> platforms or get acknowledgement from the vendor.

to quote myself:

On Sat, 2017-09-23 at 21:51 +0200, Christoph Fritz wrote:
> > SoC am335x (omap_hsmmc) works fine because it lacks CMD23 host support.
> > My RK3288 board supports only micro-SD cards. If you want me to, I could
> > get an adapter (micro-SD -> SD) but the shipping takes ~40 days.

Finally I got this microSD to SD adapter to test the ATP card on RK3288
platform too. As expected, card fails without the patch:

 $ dd if=/dev/urandom of=./test bs=1M count=10

does freeze system without any response

So I can verify failing CMD23 behaviour on imx6 and rk3288 running
kernel 4.14. Applying the patch does fix the issue on both platforms.

Could you queue up this patch now?

Thanks
  -- Christoph