linux-kernel - Re: [PATCH v1 1/2] mmc: meson-mx-sdhc: Set MANUAL

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Date:   Tue, 14 Dec 2021 19:35:30 +0100
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     linux-mmc@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 1/2] mmc: meson-mx-sdhc: Set MANUAL_STOP for
 multi-block SDIO commands

Hi Ulf,

On Tue, Dec 14, 2021 at 2:21 PM Ulf Hansson <ulf.hansson@...aro.org> wrote:
[...]
> > +
>
> Maybe add a comment to explain a bit about this workaround here?
sure, I'll add a paragraph for v2 because this workaround/fix is not obvious

> > +               manual_stop = cmd->data->blocks > 1 &&
> > +                             (cmd->opcode == SD_IO_RW_DIRECT ||
>
> SD_IO_RW_DIRECT doesn't have cmd->data, so checking for that command
> doesn't make sense.
This also means that you found a bug in the vendor driver :-)
I'll drop SD_IO_RW_DIRECT, do another round of testing and then send
an updated version.

Thank you for taking a closer look!


Best regards,
Martin