Re: [PATCH] mmc: sdhci-omap: Disable MMC_CAP_AGGRESSIVE_PM for eMMC/SD

[Ulf Hansson]

On Sun, 16 Mar 2025 at 21:54, Robert Nelson <robertcnelson@xxxxxxxxx> wrote:
>
> On Wed, Mar 12, 2025 at 7:17 AM Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
> >
> > We have received reports about cards can become corrupt related to the
> > aggressive PM support. Let's make a partial revert of the change that
> > enabled the feature.
> >
> > Reported-by: David Owens <daowens01@xxxxxxxxx>
> > Reported-by: Romain Naour <romain.naour@xxxxxxxx>
> > Reported-by: Robert Nelson <robertcnelson@xxxxxxxxx>
> > Tested-by: Robert Nelson <robertcnelson@xxxxxxxxx>
> > Fixes: 3edf588e7fe0 ("mmc: sdhci-omap: Allow SDIO card power off and enable aggressive PM")
> > Cc: stable@xxxxxxxxxxxxxxx
> > Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> > ---
> >  drivers/mmc/host/sdhci-omap.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
> > index 54d795205fb4..26a9a8b5682a 100644
> > --- a/drivers/mmc/host/sdhci-omap.c
> > +++ b/drivers/mmc/host/sdhci-omap.c
> > @@ -1339,8 +1339,8 @@ static int sdhci_omap_probe(struct platform_device *pdev)
> >         /* R1B responses is required to properly manage HW busy detection. */
> >         mmc->caps |= MMC_CAP_NEED_RSP_BUSY;
> >
> > -       /* Allow card power off and runtime PM for eMMC/SD card devices */
> > -       mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_AGGRESSIVE_PM;
> > +       /*  Enable SDIO card power off. */
> > +       mmc->caps |= MMC_CAP_POWER_OFF_CARD;
> >
> >         ret = sdhci_setup_host(host);
> >         if (ret)
> > --
> > 2.43.0
> >
>
> Thanks Ulf, i also have this exact revert running on the target in our
> ci farm, i think we should be good.  But I'll validate it in 4 weeks!
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/

Thanks Robert for helping out!

In the meantime I decided to queue this up for next, to allow it to
get more testing in linux-next.

Kind regards
Uffe