Re: [PATCH 1/2] mmc: tmio: undo PM autosuspend when removing the host

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi Wolfram,

On Thu, May 7, 2020 at 1:17 PM Wolfram Sang
<wsa+renesas@sang-engineering.com> wrote:
> > When unbinding the sdhi driver on e.g. Koelsch or Salvator-XS:
> >
> >     echo ee100000.sd > /sys/bus/platform/drivers/sh_mobile_sdhi/unbind
> >     echo ee100000.sd > /sys/bus/platform/drivers/renesas_sdhi_internal_dmac/unbind
>
> Confirmed. Happens on my Lager and M3-N Salvator-XS, too.
>
> > Removing the call to pm_runtime_dont_use_autosuspend() fixes that
> > symptom.  But that is definitely not the right fix, as doing so causes
> > genpd_stop_dev() to no longer being called on unbind.
>
> Yes. So, we agree that this commit seems correct but it just makes
> another problem visisble?

Indeed.

> I'll have a look. Thanks for the initial pointers!

TIA!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds