Re: [PATCH 10/12] mmc: sdhi: Fixup system PM suspend lock-up
From: Geert Uytterhoeven
Date: Tue Aug 26 2014 - 03:43:46 EST
On Mon, Aug 25, 2014 at 2:26 PM, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
> At system PM suspend, the tmio core accessed the internal registers of
> the controller without first moving the device into active state. This
> caused a lock-up in system PM suspend phase.
> The reason for the register access were masking of IRQs. Since that is
> managed via the runtime PM suspend path, let's just re-use that path
> for system PM suspend.
> In other words force the device into runtime PM suspend state at system
> PM suspend and restore it to active state at system PM resume.
> Reported-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
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
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