Re: [PATCH] pinctrl: rockchip: Avoid losing interrupts when supporting both edges
From: Linus Walleij
Date: Thu Jan 08 2015 - 14:25:11 EST
On Mon, Dec 22, 2014 at 7:47 PM, Doug Anderson <dianders@xxxxxxxxxxxx> wrote:
> I was seeing cases where I was losing interrupts when inserting and
> removing SD cards. Sometimes the card would get "stuck" in the
> inserted state.
>
> I believe that the problem was related to the code to handle the case
> where we needed both rising and falling edges. This code would
> disable the interrupt as the polarity was switched. If an interrupt
> came at the wrong time it could be lost.
>
> We'll match what the gpio-dwapb.c driver does upstream and change the
> interrupt polarity without disabling things.
>
> Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>
Patch applied for fixes.
Yours,
Linus Walleij
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/