Re: [PATCH] pinctrl: rockchip: Avoid losing interrupts when supporting both edges
From: Heiko Stübner
Date: Sat Dec 27 2014 - 13:29:38 EST
Am Montag, 22. Dezember 2014, 10:47:29 schrieb Doug Anderson:
> 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>
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
on a rk3188 board with the edge triggered power-button
Tested-by: Heiko Stuebner <heiko@xxxxxxxxx>
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/