[PATCH] pinctrl: rockchip: Avoid losing interrupts when supporting both edges

[Heiko Stübner]

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 at chromium.org>

Reviewed-by: Heiko Stuebner <heiko at sntech.de>
on a rk3188 board with the edge triggered power-button
Tested-by: Heiko Stuebner <heiko at sntech.de>


Heiko