Re: [PATCH 1/2] gpio/mxc: mask gpio interrupts in suspend

From: Linus Walleij
Date: Thu Aug 13 2015 - 08:47:59 EST

On Wed, Aug 5, 2015 at 7:23 PM, Eduardo Valentin <edubezval@xxxxxxxxx> wrote:

> From: Ulises Brindis <ubrindis56@xxxxxxxxx>
> Currently in the FSL platform all GPIO interrupts in a bank are muxed
> into two GPIO lines to the GPC interrupt controller. In each GPIO bank
> GPIOs 0-15 are OR'ed into one GPC interrupt controller interrupt and 16-31
> are OR'ed into another. With the current code, if any of the 0-15 or
> 16-31 interrupts are marked as wakeup capable, all interrupts belonging
> to that sub-bank (either 0-15 or 16-31) will wake up the device. This is
> because interrupts are only being masked at the interrupt controller
> and not at the GPIO controller.
> This patch allows masking of GPIO interrupts at the GPIO controller during
> suspend if they have not been labeled wakeup capable. This patch uses
> preexisting IRQCHIP_MASK_ON_SUSPEND flag while initializing the GPIO
> interrupts to get the desired behavior.
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Cc: Alexandre Courbot <gnurou@xxxxxxxxx>
> Cc: linux-gpio@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx>
> Signed-off-by: Ulises Brindis <ubrindis56@xxxxxxxxx>

Patch applied.

Linus Walleij
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