Re: [PATCH V4 03/18] gpio: tegra: use resume_noirq for tegra gpio resume

From: Sowjanya Komatineni
Date: Wed Jun 26 2019 - 13:06:43 EST

On 6/25/19 6:38 AM, Linus Walleij wrote:
On Mon, Jun 24, 2019 at 5:03 AM Sowjanya Komatineni
<skomatineni@xxxxxxxxxx> wrote:

During SC7 resume, PARKED bit clear from the pinmux registers may
cause a glitch on the GPIO lines.

So, Tegra GPIOs restore should happen prior to restoring Tegra pinmux
to keep the GPIO lines in a known good state prior to clearing PARKED

This patch has fix for this by moving Tegra GPIOs restore to happen
very early than pinctrl resume.

Signed-off-by: Sowjanya Komatineni <skomatineni@xxxxxxxxxx>
Can this patch be applied in isolation from the other patches?

WOuld be nice to have at least Thierry's ACK on it before I
apply it.

Linus Walleij

Just to confirm, Will not include this in V5 as you are planning to apply this patch separately.