Re: [PATCH V4 03/18] gpio: tegra: use resume_noirq for tegra gpio resume
From: Thierry Reding
Date: Tue Jun 25 2019 - 09:40:37 EST
On Sun, Jun 23, 2019 at 08:02:44PM -0700, Sowjanya Komatineni 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>
> drivers/gpio/gpio-tegra.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
Acked-by: Thierry Reding <treding@xxxxxxxxxx>
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