Re: [PATCH v5 2/2] gpio: tegra186: Implement wake event support

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Wed, Oct 2, 2019 at 4:45 PM Thierry Reding <thierry.reding@xxxxxxxxx> wrote:

> From: Thierry Reding <treding@xxxxxxxxxx>
>
> The GPIO controller doesn't have any controls to enable the system to
> wake up from low power states based on activity on GPIO pins. An extra
> hardware block that is part of the power management controller (PMC)
> contains these controls. In order for the GPIO controller to be able
> to cooperate with the PMC, obtain a reference to the PMC's IRQ domain
> and make it a parent to the GPIO controller's IRQ domain. This way the
> PMC gets an opportunity to program the additional registers required
> to enable wakeup sources on suspend.
>
> Based on additional work by Bitan Biswas <bbiswas@xxxxxxxxxx>.
>
> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
> ---
> Changes in v5:
> - rebase on top of new hierarchical IRQ domain support

Patch applied!

Also a special thanks for standing out to my sometimes flimsy
and handwavy engineering, and I'm happy we landed this the
way I imagined it. Sort of.

Yours,
Linus Walleij