linux-kernel - Re: [PATCH v7 2/2] pinctrl: amd: Fix wakeups when IRQ is shared with SCI

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Date:   Tue, 9 Nov 2021 01:38:35 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     Basavaraj Natikar <Basavaraj.Natikar@....com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        "open list:PIN CONTROL SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-acpi@...r.kernel.org,
        Nehal Shah <Nehal-bakulchandra.Shah@....com>,
        Joerie de Gram <j.de.gram@...il.com>
Subject: Re: [PATCH v7 2/2] pinctrl: amd: Fix wakeups when IRQ is shared with SCI

On Mon, Nov 1, 2021 at 2:49 AM Mario Limonciello
<mario.limonciello@....com> wrote:

> On some Lenovo AMD Gen2 platforms the IRQ for the SCI and pinctrl drivers
> are shared.  Due to how the s2idle loop handling works, this case needs
> an extra explicit check whether the interrupt was caused by SCI or by
> the GPIO controller.
>
> To fix this rework the existing IRQ handler function to function as a
> checker and an IRQ handler depending on the calling arguments.
>
> BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1738
> Reported-by: Joerie de Gram <j.de.gram@...il.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> Acked-by: Basavaraj Natikar <Basavaraj.Natikar@....com>

This v7 patch applied for fixes.

Sorry for the delay, I was busy with the merge window.
Once the merge window concludes I will rebase this on
-rc1 and send upstream.

Yours,
Linus Walleij