linux-kernel - Re: [PATCH] gpio: mxc: move gpio noirq suspend/resume to syscore phase

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Message-ID: <CACRpkdY8j0kohUxRAtcfvK865EVDQXGXrB7d5+crXM4AMK1Dxg@mail.gmail.com>
Date:   Fri, 16 Nov 2018 22:56:22 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Anson Huang <anson.huang@....com>,
        Fabio Estevam <fabio.estevam@....com>
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        NXP Linux Team <linux-imx@....com>
Subject: Re: [PATCH] gpio: mxc: move gpio noirq suspend/resume to syscore phase

On Fri, Nov 9, 2018 at 5:56 AM Anson Huang <anson.huang@....com> wrote:

> During noirq suspend/resume phase, GPIO irq could arrive
> and its registers like IMR will be changed by irq handle
> process, to make the GPIO registers exactly when it is
> powered ON after resume, move the GPIO noirq suspend/resume
> callback to syscore suspend/resume phase, local irq is
> disabled at this phase so GPIO registers are atomic.
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>

Patch applied. Cc Fabio so he knows it happens.

Yours,
Linus Walleij