linux-kernel - Re: [PATCH v4 5/5] gpio: mxc: enable pad wakeup on i.MX8x platforms

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Message-ID: <CAMRc=Mf+ByrcBt64gMdiWTgBRETuNHoJZNud1ZkW1T77rR6+QQ@mail.gmail.com>
Date:   Mon, 7 Nov 2022 11:30:19 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Shenwei Wang <shenwei.wang@....com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Dong Aisheng <aisheng.dong@....com>,
        Jacky Bai <ping.bai@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Peng Fan <peng.fan@....com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        imx@...ts.linux.dev
Subject: Re: [PATCH v4 5/5] gpio: mxc: enable pad wakeup on i.MX8x platforms

On Thu, Oct 27, 2022 at 3:10 PM Shenwei Wang <shenwei.wang@....com> wrote:
>
> On i.MX8QM/QXP/DXL SoCs, even a GPIO is selected as the wakeup source,
> the GPIO block will be powered off when system enters into suspend
> state. This can greatly reduce the power consumption of suspend state
> because the whole partition can be shutdown. This is called PAD wakeup
> feature on i.MX8x platform.
>
> This patch adds the noirq suspend/resume hooks and uses the pad wakeup
> feature as the default wakeup method for GPIO modules on
> i.MX8QM/QXP/DXL platforms.
>
> Signed-off-by: Shenwei Wang <shenwei.wang@....com>
> Reviewed-by: Peng Fan <peng.fan@....com>
> ---

Acked-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>