linux-kernel - Re: [PATCH] ARM: dts: imx6sx-sdb: Add headphone detection for sound card

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Message-ID: <CAOMZO5AQdOONXgYFYGV+=0u8KqXUfJm-J53YoKdJDPXJmLtW0Q@mail.gmail.com>
Date:   Sun, 23 Aug 2020 11:12:08 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     "S.j. Wang" <shengjiu.wang@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: dts: imx6sx-sdb: Add headphone detection for sound card

Hi Wang Shengjiu and Shawn,

On Sun, Aug 23, 2020 at 9:31 AM S.j. Wang <shengjiu.wang@....com> wrote:

> I would like to know your opinion, should I move headphone detect GPIO
> To audmux group?

What about adding a dedicated pinctrl_hp for the headphone detect pin
like it is done at:
https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/tree/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi?h=for-next&id=8f0216b006e5f553d28c4c1a991b5234693a49cb#n130

My point is that we should avoid adding a hog group when possible.

Thanks