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In-Reply-To: <9cdebbad008886b1d09f5f3ac5d88bee19f08d97.1632750608.git.mchehab+huawei@kernel.org>
From:   Barry Song <21cnbao@gmail.com>
Date:   Tue, 28 Sep 2021 10:00:03 +1300
Message-ID: <CAGsJ_4xYJUCP_MSj5-bmjs6fUTbYqOM2eVVSvZcW_XJcf25w=Q@mail.gmail.com>
Subject: Re: [PATCH 17/17] ABI: sysfs-bus-platform: add modalias description
To:     Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc:     Linux Doc Mailing List <linux-doc@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Barry Song <song.bao.hua@hisilicon.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Marc Zyngier <maz@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>
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On Tue, Sep 28, 2021 at 3:02 AM Mauro Carvalho Chehab
<mchehab+huawei@kernel.org> wrote:
>
> Define the modalias parameter for platform devices, including
> the ones exposed via devicetree.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Acked-by: Barry Song <song.bao.hua@hisilicon.com>

> ---
>
> See [PATCH 00/17] at: https://lore.kernel.org/all/cover.1632750608.git.mchehab+huawei@kernel.org/
>
>  Documentation/ABI/testing/sysfs-bus-platform | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-platform b/Documentation/ABI/testing/sysfs-bus-platform
> index ff30728595ef..c4dfe7355c2d 100644
> --- a/Documentation/ABI/testing/sysfs-bus-platform
> +++ b/Documentation/ABI/testing/sysfs-bus-platform
> @@ -42,3 +42,15 @@ Date:                August 2021
>  Contact:       Barry Song <song.bao.hua@hisilicon.com>
>  Description:
>                 This attribute will show "msi" if <N> is a valid msi irq
> +
> +What:          /sys/bus/platform/devices/.../modalias
> +Description:
> +               Same as MODALIAS in the uevent at device creation.
> +
> +               A platform device that it is exposed via devicetree uses:
> +
> +                       - of:N`of node name`T`type`
> +
> +               Other platform devices use, instead:
> +
> +                       - platform:`driver name`
> --
> 2.31.1
>