linux-kernel - Re: [v3,1/1] adv_mix955x is a scheme that multiplexes PCA9554/PCA9555 into LED and GPIO

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Message-ID: <DFBFA86F-1A66-4351-9987-C63CCB40D82A@advantech.com.cn>
Date:   Mon, 3 May 2021 13:16:25 +0000
From:   yuechao.zhao(赵越超) 
        <yuechao.zhao@...antech.com.cn>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
CC:     "345351830@...com" <345351830@...com>,
        Rainbow.Zhang(張玉) 
        <Rainbow.Zhang@...antech.com.cn>,
        yunxia.li(李云霞) 
        <yunxia.li@...antech.com.cn>, "pavel@....cz" <pavel@....cz>,
        "dmurphy@...com" <dmurphy@...com>,
        Jia.Sui(贾睢) <Jia.Sui@...antech.com.cn>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>
Subject: Re: [v3,1/1] adv_mix955x is a scheme that multiplexes PCA9554/PCA9555
 into LED and GPIO

Hi Andy
Sorry for the late reply

The reason for writing this driver is that our customers hope that the LED and GPIO can be used out of the box
When they using our X86-Platform

About the document and ACPI expert, I will provide them after I improve them. Please wait for a few days.

Thank you very much

Yuechao Zhao

在 2021/5/2 下午6:50，“Andy Shevchenko”<andy.shevchenko@...il.com> 写入:

    On Fri, Apr 30, 2021 at 8:27 AM yuechao.zhao(赵越超)
    <yuechao.zhao@...antech.com.cn> wrote:
    >
    > From: Yuechao Zhao <yuechao.zhao@...antech.com.cn>
    >
    > With this driver, we can multiplex PCA9554/PCA9555 into LED and GPIO
    > based on the ACPI data of BIOS.

    NAK as per v2.

    Please, add a proper documentation and show ACPI excerpt, and last but
    not least is missing justification.


    -- 
    With Best Regards,
    Andy Shevchenko