linux-kernel - Re: [EXTERNAL] Re: [PATCH v1 1/8] ALSA: hda/tas2781: Add tas2781 SPI-based driver

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Date: Fri, 5 Apr 2024 16:17:35 +0000
From: "Xu, Baojun" <baojun.xu@...com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC: "tiwai@...e.de" <tiwai@...e.de>,
        "robh+dt@...nel.org"
	<robh+dt@...nel.org>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "pierre-louis.bossart@...ux.intel.com"
	<pierre-louis.bossart@...ux.intel.com>,
        "Lu, Kevin" <kevin-lu@...com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "liam.r.girdwood@...el.com" <liam.r.girdwood@...el.com>,
        "yung-chuan.liao@...ux.intel.com" <yung-chuan.liao@...ux.intel.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "soyer@....hu" <soyer@....hu>, "Ding, Shenghao" <shenghao-ding@...com>
Subject: Re: [EXTERNAL] Re: [PATCH v1 1/8] ALSA: hda/tas2781: Add tas2781
 SPI-based driver

Hi Andy,

Answer inline:
________________________________________
> From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Sent: 26 March 2024 22:58
> To: Xu, Baojun
> Cc: tiwai@...e.de; robh+dt@...nel.org; lgirdwood@...il.com; perex@...ex.cz; pierre-louis.bossart@...ux.intel.com; Lu, Kevin; 13916275206@....com; alsa-devel@...a-project.org; linux-kernel@...r.kernel.org; liam.r.girdwood@...el.com; yung-chuan.liao@...ux.intel.com; broonie@...nel.org; soyer@....hu
> Subject: [EXTERNAL] Re: [PATCH v1 1/8] ALSA: hda/tas2781: Add tas2781 SPI-based driver
> 
> On Tue, Mar 26, 2024 at 09: 08: 58AM +0800, Baojun Xu wrote: > Add TXNW2781 support in smi. What is 'smi'? Can you make message less cryptic, please? Also explain why it should be in that list in scan. c. Code wise LGTM, so with commit message
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> On Tue, Mar 26, 2024 at 09:08:58AM +0800, Baojun Xu wrote:
> > Add TXNW2781 support in smi.
> 
> What is 'smi'? Can you make message less cryptic, please?
> Also explain why it should be in that list in scan.c.
SMI mean drivers/platform/x86/serial-multi-instantiate.c, it add multi-spi
devices within one ACPI node, and it mentioned new device-ids must also be
added to ignore_serial_bus_ids in drivers/acpi/scan.c.

An ACPI node example like below:

    Scope (_SB.PC00.SPI0)
    {
        Device (GSPK)
        {
            Name (_HID, "TXNW2781")  // _HID: Hardware ID
            Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
            {
                Name (RBUF, ResourceTemplate ()
                {
                    SpiSerialBusV2 (...)
                    SpiSerialBusV2 (...)
		}
	    }
	}
    }

> 
> Code wise LGTM, so with commit message fixed,
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> 
> --
> With Best Regards,
> Andy Shevchenko
>