linux-kernel - Re: [EXTERNAL] Re: [PATCH v3 1/3] ALSA: hda/tas2781: Modification for add tas2781 driver for SPI

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Date: Mon, 6 May 2024 07:44:05 +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>,
        "Ding,
 Shenghao" <shenghao-ding@...com>,
        "Navada Kanyana, Mukund" <navada@...com>,
        "13916275206@....com" <13916275206@....com>,
        "P O, Vijeth" <v-po@...com>,
        "Holalu Yogendra, Niranjan" <niranjan.hy@...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>
Subject: Re: [EXTERNAL] Re: [PATCH v3 1/3] ALSA: hda/tas2781: Modification for
 add tas2781 driver for SPI

Hi Andy

Thanks for your comments, answer in line:

> From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Sent: 02 May 2024 18:22
> 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; Ding, Shenghao; Navada Kanyana, Mukund; 13916275206@....com; P O, Vijeth; Holalu Yogendra, Niranjan; 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: Re: [EXTERNAL] Re: [PATCH v3 1/3] ALSA: hda/tas2781: Modification for add tas2781 driver for SPI
> 
> On Thu, Apr 25, 2024 at 07: 54: 41AM +0000, Xu, Baojun wrote: > > From: Andy Shevchenko <andriy. shevchenko@ linux. intel. com> > > Sent: 18 April 2024 19: 56 > > On Thu, Apr 18, 2024 at 12: 02: 37PM +0800, Baojun Xu wrote: 
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> On Thu, Apr 25, 2024 at 07:54:41AM +0000, Xu, Baojun wrote:
> > > From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > > Sent: 18 April 2024 19:56
> > > On Thu, Apr 18, 2024 at 12: 02: 37PM +0800, Baojun Xu wrote:
> > > On Thu, Apr 18, 2024 at 12:02:37PM +0800, Baojun Xu wrote:
> 
> ...
> 
> > > >  sound/pci/hda/Kconfig                           | 15 +++++++++++++++
> > > >  sound/pci/hda/Makefile                          |  2 ++
> > >
> > Is this correct? You are adding a dead "code", isn't it?
> >
> > What's mean "dead code"? After add CONFIG_SND_HDA_SCODEC_TAS2781_SPI=m
> > in my config file, the whole patch code has worked.
> 
> Is that file already in the repository?
> If not, I don't see it in this patch either --> dead code.

When I integrated CONFIG_SND_HDA_SCODEC_TAS2781_SPI and compiled the whole kernel,
it used to popup the following message for TAS2781 SPI module in first compile:
 
 Build TAS2781 HD-audio side codec support for SPI Bus (SND_HDA_SCODEC_TAS2781_SPI) [N/m/?] (NEW) 

Normally, selected m. And TAS2781 SPI module would be compiled.

> 
> --
> With Best Regards,
> Andy Shevchenko
> 
>