linux-kernel - RE: [EXTERNAL] Re: [PATCH v2 4/4] ASoc: dt-bindings: PCM6240: Add initial DT binding

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Date: Wed, 31 Jan 2024 12:17:23 +0000
From: "Ding, Shenghao" <shenghao-ding@...com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
CC: "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "robh+dt@...nel.org"
	<robh+dt@...nel.org>,
        "andriy.shevchenko@...ux.intel.com"
	<andriy.shevchenko@...ux.intel.com>,
        "Lu, Kevin" <kevin-lu@...com>, "Xu,
 Baojun" <baojun.xu@...com>,
        "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>,
        "P O, Vijeth" <v-po@...com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "perex@...ex.cz"
	<perex@...ex.cz>,
        "pierre-louis.bossart@...ux.intel.com"
	<pierre-louis.bossart@...ux.intel.com>,
        "13916275206@....com"
	<13916275206@....com>,
        "Chawla, Mohit" <mohit.chawla@...com>,
        "linux-sound@...r.kernel.org" <linux-sound@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "liam.r.girdwood@...el.com" <liam.r.girdwood@...el.com>,
        "soyer@....hu"
	<soyer@....hu>, "Huang, Jonathan" <jkhuang3@...com>,
        "tiwai@...e.de"
	<tiwai@...e.de>, "Djuandi, Peter" <pdjuandi@...com>,
        "McPherson, Jeff"
	<j-mcpherson@...com>,
        "Navada Kanyana, Mukund" <navada@...com>,
        Mark Brown
	<broonie@...nel.org>
Subject: RE: [EXTERNAL] Re: [PATCH v2 4/4] ASoc: dt-bindings: PCM6240: Add
 initial DT binding



> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: Wednesday, January 31, 2024 12:18 AM
> To: Ding, Shenghao <shenghao-ding@...com>
> Cc: conor+dt@...nel.org; robh+dt@...nel.org;
> andriy.shevchenko@...ux.intel.com; Lu, Kevin <kevin-lu@...com>; Xu, Baojun
> <baojun.xu@...com>; devicetree@...r.kernel.org; P O, Vijeth <v-
> po@...com>; lgirdwood@...il.com; perex@...ex.cz; pierre-
> louis.bossart@...ux.intel.com; 13916275206@....com; Chawla, Mohit
> <mohit.chawla@...com>; linux-sound@...r.kernel.org; linux-
> kernel@...r.kernel.org; liam.r.girdwood@...el.com; soyer@....hu; Huang,
> Jonathan <jkhuang3@...com>; tiwai@...e.de; Djuandi, Peter
> <pdjuandi@...com>; McPherson, Jeff <j-mcpherson@...com>; Navada
> Kanyana, Mukund <navada@...com>; Mark Brown <broonie@...nel.org>
> Subject: Re: [EXTERNAL] Re: [PATCH v2 4/4] ASoc: dt-bindings: PCM6240:
> Add initial DT binding
> 
> On 29/01/2024 05: 43, Ding, Shenghao wrote: >> >> On Fri, Jan 26, 2024 at
> 09: 27: 47AM +0100, Krzysztof Kozlowski wrote: >>> On 26/01/2024 04: 58,
> Shenghao Ding wrote: >> >>>> + - if: >>>> + properties:
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> On 29/01/2024 05:43, Ding, Shenghao wrote:
> >>
> >> On Fri, Jan 26, 2024 at 09:27:47AM +0100, Krzysztof Kozlowski wrote:
> >>> On 26/01/2024 04:58, Shenghao Ding wrote:
> >>
> >>>> +  - if:
> >>>> +      properties:
> >>>> +        compatible:
> >>>> +          contains:
> >>>> +            enum:
> >>>> +              - ti,pcm1690
> >>>> +    then:
> >>>> +      properties:
> >>>> +        reg:
> >>>> +          items:
> >>>> +            minimum: 0x4c
> >>>> +            maximum: 0x4f
> >>
> >>> Nothing improved.
> >>
> >> Shenghao explained what what this is doing - I'm not sure what the
> >> actual problem is here?  It's an actual restriction on the values that are
> valid.
> >
> > Hi, Krzysztof. May I have the privilege to petition on behalf of my
> > customers? They want to keep these if branches and the i2c address in
> > yaml file. As you know, most of my customers used to make mistakes and
> > confuse with the i2c address. Listing them here can help them to get the
> information easily.
> 
> To which cases this exception will apply? Your patches, all TI?
> 
Some AI customers usually like to try some innovative projects, such as their multiple-slot TDM 
devices with serval different ADCs or DAC on different i2c buses. Traditional driver code really 
can't meet their requirements.
> Bindings are not supposed to be so detailed to create DTS out if it, because it
> makes them more difficult to maintain. Such amount of
> if:then: makes it trickier, for no real gain.
> 
Accept

 Best regards,
Shenghao Ding