linux-kernel - Re: [PATCH 1/2] dt-bindings: hwinfo: Introduce board-id

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Date: Tue, 23 Jan 2024 12:05:56 -0800
From: Trilok Soni <quic_tsoni@...cinc.com>
To: Elliot Berman <quic_eberman@...cinc.com>,
        Amrit Anand
	<quic_amrianan@...cinc.com>
CC: <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <agross@...nel.org>, <konrad.dybcio@...aro.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <kernel@...cinc.com>,
        Conor Dooley
	<conor@...nel.org>, <andersson@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH 1/2] dt-bindings: hwinfo: Introduce board-id

On 1/23/2024 10:51 AM, Elliot Berman wrote:
> 
> 
> On 1/23/2024 9:18 AM, Conor Dooley wrote:
>> On Tue, Jan 23, 2024 at 12:50:07PM +0100, Krzysztof Kozlowski wrote:
>>> On 22/01/2024 11:10, Amrit Anand wrote:
>>>>
>>>> On 1/21/2024 12:40 AM, Trilok Soni wrote:
>>>>> On 1/20/2024 3:20 AM, Amrit Anand wrote:
>>>>>> From: Elliot Berman <quic_eberman@...cinc.com>
>>>>>>
>>>>>> Device manufacturers frequently ship multiple boards or SKUs under a
>>>>>> single software package. These software packages will ship multiple
>>>>>> devicetree blobs and require some mechanism to pick the correct DTB for
>>>>>> the board the software package was deployed. Introduce a common
>>>>>> definition for adding board identifiers to device trees. board-id
>>>>>> provides a mechanism for bootloaders to select the appropriate DTB which
>>>>>> is vendor/OEM-agnostic.
>>>>> Please extend CC list to more architectures? linux-arm-kernel, risc-v etc; since
>>>>> the proposal below is not specific to ARM but any architecture is using the
>>>>> devicetree.
>>>> Wouldn't devicetree@...r.kernel.org will have concern folks from all the 
>>>> architectures?
>>>> Please correct me.
>>>
>>> No.
>>
>> The chromium guys should get a CC on future versions of this stuff,
>> since they like doing wacky things with compatible strings in their
>> bootloader and this problem is one they also face. Doug Anderson and the
>> mediatek chromebook folks would be a good start.
>>
> 
> Please CC Peter Griffin from Linaro as he helped restart this 
> discussion at Plumbers.
> 
> Peter Griffin <peter.griffin@...aro.org>
> 
> Also, for the oneplus boards:
> Caleb Connolly <caleb.connolly@...aro.org>

Thank you everyone. Amrit - please take care of above comments
when you post next revision and as suggested please add other
architecture mailing lists using the devicetree. Thank you. 

-- 
---Trilok Soni