linux-kernel - Re: [PATCH v2] dt-bindings: phy: qcom,usb-hs-phy: Add compatible

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Date: Wed, 17 Apr 2024 08:50:20 +0200
From: Herman van Hazendonk <github.com@...rie.org>
To: dmitry.baryshkov@...aro.org
Cc: andersson@...nel.org,
	benwolsieffer@...il.com,
	chris.chapuis@...il.com,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	github.com@...rie.org,
	kishon@...nel.org,
	konrad.dybcio@...aro.org,
	krzk+dt@...nel.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-phy@...ts.infradead.org,
	me@...rie.org,
	robh@...nel.org,
	vkoul@...nel.org
Subject: Re: [PATCH v2] dt-bindings: phy: qcom,usb-hs-phy: Add compatible

On Wed, 17 Apr 2024 at 07:52, Herman van Hazendonk
<github.com@...rie.org> wrote:
>>
>> Adds qcom,usb-hs-phy-msm8660 compatible
>>
>> Used by HP Touchpad (tenderloin) for example.
>>
>> Signed-off-by: Herman van Hazendonk <github.com@...rie.org>
>> ---
>>  Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml
>> index f042d6af1594..ccf23170cd17 100644
>> --- a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml
>> +++ b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml
>> @@ -15,6 +15,7 @@ if:
>>        contains:
>>          enum:
>>            - qcom,usb-hs-phy-apq8064
>> +          - qcom,usb-hs-phy-msm8660
>>            - qcom,usb-hs-phy-msm8960
>>  then:
>>    properties:
>> @@ -41,6 +42,7 @@ properties:
>>        - enum:
>>            - qcom,usb-hs-phy-apq8064
>>            - qcom,usb-hs-phy-msm8226
>> +          - qcom,usb-hs-phy-msm8960

> This should probably be msm8660 rather than 8960
Hi Dmitry,

Thanks for the swift feedback. I'll send a v3.
I need more coffee before doing this in the morning

> Note, nowadays the rule would be to use qcom,msm8660-usb-hs-phy
> compatible, but I wonder if we should enforce this for such an old
> platform or whether similarity wins.

>>            - qcom,usb-hs-phy-msm8916
>>            - qcom,usb-hs-phy-msm8960
>>            - qcom,usb-hs-phy-msm8974
>>

I plan to send more patches for the msm8660, so happy to understand what
is the preferred approach, because it doesn't seem consistent.

These are my first patches, so learning mainly from what I see in commit
history (which might be outdated)
It's indeed ancient platform, we just would like to get HP TouchPad
(tenderloin) running with a mainline kernel, hence these patches.

Best regards,
Herman

> --
> With best wishes
> Dmitry