Re: [PATCH v4 1/5] dt-bindings: display: msm-dsi-phy-7nm: document the QCS8300 DSI PHY

From: Ayushi Makhija
Date: Fri Jan 02 2026 - 04:29:50 EST


On 12/27/2025 4:43 PM, Krzysztof Kozlowski wrote:
> On Thu, Dec 25, 2025 at 08:51:30PM +0530, Ayushi Makhija wrote:
>> The QCS8300 MDSS DSI PHY is the same 5nm PHY IP as on SA8775P, with
>> identical register layout and programming model. Model this by using
>> a QCS8300 specific compatible with a qcom,sa8775p-dsi-phy-5nm fallback,
>> and update the schema to require this two entry form for QCS8300 while
>> keeping existing single compatible users valid.
>
> Last sentence is redundant. I asked to explain the hardware, not to tell
> us how Devicetree works. Write concise and informative commit msgs which
> tell non-obvious things. Not what you did. I alreaded asked this - do
> not state the obvious, do not copy the subject.
>
> The only useful part of your commit msg is first sentence - two lines,
> so 33%. Remaining four lines, so 66%, is obvious.
>
> Best regards,
> Krzysztof
>

Hi Krzysztof,

Can you please check below commit description is it appropriate ?

QCS8300 uses the same 5nm MDSS DSI PHY IP as SA8775P, sharing an identical
register layout and programming model. Introduce a QCS8300-specific compatible
with a fallback to `qcom,sa8775p-dsi-phy-5nm` to reflect this hardware reuse.

Thanks,
Ayushi