Re: [PATCH v2 1/2] dt-bindings: soc: qcom: qcom,pmic-glink: Add compatible string for SM8475

From: Esteban Urrutia

Date: Fri Jul 31 2026 - 11:00:41 EST


On 7/31/26 5:58 AM, Krzysztof Kozlowski wrote:
> On Fri, Jul 31, 2026 at 01:00:08AM -0400, Esteban Urrutia wrote:
>> Due to a different process design, SM8475 (4 nm) SoC takes things from both
>> SM8450 (4 LPX) and SM8550 (4 nm) SoCs.
>
> What things? This is just unspecific and not useful. And I doubt that it
> is even "different process design", because how one would know that?


The process design is specified on the corresponding datasheets for
these SoCs, which are flying somewhere around the internet.
Also [1].

>> Add a separate compatible string for this SoC to avoid possible confusions.
>
> No, explain the hardware compatibility.
>
> Add foo bar, which is not compatible with baz because it uses bam bam in
> different setup (difference in registers, e.g. XYZ and ABC),

How does this commit message based on what was said in [1] sound to you?

SM8475 is a respin of SM8450 on a different process node, which probably
forced some electrical changes.
Document the SM8475 compatible used to describe the PMIC GLINK on this
platform.

Regards,
Esteban

[1] https://lore.kernel.org/linux-arm-msm/afcbb668-ab9e-4f97-9014-ecbd5170ab92@xxxxxxxxxx/