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charset=UTF-8 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241223_061430_896136_C591389E X-CRM114-Status: GOOD ( 20.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 23/12/2024 08:45, André Draszik wrote: > Hi Krzysztof, > > On Sun, 2024-12-22 at 12:38 +0100, Krzysztof Kozlowski wrote: >> On 20/12/2024 12:27, André Draszik wrote: >>> Raven is Google's code name for Pixel 6 Pro. Since there are >>> differences compared to Pixel 6 (Oriole), we need to add a separate >>> compatible for it. >>> >>> We also want to support a generic DT, which can work on any type of >> >> There are no such generic DT devices upstream, so we cannot add bindings >> for them. > > Do you have a better suggestion for the wording? > How about 'gs101-based Pixel base board'? It's not exactly about the wording but the concept. We don't have generic devices, thus no generic DT (DTS). Period. Thus you cannot have such schema. > >>> gs101-based Pixel device, e.g. Pixel 6, or Pixel 6 Pro, or Pixel 6a (as >>> a future addition). Such a DT will have certain nodes disabled / not >>> added. To facilitate such a generic gs101-based Pixel device, also add >>> a more generic gs101-pixel compatible. We can not just use the existing >>> google,gs101 for that, as it refers to the SoC, not a board. >>> >>> Signed-off-by: André Draszik >>> --- >>>  Documentation/devicetree/bindings/arm/google.yaml | 18 ++++++++++++++---- >>>  1 file changed, 14 insertions(+), 4 deletions(-) >>> >>> diff --git a/Documentation/devicetree/bindings/arm/google.yaml b/Documentation/devicetree/bindings/arm/google.yaml >>> index e20b5c9b16bc..a8faf2256242 100644 >>> --- a/Documentation/devicetree/bindings/arm/google.yaml >>> +++ b/Documentation/devicetree/bindings/arm/google.yaml >>> @@ -34,11 +34,21 @@ properties: >>>      const: '/' >>>    compatible: >>>      oneOf: >>> -      - description: Google Pixel 6 / Oriole >>> +      - description: Google GS101 Pixel devices, as generic Pixel, or Pixel 6 >>> +          (Oriole), or 6 Pro (Raven) >>> +        minItems: 2 >>> +        maxItems: 3 >>>          items: >>> -          - enum: >>> -              - google,gs101-oriole >>> -          - const: google,gs101 >>> +          enum: >>> +            - google,gs101-oriole >>> +            - google,gs101-raven >>> +            - google,gs101-pixel >>> +            - google,gs101 >> >> SoC cannot be a board in the same time. > > Can you please expand? google,gs101 is the SoC, the other ones are boards. > Is the commit message unclear? You now say that these are valid boards: compatible = "google,gs101", "google,gs101"; (although compatibles compatible = "google,gs101", "google,gs101-pixel"; Both are wrong. SoC should not be before the board and SoC cannot be used alone. Your schema allows that and that's not good. I did not get what you want to achieve here, so tricky to advice. Best regards, Krzysztof