linux-kernel - Re: [PATCH 1/6] dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL

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Message-ID: <fbef6d02-74e8-4550-81af-afe7ac4c989b@kernel.org>
Date: Fri, 24 Oct 2025 15:03:10 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Frank Li <Frank.Li@....com>, Xu Yang <xu.yang_2@....com>,
 Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-perf-users@...r.kernel.org,
 devicetree@...r.kernel.org, imx@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] dt-bindings: perf: fsl-imx-ddr: Add compatible string
 for i.MX8QM, i.MX8QXP and i.MX8DXL

On 23/10/2025 20:56, Frank Li wrote:
> Add compatible string fsl,imx8qm-ddr-pmu, fsl,imx8qxp-ddr-pmu and
> fsl,imx8dxl-db-pmu (for data bus fabric).
> 
> Add clocks and clock-names for fsl,imx8dxl-db-pmu and keep the same
> restriction for existing compatible strings.
> 
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
>  .../devicetree/bindings/perf/fsl-imx-ddr.yaml      | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
> index d2e578d6b83b8847c7a0ca9d5aeb208a90e2fa6a..13eb13a79e2100ae1d747ddf6fc4db5b470112a8 100644
> --- a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
> +++ b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
> @@ -14,6 +14,7 @@ properties:
>      oneOf:
>        - enum:
>            - fsl,imx8-ddr-pmu
> +          - fsl,imx8dxl-db-pmu
>            - fsl,imx8m-ddr-pmu
>            - fsl,imx8mq-ddr-pmu
>            - fsl,imx8mm-ddr-pmu
> @@ -29,6 +30,8 @@ properties:
>            - const: fsl,imx8m-ddr-pmu
>        - items:
>            - const: fsl,imx8dxl-ddr-pmu
> +          - const: fsl,imx8qm-ddr-pmu
> +          - const: fsl,imx8qxp-ddr-pmu


I don't understand the need for this change, not explained in commit
msg. Why do you change 8dxl-ddr?

Best regards,
Krzysztof