linux-kernel - [PATCH v2 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: <20251024-qm_dts-v2-1-7a7e07022ed6@nxp.com>
Date: Fri, 24 Oct 2025 14:17:11 -0400
From: Frank Li <Frank.Li@....com>
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: Frank Li <frank.li@....com>, 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, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v2 1/6] dt-bindings: perf: fsl-imx-ddr: Add compatible
 string for i.MX8QM, i.MX8QXP and i.MX8DXL

Add compatible string fsl,imx8qm-ddr-pmu, fsl,imx8qxp-ddr-pmu, which
fallback to fsl,imx8-ddr-pmu and fsl,imx8dxl-db-pmu (for data bus fabric).

Add clocks, clock-names for fsl,imx8dxl-db-pmu and keep the same
restriction for existing compatible strings.

Signed-off-by: Frank Li <Frank.Li@....com>
---
changes in v2
- move fsl,imx8qm-ddr-pmu, fsl,imx8qxp-ddr-pmu under enum
---
 .../devicetree/bindings/perf/fsl-imx-ddr.yaml      | 29 +++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
index d2e578d6b83b8847c7a0ca9d5aeb208a90e2fa6a..103e4aec2439424129fdb9a76edd2ce1c598b5a1 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
@@ -28,7 +29,10 @@ properties:
               - fsl,imx8mp-ddr-pmu
           - const: fsl,imx8m-ddr-pmu
       - items:
-          - const: fsl,imx8dxl-ddr-pmu
+          - enum:
+              - fsl,imx8dxl-ddr-pmu
+              - fsl,imx8qm-ddr-pmu
+              - fsl,imx8qxp-ddr-pmu
           - const: fsl,imx8-ddr-pmu
       - items:
           - enum:
@@ -43,6 +47,14 @@ properties:
   interrupts:
     maxItems: 1
 
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: ipg
+      - const: cnt
+
 required:
   - compatible
   - reg
@@ -50,6 +62,21 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: fsl,imx8dxl-db-pmu
+    then:
+      required:
+        - clocks
+        - clock-names
+    else:
+      properties:
+        clocks: false
+        clock-names: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>

-- 
2.34.1