[PATCH v4 1/2] dt-bindings: dma: fsl-edma: remove 'clocks' from required

[Frank Li <Frank.Li@nxp.com>]

fsl,imx8qm-adma and fsl,imx8qm-edma don't require 'clocks'. Remove it from
required and add 'if' block for other compatible string to keep the same
restrictions.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

Notes:
    Change from v3 to v4
      - fixed '\t' during fix conflicts.
    
    make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8  dt_binding_check DT_SCHEMA_FILES=fsl,edma.yaml
      LINT    Documentation/devicetree/bindings
      DTEX    Documentation/devicetree/bindings/dma/fsl,edma.example.dts
      CHKDT   Documentation/devicetree/bindings/processed-schema.json
      SCHEMA  Documentation/devicetree/bindings/processed-schema.json
      DTC_CHK Documentation/devicetree/bindings/dma/fsl,edma.example.dtb
    
    Change from v2 to v3
      - rebase to dmaengine/next, fixed conflicts
    Change from v1 to v2
      - add Krzysztof's ACK.

 .../devicetree/bindings/dma/fsl,edma.yaml       | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
index 825f4715499e5..fb5fbe4b9f9d4 100644
--- a/Documentation/devicetree/bindings/dma/fsl,edma.yaml
+++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
@@ -82,7 +82,6 @@ required:
   - compatible
   - reg
   - interrupts
-  - clocks
   - dma-channels
 
 allOf:
@@ -187,6 +186,22 @@ allOf:
         "#dma-cells":
           const: 3
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,vf610-edma
+              - fsl,imx7ulp-edma
+              - fsl,imx93-edma3
+              - fsl,imx93-edma4
+              - fsl,imx95-edma5
+              - fsl,imx8ulp-edma
+              - fsl,ls1028a-edma
+    then:
+      required:
+        - clocks
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1