From: Frank Wunderlich <frank-w@public-files.de>

Add SoC specific section for defining clock configuration.

Add compatible in "not" section to avoid override the settings again.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 .../devicetree/bindings/mmc/mtk-sd.yaml       | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
index c7bcf0c3dd5d..9df63c461f1f 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
@@ -229,6 +229,33 @@ allOf:
             - const: hclk
             - const: source_cg
             - const: bus_clk
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt7986-mmc
+    then:
+      properties:
+        assigned-clock-parents:
+          maxItems: 2
+        assigned-clocks:
+          maxItems: 2
+        clocks:
+          minItems: 3
+          items:
+            - description: source clock
+            - description: HCLK which used for host
+            - description: independent source clock gate
+            - description: bus clock used for internal register access
+            - description: msdc subsys clock gate
+        clock-names:
+          minItems: 3
+          items:
+            - const: source
+            - const: hclk
+            - const: axi_cg
+            - const: ahb_cg
   - if:
       not:
         properties:
@@ -237,6 +264,7 @@ allOf:
               enum:
                 - mediatek,mt2712-mmc
                 - mediatek,mt8192-mmc
+                - mediatek,mt7986-mmc
     then:
       properties:
         clocks:
-- 
2.34.1

On 22/10/2022 05:05, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@public-files.de>
> 
> Add SoC specific section for defining clock configuration.
> 
> Add compatible in "not" section to avoid override the settings again.
> 
> Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
> ---
>  .../devicetree/bindings/mmc/mtk-sd.yaml       | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> index c7bcf0c3dd5d..9df63c461f1f 100644
> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> @@ -229,6 +229,33 @@ allOf:
>              - const: hclk
>              - const: source_cg
>              - const: bus_clk

Blank line

> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt7986-mmc
> +    then:
> +      properties:
> +        assigned-clock-parents:
> +          maxItems: 2
> +        assigned-clocks:
> +          maxItems: 2

Define these two only if they are required for the hardware to operate
and only such setup (two assigned parents) is allowed. Otherwise you put
some constraints on board design.

> +        clocks:
> +          minItems: 3

Best regards,
Krzysztof