From: Clément Le Goffic <clement.legoffic@foss.st.com>

Add in the memory channel binding the DDR4 compatible to support DDR4
memory channel.

Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>
---
 .../bindings/memory-controllers/ddr/jedec,sdram-channel.yaml   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,sdram-channel.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,sdram-channel.yaml
index 9892da520fe4..866af40b654d 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,sdram-channel.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,sdram-channel.yaml
@@ -19,6 +19,7 @@ maintainers:
 properties:
   compatible:
     enum:
+      - jedec,ddr4-channel
       - jedec,lpddr2-channel
       - jedec,lpddr3-channel
       - jedec,lpddr4-channel
@@ -61,6 +62,15 @@ patternProperties:
       - reg
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: jedec,ddr4-channel
+    then:
+      patternProperties:
+        "^rank@[0-9]+$":
+          $ref: /schemas/memory-controllers/ddr/jedec,ddr4.yaml#
   - if:
       properties:
         compatible:

-- 
2.43.0