[PATCH v5 1/2] dt-bindings: display/msm: mdss-common: add memory-region property

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Add and document the reserved memory region property in the
mdss-common schema.

For now (sdm845-db845c), it points to a framebuffer memory
region reserved by the bootloader for splash screen.

Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
---
v5: Moving the dt-binding to mdss-common schema with
    updated commit message and property description.

v4: Adding this new dt-binding patch, in qcom,sdm845-mdss
    schema, in the v4 of the follow-up patch for
    sdm845-db845c.
    https://lore.kernel.org/lkml/20230712130215.666924-2-amit.pundir@xxxxxxxxxx/

 .../devicetree/bindings/display/msm/mdss-common.yaml         | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
index ccd7d6417523..84ed2757ded5 100644
--- a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
+++ b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
@@ -77,6 +77,12 @@ properties:
     items:
       - description: MDSS_CORE reset
 
+  memory-region:
+    maxItems: 1
+    description:
+      Phandle to a node describing a reserved framebuffer memory region.
+      For example, the splash memory region set up by the bootloader.
+
 required:
   - reg
   - reg-names
-- 
2.25.1




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