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[1/6] dt-bindings: display: simple-framebuffer: Support system memory framebuffers

Message ID 20220905163300.391692-2-thierry.reding@gmail.com
State Changes Requested
Headers show
Series drm/simpledrm: Support system memory framebuffers | expand

Commit Message

Thierry Reding Sept. 5, 2022, 4:32 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

In order to support framebuffers residing in system memory, allow the
memory-region property to override the framebuffer memory specification
in the "reg" property.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../devicetree/bindings/display/simple-framebuffer.yaml      | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
index dd64f70b5014..3e9857eb002e 100644
--- a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
+++ b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
@@ -63,6 +63,11 @@  properties:
   reg:
     description: Location and size of the framebuffer memory
 
+  memory-region:
+    maxItems: 1
+    description: Phandle to a node describing the memory to be used for the
+      framebuffer. If present, overrides the "reg" property (if one exists).
+
   clocks:
     description: List of clocks used by the framebuffer.