Explain that the DPU node supports a memory-region property that can be
used to describe an initial framebuffer set up by the bootloader,
usually in order to create a passthrough mapping for this framebuffer
when the IOMMU is used.
Signed-off-by: Otto Pflüger <otto.pflue...@abscue.de>
---
.../devicetree/bindings/display/sprd/sprd,sharkl3-dpu.yaml | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git
a/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dpu.yaml
b/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dpu.yaml
index
7f34652080b22e7b7072a709fd390a72375110ef..fa9ad2600f150e1023606898322a1a7b4675bab3
100644
--- a/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dpu.yaml
@@ -48,6 +48,14 @@ properties:
iommus:
maxItems: 1
+ memory-region:
+ maxItems: 1
+ description:
+ A phandle to the framebuffer region configured by the bootloader. This
+ can be used together with an iommu-addresses property on the reserved
+ memory region to create an initial passthrough mapping for the boot
+ splash framebuffer.
+
port:
type: object
description:
--
2.50.0
