[PATCH 2/3] dt-bindings: drm/msm/gpu: Document firmware-name

Rob Clark
2020-01-08T01:39:11Z

From: Rob Clark <robdclark@chromium.org>

The firmware-name property in the zap node can be used to specify a
device specific zap firmware.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
Documentation/devicetree/bindings/display/msm/gpu.txt | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt
index 3e6cd3f64a78..7edc298a15f2 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/gpu.txt
@@ -33,6 +33,8 @@ Required properties:
- zap-shader: For a5xx and a6xx devices this node contains a memory-region that
points to reserved memory to store the zap shader that can be used to help
bring the GPU out of secure mode.
+- firmware-name: optional property of the 'zap-shader' node, listing the
+ relative path of the device specific zap firmware.

Example 3xx/4xx/a5xx:

@@ -85,6 +87,7 @@ Example a6xx (with GMU):

zap-shader {
memory-region = <&zap_shader_region>;
+ firmware-name = "qcom/LENOVO/81JL/qcdxkmsuc850.mbn"
};
};
};
--
2.24.1