Commit b55ee6b2 authored by Jordan Crouse's avatar Jordan Crouse Committed by Rob Clark

dt-bindings: drm/msm/gpu: Document a5xx / a6xx zap shader region

Describe the zap-shader node that defines a reserved memory region
to store the zap shader.
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: default avatarRob Clark <robdclark@chromium.org>
parent abccb9fe
...@@ -27,6 +27,9 @@ Required properties: ...@@ -27,6 +27,9 @@ Required properties:
- qcom,gmu: For GMU attached devices a phandle to the GMU device that will - qcom,gmu: For GMU attached devices a phandle to the GMU device that will
control the power for the GPU. Applicable targets: control the power for the GPU. Applicable targets:
- qcom,adreno-630.2 - qcom,adreno-630.2
- 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.
Example 3xx/4xx/a5xx: Example 3xx/4xx/a5xx:
...@@ -75,5 +78,9 @@ Example a6xx (with GMU): ...@@ -75,5 +78,9 @@ Example a6xx (with GMU):
interconnects = <&rsc_hlos MASTER_GFX3D &rsc_hlos SLAVE_EBI1>; interconnects = <&rsc_hlos MASTER_GFX3D &rsc_hlos SLAVE_EBI1>;
qcom,gmu = <&gmu>; qcom,gmu = <&gmu>;
zap-shader {
memory-region = <&zap_shader_region>;
};
}; };
}; };
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