From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jordan Crouse Subject: [PATCH v2 3/3] dt-bindings: drm/msm/gpu: Document a5xx / a6xx zap shader region Date: Fri, 19 Apr 2019 13:46:16 -0600 Message-ID: <1555703176-5499-4-git-send-email-jcrouse@codeaurora.org> References: <1555703176-5499-1-git-send-email-jcrouse@codeaurora.org> Return-path: In-Reply-To: <1555703176-5499-1-git-send-email-jcrouse@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: freedreno@lists.freedesktop.org Cc: Bjorn Andersson , Sean Paul , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Rob Herring , Rob Clark , David Airlie , Mark Rutland , Daniel Vetter List-Id: dri-devel@lists.freedesktop.org Describe the zap-shader node that defines a reserved memory region to store the zap shader. Signed-off-by: Jordan Crouse --- Documentation/devicetree/bindings/display/msm/gpu.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt index aad1aef..1e6d870 100644 --- a/Documentation/devicetree/bindings/display/msm/gpu.txt +++ b/Documentation/devicetree/bindings/display/msm/gpu.txt @@ -25,6 +25,9 @@ Required properties: - qcom,gmu: For GMU attached devices a phandle to the GMU device that will control the power for the GPU. Applicable targets: - 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: @@ -71,5 +74,9 @@ Example a6xx (with GMU): operating-points-v2 = <&gpu_opp_table>; qcom,gmu = <&gmu>; + + zap-shader { + memory-region = <&zap_shader_region>; + }; }; }; -- 2.7.4