linux-kernel - [PATCH 5.4 186/222] arm64: dts: qcom: sdm845-cheza: delete zap-shader

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Date:   Wed, 22 Jan 2020 10:29:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rob Clark <robdclark@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Andy Gross <agross@...nel.org>
Subject: [PATCH 5.4 186/222] arm64: dts: qcom: sdm845-cheza: delete zap-shader

From: Rob Clark <robdclark@...omium.org>

commit 43b0a4b482478aa4fe7240230be74a79dee95679 upstream.

This is unused on cheza.  Delete the node to get ride of the reserved-
memory section, and to avoid the driver from attempting to load a zap
shader that doesn't exist every time it powers up the GPU.

This also avoids a massive amount of dmesg spam about missing zap fw:
  msm ae00000.mdss: [drm:adreno_request_fw] *ERROR* failed to load
qcom/a630_zap.mdt: -2
  adreno 5000000.gpu: [drm:adreno_zap_shader_load] *ERROR* Unable to
load a630_zap.mdt

Signed-off-by: Rob Clark <robdclark@...omium.org>
Cc: Douglas Anderson <dianders@...omium.org>
Fixes: 3fdeaee951aa ("arm64: dts: sdm845: Add zap shader region for GPU")
Reviewed-by: Douglas Anderson <dianders@...omium.org>
Tested-by: Douglas Anderson <dianders@...omium.org>
Signed-off-by: Andy Gross <agross@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi |    2 ++
 arch/arm64/boot/dts/qcom/sdm845.dtsi       |    2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -165,6 +165,8 @@
 /delete-node/ &venus_mem;
 /delete-node/ &cdsp_mem;
 /delete-node/ &cdsp_pas;
+/delete-node/ &zap_shader;
+/delete-node/ &gpu_mem;
 
 /* Increase the size from 120 MB to 128 MB */
 &mpss_region {
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2824,7 +2824,7 @@
 
 			qcom,gmu = <&gmu>;
 
-			zap-shader {
+			zap_shader: zap-shader {
 				memory-region = <&gpu_mem>;
 			};