linux-kernel - [PATCH 2/2] arm64: dts: qcom: sm8150-mtp: drop incorrect amd,imageon

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Date: Sun, 23 Jun 2024 21:34:20 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Rob Clark <robdclark@...il.com>,
	Sean Paul <sean@...rly.run>,
	Abhinav Kumar <quic_abhinavk@...cinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	freedreno@...ts.freedesktop.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/2] arm64: dts: qcom: sm8150-mtp: drop incorrect amd,imageon

The SM8150 MTP board does not have magically different GPU than the
SM8150, so it cannot use amd,imageon compatible, also pointed by
dtbs_check:

  sm8150-mtp.dtb: gpu@...0000: compatible: 'oneOf' conditional failed, one must be fixed:
    ['qcom,adreno-640.1', 'qcom,adreno', 'amd,imageon'] is too long
    'qcom,adreno-640.1' does not match '^qcom,adreno-[0-9a-f]{8}$'
    'qcom,adreno-640.1' does not match '^amd,imageon-200\\.[0-1]$'
    'amd,imageon' was expected

The incorrect amd,imageon compatible was added in commit f30ac26def18
("arm64: dts: qcom: add sm8150 GPU nodes") to the SM8150 and later moved
to the SM8150 MTP board in commit 1642ab96efa4 ("arm64: dts: qcom:
sm8150: Don't start Adreno in headless mode") with an intention to allow
headless mode.  This should be solved via proper driver quirks, not fake
compatibles.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

This change depends on previous driver support, unless we do not care
because MTP is a development platform, not a product.
---
 arch/arm64/boot/dts/qcom/sm8150-mtp.dts | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
index 286350ac7751..256a1ba94945 100644
--- a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
@@ -355,11 +355,6 @@ &gmu {
 };
 
 &gpu {
-	/*
-	 * NOTE: "amd,imageon" makes Adreno start in headless mode, remove it
-	 * after display support is added on this board.
-	 */
-	compatible = "qcom,adreno-640.1", "qcom,adreno", "amd,imageon";
 	status = "okay";
 };
 
-- 
2.43.0