linux-kernel - [PATCH v5 2/2] arm64: dts: qcom: sm8650: add missing cpu-cfg interconnect path in the mdss node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20250227-topic-sm8x50-mdss-interconnect-bindings-fix-v5-2-bf6233c6ebe5@linaro.org>
Date: Thu, 27 Feb 2025 10:00:33 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v5 2/2] arm64: dts: qcom: sm8650: add missing cpu-cfg
 interconnect path in the mdss node

The bindings requires the mdp0-mem and the cpu-cfg interconnect path,
add the missing cpu-cfg path to fix the dtbs check error and also to ensure
that MDSS has enough bandwidth to let HLOS write config registers.

Fixes: 9fa33cbca3d2 ("arm64: dts: qcom: sm8650: correct MDSS interconnects")
Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8650.dtsi | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
index de960bcaf3ccf6e2be47bf63a02effbfb75241bf..719ad437756a499cee4170abccc83f2047f0f747 100644
--- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
@@ -4930,8 +4930,11 @@ mdss: display-subsystem@...0000 {
 			resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
 
 			interconnects = <&mmss_noc MASTER_MDP QCOM_ICC_TAG_ALWAYS
-					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
-			interconnect-names = "mdp0-mem";
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+			interconnect-names = "mdp0-mem",
+					     "cpu-cfg";
 
 			power-domains = <&dispcc MDSS_GDSC>;
 

-- 
2.34.1