linux-kernel - [PATCH v2 2/2] arm64: dts: qcom: sdm845: cheza doesn't support LMh node

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Message-Id: <20230912071205.11502-2-david@ixit.cz>
Date:   Tue, 12 Sep 2023 12:42:04 +0530
From:   David Heidelberg <david@...t.cz>
To:     cros-qcom-dts-watchers@...omium.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Thara Gopinath <thara.gopinath@...aro.org>
Cc:     David Heidelberg <david@...t.cz>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] arm64: dts: qcom: sdm845: cheza doesn't support LMh node

Cheza firmware doesn't allow controlling LMh from the operating system.

Fixes: 36c6581214c4 ("arm64: dts: qcom: sdm845: Add support for LMh node")
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: David Heidelberg <david@...t.cz>
---
v2:
 - moved power-domains removal from this patch to previous one, since
   it's not related to LMh support
 arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index e0ee91225eec..e51bf02fbfe3 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -143,6 +143,10 @@ panel_in_edp: endpoint {
 	};
 };
 
+&cpufreq_hw {
+	/delete-property/ interrupts-extended; /* reference to lmh_cluster[01] */
+};
+
 &psci {
 	/delete-node/ power-domain-cpu0;
 	/delete-node/ power-domain-cpu1;
@@ -275,6 +279,14 @@ &BIG_CPU_SLEEP_1
 			   &CLUSTER_SLEEP_0>;
 };
 
+&lmh_cluster0 {
+	status = "disabled";
+};
+
+&lmh_cluster1 {
+	status = "disabled";
+};
+
 /*
  * Reserved memory changes
  *
-- 
2.40.1