linux-kernel - [PATCH 7/7] arm64: dts: qcom: sm8650: Add hwlock to remoteproc

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Message-ID: <20240516-hwspinlock-bust-v1-7-47a90a859238@quicinc.com>
Date: Thu, 16 May 2024 15:58:25 -0700
From: Chris Lew <quic_clew@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Baolin Wang
	<baolin.wang@...ux.alibaba.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Ingo
 Molnar" <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long
	<longman@...hat.com>, Boqun Feng <boqun.feng@...il.com>,
        Jonathan Corbet
	<corbet@....net>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
CC: <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-doc@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Chris Lew <quic_clew@...cinc.com>
Subject: [PATCH 7/7] arm64: dts: qcom: sm8650: Add hwlock to remoteproc

Add the hwlock property to remoteproc. This enables the remoteproc to
try and bust the smem hwspinlock if the remoteproc has crashed while
holding the hwspinlock.

Signed-off-by: Chris Lew <quic_clew@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sm8650.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
index 62a6e77730bc..a65a1679f003 100644
--- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
@@ -2878,6 +2878,7 @@ remoteproc_mpss: remoteproc@...0000 {
 
 			qcom,smem-states = <&smp2p_modem_out 0>;
 			qcom,smem-state-names = "stop";
+			hwlocks = <&tcsr_mutex 3>;
 
 			status = "disabled";
 
@@ -5024,6 +5025,7 @@ remoteproc_adsp: remoteproc@...00000 {
 
 			qcom,smem-states = <&smp2p_adsp_out 0>;
 			qcom,smem-state-names = "stop";
+			hwlocks = <&tcsr_mutex 3>;
 
 			status = "disabled";
 
@@ -5183,6 +5185,7 @@ remoteproc_cdsp: remoteproc@...00000 {
 
 			qcom,smem-states = <&smp2p_cdsp_out 0>;
 			qcom,smem-state-names = "stop";
+			hwlocks = <&tcsr_mutex 3>;
 
 			status = "disabled";
 

-- 
2.25.1