linux-kernel - [PATCH v15 14/14] arm64: dts: qcom: qcs615-ride: Add PSCI SYSTEM

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Message-Id: <20250922-arm-psci-system_reset2-vendor-reboots-v15-14-7ce3a08878f1@oss.qualcomm.com>
Date: Mon, 22 Sep 2025 19:10:24 +0530
From: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sebastian Reichel <sre@...nel.org>, Rob Herring <robh@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Souvik Chakravarty <Souvik.Chakravarty@....com>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Andy Yan <andy.yan@...k-chips.com>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Konrad Dybcio <konradybcio@...nel.org>,
        cros-qcom-dts-watchers@...omium.org, Vinod Koul <vkoul@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Florian Fainelli <florian.fainelli@...adcom.com>,
        Moritz Fischer <moritz.fischer@...us.com>,
        John Stultz <john.stultz@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Mukesh Ojha <mukesh.ojha@....qualcomm.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Andre Draszik <andre.draszik@...aro.org>,
        Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org,
        Elliot Berman <quic_eberman@...cinc.com>,
        Shivendra Pratap <shivendra.pratap@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>,
        Song Xue <quic_songxue@...cinc.com>
Subject: [PATCH v15 14/14] arm64: dts: qcom: qcs615-ride: Add PSCI
 SYSTEM_RESET2 types

From: Song Xue <quic_songxue@...cinc.com>

Add support for SYSTEM_RESET2 vendor-specific resets in
qcs615-ride as reboot-modes.  Describe the resets:
"bootloader" will cause device to reboot and stop in the
bootloader's fastboot mode.  "edl" will cause device to reboot
into "emergency download mode", which permits loading images via
the Firehose protocol.

Signed-off-by: Song Xue <quic_songxue@...cinc.com>
Signed-off-by: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs615-ride.dts | 7 +++++++
 arch/arm64/boot/dts/qcom/sm6150.dtsi     | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
index 705ea71b07a10aea82b5789e8ab9f757683f678a..bfb504db43368fe73ff200476ff5220334872c8a 100644
--- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
@@ -343,6 +343,13 @@ &pon_resin {
 	status = "okay";
 };
 
+&psci {
+	reboot-mode {
+		mode-bootloader = <0x10001 0x2>;
+		mode-edl = <0 0x1>;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/sm6150.dtsi b/arch/arm64/boot/dts/qcom/sm6150.dtsi
index 3d2a1cb02b628a5db7ca14bea784429be5a020f9..9df5e94069f604e5393350f5d8906097d6d01209 100644
--- a/arch/arm64/boot/dts/qcom/sm6150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6150.dtsi
@@ -416,7 +416,7 @@ opp-128000000 {
 		};
 	};
 
-	psci {
+	psci: psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
 

-- 
2.34.1