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[34.91.20.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-60c82908297sm1462702a12.26.2025.06.27.06.29.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jun 2025 06:29:33 -0700 (PDT) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Fri, 27 Jun 2025 14:29:32 +0100 Subject: [PATCH 3/3] arm64: dts: exynos: gs101: switch to gs101 specific reboot MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20250627-gs101-reboot3-v1-3-c3ae49657b1f@linaro.org> References: <20250627-gs101-reboot3-v1-0-c3ae49657b1f@linaro.org> In-Reply-To: <20250627-gs101-reboot3-v1-0-c3ae49657b1f@linaro.org> To: Catalin Marinas , Will Deacon , Peter Griffin , Tudor Ambarus , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: Will McVicker , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250627_062935_733700_A69E2603 X-CRM114-Status: GOOD ( 13.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org gs101 (Google Pixel 6 and Pixel 6 Pro) supports cold- and warm-reboot. Cold-reset is useful because it is more secure, e.g. wiping all RAM contents, while the warm-reboot allows RAM contents to be retained across the reboot, e.g. to collect potential crash information. Add the required DT changes to switch to the gs101-specific reboot method, which knows how to issue either reset as requested by the OS. The PMIC plays a role in this as well, so mark it as 'system-power-controller', which in this case ensures that the device will wake up again after a cold-reboot, ensuring the full power-cycle is successful. Signed-off-by: André Draszik --- arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi | 1 + arch/arm64/boot/dts/exynos/google/gs101.dtsi | 5 +---- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi index c1b51f4cfb8c174852b44690f84ed1aa0b4057c2..84ff3e047d3b31b5f96d4d6c78ec933bb05f3e6b 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi @@ -106,6 +106,7 @@ pmic { interrupts-extended = <&gpa0 6 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&pmic_int>; + system-power-controller; wakeup-source; regulators { diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 7fc3d803de39e654c1e8102b5e0f68995c3ab8e2..79a15fe7d336af3dcd9104d286bea525bb73e9e9 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1418,10 +1418,7 @@ poweroff: syscon-poweroff { }; reboot: syscon-reboot { - compatible = "syscon-reboot"; - offset = <0x3a00>; /* SYSTEM_CONFIGURATION */ - mask = <0x2>; /* SWRESET_SYSTEM */ - value = <0x2>; /* reset value */ + compatible = "google,gs101-reboot"; }; reboot-mode { -- 2.50.0.727.gbf7dc18ff4-goog