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Mon, 28 Apr 2025 23:19:43 -0700 (PDT) From: Peter Griffin Date: Tue, 29 Apr 2025 07:19:37 +0100 Subject: [PATCH v3 1/5] dt-bindings: soc: google: Add gs101-pmu-intr-gen binding documentation Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-1-1bcc44fb1d55@linaro.org> References: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-0-1bcc44fb1d55@linaro.org> In-Reply-To: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-0-1bcc44fb1d55@linaro.org> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, tudor.ambarus@linaro.org, andre.draszik@linaro.org, willmcvicker@google.com, kernel-team@android.com, Peter Griffin X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1650; 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a=openpgp; fpr=0EFC8E6F5578750D56B549FCCEE8B8D6023472BA Add bindings documentation for the Power Management Unit (PMU) interrupt generator. Signed-off-by: Peter Griffin --- Changes since v2: - Fix dtschema error "relative path/filename doesn't match actual path or filename" (Robs patch bot) --- .../soc/google/google,gs101-pmu-intr-gen.yaml | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml b/Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml new file mode 100644 index 0000000000000000000000000000000000000000..2be022ca6a7d0780db3163f1b774e4825a9123fb --- /dev/null +++ b/Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/google/google,gs101-pmu-intr-gen.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Google Power Management Unit (PMU) Interrupt Generation + +description: | + PMU interrupt generator for handshaking between PMU through interrupts. + +maintainers: + - Peter Griffin + +properties: + compatible: + items: + - const: google,gs101-pmu-intr-gen + - const: syscon + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + pmu_intr_gen: syscon@17470000 { + compatible = "google,gs101-pmu-intr-gen", "syscon"; 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Mon, 28 Apr 2025 23:19:46 -0700 (PDT) From: Peter Griffin Date: Tue, 29 Apr 2025 07:19:40 +0100 Subject: [PATCH v3 4/5] arm64: dts: exynos: gs101: add pmu-intr-gen syscon node Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-4-1bcc44fb1d55@linaro.org> References: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-0-1bcc44fb1d55@linaro.org> In-Reply-To: <20250429-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v3-0-1bcc44fb1d55@linaro.org> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, tudor.ambarus@linaro.org, andre.draszik@linaro.org, willmcvicker@google.com, kernel-team@android.com, Peter Griffin X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1422; i=peter.griffin@linaro.org; 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Additionally update the exynos-pmu node to provide a phandle to pmu-intr-gen syscon. These registers are required for CPU hotplug to be functional. Signed-off-by: Peter Griffin --- Changes since v1: * Model pmu-intr-gen as it's own syscon (Krzysztof) --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 91cda7758020563b2c5b5768d8921e87b1f4231c..48c691fd0a3ae430b5d66b402610d23b72b144d7 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1405,6 +1405,7 @@ sysreg_apm: syscon@174204e0 { pmu_system_controller: system-controller@17460000 { compatible = "google,gs101-pmu", "syscon"; reg = <0x17460000 0x10000>; + google,pmu-intr-gen-syscon = <&pmu_intr_gen>; poweroff: syscon-poweroff { compatible = "syscon-poweroff"; @@ -1434,6 +1435,11 @@ reboot-mode { }; }; + pmu_intr_gen: syscon@17470000 { + compatible = "google,gs101-pmu-intr-gen", "syscon"; + reg = <0x17470000 0x10000>; + }; + pinctrl_gpio_alive: pinctrl@174d0000 { compatible = "google,gs101-pinctrl"; reg = <0x174d0000 0x00001000>;