linux-kernel - [PATCH v3 3/4] arm64: dts: exynos: gs101: add ACPM protocol node

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Message-Id: <20241220-gs101-acpm-dt-v3-3-642d64daa5d1@linaro.org>
Date: Fri, 20 Dec 2024 14:45:46 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Peter Griffin <peter.griffin@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 andre.draszik@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com, 
 peter.griffin@...aro.org, daniel.lezcano@...aro.org, 
 vincent.guittot@...aro.org, ulf.hansson@...aro.org, arnd@...db.de, 
 Jassi Brar <jassisinghbrar@...il.com>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH v3 3/4] arm64: dts: exynos: gs101: add ACPM protocol node

Add the ACPM protocol node. ACPM protocol provides interface for all
the client drivers making use of the features offered by the
Active Power Management (APM) module.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 arch/arm64/boot/dts/exynos/google/gs101.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
index 6947dd081a0e..681ea775ba54 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -277,6 +277,14 @@ apm_sram: sram@...9000 {
 		ranges = <0x0 0x0 0x2039000 0x40000>;
 	};
 
+	firmware {
+		acpm_ipc: power-management {
+			compatible = "google,gs101-acpm-ipc";
+			mboxes = <&ap2apm_mailbox>;
+			shmem = <&apm_sram>;
+		};
+	};
+
 	soc: soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;

-- 
2.47.1.613.gc27f4b7a9f-goog