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[35.233.43.219]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3cf33fb9dbfsm41650181f8f.43.2025.09.08.06.12.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Sep 2025 06:12:59 -0700 (PDT) From: Tudor Ambarus Date: Mon, 08 Sep 2025 13:12:42 +0000 Subject: [PATCH v4 1/5] dt-bindings: firmware: google,gs101-acpm-ipc: add ACPM clocks Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250908-acpm-clk-v4-1-633350c0c0b1@linaro.org> References: <20250908-acpm-clk-v4-0-633350c0c0b1@linaro.org> In-Reply-To: <20250908-acpm-clk-v4-0-633350c0c0b1@linaro.org> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , =?utf-8?q?Andr=C3=A9_Draszik?= , Michael Turquette , Stephen Boyd , Krzysztof Kozlowski , Alim Akhtar , Sylwester Nawrocki , Chanwoo Choi , Catalin Marinas , Will Deacon Cc: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, willmcvicker@google.com, kernel-team@android.com, Tudor Ambarus X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1757337178; l=3056; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=d16ATURJXaVteyF3Qps5PT9fGye6OfeD6faAj7tSV9U=; b=suYt9exuHS5pnrnU/6Dl3RDrK+E1WIxhvGPdwwQ3FPHy9Br2xJnfDunovLjDzC9kuHFmAcIiL C/CqsWwn9aPBC/3KL2PvOOXAQkSEBn7TCUXkTH/9eEvTIYcZoUOWhDe X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= The firmware exposes clocks that can be controlled via the Alive Clock and Power Manager (ACPM) interface. Make the ACPM node a clock provider by adding the mandatory "#clock-cells" property, which allows devices to reference its clock outputs. Signed-off-by: Tudor Ambarus Reviewed-by: Rob Herring (Arm) --- .../bindings/firmware/google,gs101-acpm-ipc.yaml | 11 +++++++++ include/dt-bindings/clock/google,gs101-acpm.h | 26 ++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml index 9785aac3b5f34955bbfe2718eec48581d050954f..d3bca6088d128485618bb2b538ed8596b4ba14f0 100644 --- a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml +++ b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml @@ -24,6 +24,15 @@ properties: compatible: const: google,gs101-acpm-ipc + "#clock-cells": + const: 1 + description: + Clocks that are variable and index based. These clocks don't provide + an entire range of values between the limits but only discrete points + within the range. The firmware also manages the voltage scaling + appropriately with the clock scaling. The argument is the ID of the + clock contained by the firmware messages. + mboxes: maxItems: 1 @@ -45,6 +54,7 @@ properties: required: - compatible + - "#clock-cells" - mboxes - shmem @@ -56,6 +66,7 @@ examples: power-management { compatible = "google,gs101-acpm-ipc"; + #clock-cells = <1>; mboxes = <&ap2apm_mailbox>; shmem = <&apm_sram>; diff --git a/include/dt-bindings/clock/google,gs101-acpm.h b/include/dt-bindings/clock/google,gs101-acpm.h new file mode 100644 index 0000000000000000000000000000000000000000..e2ba89e09fa6209f7c81f554dd511b2619009e5b --- /dev/null +++ b/include/dt-bindings/clock/google,gs101-acpm.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright 2025 Linaro Ltd. + * + * Device Tree binding constants for Google gs101 ACPM clock controller. + */ + +#ifndef _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H +#define _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H + +#define GS101_CLK_ACPM_DVFS_MIF 0 +#define GS101_CLK_ACPM_DVFS_INT 1 +#define GS101_CLK_ACPM_DVFS_CPUCL0 2 +#define GS101_CLK_ACPM_DVFS_CPUCL1 3 +#define GS101_CLK_ACPM_DVFS_CPUCL2 4 +#define GS101_CLK_ACPM_DVFS_G3D 5 +#define GS101_CLK_ACPM_DVFS_G3DL2 6 +#define GS101_CLK_ACPM_DVFS_TPU 7 +#define GS101_CLK_ACPM_DVFS_INTCAM 8 +#define GS101_CLK_ACPM_DVFS_TNR 9 +#define GS101_CLK_ACPM_DVFS_CAM 10 +#define GS101_CLK_ACPM_DVFS_MFC 11 +#define GS101_CLK_ACPM_DVFS_DISP 12 +#define GS101_CLK_ACPM_DVFS_BO 13 + +#endif /* _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H */ -- 2.51.0.355.g5224444f11-goog