From patchwork Sat Mar 15 08:12:12 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Madieu X-Patchwork-Id: 14017847 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 200D01EF0B4; Sat, 15 Mar 2025 08:17:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742026669; cv=none; b=W+ly7EHprfmCQxV7aIBoDKQp4+FnRsKOQyTPvuBGJONWAw39o9FLvOxXzMLLFHIYh0mGrU7FSb9zy07wNzYATcBpE+PwqzbPJK/d0uOztxcrqeHfTbih+dpkhIbAZf0WT0+arTgipZRtETrQvZyFGzom5/pPAIRBu3fN7LMQYB0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742026669; c=relaxed/simple; bh=aypuAsf8AVVJUw4BnRKla4KADrAf34nBoz0sSRBjTik=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=foJhIzqGQsEuwpTfBR5HP4bSy43C+kPa+IKT76W68NqUU14iLtWDvJOFi0Ps6A7q/c7La3c69SQ1WhEtNz87L10PA2Dz5VTz/vLaIThB/XtdJ/RgvoX3mDg7mC4v4pnzbzkQLSVko9/e6wRGbMuotIYtqVYMf6wP6lItO4x4EQQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: IKCSRS0mTamNy3UlhnwbqQ== X-CSE-MsgGUID: htoSzWasQxuJedpiFLW9Lg== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 15 Mar 2025 17:12:44 +0900 Received: from ubuntu.adwin.renesas.com (unknown [10.226.92.58]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 86D5241BFA40; Sat, 15 Mar 2025 17:12:39 +0900 (JST) From: John Madieu To: geert+renesas@glider.be, conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org, rafael@kernel.org, daniel.lezcano@linaro.org Cc: magnus.damm@gmail.com, devicetree@vger.kernel.org, john.madieu@gmail.com, rui.zhang@intel.com, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, sboyd@kernel.org, biju.das.jz@bp.renesas.com, linux-pm@vger.kernel.org, lukasz.luba@arm.com, John Madieu Subject: [PATCH v3 2/6] dt-bindings: thermal: r9a09g047-tsu: Document the TSU unit Date: Sat, 15 Mar 2025 09:12:12 +0100 Message-ID: <20250315081225.92118-3-john.madieu.xa@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250315081225.92118-1-john.madieu.xa@bp.renesas.com> References: <20250315081225.92118-1-john.madieu.xa@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Renesas RZ/G3E SoC includes a Thermal Sensor Unit (TSU) block designed to measure the junction temperature. The device provides real-time temperature measurements for thermal management, utilizing a single dedicated channel (channel 1) for temperature sensing. Signed-off-by: John Madieu --- v1 -> v2: * Fix reg property specifier to get rid of yamlint warnings * Fix IRQ name to reflect TSU expectations v2 -> v3: * Remove useless 'renesas,tsu-operating-mode' property .../thermal/renesas,r9a09g047-tsu.yaml | 113 ++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml diff --git a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml new file mode 100644 index 000000000000..46f0646d1c4f --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml @@ -0,0 +1,113 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/renesas,r9a09g047-tsu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G3E Temperature Sensor Unit (TSU) + +maintainers: + - John Madieu + +description: + The Temperature Sensor Unit (TSU) is an integrated thermal sensor that + monitors the chip temperature on the Renesas RZ/G3E SoC. The TSU provides + real-time temperature measurements for thermal management. + +properties: + compatible: + const: renesas,r9a09g047-tsu + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + power-domains: + maxItems: 1 + + interrupts: + description: | + Interrupt specifiers for the TSU: + - S12TSUADI1: Conversion complete interrupt signal (pulse) + - S12TSUADCMPI1: Comparison result interrupt signal (level) + + interrupt-names: + items: + - const: adi + - const: adcmpi + + "#thermal-sensor-cells": + const: 0 + + renesas,tsu-calibration-sys: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + Phandle to the system controller (sys) that contains the TSU + calibration values used for temperature calculations. + +required: + - compatible + - reg + - clocks + - resets + - power-domains + - interrupts + - interrupt-names + - "#thermal-sensor-cells" + - renesas,tsu-calibration-sys + +additionalProperties: false + +examples: + - | + #include + #include + + tsu: thermal@14002000 { + compatible = "renesas,r9a09g047-tsu"; + reg = <0x14002000 0x1000>; + clocks = <&cpg CPG_MOD 0x10a>; + resets = <&cpg 0xf8>; + power-domains = <&cpg>; + interrupts = , + ; + interrupt-names = "adi", "adcmpi"; + #thermal-sensor-cells = <0>; + renesas,tsu-calibration-sys = <&sys>; + }; + + thermal-zones { + cpu-thermal { + polling-delay = <1000>; + polling-delay-passive = <250>; + thermal-sensors = <&tsu>; + + cooling-maps { + map0 { + trip = <&target>; + cooling-device = <&cpu0 0 3>, <&cpu1 0 3>, + <&cpu2 0 3>, <&cpu3 0 3>; + contribution = <1024>; + }; + }; + + trips { + target: trip-point { + temperature = <95000>; + hysteresis = <1000>; + type = "passive"; + }; + + sensor_crit: sensor-crit { + temperature = <120000>; + hysteresis = <1000>; + type = "critical"; + }; + }; + }; + };