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Tue, 27 Nov 2018 06:01:27 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::adf8:f49d:deb4:58fd]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::adf8:f49d:deb4:58fd%2]) with mapi id 15.20.1361.019; Tue, 27 Nov 2018 06:01:27 +0000 From: Anson Huang To: "rui.zhang@intel.com" , "edubezval@gmail.com" , "daniel.lezcano@linaro.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "linux-pm@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: dl-linux-imx Subject: [PATCH 2/2] dt-bindings: thermal: add binding doc for i.MX system controller thermal driver Thread-Topic: [PATCH 2/2] dt-bindings: thermal: add binding doc for i.MX system controller thermal driver Thread-Index: AQHUhhainrgyDrCRXkSl0okqRGMtvg== Date: Tue, 27 Nov 2018 06:01:27 +0000 Message-ID: <1543298147-8155-2-git-send-email-Anson.Huang@nxp.com> References: <1543298147-8155-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1543298147-8155-1-git-send-email-Anson.Huang@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0PR01CA0066.apcprd01.prod.exchangelabs.com (2603:1096:203:a6::30) To DB3PR0402MB3916.eurprd04.prod.outlook.com (2603:10a6:8:10::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: TMek6yuZOOE+dk7p7/a6DUnLNWQPh3oQ7WvR1iq3BuhjmshrHqeGTLbuxv93qhH8aqEz6xImMH4VnYFqru1k+fcFd/quwFi8nsffokAqUOdPDoukQUl+hjf+1XoznlPTMCLIElcnGMNlHAaFiV1dF0F/cHkjFmlFou9Za7SC1QQT1DYZGHoYI+rHThaD6QeGeQT0Jh0tmu9FU1e+EtJjUYcaJ/VyzMS1paC3n9uH1IBMe6WOZl2/bUeIfECg2SnKaYlxG8TAJbOR6fUngqruuyzfA5zA014XX0kfHYlRi0ZfAG92wZIuMHhU1wER8eYpmc//CakwnLh34iXrB11YhkMht+0X0wFjz71ZbsZfABQ= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0a7a7d23-0827-4a91-79b7-08d6542dc510 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Nov 2018 06:01:27.8300 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB3PR0402MB3836 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system controller, the system controller is in charge of system power, clock and thermal sensors etc. management, Linux kernel has to communicate with system controller via MU (message unit) IPC to get temperature from thermal sensors, this patch adds binding doc for i.MX system controller thermal driver. Signed-off-by: Anson Huang --- .../devicetree/bindings/thermal/imx-sc-thermal.txt | 33 ++++++++++++++++++= ++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/imx-sc-therma= l.txt diff --git a/Documentation/devicetree/bindings/thermal/imx-sc-thermal.txt b= /Documentation/devicetree/bindings/thermal/imx-sc-thermal.txt new file mode 100644 index 0000000..2f5b0a2 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/imx-sc-thermal.txt @@ -0,0 +1,33 @@ +* Temperature Monitor (TEMPMON) on NXP i.MX SoCs with System Controller + +Required properties: +- compatible : Must be "nxp,imx8qxp-sc-thermal"; +- tsens-num : Total number of thermal sensors supported; +- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description= . + +Example: +tsens: thermal-sensor { + compatible =3D "nxp,imx8qxp-sc-thermal"; + tsens-num =3D <1>; + #thermal-sensor-cells =3D <1>; +}; + +thermal_zones: thermal-zones { + cpu-thermal0 { + polling-delay-passive =3D <250>; + polling-delay =3D <2000>; + thermal-sensors =3D <&tsens 355>; + trips { + cpu_alert0: trip0 { + temperature =3D <107000>; + hysteresis =3D <2000>; + type =3D "passive"; + }; + cpu_crit0: trip1 { + temperature =3D <127000>; + hysteresis =3D <2000>; + type =3D "critical"; + }; + }; + }; +}; --=20 2.7.4