From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2C4FC282C2 for ; Thu, 7 Feb 2019 09:53:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66BA721872 for ; Thu, 7 Feb 2019 09:53:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="CHN9rPZ9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726965AbfBGJxY (ORCPT ); Thu, 7 Feb 2019 04:53:24 -0500 Received: from mail-eopbgr10059.outbound.protection.outlook.com ([40.107.1.59]:54848 "EHLO EUR02-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726293AbfBGJxY (ORCPT ); Thu, 7 Feb 2019 04:53:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lcm5ZlTwO5wdHB/lVH6FfmYaGpNpwLQ3C2M5tTV98f8=; b=CHN9rPZ9kDDqLwgHlSaMthocayDXQkJ21/WYaC4YhdWpiUwvDyMAldA8OG27XK6Xci85QjN3m3srvK4l9FajqHzTWMutCh9by0VntB3stQP2Nea1v+vNHW8kTCKrr8z2GpJFZI3XI+tes0ERtu5ByWRYBt0k1No1hLWCOrHPEt4= Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com (52.133.30.10) by AM6PR0402MB3589.eurprd04.prod.outlook.com (52.133.20.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1601.21; Thu, 7 Feb 2019 09:52:38 +0000 Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::6c94:4ad8:e9f3:cf1]) by AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::6c94:4ad8:e9f3:cf1%4]) with mapi id 15.20.1601.016; Thu, 7 Feb 2019 09:52:38 +0000 From: Anson Huang To: "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , "rui.zhang@intel.com" , "edubezval@gmail.com" , "daniel.lezcano@linaro.org" , Aisheng Dong , "ulf.hansson@linaro.org" , Daniel Baluta , "horms+renesas@verge.net.au" , Andy Gross , "heiko@sntech.de" , "arnd@arndb.de" , "maxime.ripard@bootlin.com" , "jagan@amarulasolutions.com" , "bjorn.andersson@linaro.org" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "olof@lixom.net" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-pm@vger.kernel.org" CC: dl-linux-imx Subject: [PATCH V6 1/4] dt-bindings: fsl: scu: add thermal binding Thread-Topic: [PATCH V6 1/4] dt-bindings: fsl: scu: add thermal binding Thread-Index: AQHUvsrbmfXgtz1KZEeItOtlZ1aFAg== Date: Thu, 7 Feb 2019 09:52:37 +0000 Message-ID: <1549532838-27025-1-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: HK2PR02CA0190.apcprd02.prod.outlook.com (2603:1096:201:21::26) To AM6PR0402MB3911.eurprd04.prod.outlook.com (2603:10a6:209:1c::10) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c01e64f1-e2b4-4f80-4528-08d68ce1fdd0 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Feb 2019 09:52:28.9999 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3589 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 Reviewed-by: Rob Herring --- ChangeLog since V5: - add "imx,sensor-resource-id" in each thermal zone to pass resource ID fo= r thermal driver. --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 20 ++++++++++++++++= ++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/= Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index 72d481c..4b79751 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -122,6 +122,20 @@ RTC bindings based on SCU Message Protocol Required properties: - compatible: should be "fsl,imx8qxp-sc-rtc"; =20 +Thermal bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible : Must be "fsl,imx8qxp-sc-thermal"; +- tsens-num : Total number of thermal sensors supported; +- #thermal-sensor-cells : Should be 1. See + Documentation/devicetree/bindings/thermal/thermal.txt + for a description. +- imx,sensor-resource-id : This property should be defined in each thermal= zone + of thermal-zones node, it passes each thermal zone's + resource id for thermal driver to get temperature via + SCU IPC. + Example (imx8qxp): ------------- lsio_mu1: mailbox@5d1c0000 { @@ -168,6 +182,12 @@ firmware { rtc: rtc { compatible =3D "fsl,imx8qxp-sc-rtc"; }; + + tsens: thermal-sensor { + compatible =3D "fsl,imx8qxp-sc-thermal"; + tsens-num =3D <1>; + #thermal-sensor-cells =3D <1>; + }; }; }; =20 --=20 2.7.4