From patchwork Tue Apr 16 03:22:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1086033 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="Ukepy+nw"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jrJn4ldmz9s00 for ; Tue, 16 Apr 2019 13:22:17 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726346AbfDPDWQ (ORCPT ); Mon, 15 Apr 2019 23:22:16 -0400 Received: from mail-eopbgr70084.outbound.protection.outlook.com ([40.107.7.84]:41838 "EHLO EUR04-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726237AbfDPDWQ (ORCPT ); Mon, 15 Apr 2019 23:22:16 -0400 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=hjVzgxp9NtNOmWU69+HGsZ7hiXxCHTjeFno4DCz0C/o=; b=Ukepy+nw7CL2jJ6e9aQeNyibSt9USvjVobJ1GXkTXHzSqKh0KPtNsQ9exakFnZb4B7U5ADpVu0B8nSW4MyYz7tYubVRkBSDUAG8hsZSJVpzINhFRQRnZnQeTm/Eg2KGWKTKTsHGhwvnop6c6G7wyhyicHcgO9MGOSWhCdKq0Vdg= Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com (52.133.30.10) by AM6PR0402MB3895.eurprd04.prod.outlook.com (52.133.29.158) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1813.11; Tue, 16 Apr 2019 03:22:09 +0000 Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2]) by AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2%6]) with mapi id 15.20.1792.020; Tue, 16 Apr 2019 03:22:09 +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 , Peng Fan , "heiko@sntech.de" , "horms+renesas@verge.net.au" , "agross@kernel.org" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "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 V12 1/5] dt-bindings: fsl: scu: add thermal binding Thread-Topic: [PATCH V12 1/5] dt-bindings: fsl: scu: add thermal binding Thread-Index: AQHU9AOTUGgOS08iR0aOB0ANqNq0mg== Date: Tue, 16 Apr 2019 03:22:09 +0000 Message-ID: <1555384609-7030-1-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: HK2PR02CA0133.apcprd02.prod.outlook.com (2603:1096:202:16::17) 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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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR0402MB3895; H:AM6PR0402MB3911.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: w5lnTwSn1Jmm381eRWAiBoyff2JEoQPQFkJYNKV7m8yrQ4rEwsoAbsxS5Yt23TKM9Ubq4ArDo+VzEhYU68mQmBzlwVXgjKTISjsbg6FGhaTjRn4NSWzoNlM2DtcPWY/8hLhAmOddOSDzeuR8Bign2Vx81kLb0wVRvV6QYu7BPUnKo8jtnaytF8W4FVNttZqBeqIeMxvc32wNtcElOY8ODq0qV9Wdd5fqDtuanSmOfjRiYQ9cTgNhW6D4ed3dkpPkprLHr7+uGxFh/MZF+B3fx2MTPaj2ggHA/gTPY/AXcJzXAIoZZw883GUsf06NrsrjDN+pa8SIq/N92n+bMdelwuJa+YQhUYF8jdlaxEZLJ5apYWdoMBwRLoZ8qEDpCdSKSq6qkTC4QI1sZaXuoWTMP1CO3u2OZHvjtoDsPaIjKc4= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 90cc47c6-1e05-43fa-01b2-08d6c21ab59e X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Apr 2019 03:22:09.7687 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3895 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@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: Dong Aisheng --- No changes. --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index 5d7dbab..f4fb6d5 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -133,6 +133,17 @@ RTC bindings based on SCU Message Protocol Required properties: - compatible: should be "fsl,imx8qxp-sc-rtc"; +Thermal bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: Should be : + "fsl,imx8qxp-sc-thermal" + followed by "fsl,imx-sc-thermal"; + +- #thermal-sensor-cells: See Documentation/devicetree/bindings/thermal/thermal.txt + for a description. + Example (imx8qxp): ------------- aliases { @@ -185,6 +196,11 @@ firmware { rtc: rtc { compatible = "fsl,imx8qxp-sc-rtc"; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; }; From patchwork Tue Apr 16 03:22:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1086034 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="E2khNjBd"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jrJw5c9pz9s70 for ; Tue, 16 Apr 2019 13:22:24 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726770AbfDPDWX (ORCPT ); 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Tue, 16 Apr 2019 03:22:17 +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 , Peng Fan , "heiko@sntech.de" , "horms+renesas@verge.net.au" , "agross@kernel.org" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "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 V12 2/5] thermal: of-thermal: add API for getting sensor ID from DT Thread-Topic: [PATCH V12 2/5] thermal: of-thermal: add API for getting sensor ID from DT Thread-Index: AQHU9AOYmR6BJ3silEqzBa3crqYckQ== Date: Tue, 16 Apr 2019 03:22:17 +0000 Message-ID: <1555384609-7030-2-git-send-email-Anson.Huang@nxp.com> References: <1555384609-7030-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1555384609-7030-1-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: HK2PR02CA0133.apcprd02.prod.outlook.com (2603:1096:202:16::17) 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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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR0402MB3895; H:AM6PR0402MB3911.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 2lTIscw5KFDqFnh6h0QVSqOr2m3B8jRxzXOFmam/zHivjYcDk2t/gKsIdTWUFrhpMSQehAjzidWsw2csHyDBO3+5Eo+wRNvEm7waXJoUceEcVK2t5hNVD4FZ+FTLGik1Tiqc9r2XmO9Pk75bS3TnhOol0Z9W3+Tlbc6KQ/oFCYX8P/FKdkzab5YUggqX93msJG7WvSj/CE+IdIIMtFO+SpVK8ToJJMc8JfUAYN1vk2bqmD19jL/MdU13I2JQuR7zu4NiTLrUzp0d8PlZwFOHi9ZfW+YONKS/Z7vyBJo/n3laxqOL8nZijz7kM5BirXmuPVosYyoRYiqTXODSnfPf9Jdcazi4ta0mNTAZzWCWGczaLMuR2Z0j3sPlhmTdL/GjudiV7S5em3mmKCUUfondPzZI6Qfky/6GfmV1EwrKDj8= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f05a450b-eb62-4362-819e-08d6c21aba5a X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Apr 2019 03:22:17.8220 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3895 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On some platforms like i.MX8QXP, the thermal driver needs a real HW sensor ID from DT thermal zone, the HW sensor ID is used to get temperature from SCU firmware, and the virtual sensor ID starting from 0 to N is NOT used at all, this patch adds new API thermal_zone_of_get_sensor_id() to provide the feature of getting sensor ID from DT thermal zone's node. Signed-off-by: Anson Huang --- New patch. --- drivers/thermal/of-thermal.c | 53 ++++++++++++++++++++++++++++++++++---------- include/linux/thermal.h | 10 +++++++++ 2 files changed, 51 insertions(+), 12 deletions(-) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 2df059c..2e4320c 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -446,6 +446,46 @@ thermal_zone_of_add_sensor(struct device_node *zone, } /** + * thermal_zone_of_get_sensor_id - get sensor ID from a DT thermal zone + * @tz_np: a valid thermal zone device node. + * @sensor_specs: pointer to output arguments structure will be passed back. + * @id: a sensor ID pointer will be passed back. + * + * This function will get sensor ID from a given thermal zone node, use + * "thermal-sensors" as list name, and get sensor ID from first phandle's + * argument. + * + * Return: 0 on success, proper error code otherwise. + */ + +int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct of_phandle_args *sensor_specs, + u32 *id) +{ + int ret; + + ret = of_parse_phandle_with_args(tz_np, + "thermal-sensors", + "#thermal-sensor-cells", + 0, + sensor_specs); + if (ret) + return ret; + + if (sensor_specs->args_count >= 1) { + *id = sensor_specs->args[0]; + WARN(sensor_specs->args_count > 1, + "%pOFn: too many cells in sensor specifier %d\n", + sensor_specs->np, sensor_specs->args_count); + } else { + *id = 0; + } + + return 0; +} +EXPORT_SYMBOL_GPL(thermal_zone_of_get_sensor_id); + +/** * thermal_zone_of_sensor_register - registers a sensor to a DT thermal zone * @dev: a valid struct device pointer of a sensor device. Must contain * a valid .of_node, for the sensor node. @@ -500,21 +540,10 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, int ret, id; /* For now, thermal framework supports only 1 sensor per zone */ - ret = of_parse_phandle_with_args(child, "thermal-sensors", - "#thermal-sensor-cells", - 0, &sensor_specs); + ret = thermal_zone_of_get_sensor_id(child, &sensor_specs, &id); if (ret) continue; - if (sensor_specs.args_count >= 1) { - id = sensor_specs.args[0]; - WARN(sensor_specs.args_count > 1, - "%pOFn: too many cells in sensor specifier %d\n", - sensor_specs.np, sensor_specs.args_count); - } else { - id = 0; - } - if (sensor_specs.np == sensor_np && id == sensor_id) { tzd = thermal_zone_of_add_sensor(child, sensor_np, data, ops); diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 5f4705f..970fb37 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -375,6 +375,9 @@ struct thermal_trip { /* Function declarations */ #ifdef CONFIG_THERMAL_OF +int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct of_phandle_args *sensor_specs, + u32 *id); struct thermal_zone_device * thermal_zone_of_sensor_register(struct device *dev, int id, void *data, const struct thermal_zone_of_device_ops *ops); @@ -386,6 +389,13 @@ struct thermal_zone_device *devm_thermal_zone_of_sensor_register( void devm_thermal_zone_of_sensor_unregister(struct device *dev, struct thermal_zone_device *tz); #else + +static int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct of_phandle_args *sensor_specs, + u32 *id) +{ + return -ENOENT; +} static inline struct thermal_zone_device * thermal_zone_of_sensor_register(struct device *dev, int id, void *data, const struct thermal_zone_of_device_ops *ops) From patchwork Tue Apr 16 03:22:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1086035 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="aIZ7zX0q"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jrK94gWVz9s70 for ; Tue, 16 Apr 2019 13:22:37 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726814AbfDPDWb (ORCPT ); Mon, 15 Apr 2019 23:22:31 -0400 Received: from mail-eopbgr70050.outbound.protection.outlook.com ([40.107.7.50]:10921 "EHLO EUR04-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726237AbfDPDWb (ORCPT ); Mon, 15 Apr 2019 23:22:31 -0400 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=510j1AbXBqLs5c6+KYCcTvdMaCgrIcbV/GU6fvQxwjo=; b=aIZ7zX0qEPZl6pCL+v4o6mMK035Dfs3+uLp+6/C63RTLxJxsSXDBTERqFMFNmlJgR5sikKBpu3vMkU54yemPfUWbY4KU5Z+h7g7Z0B960npB7NCaRmdOTEexZypqbT+1AuFker5sKWtCOeD+XCdAFTRkbjtRIITPPph9xsQ6DPE= Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com (52.133.30.10) by AM6PR0402MB3895.eurprd04.prod.outlook.com (52.133.29.158) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1813.11; Tue, 16 Apr 2019 03:22:25 +0000 Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2]) by AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2%6]) with mapi id 15.20.1792.020; Tue, 16 Apr 2019 03:22:25 +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 , Peng Fan , "heiko@sntech.de" , "horms+renesas@verge.net.au" , "agross@kernel.org" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "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 V12 3/5] thermal: imx_sc: add i.MX system controller thermal support Thread-Topic: [PATCH V12 3/5] thermal: imx_sc: add i.MX system controller thermal support Thread-Index: AQHU9AOc8iXKmYQeMUm4+FbUnbYclA== Date: Tue, 16 Apr 2019 03:22:25 +0000 Message-ID: <1555384609-7030-3-git-send-email-Anson.Huang@nxp.com> References: <1555384609-7030-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1555384609-7030-1-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: HK2PR02CA0133.apcprd02.prod.outlook.com (2603:1096:202:16::17) 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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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR0402MB3895; H:AM6PR0402MB3911.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: hQehXe3LHrDIgZ5CNShQgP13uDVCMjcqVgBzIl969dZW5spFzy7KHgYVELrYdxlrjUZfRimbgwRxLfXO7sGzCUYwV7IgYfcggv1zcEFRND4gLpBLO2rRhnEnKlSt8D/ZjflBzupnEDhwa4ARNNoVXZG1aGzT0i3ZBs+lJngzneX3ODLVzFjS0E/aOBvikpFKcH7P4TxQSMgXtGCAIjmFjN2uOUSBeD6DjdgqWIW207RzQ9VKf8Bvcn25tVhcxHJ7uLLAT0V8baB3PGA94e1mALmOhfHg5nlECrwtMjZ+JpC1kLE8BzF9puAy7Ye6i6EN3iYVoS2pp5g33BOSoUQCtuXHDvGQ8cKgA/aabd1DhCB0OTKsFp5Yl6tc7RcemnrYOHoNlx+conPsH/M04AXya9u1Mazjx2Pj0+VwB+U1tbI= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3adab16f-1c94-42b7-e8e1-08d6c21abf2d X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Apr 2019 03:22:25.6602 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3895 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller inside, the system controller is in charge of controlling power, clock and thermal sensors etc.. This patch adds i.MX system controller thermal driver support, Linux kernel has to communicate with system controller via MU (message unit) IPC to get each thermal sensor's temperature, it supports multiple sensors which are passed from device tree, please see the binding doc for details. Signed-off-by: Anson Huang --- Changes since V11: - move the API of getting thermal zone sensor ID to of-thermal.c as generic API; - remove unnecessary __packed. --- drivers/thermal/Kconfig | 11 ++++ drivers/thermal/Makefile | 1 + drivers/thermal/imx_sc_thermal.c | 137 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+) create mode 100644 drivers/thermal/imx_sc_thermal.c diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 653aa27..4e4fa7e 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -223,6 +223,17 @@ config IMX_THERMAL cpufreq is used as the cooling device to throttle CPUs when the passive trip is crossed. +config IMX_SC_THERMAL + tristate "Temperature sensor driver for NXP i.MX SoCs with System Controller" + depends on (ARCH_MXC && IMX_SCU) || COMPILE_TEST + depends on OF + help + Support for Temperature Monitor (TEMPMON) found on NXP i.MX SoCs with + system controller inside, Linux kernel has to communicate with system + controller via MU (message unit) IPC to get temperature from thermal + sensor. It supports one critical trip point and one + passive trip point for each thermal sensor. + config MAX77620_THERMAL tristate "Temperature sensor driver for Maxim MAX77620 PMIC" depends on MFD_MAX77620 diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index 486d682..4062627 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_DB8500_THERMAL) += db8500_thermal.o obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o obj-$(CONFIG_TANGO_THERMAL) += tango_thermal.o obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o +obj-$(CONFIG_IMX_SC_THERMAL) += imx_sc_thermal.o obj-$(CONFIG_MAX77620_THERMAL) += max77620_thermal.o obj-$(CONFIG_QORIQ_THERMAL) += qoriq_thermal.o obj-$(CONFIG_DA9062_THERMAL) += da9062-thermal.o diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c new file mode 100644 index 0000000..dcf16fc --- /dev/null +++ b/drivers/thermal/imx_sc_thermal.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018-2019 NXP. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "thermal_core.h" + +#define IMX_SC_MISC_FUNC_GET_TEMP 13 +#define IMX_SC_C_TEMP 0 + +static struct imx_sc_ipc *thermal_ipc_handle; + +struct imx_sc_sensor { + struct thermal_zone_device *tzd; + u32 resource_id; +}; + +struct req_get_temp { + u16 resource_id; + u8 type; +} __packed; + +struct resp_get_temp { + u16 celsius; + u8 tenths; +} __packed; + +struct imx_sc_msg_misc_get_temp { + struct imx_sc_rpc_msg hdr; + union { + struct req_get_temp req; + struct resp_get_temp resp; + } data; +}; + +static int imx_sc_thermal_get_temp(void *data, int *temp) +{ + struct imx_sc_msg_misc_get_temp msg; + struct imx_sc_rpc_msg *hdr = &msg.hdr; + struct imx_sc_sensor *sensor = data; + int ret; + + msg.data.req.resource_id = sensor->resource_id; + msg.data.req.type = IMX_SC_C_TEMP; + + hdr->ver = IMX_SC_RPC_VERSION; + hdr->svc = IMX_SC_RPC_SVC_MISC; + hdr->func = IMX_SC_MISC_FUNC_GET_TEMP; + hdr->size = 2; + + ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true); + if (ret) { + pr_err("read temp sensor %d failed, ret %d\n", + sensor->resource_id, ret); + return ret; + } + + *temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100; + + return 0; +} + +static const struct thermal_zone_of_device_ops imx_sc_thermal_ops = { + .get_temp = imx_sc_thermal_get_temp, +}; + +static int imx_sc_thermal_probe(struct platform_device *pdev) +{ + struct device_node *np, *child; + int ret; + + ret = imx_scu_get_handle(&thermal_ipc_handle); + if (ret) + return ret; + + np = of_find_node_by_name(NULL, "thermal-zones"); + if (!np) + return -ENODEV; + + for_each_available_child_of_node(np, child) { + struct of_phandle_args sensor_specs; + struct imx_sc_sensor *sensor = + devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL); + if (!sensor) + return -ENOMEM; + + ret = thermal_zone_of_get_sensor_id(child, + &sensor_specs, + &sensor->resource_id); + if (ret < 0) { + dev_err(&pdev->dev, + "failed to get valid sensor resource id: %d\n", + ret); + break; + } + + sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, + sensor->resource_id, + sensor, + &imx_sc_thermal_ops); + if (IS_ERR(sensor->tzd)) { + dev_err(&pdev->dev, "failed to register thermal zone\n"); + ret = PTR_ERR(sensor->tzd); + break; + } + } + + return ret; +} + +static const struct of_device_id imx_sc_thermal_table[] = { + { .compatible = "fsl,imx-sc-thermal", }, + {} +}; +MODULE_DEVICE_TABLE(of, imx_sc_thermal_table); + +static struct platform_driver imx_sc_thermal_driver = { + .probe = imx_sc_thermal_probe, + .driver = { + .name = "imx-sc-thermal", + .of_match_table = imx_sc_thermal_table, + }, +}; +module_platform_driver(imx_sc_thermal_driver); + +MODULE_AUTHOR("Anson Huang "); +MODULE_DESCRIPTION("Thermal driver for NXP i.MX SoCs with system controller"); +MODULE_LICENSE("GPL v2"); From patchwork Tue Apr 16 03:22:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1086036 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="mbLn4iJp"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jrKC1gy2z9s7T for ; Tue, 16 Apr 2019 13:22:39 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726686AbfDPDWi (ORCPT ); Mon, 15 Apr 2019 23:22:38 -0400 Received: from mail-eopbgr70081.outbound.protection.outlook.com ([40.107.7.81]:4769 "EHLO EUR04-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726214AbfDPDWi (ORCPT ); Mon, 15 Apr 2019 23:22:38 -0400 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=SRE0GGHqIoSGOfDOEWY3Unc70+j3zWB8l9DVM6H+Y68=; b=mbLn4iJpdTE+mm1O6wZHMKJl4o2x81QWxVc1UHfl4ZV+5fiyFC2wtyohnq7fJJVvDHZr9ergX2sBLoebx67B3t7r0qgvnXEjLljBcepCFKGkLHqRES5rXM+v9qMYJJX4bWLTyBJbrGHfRIA5BUxHBsAhLFkjwz0r0KOigefJ42E= Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com (52.133.30.10) by AM6PR0402MB3895.eurprd04.prod.outlook.com (52.133.29.158) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1813.11; Tue, 16 Apr 2019 03:22:33 +0000 Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2]) by AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2%6]) with mapi id 15.20.1792.020; Tue, 16 Apr 2019 03:22:33 +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 , Peng Fan , "heiko@sntech.de" , "horms+renesas@verge.net.au" , "agross@kernel.org" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "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 V12 4/5] defconfig: arm64: add i.MX system controller thermal support Thread-Topic: [PATCH V12 4/5] defconfig: arm64: add i.MX system controller thermal support Thread-Index: AQHU9AOhN40rowWqqUG8uS4B1vp4eg== Date: Tue, 16 Apr 2019 03:22:33 +0000 Message-ID: <1555384609-7030-4-git-send-email-Anson.Huang@nxp.com> References: <1555384609-7030-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1555384609-7030-1-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: HK2PR02CA0133.apcprd02.prod.outlook.com (2603:1096:202:16::17) 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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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR0402MB3895; H:AM6PR0402MB3911.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: J12aJnwbFb8v3OY0S6UMR9h9r8SPQazi5QLgKNuPlbTSBVpBSJ6NNioLD3Es1o+rFucPN9mOUndrVgOJERdZsOdITzXx5rmwvQxicu8RIu6kiuMYVcbHa7FvqTy6/v/fIdVsygHqNhL2kHJ1uFcDJYc492iT5yda0tcdpyyK0pQP4Sx26+SPflgN4YQ2FOK9Q1JMQKOlITCOxCnXcSFCss6iKWTxqwPjhvOmP5b3pkmyZoJLePdzxqqbODfDUl1eZUWfw2WpDZ/ncL9rs1pEhokRY5BFGl4WWaPuzTj5bnymSZNYvvWX5k1hW3w82rdFKBrZl2VkLkO3gkkldm/Cov9MSlGUzq9Sx2gV8jX8dXatDq1tf0r4DuLWvpjWNR+wcKB60VlpHpM5kKtcgRBVXLADhtkqBwhEcSKIQ5D+iU4= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5039116f-ec7d-416d-536f-08d6c21ac3eb X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Apr 2019 03:22:33.6244 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3895 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch enables CONFIG_IMX_SC_THERMAL as module. Signed-off-by: Anson Huang --- No change. --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 17daa97..fbe3be7 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -425,6 +425,7 @@ CONFIG_SENSORS_INA2XX=m CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y CONFIG_CPU_THERMAL=y CONFIG_THERMAL_EMULATION=y +CONFIG_IMX_SC_THERMAL=m CONFIG_ROCKCHIP_THERMAL=m CONFIG_RCAR_THERMAL=y CONFIG_RCAR_GEN3_THERMAL=y From patchwork Tue Apr 16 03:22:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1086037 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="xtmrdRba"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jrKM4mf9z9s4Y for ; Tue, 16 Apr 2019 13:22:47 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726094AbfDPDWq (ORCPT ); Mon, 15 Apr 2019 23:22:46 -0400 Received: from mail-eopbgr70057.outbound.protection.outlook.com ([40.107.7.57]:6080 "EHLO EUR04-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726214AbfDPDWq (ORCPT ); Mon, 15 Apr 2019 23:22:46 -0400 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=/zhZUK8a7EHp1l/t3UQPLIdj9NbNdeZFY/KwdVuyddk=; b=xtmrdRbacMmCuKUOdLh4rriyxqtQkvrxfP0n3BuU5lFKS92Xhqo/7C9ruK60LglfmqJqOlS8dBgiZDW2Jj+wWgQG2N5qNYLm6PjTif11xZo17yn8W8iUCtAn/CZsF+WJ9OfyotE7VAW9CzMYTQQV1UCIwSF470hPVXtmSP3h7nA= Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com (52.133.30.10) by AM6PR0402MB3895.eurprd04.prod.outlook.com (52.133.29.158) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1813.11; Tue, 16 Apr 2019 03:22:41 +0000 Received: from AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2]) by AM6PR0402MB3911.eurprd04.prod.outlook.com ([fe80::c854:fc94:f9ed:2ca2%6]) with mapi id 15.20.1792.020; Tue, 16 Apr 2019 03:22:41 +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 , Peng Fan , "heiko@sntech.de" , "horms+renesas@verge.net.au" , "agross@kernel.org" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "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 V12 5/5] arm64: dts: imx: add i.MX8QXP thermal support Thread-Topic: [PATCH V12 5/5] arm64: dts: imx: add i.MX8QXP thermal support Thread-Index: AQHU9AOm/CUJEiXv10OrLxJ5rIIsIg== Date: Tue, 16 Apr 2019 03:22:41 +0000 Message-ID: <1555384609-7030-5-git-send-email-Anson.Huang@nxp.com> References: <1555384609-7030-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1555384609-7030-1-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: HK2PR02CA0133.apcprd02.prod.outlook.com (2603:1096:202:16::17) 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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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR0402MB3895; H:AM6PR0402MB3911.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: /yGmAIfk+pGHhmS34AO8FEl2d1JdetgPHF8d/uxeuoxPyOVapgInzI+Or+6ZP9bZWgDMbJi5KA8B+xyl2J8a6tcQMH9W88kLXkjo2dLF7Bk1n6t2uZFcJID5pQ5gBV92c/CStHxAGKWxKCiNUuL2dftNP1tZ0bVHeCS9GpeRkAk6R5DKTtk5DkK5xiCp0GSowOSRd3bm9n2LoYaX2U5zmr43YTaeS5qxiwIPqvCEW0lbre1ORzksINqQDiOczCftA+hanaWaMCS554PUcjrBxeCWCt66mwKA76EeN1D8i/S4cqEjFigj6A5VWZMfnIbK9eoAGR3nU1ZRt+MQV+mT547fgJ69dUBW3JYcC3QdLpmnycVjQh9NnsqpjDeFA/la9t0gc9sx5is5Jg20d222A03k52FwMBIiSo1eCklF44c= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 98125c35-a565-459b-544b-08d6c21ac8a2 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Apr 2019 03:22:41.3185 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3895 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add i.MX8QXP CPU thermal zone support. Signed-off-by: Anson Huang Reviewed-by: Daniel Lezcano Reviewed-by: Rob Herring --- Changes since V11: - add cooling device for all secondary CPUs. --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 37 ++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi index 0683ee2..5eeaddc 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi @@ -10,6 +10,7 @@ #include #include #include +#include / { interrupt-parent = <&gic>; @@ -149,6 +150,11 @@ rtc: rtc { compatible = "fsl,imx8qxp-sc-rtc"; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; timer { @@ -522,4 +528,35 @@ compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>; }; + + thermal_zones: thermal-zones { + cpu-thermal0 { + polling-delay-passive = <250>; + polling-delay = <2000>; + thermal-sensors = <&tsens IMX_SC_R_SYSTEM>; + trips { + cpu_alert0: trip0 { + temperature = <107000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_crit0: trip1 { + temperature = <127000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&A35_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&A35_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&A35_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&A35_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + + }; + }; + }; + }; };