From patchwork Wed Apr 10 06:01:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 10893181 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F8841390 for ; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 67BA22898D for ; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5AD14289A7; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E70792898D for ; 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Wed, 10 Apr 2019 06:01:22 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170%3]) with mapi id 15.20.1771.016; Wed, 10 Apr 2019 06:01:22 +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" , Peng Fan , Daniel Baluta , "horms+renesas@verge.net.au" , "heiko@sntech.de" , Andy Gross , "maxime.ripard@bootlin.com" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "ezequiel@collabora.com" , "stefan.wahren@i2se.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 V11 1/4] dt-bindings: fsl: scu: add thermal binding Thread-Topic: [PATCH V11 1/4] dt-bindings: fsl: scu: add thermal binding Thread-Index: AQHU72LSVW04XBliYEW8yphj5Jq4XA== Date: Wed, 10 Apr 2019 06:01:22 +0000 Message-ID: <1554875779-19727-1-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: HK2PR02CA0178.apcprd02.prod.outlook.com (2603:1096:201:21::14) 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-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: C441z2sElrhCK8foJFpgmj98gEBuqL1uRbJc1PPDp/IpmNbg8IQmxxVje2vYzPz+4hO3jzWJZi0jLHkJDxI+KBuiMBC6oALotj+HVkqZVG1eMHaB+nYFqH86vFES5VndTBMHtjiwiFdxYJljGSyZi6Uq4QEj0bTCujPgu4FIaRDiH3rVtkXTfuSKTSt6noIjZjgHRqzdAs10M7kmSfnbH0qxJdSw7shju6zgMUv54vdmgHxZOdOCXZpCECer55XkkUTtwQrJKeLL1Gw6mAk2YowwsZvTpHgw5N8MJHs0kW/f5Ok6fPA7ipB5YwoHfyRPHsF+fdA3j4GG3Yd/wRwdWGs5/CaggvqNnoULfC1/iPNTgaQeFvQjWKkP3ZIX3ulI4tdYwvRNqhAhBhPgvDLQJeV4WtFLJGDM307N/Zhk7ws= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 67bc99f6-fa7a-4269-defe-08d6bd79f52b X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Apr 2019 06:01:22.5512 (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: DB3PR0402MB3705 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- Changes since V10: - remove property "imx,sensor-resource-id". -- .../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 Wed Apr 10 06:01:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 10893183 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E19E0139A for ; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9EA72898D for ; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BDF72289A5; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E239289A3 for ; Wed, 10 Apr 2019 06:01:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727382AbfDJGBi (ORCPT ); Wed, 10 Apr 2019 02:01:38 -0400 Received: from mail-eopbgr140053.outbound.protection.outlook.com ([40.107.14.53]:50149 "EHLO EUR01-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725924AbfDJGBh (ORCPT ); Wed, 10 Apr 2019 02:01:37 -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=orjKlCVHXrwxafKzAP89ZK1y6z3BVga/JXa6K4sY+wY=; b=WSbJSjzW9lfXyePli24bAqxeQ1AXdBUkpbUH/ObDDtXoQI21wGwKSoLlQbQy5lHIHxTrPMLhK4gjCQOqFzy8wiIpxNyt9Blo/E2+QbbwWdgPlQxetHAxhZtnI5IRVZ/6F1HKx+f3lHcL4f4S13KqCiS63Wk3Gx1AjI6s9JaiHjM= Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com (52.134.72.18) by DB3PR0402MB3705.eurprd04.prod.outlook.com (52.134.70.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1771.15; Wed, 10 Apr 2019 06:01:31 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170%3]) with mapi id 15.20.1771.016; Wed, 10 Apr 2019 06:01:31 +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" , Peng Fan , Daniel Baluta , "horms+renesas@verge.net.au" , "heiko@sntech.de" , Andy Gross , "maxime.ripard@bootlin.com" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "ezequiel@collabora.com" , "stefan.wahren@i2se.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 V11 2/4] thermal: imx_sc: add i.MX system controller thermal support Thread-Topic: [PATCH V11 2/4] thermal: imx_sc: add i.MX system controller thermal support Thread-Index: AQHU72LYrFN7x/74dk2Q52FrdIyl5w== Date: Wed, 10 Apr 2019 06:01:31 +0000 Message-ID: <1554875779-19727-2-git-send-email-Anson.Huang@nxp.com> References: <1554875779-19727-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1554875779-19727-1-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: HK2PR02CA0178.apcprd02.prod.outlook.com (2603:1096:201:21::14) 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-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: Ot7XHR5X1Mf2Zr8M8Wug5jV+jPgOhnV0tSps1b5Gk4VBjDPyR30d48SWbbmxTtGHsAVyE+yAeLWIvzRg48ukNSOYMb2J15LJFJfRAppX9wapmZJbrgHjZ8Zhyt8n2070aQSKNlKH0Gqp16SkkLhgHKkRWg80b/oorW6COouIVC456H27RJd/1miR5bHkF2QSVjOjCG5FyPkNb65g4avIsFjcSfSMn1utAXr4jkF93LW/6viyiEYRnyI/TkLOW0TcCGHY/Besxmty+dvETabHm6UfpdYb4uc1H2/hgUmmdKfXeAlSosGUkwkzqfvfWEFTf/kHwOF9VLg44hsaYPoAc2GmOOU+UgVjKiJlZu6t3Ie7y5AaQByPFT9FHd3PQSCp/0/3RoseicMAa8oMVP8flohnsSCMXqvlE51kIUJ1uEI= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: cee9e31c-3751-41a1-9e41-08d6bd79fa69 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Apr 2019 06:01:31.3465 (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: DB3PR0402MB3705 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 V10: - remove "imx,sensor-resource-id" property, put the HW resource ID inside thermal-zones node, and driver needs to parse the phandle argument to get HW resource ID and use it to register thermal zone. --- drivers/thermal/Kconfig | 11 +++ drivers/thermal/Makefile | 1 + drivers/thermal/imx_sc_thermal.c | 159 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 171 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..0af0f09 --- /dev/null +++ b/drivers/thermal/imx_sc_thermal.c @@ -0,0 +1,159 @@ +// 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; +} __packed; + +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_get_sensor_id(struct device_node *sensor_np, u32 *id) +{ + struct of_phandle_args sensor_specs; + int ret; + + ret = of_parse_phandle_with_args(sensor_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 { + return -EINVAL; + } + + return 0; +} + +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 imx_sc_sensor *sensor = + devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL); + if (!sensor) + return -ENOMEM; + + ret = imx_sc_thermal_get_sensor_id(child, &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 Wed Apr 10 06:01:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 10893185 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CCCE6139A for ; Wed, 10 Apr 2019 06:01:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B432C2898D for ; Wed, 10 Apr 2019 06:01:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A7C87289A5; Wed, 10 Apr 2019 06:01:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4EE492898D for ; 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Signed-off-by: Anson Huang --- No changes. --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 9e313f5..d4c404a 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -415,6 +415,7 @@ 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 Wed Apr 10 06:01:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 10893191 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 325B51390 for ; Wed, 10 Apr 2019 06:02:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C59C289A5 for ; 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Signed-off-by: Anson Huang --- Changes since V10: - remove property "imx,sensor-resource-id" and put HW resource ID inside each thermal-sensors' phandle argument. --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 33 ++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi index 70ef3db..cc1d877 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 { @@ -484,4 +490,31 @@ power-domains = <&pd IMX_SC_R_GPIO_7>; }; }; + + 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>; + }; + }; + }; + }; };