From patchwork Tue Jun 18 02:18:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11000809 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 19CE814DB for ; Tue, 18 Jun 2019 02:17:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 07E1C288C5 for ; Tue, 18 Jun 2019 02:17:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EF725288CA; Tue, 18 Jun 2019 02:17:07 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 99B3E288C7 for ; Tue, 18 Jun 2019 02:17:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=c836X6tv6LnoF6JYlzKcyJgXf4OF9rxvjv8f7GU+jNo=; b=ku9 Ukv0FNzhe8PajlwdzuD6T/6O4w5eUiBrI08jfGRBF32VO89y9FsgAhDxVzqQP8K2H2UQItEhiunJ4 IjVaUXFYrFNdAHfyyiFkOVKwPQl9aFmP/dd5BL/LjJBnRT3jZIhsWD1T7DT326ZkwQYcgClreHHMv VMYoxA107ZJybi50LpiZMlDs2TGo3rtADGoSOfmZQycX7CkljMZzRdM8b3c3f3UPTMLJ3Mox3lau2 lj+PvxNS61nGuzIqfg9mzeQhgectX+gyAmp6DtsxokvcJEstO6vEEc7DzlYnWFKbZFiXRBhJQPX56 Aclfkvg1Ztj8u/bm1/3JurTpXkACQ3w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gI-0001tA-A6; Tue, 18 Jun 2019 02:17:06 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gF-0001j5-7R for linux-arm-kernel@lists.infradead.org; Tue, 18 Jun 2019 02:17:04 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id CAC3D1A0DD0; Tue, 18 Jun 2019 04:16:55 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 342261A001B; Tue, 18 Jun 2019 04:16:40 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 66FB9402A0; Tue, 18 Jun 2019 10:16:26 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, horms+renesas@verge.net.au, olof@lixom.net, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, leonard.crestez@nxp.com, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH V15 1/5] dt-bindings: fsl: scu: add thermal binding Date: Tue, 18 Jun 2019 10:18:16 +0800 Message-Id: <20190618021820.14885-1-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190617_191703_411185_0D537DF2 X-CRM114-Status: UNSURE ( 6.54 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang 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 Reviewed-by: Dong Aisheng --- No change. --- .../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 a575e42..fc3844e 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -155,6 +155,17 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +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 { @@ -222,6 +233,11 @@ firmware { compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; }; From patchwork Tue Jun 18 02:18:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11000819 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 E3652924 for ; Tue, 18 Jun 2019 02:17:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D2F32288C5 for ; Tue, 18 Jun 2019 02:17:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C67A7288CA; Tue, 18 Jun 2019 02:17:23 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 552F0288C7 for ; 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Tue, 18 Jun 2019 02:17:22 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gF-0001jK-Tq for linux-arm-kernel@lists.infradead.org; Tue, 18 Jun 2019 02:17:05 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 654DF2002F1; Tue, 18 Jun 2019 04:16:58 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 3365120020A; Tue, 18 Jun 2019 04:16:42 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 2DA2F402F0; Tue, 18 Jun 2019 10:16:29 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, horms+renesas@verge.net.au, olof@lixom.net, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, leonard.crestez@nxp.com, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH V15 2/5] thermal: of-thermal: add API for getting sensor ID from DT Date: Tue, 18 Jun 2019 10:18:17 +0800 Message-Id: <20190618021820.14885-2-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190618021820.14885-1-Anson.Huang@nxp.com> References: <20190618021820.14885-1-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190617_191704_241765_0F7C3C47 X-CRM114-Status: GOOD ( 15.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang 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. It's useful for thermal driver to register the specific thermal zone devices from DT in a common way. Signed-off-by: Anson Huang Reviewed-by: Dong Aisheng --- Changes since V14: - improve the commit message, document and comment, no code change. --- Documentation/thermal/sysfs-api.txt | 8 +++++ drivers/thermal/of-thermal.c | 65 ++++++++++++++++++++++++++++--------- include/linux/thermal.h | 10 ++++++ 3 files changed, 67 insertions(+), 16 deletions(-) diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index c3fa500..5d3f84e 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -159,6 +159,14 @@ temperature) and throttle appropriate devices. for the thermal zone device, which might be useful for platform drivers for temperature calculations. +1.1.9 int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct device_node *sensor_np, + u32 *id) + + This interface is used to get the sensor id from the given thermal + zone in DT, which might be useful for thermal drivers to register + specific thermal zone device in a common way. + 1.2 thermal cooling device interface 1.2.1 struct thermal_cooling_device *thermal_cooling_device_register(char *name, void *devdata, struct thermal_cooling_device_ops *) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index dc5093b..2422cc4 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -449,6 +449,53 @@ 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_np: a sensor node of a valid sensor device. + * @id: the sensor ID returned if success. + * + * This function will get sensor ID from a given thermal zone node and + * the sensor node must match the temperature provider @sensor_np. + * + * Return: 0 on success, proper error code otherwise. + */ + +int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct device_node *sensor_np, + u32 *id) +{ + struct of_phandle_args sensor_specs; + 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.np != sensor_np) { + of_node_put(sensor_specs.np); + return -ENODEV; + } + + 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; + } + + of_node_put(sensor_specs.np); + + 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. @@ -499,36 +546,22 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, sensor_np = of_node_get(dev->of_node); for_each_available_child_of_node(np, child) { - struct of_phandle_args sensor_specs; 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_np, &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) { + if (id == sensor_id) { tzd = thermal_zone_of_add_sensor(child, sensor_np, data, ops); if (!IS_ERR(tzd)) tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); - of_node_put(sensor_specs.np); of_node_put(child); goto exit; } - of_node_put(sensor_specs.np); } exit: of_node_put(sensor_np); diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 15a4ca5..5edffe6 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 device_node *sensor_np, + 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 device_node *sensor_np, + 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 Jun 18 02:18:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11000821 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 F1034924 for ; Tue, 18 Jun 2019 02:17:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E0301288C5 for ; Tue, 18 Jun 2019 02:17:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D4395288CA; Tue, 18 Jun 2019 02:17:47 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6037D288C5 for ; 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Tue, 18 Jun 2019 02:17:41 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gG-0001ra-Ad for linux-arm-kernel@lists.infradead.org; Tue, 18 Jun 2019 02:17:06 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id AFAE820020A; Tue, 18 Jun 2019 04:17:01 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 7566C200304; Tue, 18 Jun 2019 04:16:46 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EB08A402AF; Tue, 18 Jun 2019 10:16:31 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, horms+renesas@verge.net.au, olof@lixom.net, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, leonard.crestez@nxp.com, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH V15 3/5] thermal: imx_sc: add i.MX system controller thermal support Date: Tue, 18 Jun 2019 10:18:18 +0800 Message-Id: <20190618021820.14885-3-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190618021820.14885-1-Anson.Huang@nxp.com> References: <20190618021820.14885-1-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190617_191704_649880_27AEA9FA X-CRM114-Status: GOOD ( 15.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang 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 --- No change. --- drivers/thermal/Kconfig | 11 +++ drivers/thermal/Makefile | 1 + drivers/thermal/imx_sc_thermal.c | 142 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 154 insertions(+) create mode 100644 drivers/thermal/imx_sc_thermal.c diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 9966364..454cbe5 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -233,6 +233,17 @@ 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 + 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 74a37c7..717a1ba 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -41,6 +41,7 @@ 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..d406ecb --- /dev/null +++ b/drivers/thermal/imx_sc_thermal.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018-2019 NXP. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "thermal_core.h" + +#define IMX_SC_MISC_FUNC_GET_TEMP 13 + +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) { + dev_err(&sensor->tzd->device, "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, *sensor_np; + struct imx_sc_sensor *sensor; + 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; + + sensor_np = of_node_get(pdev->dev.of_node); + + for_each_available_child_of_node(np, child) { + sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL); + if (!sensor) { + of_node_put(sensor_np); + return -ENOMEM; + } + + ret = thermal_zone_of_get_sensor_id(child, + sensor_np, + &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; + } + } + + of_node_put(sensor_np); + + 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 Jun 18 02:18:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11000823 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 5A06914DB for ; 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bh=Y0dKRRsI/5sWuvUopeZKEonIWZLLrdEiKyrrUAZGuAY=; b=KZvlf0rKIT8x8uWB3/tOhWxHSi rlohoyz9O7LZSTPiNd3cIqh9WCrbX04DQmWdmO983kmywAk5+56pd7xqGfBLWAFH9Z64Xq/pQ+dvN KpECAb1H15WFRgtwJRStf9FKd9bNHun9nl8t03sDNwaq3gNPniJ17iHhB0K5ZVgW2jJIOzGRX1UvP DDnEgJfB9dJHLluu5H1e65X9HNGdIhR7ZlW+Ai0Wno+wgwr5fwUg2kkc+QQhxinsETxzPUFBGSmPQ a3dk57Or1up/9kSaO6EQjj2Nh3Fch4VbKbt2Bs5J3i9qlf43Jzd/lV04BIbEfD6835UF5FAA5ZZiR fIsoPkdg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hd3h3-0002bP-Rs; Tue, 18 Jun 2019 02:17:53 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gH-0001s8-C1 for linux-arm-kernel@lists.infradead.org; Tue, 18 Jun 2019 02:17:06 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0E83D1A02E0; Tue, 18 Jun 2019 04:17:04 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6BCBD1A02EC; Tue, 18 Jun 2019 04:16:48 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id A41E5402F1; Tue, 18 Jun 2019 10:16:34 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, horms+renesas@verge.net.au, olof@lixom.net, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, leonard.crestez@nxp.com, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH V15 4/5] defconfig: arm64: add i.MX system controller thermal support Date: Tue, 18 Jun 2019 10:18:19 +0800 Message-Id: <20190618021820.14885-4-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190618021820.14885-1-Anson.Huang@nxp.com> References: <20190618021820.14885-1-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190617_191705_544264_23D986DB X-CRM114-Status: UNSURE ( 5.98 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang 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 c40ec41..29f7768 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -415,6 +415,7 @@ CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y CONFIG_CPU_THERMAL=y CONFIG_THERMAL_EMULATION=y CONFIG_QORIQ_THERMAL=m +CONFIG_IMX_SC_THERMAL=m CONFIG_ROCKCHIP_THERMAL=m CONFIG_RCAR_THERMAL=y CONFIG_RCAR_GEN3_THERMAL=y From patchwork Tue Jun 18 02:18:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11000825 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 65F2A14DB for ; Tue, 18 Jun 2019 02:18:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 52C56286DA for ; Tue, 18 Jun 2019 02:18:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 412EE288E4; Tue, 18 Jun 2019 02:18:15 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E19DC286DA for ; Tue, 18 Jun 2019 02:18:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=ujt/HBGZ2+EDEzpGq+/7XQI2/7iy1xEg6/aQfF8YkYI=; b=JhFdOsCIASVz3HOwSd3WVwK/6h Vyy5qJ3cXr8q7j4T/Vv33uDC1k3eLvWEf6ewwXUKo5Xz0oKssuf5cctwlCJDC4PfQzOHw6lGc6hYQ y51JSAPIYLTk9/CyyI10k42lJzqyXeBPeg4sNJH05G7/aXaQ7AH5wmMtO2gNLC7p7bVTUsoDRZQFV 3jNCaaQZHU9xnF/i5D6uzSGUuw5wwb1mD8RY7zg9OXCARZSymZd3TuX2InUqKgpYVYWvdu//X4NQT IQjEi3MdtQSa2LTAdKcpZi6C7IR01Q016gIwmskMbQIMHuf1+RqJLmOKURlu1hUnuOWBp/U7PH0CS oiqBPToQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hd3hO-0002rN-6g; Tue, 18 Jun 2019 02:18:14 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hd3gK-0001uB-8d for linux-arm-kernel@lists.infradead.org; Tue, 18 Jun 2019 02:17:09 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id EF2E01A02EC; Tue, 18 Jun 2019 04:17:06 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 2A58C1A0DC1; Tue, 18 Jun 2019 04:16:51 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 63B36402F2; Tue, 18 Jun 2019 10:16:37 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, horms+renesas@verge.net.au, olof@lixom.net, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, leonard.crestez@nxp.com, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH V15 5/5] arm64: dts: imx: add i.MX8QXP thermal support Date: Tue, 18 Jun 2019 10:18:20 +0800 Message-Id: <20190618021820.14885-5-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190618021820.14885-1-Anson.Huang@nxp.com> References: <20190618021820.14885-1-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190617_191708_508869_C6251CB8 X-CRM114-Status: UNSURE ( 6.91 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang Add i.MX8QXP CPU thermal zone support. Signed-off-by: Anson Huang --- No change. --- 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 b2cb818..12044be 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>; @@ -168,6 +169,11 @@ compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; timer { @@ -536,4 +542,35 @@ 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>, + <&A35_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&A35_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&A35_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + + }; + }; + }; + }; };