From patchwork Thu Apr 23 16:57:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 11506067 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 242C5912 for ; Thu, 23 Apr 2020 16:57:42 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CCA332075A for ; Thu, 23 Apr 2020 16:57:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uMQ5r/k/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CCA332075A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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=aD6VWMtxFsnPtb832IN28X+U8XQx9Xkx7ob9ySlOds8=; b=uMQ5r/k/99goL5nLLtJkHm7xVD inKoMq3NX/FHOjAVso8uTDWt702sTz0Rx5Bo9Zyj8axVqdSEX+gFNy3xUgHRy/qnRjN1DxvIwir1G 0Vpg1QZ25TlFk3mA37hgBovky0QRMFHwms8gkgOMnY3ImOzOrFNGLiZkJlcSauv6N+qtoa1q8VZwn nYdDxpCUIlyysPGlFsMzDhbhZUfAnnWrJGXpF+aUlRPtuuS0zGRU7yTUVo9cf7lS0mZfPl7LBHStV w+DZ+33z3iRjkYXcZ0ecKZPuV3AmfYY6fBbdVGz5JYE6Bg6TUoJMxE4Kc7vqW24mxXnSBlkLzD60l oNuSAyKA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRfAR-0005Sm-AJ; Thu, 23 Apr 2020 16:57:39 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRfA6-0005BG-PQ for linux-arm-kernel@lists.infradead.org; Thu, 23 Apr 2020 16:57:22 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id EF5302A280E From: Andrzej Pietrasiewicz To: linux-pm@vger.kernel.org Subject: [PATCH v3 1/2] thermal: core: Let thermal zone device's mode be stored in its struct Date: Thu, 23 Apr 2020 18:57:04 +0200 Message-Id: <20200423165705.13585-2-andrzej.p@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200423165705.13585-1-andrzej.p@collabora.com> References: <20200423165705.13585-1-andrzej.p@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200423_095719_089003_D8D6DF4A X-CRM114-Status: GOOD ( 18.34 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [46.235.227.227 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 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: Heiko Stuebner , "Rafael J . Wysocki" , platform-driver-x86@vger.kernel.org, kernel@collabora.com, Fabio Estevam , Amit Kucheria , Chunyan Zhang , Daniel Lezcano , linux-acpi@vger.kernel.org, NXP Linux Team , Orson Zhai , Zhang Rui , Len Brown , Barlomiej Zolnierkiewicz , Sascha Hauer , Ido Schimmel , Jiri Pirko , Darren Hart , linux-arm-kernel@lists.infradead.org, Support Opensource , netdev@vger.kernel.org, Peter Kaestle , Andrzej Pietrasiewicz , Pengutronix Kernel Team , Baolin Wang , Shawn Guo , "David S . Miller" , Andy Shevchenko MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Thermal zone devices' mode is stored in individual drivers. This patch changes it so that mode is stored in struct thermal_zone_device instead. As a result all driver-specific variables storing the mode are not needed and are removed. Consequently, the get_mode() implementations have nothing to operate on and need to be removed, too. Some thermal framework functions are introduced: thermal_zone_device_get_mode() thermal_zone_device_set_mode() thermal_zone_device_enable() thermal_zone_device_disable() thermal_zone_device_get_mode() and its "set" counterpart take tzd's lock and the "set" calls driver's set_mode() if provided, so the latter must not take this lock again. At the end of the "set" thermal_zone_device_update() is called so drivers don't need to repeat this invocation in their specific set_mode() implementations. struct thermal_zone_params gains a new member called initial_mode, which is used to set tzd's mode at registration time and if tzp is not provided to thermal_zone_device_register() then it is assumed that the initial mode is THERMAL_DEVICE_ENABLED. The sysfs "mode" attribute is always exposed from now on, because all thermal zone devices now have their get_mode() implemented at the generic level and it is always available. Exposing "mode" doesn't hurt the drivers which don't provide their own set_mode(), because writing to "mode" will result in -EPERM, as expected. Signed-off-by: Andrzej Pietrasiewicz Reviewed-by: Bartlomiej Zolnierkiewicz --- drivers/acpi/thermal.c | 35 ++----------- .../ethernet/mellanox/mlxsw/core_thermal.c | 42 ---------------- drivers/platform/x86/acerhdf.c | 17 ++----- drivers/thermal/da9062-thermal.c | 11 ----- drivers/thermal/hisi_thermal.c | 6 ++- drivers/thermal/imx_thermal.c | 36 ++------------ .../intel/int340x_thermal/int3400_thermal.c | 31 ++---------- .../int340x_thermal/int340x_thermal_zone.c | 1 + .../thermal/intel/intel_quark_dts_thermal.c | 30 +++--------- drivers/thermal/intel/x86_pkg_temp_thermal.c | 1 + drivers/thermal/of-thermal.c | 24 +-------- drivers/thermal/rockchip_thermal.c | 6 ++- drivers/thermal/sprd_thermal.c | 6 ++- drivers/thermal/thermal_core.c | 49 +++++++++++++++---- drivers/thermal/thermal_core.h | 3 ++ drivers/thermal/thermal_sysfs.c | 29 ++--------- include/linux/thermal.h | 22 ++++++++- 17 files changed, 105 insertions(+), 244 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 19067a5e5293..d1f352ed5241 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -172,7 +172,6 @@ struct acpi_thermal { struct acpi_thermal_trips trips; struct acpi_handle_list devices; struct thermal_zone_device *thermal_zone; - int tz_enabled; int kelvin_offset; /* in millidegrees */ struct work_struct thermal_check_work; }; @@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data) { struct acpi_thermal *tz = data; - if (!tz->tz_enabled) + if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED) return; thermal_zone_device_update(tz->thermal_zone, @@ -526,25 +525,10 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp) return 0; } -static int thermal_get_mode(struct thermal_zone_device *thermal, - enum thermal_device_mode *mode) -{ - struct acpi_thermal *tz = thermal->devdata; - - if (!tz) - return -EINVAL; - - *mode = tz->tz_enabled ? THERMAL_DEVICE_ENABLED : - THERMAL_DEVICE_DISABLED; - - return 0; -} - static int thermal_set_mode(struct thermal_zone_device *thermal, enum thermal_device_mode mode) { struct acpi_thermal *tz = thermal->devdata; - int enable; if (!tz) return -EINVAL; @@ -552,20 +536,14 @@ static int thermal_set_mode(struct thermal_zone_device *thermal, /* * enable/disable thermal management from ACPI thermal driver */ - if (mode == THERMAL_DEVICE_ENABLED) - enable = 1; - else if (mode == THERMAL_DEVICE_DISABLED) { - enable = 0; + if (mode == THERMAL_DEVICE_DISABLED) pr_warn("thermal zone will be disabled\n"); - } else - return -EINVAL; - if (enable != tz->tz_enabled) { - tz->tz_enabled = enable; + if (mode != thermal->mode) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s kernel ACPI thermal control\n", - tz->tz_enabled ? "Enable" : "Disable")); - acpi_thermal_check(tz); + mode == THERMAL_DEVICE_ENABLED ? + "Enable" : "Disable")); } return 0; } @@ -856,7 +834,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = { .bind = acpi_thermal_bind_cooling_device, .unbind = acpi_thermal_unbind_cooling_device, .get_temp = thermal_get_temp, - .get_mode = thermal_get_mode, .set_mode = thermal_set_mode, .get_trip_type = thermal_get_trip_type, .get_trip_temp = thermal_get_trip_temp, @@ -913,8 +890,6 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) if (ACPI_FAILURE(status)) return -ENODEV; - tz->tz_enabled = 1; - dev_info(&tz->device->dev, "registered as thermal_zone%d\n", tz->thermal_zone->id); return 0; diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c index ce0a6837daa3..5d28384046da 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c @@ -98,7 +98,6 @@ struct mlxsw_thermal_module { struct mlxsw_thermal *parent; struct thermal_zone_device *tzdev; struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS]; - enum thermal_device_mode mode; int module; /* Module or gearbox number */ }; @@ -110,7 +109,6 @@ struct mlxsw_thermal { struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX]; u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1]; struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS]; - enum thermal_device_mode mode; struct mlxsw_thermal_module *tz_module_arr; u8 tz_module_num; struct mlxsw_thermal_module *tz_gearbox_arr; @@ -277,33 +275,16 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev, return 0; } -static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev, - enum thermal_device_mode *mode) -{ - struct mlxsw_thermal *thermal = tzdev->devdata; - - *mode = thermal->mode; - - return 0; -} - static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev, enum thermal_device_mode mode) { struct mlxsw_thermal *thermal = tzdev->devdata; - mutex_lock(&tzdev->lock); - if (mode == THERMAL_DEVICE_ENABLED) tzdev->polling_delay = thermal->polling_delay; else tzdev->polling_delay = 0; - mutex_unlock(&tzdev->lock); - - thermal->mode = mode; - thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED); - return 0; } @@ -407,7 +388,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev, static struct thermal_zone_device_ops mlxsw_thermal_ops = { .bind = mlxsw_thermal_bind, .unbind = mlxsw_thermal_unbind, - .get_mode = mlxsw_thermal_get_mode, .set_mode = mlxsw_thermal_set_mode, .get_temp = mlxsw_thermal_get_temp, .get_trip_type = mlxsw_thermal_get_trip_type, @@ -466,34 +446,17 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev, return err; } -static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev, - enum thermal_device_mode *mode) -{ - struct mlxsw_thermal_module *tz = tzdev->devdata; - - *mode = tz->mode; - - return 0; -} - static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev, enum thermal_device_mode mode) { struct mlxsw_thermal_module *tz = tzdev->devdata; struct mlxsw_thermal *thermal = tz->parent; - mutex_lock(&tzdev->lock); - if (mode == THERMAL_DEVICE_ENABLED) tzdev->polling_delay = thermal->polling_delay; else tzdev->polling_delay = 0; - mutex_unlock(&tzdev->lock); - - tz->mode = mode; - thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED); - return 0; } @@ -596,7 +559,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip, static struct thermal_zone_device_ops mlxsw_thermal_module_ops = { .bind = mlxsw_thermal_module_bind, .unbind = mlxsw_thermal_module_unbind, - .get_mode = mlxsw_thermal_module_mode_get, .set_mode = mlxsw_thermal_module_mode_set, .get_temp = mlxsw_thermal_module_temp_get, .get_trip_type = mlxsw_thermal_module_trip_type_get, @@ -635,7 +597,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev, static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = { .bind = mlxsw_thermal_module_bind, .unbind = mlxsw_thermal_module_unbind, - .get_mode = mlxsw_thermal_module_mode_get, .set_mode = mlxsw_thermal_module_mode_set, .get_temp = mlxsw_thermal_gearbox_temp_get, .get_trip_type = mlxsw_thermal_module_trip_type_get, @@ -765,7 +726,6 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) return err; } - module_tz->mode = THERMAL_DEVICE_ENABLED; return 0; } @@ -881,7 +841,6 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) if (IS_ERR(gearbox_tz->tzdev)) return PTR_ERR(gearbox_tz->tzdev); - gearbox_tz->mode = THERMAL_DEVICE_ENABLED; return 0; } @@ -1050,7 +1009,6 @@ int mlxsw_thermal_init(struct mlxsw_core *core, if (err) goto err_unreg_modules_tzdev; - thermal->mode = THERMAL_DEVICE_ENABLED; *p_thermal = thermal; return 0; diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 8cc86f4e3ac1..aaf8b845be90 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -406,22 +406,9 @@ static inline void acerhdf_enable_kernelmode(void) kernelmode = 1; thz_dev->polling_delay = interval*1000; - thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED); pr_notice("kernel mode fan control ON\n"); } -static int acerhdf_get_mode(struct thermal_zone_device *thermal, - enum thermal_device_mode *mode) -{ - if (verbose) - pr_notice("kernel mode fan control %d\n", kernelmode); - - *mode = (kernelmode) ? THERMAL_DEVICE_ENABLED - : THERMAL_DEVICE_DISABLED; - - return 0; -} - /* * set operation mode; * enabled: the thermal layer of the kernel takes care about @@ -488,7 +475,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = { .bind = acerhdf_bind, .unbind = acerhdf_unbind, .get_temp = acerhdf_get_ec_temp, - .get_mode = acerhdf_get_mode, .set_mode = acerhdf_set_mode, .get_trip_type = acerhdf_get_trip_type, .get_trip_hyst = acerhdf_get_trip_hyst, @@ -554,6 +540,7 @@ static int acerhdf_set_cur_state(struct thermal_cooling_device *cdev, err_out: acerhdf_revert_to_bios_mode(); + thz_dev->mode = THERMAL_DEVICE_DISABLED; return -EINVAL; } @@ -739,6 +726,8 @@ static int __init acerhdf_register_thermal(void) if (IS_ERR(cl_dev)) return -EINVAL; + acerhdf_zone_params.initial_mode = + kernelmode ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED; thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL, &acerhdf_dev_ops, &acerhdf_zone_params, 0, diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c index c32709badeda..c3075d038095 100644 --- a/drivers/thermal/da9062-thermal.c +++ b/drivers/thermal/da9062-thermal.c @@ -49,7 +49,6 @@ struct da9062_thermal { struct da9062 *hw; struct delayed_work work; struct thermal_zone_device *zone; - enum thermal_device_mode mode; struct mutex lock; /* protection for da9062_thermal temperature */ int temperature; int irq; @@ -121,14 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data) return IRQ_HANDLED; } -static int da9062_thermal_get_mode(struct thermal_zone_device *z, - enum thermal_device_mode *mode) -{ - struct da9062_thermal *thermal = z->devdata; - *mode = thermal->mode; - return 0; -} - static int da9062_thermal_get_trip_type(struct thermal_zone_device *z, int trip, enum thermal_trip_type *type) @@ -181,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z, static struct thermal_zone_device_ops da9062_thermal_ops = { .get_temp = da9062_thermal_get_temp, - .get_mode = da9062_thermal_get_mode, .get_trip_type = da9062_thermal_get_trip_type, .get_trip_temp = da9062_thermal_get_trip_temp, }; @@ -233,7 +223,6 @@ static int da9062_thermal_probe(struct platform_device *pdev) thermal->config = match->data; thermal->hw = chip; - thermal->mode = THERMAL_DEVICE_ENABLED; thermal->dev = &pdev->dev; INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on); diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c index 2d26ae80e202..ee05950afd2f 100644 --- a/drivers/thermal/hisi_thermal.c +++ b/drivers/thermal/hisi_thermal.c @@ -549,8 +549,10 @@ static void hisi_thermal_toggle_sensor(struct hisi_thermal_sensor *sensor, { struct thermal_zone_device *tzd = sensor->tzd; - tzd->ops->set_mode(tzd, - on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED); + if (on) + thermal_zone_device_enable(tzd); + else + thermal_zone_device_disable(tzd); } static int hisi_thermal_probe(struct platform_device *pdev) diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index e761c9b42217..800d2388c440 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -197,7 +197,6 @@ struct imx_thermal_data { struct cpufreq_policy *policy; struct thermal_zone_device *tz; struct thermal_cooling_device *cdev; - enum thermal_device_mode mode; struct regmap *tempmon; u32 c1, c2; /* See formula in imx_init_calib() */ int temp_passive; @@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp) bool wait; u32 val; - if (data->mode == THERMAL_DEVICE_ENABLED) { + if (tz->mode == THERMAL_DEVICE_ENABLED) { /* Check if a measurement is currently in progress */ regmap_read(map, soc_data->temp_data, &val); wait = !(val & soc_data->temp_valid_mask); @@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp) regmap_read(map, soc_data->temp_data, &val); - if (data->mode != THERMAL_DEVICE_ENABLED) { + if (tz->mode != THERMAL_DEVICE_ENABLED) { regmap_write(map, soc_data->sensor_ctrl + REG_CLR, soc_data->measure_temp_mask); regmap_write(map, soc_data->sensor_ctrl + REG_SET, @@ -331,16 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp) return 0; } -static int imx_get_mode(struct thermal_zone_device *tz, - enum thermal_device_mode *mode) -{ - struct imx_thermal_data *data = tz->devdata; - - *mode = data->mode; - - return 0; -} - static int imx_set_mode(struct thermal_zone_device *tz, enum thermal_device_mode mode) { @@ -376,9 +365,6 @@ static int imx_set_mode(struct thermal_zone_device *tz, } } - data->mode = mode; - thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); - return 0; } @@ -467,7 +453,6 @@ static struct thermal_zone_device_ops imx_tz_ops = { .bind = imx_bind, .unbind = imx_unbind, .get_temp = imx_get_temp, - .get_mode = imx_get_mode, .set_mode = imx_set_mode, .get_trip_type = imx_get_trip_type, .get_trip_temp = imx_get_trip_temp, @@ -831,7 +816,6 @@ static int imx_thermal_probe(struct platform_device *pdev) data->socdata->measure_temp_mask); data->irq_enabled = true; - data->mode = THERMAL_DEVICE_ENABLED; ret = devm_request_threaded_irq(&pdev->dev, data->irq, imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread, @@ -873,19 +857,14 @@ static int imx_thermal_remove(struct platform_device *pdev) static int __maybe_unused imx_thermal_suspend(struct device *dev) { struct imx_thermal_data *data = dev_get_drvdata(dev); - struct regmap *map = data->tempmon; /* * Need to disable thermal sensor, otherwise, when thermal core * try to get temperature before thermal sensor resume, a wrong * temperature will be read as the thermal sensor is powered - * down. + * down. This is done in thermal_zone_device_disable(). */ - regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, - data->socdata->measure_temp_mask); - regmap_write(map, data->socdata->sensor_ctrl + REG_SET, - data->socdata->power_down_mask); - data->mode = THERMAL_DEVICE_DISABLED; + thermal_zone_device_disable(data->tz); clk_disable_unprepare(data->thermal_clk); return 0; @@ -894,18 +873,13 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev) static int __maybe_unused imx_thermal_resume(struct device *dev) { struct imx_thermal_data *data = dev_get_drvdata(dev); - struct regmap *map = data->tempmon; int ret; ret = clk_prepare_enable(data->thermal_clk); if (ret) return ret; /* Enabled thermal sensor after resume */ - regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, - data->socdata->power_down_mask); - regmap_write(map, data->socdata->sensor_ctrl + REG_SET, - data->socdata->measure_temp_mask); - data->mode = THERMAL_DEVICE_ENABLED; + thermal_zone_device_enable(data->tz); return 0; } diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c index e802922a13cf..1751d4b103b1 100644 --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c @@ -44,7 +44,6 @@ static char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { struct int3400_thermal_priv { struct acpi_device *adev; struct thermal_zone_device *thermal; - int mode; int art_count; struct art *arts; int trt_count; @@ -230,54 +229,32 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal, return 0; } -static int int3400_thermal_get_mode(struct thermal_zone_device *thermal, - enum thermal_device_mode *mode) -{ - struct int3400_thermal_priv *priv = thermal->devdata; - - if (!priv) - return -EINVAL; - - *mode = priv->mode; - - return 0; -} - static int int3400_thermal_set_mode(struct thermal_zone_device *thermal, enum thermal_device_mode mode) { struct int3400_thermal_priv *priv = thermal->devdata; - bool enable; int result = 0; if (!priv) return -EINVAL; - if (mode == THERMAL_DEVICE_ENABLED) - enable = true; - else if (mode == THERMAL_DEVICE_DISABLED) - enable = false; - else - return -EINVAL; - - if (enable != priv->mode) { - priv->mode = enable; + if (mode != thermal->mode) { result = int3400_thermal_run_osc(priv->adev->handle, - priv->current_uuid_index, - enable); + priv->current_uuid_index, + mode == THERMAL_DEVICE_ENABLED); } return result; } static struct thermal_zone_device_ops int3400_thermal_ops = { .get_temp = int3400_thermal_get_temp, - .get_mode = int3400_thermal_get_mode, .set_mode = int3400_thermal_set_mode, }; static struct thermal_zone_params int3400_thermal_params = { .governor_name = "user_space", .no_hwmon = true, + .initial_mode = THERMAL_DEVICE_DISABLED, }; static int int3400_thermal_probe(struct platform_device *pdev) diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c index 432213272f1e..b36da9bfbf8a 100644 --- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c +++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c @@ -208,6 +208,7 @@ EXPORT_SYMBOL_GPL(int340x_thermal_read_trips); static struct thermal_zone_params int340x_thermal_params = { .governor_name = "user_space", .no_hwmon = true, + .initial_mode = THERMAL_DEVICE_ENABLED, }; struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev, diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c index d704fc104cfd..02dabd93f607 100644 --- a/drivers/thermal/intel/intel_quark_dts_thermal.c +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c @@ -103,7 +103,6 @@ struct soc_sensor_entry { bool locked; u32 store_ptps; u32 store_dts_enable; - enum thermal_device_mode mode; struct thermal_zone_device *tzone; }; @@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd) return ret; if (out & QRK_DTS_ENABLE_BIT) { - aux_entry->mode = THERMAL_DEVICE_ENABLED; + tzd->mode = THERMAL_DEVICE_ENABLED; return 0; } @@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd) if (ret) return ret; - aux_entry->mode = THERMAL_DEVICE_ENABLED; + tzd->mode = THERMAL_DEVICE_ENABLED; } else { - aux_entry->mode = THERMAL_DEVICE_DISABLED; + tzd->mode = THERMAL_DEVICE_DISABLED; pr_info("DTS is locked. Cannot enable DTS\n"); ret = -EPERM; } @@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd) return ret; if (!(out & QRK_DTS_ENABLE_BIT)) { - aux_entry->mode = THERMAL_DEVICE_DISABLED; + tzd->mode = THERMAL_DEVICE_DISABLED; return 0; } @@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd) if (ret) return ret; - aux_entry->mode = THERMAL_DEVICE_DISABLED; + tzd->mode = THERMAL_DEVICE_DISABLED; } else { - aux_entry->mode = THERMAL_DEVICE_ENABLED; + tzd->mode = THERMAL_DEVICE_ENABLED; pr_info("DTS is locked. Cannot disable DTS\n"); ret = -EPERM; } @@ -309,14 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd, return 0; } -static int sys_get_mode(struct thermal_zone_device *tzd, - enum thermal_device_mode *mode) -{ - struct soc_sensor_entry *aux_entry = tzd->devdata; - *mode = aux_entry->mode; - return 0; -} - static int sys_set_mode(struct thermal_zone_device *tzd, enum thermal_device_mode mode) { @@ -338,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = { .get_trip_type = sys_get_trip_type, .set_trip_temp = sys_set_trip_temp, .get_crit_temp = sys_get_crit_temp, - .get_mode = sys_get_mode, .set_mode = sys_set_mode, }; @@ -414,16 +404,8 @@ static struct soc_sensor_entry *alloc_soc_dts(void) goto err_ret; } - mutex_lock(&dts_update_mutex); - err = soc_dts_enable(aux_entry->tzone); - mutex_unlock(&dts_update_mutex); - if (err) - goto err_aux_status; - return aux_entry; -err_aux_status: - thermal_zone_device_unregister(aux_entry->tzone); err_ret: kfree(aux_entry); return ERR_PTR(err); diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c index a006b9fd1d72..cb810a02aab0 100644 --- a/drivers/thermal/intel/x86_pkg_temp_thermal.c +++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c @@ -56,6 +56,7 @@ struct zone_device { static struct thermal_zone_params pkg_temp_tz_params = { .no_hwmon = true, + .initial_mode = THERMAL_DEVICE_ENABLED, }; /* Keep track of how many zone pointers we allocated in init() */ diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 874a47d6923f..48787a5576d8 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -51,7 +51,6 @@ struct __thermal_bind_params { /** * struct __thermal_zone - internal representation of a thermal zone - * @mode: current thermal zone device mode (enabled/disabled) * @passive_delay: polling interval while passive cooling is activated * @polling_delay: zone polling interval * @slope: slope of the temperature adjustment curve @@ -65,7 +64,6 @@ struct __thermal_bind_params { */ struct __thermal_zone { - enum thermal_device_mode mode; int passive_delay; int polling_delay; int slope; @@ -269,23 +267,11 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal, return 0; } -static int of_thermal_get_mode(struct thermal_zone_device *tz, - enum thermal_device_mode *mode) -{ - struct __thermal_zone *data = tz->devdata; - - *mode = data->mode; - - return 0; -} - static int of_thermal_set_mode(struct thermal_zone_device *tz, enum thermal_device_mode mode) { struct __thermal_zone *data = tz->devdata; - mutex_lock(&tz->lock); - if (mode == THERMAL_DEVICE_ENABLED) { tz->polling_delay = data->polling_delay; tz->passive_delay = data->passive_delay; @@ -294,11 +280,6 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz, tz->passive_delay = 0; } - mutex_unlock(&tz->lock); - - data->mode = mode; - thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); - return 0; } @@ -393,7 +374,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz, } static struct thermal_zone_device_ops of_thermal_ops = { - .get_mode = of_thermal_get_mode, .set_mode = of_thermal_set_mode, .get_trip_type = of_thermal_get_trip_type, @@ -554,7 +534,7 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, tzd = thermal_zone_of_add_sensor(child, sensor_np, data, ops); if (!IS_ERR(tzd)) - tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); + thermal_zone_device_enable(tzd); of_node_put(child); goto exit; @@ -979,7 +959,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) finish: of_node_put(child); - tz->mode = THERMAL_DEVICE_DISABLED; return tz; @@ -1120,6 +1099,7 @@ int __init of_parse_thermal_zones(void) /* these two are left for temperature drivers to use */ tzp->slope = tz->slope; tzp->offset = tz->offset; + tzp->initial_mode = THERMAL_DEVICE_DISABLED; zone = thermal_zone_device_register(child->name, tz->ntrips, mask, tz, diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index 15a71ecc916c..aa9e0e31ef98 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -1068,8 +1068,10 @@ rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on) { struct thermal_zone_device *tzd = sensor->tzd; - tzd->ops->set_mode(tzd, - on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED); + if (on) + thermal_zone_device_enable(tzd); + else + thermal_zone_device_disable(tzd); } static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev) diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c index a340374e8c51..58f995b0f804 100644 --- a/drivers/thermal/sprd_thermal.c +++ b/drivers/thermal/sprd_thermal.c @@ -322,8 +322,10 @@ static void sprd_thm_toggle_sensor(struct sprd_thermal_sensor *sen, bool on) { struct thermal_zone_device *tzd = sen->tzd; - tzd->ops->set_mode(tzd, - on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED); + if (on) + thermal_zone_device_enable(tzd); + else + thermal_zone_device_disable(tzd); } static int sprd_thm_probe(struct platform_device *pdev) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index c06550930979..a2a5034f76e7 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -463,6 +463,41 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz) thermal_zone_device_init(tz); } +enum thermal_device_mode +thermal_zone_device_get_mode(struct thermal_zone_device *tz) +{ + enum thermal_device_mode mode; + + mutex_lock(&tz->lock); + + mode = tz->mode; + + mutex_unlock(&tz->lock); + + return mode; +} + +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, + enum thermal_device_mode mode) +{ + int ret = 0; + + mutex_lock(&tz->lock); + + if (tz->ops->set_mode) + ret = tz->ops->set_mode(tz, mode); + + if (!ret) + tz->mode = mode; + + mutex_unlock(&tz->lock); + + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); + + return ret; +} +EXPORT_SYMBOL_GPL(thermal_zone_device_set_mode); + void thermal_zone_device_update(struct thermal_zone_device *tz, enum thermal_notify_event event) { @@ -1236,6 +1271,7 @@ thermal_zone_device_register(const char *type, int trips, int mask, int result; int count; struct thermal_governor *governor; + enum thermal_device_mode mode; if (!type || strlen(type) == 0) { pr_err("Error: No thermal zone type defined\n"); @@ -1290,9 +1326,6 @@ thermal_zone_device_register(const char *type, int trips, int mask, if (result) goto remove_id; - /* A new thermal zone needs to be updated anyway. */ - atomic_set(&tz->need_update, 1); - dev_set_name(&tz->device, "thermal_zone%d", tz->id); result = device_register(&tz->device); if (result) @@ -1340,9 +1373,9 @@ thermal_zone_device_register(const char *type, int trips, int mask, INIT_DELAYED_WORK(&tz->poll_queue, thermal_zone_device_check); thermal_zone_device_reset(tz); - /* Update the new thermal zone and mark it as already updated. */ - if (atomic_cmpxchg(&tz->need_update, 1, 0)) - thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); + + mode = tzp ? tzp->initial_mode : THERMAL_DEVICE_ENABLED; + thermal_zone_device_set_mode(tz, mode); return tz; @@ -1473,9 +1506,7 @@ static int thermal_pm_notify(struct notifier_block *nb, case PM_POST_SUSPEND: atomic_set(&in_suspend, 0); list_for_each_entry(tz, &thermal_tz_list, node) { - tz_mode = THERMAL_DEVICE_ENABLED; - if (tz->ops->get_mode) - tz->ops->get_mode(tz, &tz_mode); + tz_mode = thermal_zone_device_get_mode(tz); if (tz_mode == THERMAL_DEVICE_DISABLED) continue; diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index c95689586e19..ff5519adb68a 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -141,6 +141,9 @@ thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev, unsigned long new_state) {} #endif /* CONFIG_THERMAL_STATISTICS */ +enum thermal_device_mode +thermal_zone_device_get_mode(struct thermal_zone_device *tz); + /* device tree support */ #ifdef CONFIG_THERMAL_OF int of_parse_thermal_zones(void); diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index aa99edb4dff7..cbb27b3c96d2 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -50,14 +50,8 @@ mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct thermal_zone_device *tz = to_thermal_zone(dev); enum thermal_device_mode mode; - int result; - - if (!tz->ops->get_mode) - return -EPERM; - result = tz->ops->get_mode(tz, &mode); - if (result) - return result; + mode = thermal_zone_device_get_mode(tz); return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled" : "disabled"); @@ -74,9 +68,9 @@ mode_store(struct device *dev, struct device_attribute *attr, return -EPERM; if (!strncmp(buf, "enabled", sizeof("enabled") - 1)) - result = tz->ops->set_mode(tz, THERMAL_DEVICE_ENABLED); + result = thermal_zone_device_enable(tz); else if (!strncmp(buf, "disabled", sizeof("disabled") - 1)) - result = tz->ops->set_mode(tz, THERMAL_DEVICE_DISABLED); + result = thermal_zone_device_disable(tz); else result = -EINVAL; @@ -428,30 +422,13 @@ static struct attribute_group thermal_zone_attribute_group = { .attrs = thermal_zone_dev_attrs, }; -/* We expose mode only if .get_mode is present */ static struct attribute *thermal_zone_mode_attrs[] = { &dev_attr_mode.attr, NULL, }; -static umode_t thermal_zone_mode_is_visible(struct kobject *kobj, - struct attribute *attr, - int attrno) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct thermal_zone_device *tz; - - tz = container_of(dev, struct thermal_zone_device, device); - - if (tz->ops->get_mode) - return attr->mode; - - return 0; -} - static struct attribute_group thermal_zone_mode_attribute_group = { .attrs = thermal_zone_mode_attrs, - .is_visible = thermal_zone_mode_is_visible, }; /* We expose passive only if passive trips are present */ diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 216185bb3014..c789d4ff6e63 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -76,8 +76,6 @@ struct thermal_zone_device_ops { struct thermal_cooling_device *); int (*get_temp) (struct thermal_zone_device *, int *); int (*set_trips) (struct thermal_zone_device *, int, int); - int (*get_mode) (struct thermal_zone_device *, - enum thermal_device_mode *); int (*set_mode) (struct thermal_zone_device *, enum thermal_device_mode); int (*get_trip_type) (struct thermal_zone_device *, int, @@ -128,6 +126,7 @@ struct thermal_cooling_device { * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature * @trip_type_attrs: attributes for trip points for sysfs: trip type * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis + * @mode: current mode of this thermal zone * @devdata: private pointer for device private data * @trips: number of trip points the thermal zone supports * @trips_disabled; bitmap for disabled trips @@ -170,6 +169,7 @@ struct thermal_zone_device { struct thermal_attr *trip_temp_attrs; struct thermal_attr *trip_type_attrs; struct thermal_attr *trip_hyst_attrs; + enum thermal_device_mode mode; void *devdata; int trips; unsigned long trips_disabled; /* bitmap for disabled trips */ @@ -264,6 +264,9 @@ struct thermal_zone_params { int num_tbps; /* Number of tbp entries */ struct thermal_bind_params *tbp; + /* Initial mode of this thermal zone device */ + enum thermal_device_mode initial_mode; + /* * Sustainable power (heat) that this thermal zone can dissipate in * mW @@ -395,6 +398,8 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, unsigned int); int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, struct thermal_cooling_device *); +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, + enum thermal_device_mode mode); void thermal_zone_device_update(struct thermal_zone_device *, enum thermal_notify_event); @@ -426,6 +431,9 @@ static inline struct thermal_zone_device *thermal_zone_device_register( static inline void thermal_zone_device_unregister( struct thermal_zone_device *tz) { } +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, + enum thermal_device_mode mode) +{ return -EINVAL; } static inline struct thermal_cooling_device * thermal_cooling_device_register(char *type, void *devdata, const struct thermal_cooling_device_ops *ops) @@ -465,4 +473,14 @@ static inline void thermal_notify_framework(struct thermal_zone_device *tz, { } #endif /* CONFIG_THERMAL */ +static inline int thermal_zone_device_enable(struct thermal_zone_device *tz) +{ + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED); +} + +static inline int thermal_zone_device_disable(struct thermal_zone_device *tz) +{ + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED); +} + #endif /* __THERMAL_H__ */ From patchwork Thu Apr 23 16:57:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 11506069 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EC2DF15AB for ; Thu, 23 Apr 2020 16:58:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE1B52075A for ; Thu, 23 Apr 2020 16:58:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="irGRtb4D" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE1B52075A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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=TyBlEYymgYWCP6Yx34sPnGtY6oydo4l1s1NaBYsG1mc=; b=irGRtb4D1sZKmw9QmC6QJsH9Fs nInz23yJ7o3gKRFVm2BUREtBineP0SM8iWofAL7Io7dsKHPZ+bMU6tiiv15olZYpGUQuQzq/C+8Cf Fe1YnjzJg6sDUWHOMP5V7qrGgrTAE8aVtoreyQLPWtxajIlXfc7MtxKm+KWjvVt/FjuMvSSQ/56PR Ju1dA/gTv/HKVBqJS0xFutpCRK3/dwtxIEedv0OSCSbhANKaPYEKjkUP0I69alHhP6/WbzUd0c4mk tYMNt6bhmg5aP01BgACJDiZSv+uDGR3rSN+MlUFnFYeZ2xeYhn9tpC1yol1X4n/LkNlkRiaT2DNn5 /4n0Ta1w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRfAm-0005go-1J; Thu, 23 Apr 2020 16:58:00 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRfAA-0005Dd-C6 for linux-arm-kernel@lists.infradead.org; Thu, 23 Apr 2020 16:57:23 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id 75D292A2810 From: Andrzej Pietrasiewicz To: linux-pm@vger.kernel.org Subject: [PATCH v3 2/2] thermal: core: Stop polling DISABLED thermal devices Date: Thu, 23 Apr 2020 18:57:05 +0200 Message-Id: <20200423165705.13585-3-andrzej.p@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200423165705.13585-1-andrzej.p@collabora.com> References: <20200423165705.13585-1-andrzej.p@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200423_095722_559142_DAD93AE3 X-CRM114-Status: GOOD ( 10.69 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [46.235.227.227 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 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: Heiko Stuebner , "Rafael J . Wysocki" , platform-driver-x86@vger.kernel.org, kernel@collabora.com, Fabio Estevam , Amit Kucheria , Chunyan Zhang , Daniel Lezcano , linux-acpi@vger.kernel.org, NXP Linux Team , Orson Zhai , Zhang Rui , Len Brown , Barlomiej Zolnierkiewicz , Sascha Hauer , Ido Schimmel , Jiri Pirko , Darren Hart , linux-arm-kernel@lists.infradead.org, Support Opensource , netdev@vger.kernel.org, Peter Kaestle , Andrzej Pietrasiewicz , Pengutronix Kernel Team , Baolin Wang , Shawn Guo , "David S . Miller" , Andy Shevchenko MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Polling DISABLED devices is not desired, as all such "disabled" devices are meant to be handled by userspace. This patch introduces and uses should_stop_polling() to decide whether the device should be polled or not. Signed-off-by: Andrzej Pietrasiewicz --- drivers/thermal/thermal_core.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index a2a5034f76e7..03c4d8d23284 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -305,13 +305,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, cancel_delayed_work(&tz->poll_queue); } +static inline bool should_stop_polling(struct thermal_zone_device *tz) +{ + return thermal_zone_device_get_mode(tz) == THERMAL_DEVICE_DISABLED; +} + static void monitor_thermal_zone(struct thermal_zone_device *tz) { + bool stop; + + stop = should_stop_polling(tz); + mutex_lock(&tz->lock); - if (tz->passive) + if (!stop && tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay); - else if (tz->polling_delay) + else if (!stop && tz->polling_delay) thermal_zone_device_set_polling(tz, tz->polling_delay); else thermal_zone_device_set_polling(tz, 0); @@ -503,6 +512,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, { int count; + if (should_stop_polling(tz)) + return; + if (atomic_read(&in_suspend)) return;