From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33D53C38A2D for ; Fri, 17 Apr 2020 20:45:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F187420656 for ; Fri, 17 Apr 2020 20:45:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZPCuu7Qk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726105AbgDQUpD (ORCPT ); Fri, 17 Apr 2020 16:45:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726079AbgDQUpC (ORCPT ); Fri, 17 Apr 2020 16:45:02 -0400 Received: from mail-io1-xd44.google.com (mail-io1-xd44.google.com [IPv6:2607:f8b0:4864:20::d44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1DCE8C061A0C; Fri, 17 Apr 2020 13:45:01 -0700 (PDT) Received: by mail-io1-xd44.google.com with SMTP id f19so3817001iog.5; Fri, 17 Apr 2020 13:45:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=NvjiP3zCAk8lgCOCvjbh99puSm08US/6dzekla0UOMI=; b=ZPCuu7Qk1j1MnAFiUIR0AQT2NsoF+V1a5JznRAZgpsGiM5CvVZUPGzawS8ElRxDubO zW4h1yWxZLrmqJ0EpnvGn9btqt826YKLz6kGsqLUJ+sGo7NhVO29B1LxTQUV1rQN8T6e yEkynIbBs98ftlrem2/Y4auUtY3R43Yj/VC0B/JOFHWqQNYjloCChb2+e1KCsDM+bplr zdjM26LuoNaxT5zX4mEwfOnI/FUzkzZxtKBD7x6N6gqRM17iXPUI2nv8dhpq8M5qzObj X9SyNUuLpLL83wiBpC2gQ+17W2MB14yeioNWsZlMfENaFtDiTACxHFctWEn2inw/OYPG vyMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=NvjiP3zCAk8lgCOCvjbh99puSm08US/6dzekla0UOMI=; b=APj8n1GWr66u9OOxUy6CCdD5Me8z9L5SeLzac+aO++MGrsl4F2y7r2lje3p4GoWe7t hQKdEb0kMblJs2aiYhAGXLh/fgmnoP05T7rCbRlI4Unort9xiSpZ3nG0K6cJHjBypVUD iRxJbXXqEL5UwDN8Au5YnOhWcaB9b9yOghebG1c8FPRo1xWQ+EG6SKNYEPVhAAkFkBSm S3P5uf/fSqIAQvO++luLsmrtK2iTorMSBsZ8/R+wK+/gzHMvdA8OcSfFnhevvd1TbQLI RnkvGNqm+HL1x4KuORp6IbEGgx8WkUawji0OCO156APyEXL19iVP6RLs7mas7WH8guCY UwgA== X-Gm-Message-State: AGi0Pual7cUAzH1NRkb7ODVYJ3l1BotPJzVzW6M1SN1zUSj84yj6r8fi X+vduky01S19eZ7nu7Rv6WXEvZYgkRBohV7UcfM= X-Google-Smtp-Source: APiQypJShGf908fM77lDllBwknCqq09xKvR9/9sBKSa4ZPOK3n5eSeRMgOFWzsk0c5Kd3V2ZYlHm5t/N7kDFnAv4dis= X-Received: by 2002:a02:c998:: with SMTP id b24mr5120079jap.23.1587156299843; Fri, 17 Apr 2020 13:44:59 -0700 (PDT) MIME-Version: 1.0 References: <9ac3b37a-8746-b8ee-70e1-9c876830ac83@linaro.org> <20200417162020.19980-1-andrzej.p@collabora.com> <20200417162020.19980-2-andrzej.p@collabora.com> In-Reply-To: <20200417162020.19980-2-andrzej.p@collabora.com> From: Andy Shevchenko Date: Fri, 17 Apr 2020 23:44:47 +0300 Message-ID: Subject: Re: [RFC v3 1/2] thermal: core: Let thermal zone device's mode be stored in its struct To: Andrzej Pietrasiewicz Cc: Linux PM , Zhang Rui , "Rafael J . Wysocki" , Len Brown , Jiri Pirko , Ido Schimmel , "David S . Miller" , Peter Kaestle , Darren Hart , Andy Shevchenko , Support Opensource , Daniel Lezcano , Amit Kucheria , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Allison Randal , Enrico Weigelt , Gayatri Kammela , Thomas Gleixner , ACPI Devel Maling List , netdev , Platform Driver , linux-arm Mailing List , kernel@collabora.com, Barlomiej Zolnierkiewicz Content-Type: text/plain; charset="UTF-8" Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Fri, Apr 17, 2020 at 7:20 PM Andrzej Pietrasiewicz wrote: > > 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 specific 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. > > The scope of the above 4 functions is purposedly limited to the thermal > framework and drivers are not supposed to call them. This encapsulation > does not fully work at the moment for some drivers, though: > > - platform/x86/acerhdf.c Acked-by: Andy Shevchenko for PDx86 bits. > - drivers/thermal/imx_thermal.c > - drivers/thermal/intel/intel_quark_dts_thermal.c > - drivers/thermal/of-thermal.c > > and they manipulate struct thermal_zone_device's members directly. > > struct thermal_zone_params gains a new member called initial_mode, which > is used to set tzd's mode at registration time. > > 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 > --- > drivers/acpi/thermal.c | 46 +++++---------- > .../ethernet/mellanox/mlxsw/core_thermal.c | 57 ++++--------------- > drivers/platform/x86/acerhdf.c | 17 +----- > drivers/thermal/da9062-thermal.c | 16 ++---- > drivers/thermal/imx_thermal.c | 29 +++------- > .../intel/int340x_thermal/int3400_thermal.c | 30 ++-------- > .../thermal/intel/intel_quark_dts_thermal.c | 22 ++----- > drivers/thermal/of-thermal.c | 30 +++------- > drivers/thermal/thermal_core.c | 44 +++++++++++++- > drivers/thermal/thermal_core.h | 16 ++++++ > drivers/thermal/thermal_sysfs.c | 29 +--------- > include/linux/thermal.h | 7 ++- > 12 files changed, 125 insertions(+), 218 deletions(-) > > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c > index 19067a5e5293..67bc263332a5 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, > @@ -526,46 +525,29 @@ 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; > > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > /* > * 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 +838,6 @@ 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, > @@ -870,6 +851,9 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > int trips = 0; > int result; > acpi_status status; > + struct thermal_zone_params prms = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > int i; > > if (tz->trips.critical.flags.valid) > @@ -887,13 +871,13 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > if (tz->trips.passive.flags.valid) > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > tz->trips.passive.tsp*100, > tz->polling_frequency*100); > else > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > 0, tz->polling_frequency*100); > if (IS_ERR(tz->thermal_zone)) > return -ENODEV; > @@ -913,8 +897,6 @@ 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..50518048b86d 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, > @@ -749,6 +710,9 @@ static const struct thermal_cooling_device_ops mlxsw_cooling_ops = { > static int > mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > int err; > > @@ -759,13 +723,12 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > MLXSW_THERMAL_TRIP_MASK, > module_tz, > &mlxsw_thermal_module_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(module_tz->tzdev)) { > err = PTR_ERR(module_tz->tzdev); > return err; > } > > - module_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -868,6 +831,9 @@ mlxsw_thermal_modules_fini(struct mlxsw_thermal *thermal) > static int > mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > > snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d", > @@ -877,11 +843,10 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > MLXSW_THERMAL_TRIP_MASK, > gearbox_tz, > &mlxsw_thermal_gearbox_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(gearbox_tz->tzdev)) > return PTR_ERR(gearbox_tz->tzdev); > > - gearbox_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -960,6 +925,9 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > const struct mlxsw_bus_info *bus_info, > struct mlxsw_thermal **p_thermal) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char mfcr_pl[MLXSW_REG_MFCR_LEN] = { 0 }; > enum mlxsw_reg_mfcr_pwm_frequency freq; > struct device *dev = bus_info->dev; > @@ -1034,7 +1002,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > MLXSW_THERMAL_TRIP_MASK, > thermal, > &mlxsw_thermal_ops, > - NULL, 0, > + &tzp, 0, > thermal->polling_delay); > if (IS_ERR(thermal->tzdev)) { > err = PTR_ERR(thermal->tzdev); > @@ -1050,7 +1018,6 @@ 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..4bdb6f9621c1 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, > }; > @@ -199,6 +189,9 @@ MODULE_DEVICE_TABLE(of, da9062_compatible_reg_id_table); > > static int da9062_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct da9062 *chip = dev_get_drvdata(pdev->dev.parent); > struct da9062_thermal *thermal; > unsigned int pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD; > @@ -233,7 +226,6 @@ 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); > @@ -241,7 +233,7 @@ static int da9062_thermal_probe(struct platform_device *pdev) > > thermal->zone = thermal_zone_device_register(thermal->config->name, > 1, 0, thermal, > - &da9062_thermal_ops, NULL, pp_tmp, > + &da9062_thermal_ops, &tzp, pp_tmp, > 0); > if (IS_ERR(thermal->zone)) { > dev_err(&pdev->dev, "Cannot register thermal zone device\n"); > diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c > index e761c9b42217..3e02323c938b 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, > @@ -691,6 +676,9 @@ static inline void imx_thermal_unregister_legacy_cooling(struct imx_thermal_data > > static int imx_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct imx_thermal_data *data; > struct regmap *map; > int measure_freq; > @@ -799,7 +787,7 @@ static int imx_thermal_probe(struct platform_device *pdev) > data->tz = thermal_zone_device_register("imx_thermal_zone", > IMX_TRIP_NUM, > BIT(IMX_TRIP_PASSIVE), data, > - &imx_tz_ops, NULL, > + &imx_tz_ops, &tzp, > IMX_PASSIVE_DELAY, > IMX_POLLING_DELAY); > if (IS_ERR(data->tz)) { > @@ -831,7 +819,6 @@ 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, > @@ -885,7 +872,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev) > data->socdata->measure_temp_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->power_down_mask); > - data->mode = THERMAL_DEVICE_DISABLED; > + data->tz->mode = THERMAL_DEVICE_DISABLED; > clk_disable_unprepare(data->thermal_clk); > > return 0; > @@ -905,7 +892,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev) > data->socdata->power_down_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->measure_temp_mask); > - data->mode = THERMAL_DEVICE_ENABLED; > + data->tz->mode = THERMAL_DEVICE_ENABLED; > > return 0; > } > diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > index e802922a13cf..86a00598ed09 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; > @@ -230,48 +229,29 @@ 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 > + if (mode != THERMAL_DEVICE_ENABLED && > + mode != THERMAL_DEVICE_DISABLED) > 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, > }; > > diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c > index d704fc104cfd..c4879b4bfbf1 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, > }; > > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c > index 874a47d6923f..863b89546f81 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, > @@ -553,8 +533,14 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, > if (id == sensor_id) { > tzd = thermal_zone_of_add_sensor(child, sensor_np, > data, ops); > - if (!IS_ERR(tzd)) > + if (!IS_ERR(tzd)) { > + mutex_lock(&tzd->lock); > tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); > + tzd->mode = THERMAL_DEVICE_ENABLED; > + mutex_unlock(&tzd->lock); > + thermal_zone_device_update(tzd, > + THERMAL_EVENT_UNSPECIFIED); > + } > > of_node_put(child); > goto exit; > @@ -979,7 +965,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) > > finish: > of_node_put(child); > - tz->mode = THERMAL_DEVICE_DISABLED; > > return tz; > > @@ -1120,6 +1105,7 @@ 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/thermal_core.c b/drivers/thermal/thermal_core.c > index c06550930979..5ff98fcc0f6a 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -463,6 +463,43 @@ 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; > + > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > + mutex_lock(&tz->lock); > + > + if (tz->ops->set_mode) > + ret = tz->ops->set_mode(tz, mode); > + > + tz->mode = mode; > + > + mutex_unlock(&tz->lock); > + > + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > + > + return ret; > +} > + > void thermal_zone_device_update(struct thermal_zone_device *tz, > enum thermal_notify_event event) > { > @@ -1344,6 +1381,9 @@ thermal_zone_device_register(const char *type, int trips, int mask, > if (atomic_cmpxchg(&tz->need_update, 1, 0)) > thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > > + if (tzp) > + thermal_zone_device_set_mode(tz, tzp->initial_mode); > + > return tz; > > unregister: > @@ -1473,9 +1513,7 @@ 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..8e561bac3133 100644 > --- a/drivers/thermal/thermal_core.h > +++ b/drivers/thermal/thermal_core.h > @@ -141,6 +141,22 @@ 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); > + > +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, > + enum thermal_device_mode mode); > + > +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); > +} > + > /* 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..da4141697e2e 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 > -- > 2.17.1 > -- With Best Regards, Andy Shevchenko From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: Re: [RFC v3 1/2] thermal: core: Let thermal zone device's mode be stored in its struct Date: Fri, 17 Apr 2020 23:44:47 +0300 Message-ID: References: <9ac3b37a-8746-b8ee-70e1-9c876830ac83@linaro.org> <20200417162020.19980-1-andrzej.p@collabora.com> <20200417162020.19980-2-andrzej.p@collabora.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20200417162020.19980-2-andrzej.p@collabora.com> Sender: netdev-owner@vger.kernel.org To: Andrzej Pietrasiewicz Cc: Linux PM , Zhang Rui , "Rafael J . Wysocki" , Len Brown , Jiri Pirko , Ido Schimmel , "David S . Miller" , Peter Kaestle , Darren Hart , Andy Shevchenko , Support Opensource , Daniel Lezcano , Amit Kucheria , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Allison Randal , Enrico Weigelt List-Id: platform-driver-x86.vger.kernel.org On Fri, Apr 17, 2020 at 7:20 PM Andrzej Pietrasiewicz wrote: > > 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 specific 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. > > The scope of the above 4 functions is purposedly limited to the thermal > framework and drivers are not supposed to call them. This encapsulation > does not fully work at the moment for some drivers, though: > > - platform/x86/acerhdf.c Acked-by: Andy Shevchenko for PDx86 bits. > - drivers/thermal/imx_thermal.c > - drivers/thermal/intel/intel_quark_dts_thermal.c > - drivers/thermal/of-thermal.c > > and they manipulate struct thermal_zone_device's members directly. > > struct thermal_zone_params gains a new member called initial_mode, which > is used to set tzd's mode at registration time. > > 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 > --- > drivers/acpi/thermal.c | 46 +++++---------- > .../ethernet/mellanox/mlxsw/core_thermal.c | 57 ++++--------------- > drivers/platform/x86/acerhdf.c | 17 +----- > drivers/thermal/da9062-thermal.c | 16 ++---- > drivers/thermal/imx_thermal.c | 29 +++------- > .../intel/int340x_thermal/int3400_thermal.c | 30 ++-------- > .../thermal/intel/intel_quark_dts_thermal.c | 22 ++----- > drivers/thermal/of-thermal.c | 30 +++------- > drivers/thermal/thermal_core.c | 44 +++++++++++++- > drivers/thermal/thermal_core.h | 16 ++++++ > drivers/thermal/thermal_sysfs.c | 29 +--------- > include/linux/thermal.h | 7 ++- > 12 files changed, 125 insertions(+), 218 deletions(-) > > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c > index 19067a5e5293..67bc263332a5 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, > @@ -526,46 +525,29 @@ 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; > > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > /* > * 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 +838,6 @@ 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, > @@ -870,6 +851,9 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > int trips = 0; > int result; > acpi_status status; > + struct thermal_zone_params prms = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > int i; > > if (tz->trips.critical.flags.valid) > @@ -887,13 +871,13 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > if (tz->trips.passive.flags.valid) > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > tz->trips.passive.tsp*100, > tz->polling_frequency*100); > else > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > 0, tz->polling_frequency*100); > if (IS_ERR(tz->thermal_zone)) > return -ENODEV; > @@ -913,8 +897,6 @@ 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..50518048b86d 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, > @@ -749,6 +710,9 @@ static const struct thermal_cooling_device_ops mlxsw_cooling_ops = { > static int > mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > int err; > > @@ -759,13 +723,12 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > MLXSW_THERMAL_TRIP_MASK, > module_tz, > &mlxsw_thermal_module_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(module_tz->tzdev)) { > err = PTR_ERR(module_tz->tzdev); > return err; > } > > - module_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -868,6 +831,9 @@ mlxsw_thermal_modules_fini(struct mlxsw_thermal *thermal) > static int > mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > > snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d", > @@ -877,11 +843,10 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > MLXSW_THERMAL_TRIP_MASK, > gearbox_tz, > &mlxsw_thermal_gearbox_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(gearbox_tz->tzdev)) > return PTR_ERR(gearbox_tz->tzdev); > > - gearbox_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -960,6 +925,9 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > const struct mlxsw_bus_info *bus_info, > struct mlxsw_thermal **p_thermal) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char mfcr_pl[MLXSW_REG_MFCR_LEN] = { 0 }; > enum mlxsw_reg_mfcr_pwm_frequency freq; > struct device *dev = bus_info->dev; > @@ -1034,7 +1002,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > MLXSW_THERMAL_TRIP_MASK, > thermal, > &mlxsw_thermal_ops, > - NULL, 0, > + &tzp, 0, > thermal->polling_delay); > if (IS_ERR(thermal->tzdev)) { > err = PTR_ERR(thermal->tzdev); > @@ -1050,7 +1018,6 @@ 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..4bdb6f9621c1 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, > }; > @@ -199,6 +189,9 @@ MODULE_DEVICE_TABLE(of, da9062_compatible_reg_id_table); > > static int da9062_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct da9062 *chip = dev_get_drvdata(pdev->dev.parent); > struct da9062_thermal *thermal; > unsigned int pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD; > @@ -233,7 +226,6 @@ 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); > @@ -241,7 +233,7 @@ static int da9062_thermal_probe(struct platform_device *pdev) > > thermal->zone = thermal_zone_device_register(thermal->config->name, > 1, 0, thermal, > - &da9062_thermal_ops, NULL, pp_tmp, > + &da9062_thermal_ops, &tzp, pp_tmp, > 0); > if (IS_ERR(thermal->zone)) { > dev_err(&pdev->dev, "Cannot register thermal zone device\n"); > diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c > index e761c9b42217..3e02323c938b 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, > @@ -691,6 +676,9 @@ static inline void imx_thermal_unregister_legacy_cooling(struct imx_thermal_data > > static int imx_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct imx_thermal_data *data; > struct regmap *map; > int measure_freq; > @@ -799,7 +787,7 @@ static int imx_thermal_probe(struct platform_device *pdev) > data->tz = thermal_zone_device_register("imx_thermal_zone", > IMX_TRIP_NUM, > BIT(IMX_TRIP_PASSIVE), data, > - &imx_tz_ops, NULL, > + &imx_tz_ops, &tzp, > IMX_PASSIVE_DELAY, > IMX_POLLING_DELAY); > if (IS_ERR(data->tz)) { > @@ -831,7 +819,6 @@ 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, > @@ -885,7 +872,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev) > data->socdata->measure_temp_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->power_down_mask); > - data->mode = THERMAL_DEVICE_DISABLED; > + data->tz->mode = THERMAL_DEVICE_DISABLED; > clk_disable_unprepare(data->thermal_clk); > > return 0; > @@ -905,7 +892,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev) > data->socdata->power_down_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->measure_temp_mask); > - data->mode = THERMAL_DEVICE_ENABLED; > + data->tz->mode = THERMAL_DEVICE_ENABLED; > > return 0; > } > diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > index e802922a13cf..86a00598ed09 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; > @@ -230,48 +229,29 @@ 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 > + if (mode != THERMAL_DEVICE_ENABLED && > + mode != THERMAL_DEVICE_DISABLED) > 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, > }; > > diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c > index d704fc104cfd..c4879b4bfbf1 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, > }; > > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c > index 874a47d6923f..863b89546f81 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, > @@ -553,8 +533,14 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, > if (id == sensor_id) { > tzd = thermal_zone_of_add_sensor(child, sensor_np, > data, ops); > - if (!IS_ERR(tzd)) > + if (!IS_ERR(tzd)) { > + mutex_lock(&tzd->lock); > tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); > + tzd->mode = THERMAL_DEVICE_ENABLED; > + mutex_unlock(&tzd->lock); > + thermal_zone_device_update(tzd, > + THERMAL_EVENT_UNSPECIFIED); > + } > > of_node_put(child); > goto exit; > @@ -979,7 +965,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) > > finish: > of_node_put(child); > - tz->mode = THERMAL_DEVICE_DISABLED; > > return tz; > > @@ -1120,6 +1105,7 @@ 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/thermal_core.c b/drivers/thermal/thermal_core.c > index c06550930979..5ff98fcc0f6a 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -463,6 +463,43 @@ 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; > + > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > + mutex_lock(&tz->lock); > + > + if (tz->ops->set_mode) > + ret = tz->ops->set_mode(tz, mode); > + > + tz->mode = mode; > + > + mutex_unlock(&tz->lock); > + > + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > + > + return ret; > +} > + > void thermal_zone_device_update(struct thermal_zone_device *tz, > enum thermal_notify_event event) > { > @@ -1344,6 +1381,9 @@ thermal_zone_device_register(const char *type, int trips, int mask, > if (atomic_cmpxchg(&tz->need_update, 1, 0)) > thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > > + if (tzp) > + thermal_zone_device_set_mode(tz, tzp->initial_mode); > + > return tz; > > unregister: > @@ -1473,9 +1513,7 @@ 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..8e561bac3133 100644 > --- a/drivers/thermal/thermal_core.h > +++ b/drivers/thermal/thermal_core.h > @@ -141,6 +141,22 @@ 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); > + > +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, > + enum thermal_device_mode mode); > + > +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); > +} > + > /* 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..da4141697e2e 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 > -- > 2.17.1 > -- With Best Regards, Andy Shevchenko From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 988D6C2BB1D for ; 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Fri, 17 Apr 2020 13:44:59 -0700 (PDT) MIME-Version: 1.0 References: <9ac3b37a-8746-b8ee-70e1-9c876830ac83@linaro.org> <20200417162020.19980-1-andrzej.p@collabora.com> <20200417162020.19980-2-andrzej.p@collabora.com> In-Reply-To: <20200417162020.19980-2-andrzej.p@collabora.com> From: Andy Shevchenko Date: Fri, 17 Apr 2020 23:44:47 +0300 Message-ID: Subject: Re: [RFC v3 1/2] thermal: core: Let thermal zone device's mode be stored in its struct To: Andrzej Pietrasiewicz X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200417_134502_993329_41954A1D X-CRM114-Status: GOOD ( 26.53 ) 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: "Rafael J . Wysocki" , Platform Driver , kernel@collabora.com, Fabio Estevam , Amit Kucheria , Daniel Lezcano , ACPI Devel Maling List , NXP Linux Team , Darren Hart , Zhang Rui , Gayatri Kammela , Len Brown , Linux PM , Sascha Hauer , Ido Schimmel , Jiri Pirko , Thomas Gleixner , Allison Randal , linux-arm Mailing List , Support Opensource , Shawn Guo , Peter Kaestle , Barlomiej Zolnierkiewicz , Pengutronix Kernel Team , netdev , Enrico Weigelt , "David S . Miller" , Andy Shevchenko Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Apr 17, 2020 at 7:20 PM Andrzej Pietrasiewicz wrote: > > 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 specific 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. > > The scope of the above 4 functions is purposedly limited to the thermal > framework and drivers are not supposed to call them. This encapsulation > does not fully work at the moment for some drivers, though: > > - platform/x86/acerhdf.c Acked-by: Andy Shevchenko for PDx86 bits. > - drivers/thermal/imx_thermal.c > - drivers/thermal/intel/intel_quark_dts_thermal.c > - drivers/thermal/of-thermal.c > > and they manipulate struct thermal_zone_device's members directly. > > struct thermal_zone_params gains a new member called initial_mode, which > is used to set tzd's mode at registration time. > > 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 > --- > drivers/acpi/thermal.c | 46 +++++---------- > .../ethernet/mellanox/mlxsw/core_thermal.c | 57 ++++--------------- > drivers/platform/x86/acerhdf.c | 17 +----- > drivers/thermal/da9062-thermal.c | 16 ++---- > drivers/thermal/imx_thermal.c | 29 +++------- > .../intel/int340x_thermal/int3400_thermal.c | 30 ++-------- > .../thermal/intel/intel_quark_dts_thermal.c | 22 ++----- > drivers/thermal/of-thermal.c | 30 +++------- > drivers/thermal/thermal_core.c | 44 +++++++++++++- > drivers/thermal/thermal_core.h | 16 ++++++ > drivers/thermal/thermal_sysfs.c | 29 +--------- > include/linux/thermal.h | 7 ++- > 12 files changed, 125 insertions(+), 218 deletions(-) > > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c > index 19067a5e5293..67bc263332a5 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, > @@ -526,46 +525,29 @@ 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; > > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > /* > * 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 +838,6 @@ 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, > @@ -870,6 +851,9 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > int trips = 0; > int result; > acpi_status status; > + struct thermal_zone_params prms = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > int i; > > if (tz->trips.critical.flags.valid) > @@ -887,13 +871,13 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > if (tz->trips.passive.flags.valid) > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > tz->trips.passive.tsp*100, > tz->polling_frequency*100); > else > tz->thermal_zone = > thermal_zone_device_register("acpitz", trips, 0, tz, > - &acpi_thermal_zone_ops, NULL, > + &acpi_thermal_zone_ops, &prms, > 0, tz->polling_frequency*100); > if (IS_ERR(tz->thermal_zone)) > return -ENODEV; > @@ -913,8 +897,6 @@ 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..50518048b86d 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, > @@ -749,6 +710,9 @@ static const struct thermal_cooling_device_ops mlxsw_cooling_ops = { > static int > mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > int err; > > @@ -759,13 +723,12 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz) > MLXSW_THERMAL_TRIP_MASK, > module_tz, > &mlxsw_thermal_module_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(module_tz->tzdev)) { > err = PTR_ERR(module_tz->tzdev); > return err; > } > > - module_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -868,6 +831,9 @@ mlxsw_thermal_modules_fini(struct mlxsw_thermal *thermal) > static int > mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME]; > > snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d", > @@ -877,11 +843,10 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz) > MLXSW_THERMAL_TRIP_MASK, > gearbox_tz, > &mlxsw_thermal_gearbox_ops, > - NULL, 0, 0); > + &tzp, 0, 0); > if (IS_ERR(gearbox_tz->tzdev)) > return PTR_ERR(gearbox_tz->tzdev); > > - gearbox_tz->mode = THERMAL_DEVICE_ENABLED; > return 0; > } > > @@ -960,6 +925,9 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > const struct mlxsw_bus_info *bus_info, > struct mlxsw_thermal **p_thermal) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > char mfcr_pl[MLXSW_REG_MFCR_LEN] = { 0 }; > enum mlxsw_reg_mfcr_pwm_frequency freq; > struct device *dev = bus_info->dev; > @@ -1034,7 +1002,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core, > MLXSW_THERMAL_TRIP_MASK, > thermal, > &mlxsw_thermal_ops, > - NULL, 0, > + &tzp, 0, > thermal->polling_delay); > if (IS_ERR(thermal->tzdev)) { > err = PTR_ERR(thermal->tzdev); > @@ -1050,7 +1018,6 @@ 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..4bdb6f9621c1 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, > }; > @@ -199,6 +189,9 @@ MODULE_DEVICE_TABLE(of, da9062_compatible_reg_id_table); > > static int da9062_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct da9062 *chip = dev_get_drvdata(pdev->dev.parent); > struct da9062_thermal *thermal; > unsigned int pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD; > @@ -233,7 +226,6 @@ 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); > @@ -241,7 +233,7 @@ static int da9062_thermal_probe(struct platform_device *pdev) > > thermal->zone = thermal_zone_device_register(thermal->config->name, > 1, 0, thermal, > - &da9062_thermal_ops, NULL, pp_tmp, > + &da9062_thermal_ops, &tzp, pp_tmp, > 0); > if (IS_ERR(thermal->zone)) { > dev_err(&pdev->dev, "Cannot register thermal zone device\n"); > diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c > index e761c9b42217..3e02323c938b 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, > @@ -691,6 +676,9 @@ static inline void imx_thermal_unregister_legacy_cooling(struct imx_thermal_data > > static int imx_thermal_probe(struct platform_device *pdev) > { > + struct thermal_zone_params tzp = { > + .initial_mode = THERMAL_DEVICE_ENABLED, > + }; > struct imx_thermal_data *data; > struct regmap *map; > int measure_freq; > @@ -799,7 +787,7 @@ static int imx_thermal_probe(struct platform_device *pdev) > data->tz = thermal_zone_device_register("imx_thermal_zone", > IMX_TRIP_NUM, > BIT(IMX_TRIP_PASSIVE), data, > - &imx_tz_ops, NULL, > + &imx_tz_ops, &tzp, > IMX_PASSIVE_DELAY, > IMX_POLLING_DELAY); > if (IS_ERR(data->tz)) { > @@ -831,7 +819,6 @@ 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, > @@ -885,7 +872,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev) > data->socdata->measure_temp_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->power_down_mask); > - data->mode = THERMAL_DEVICE_DISABLED; > + data->tz->mode = THERMAL_DEVICE_DISABLED; > clk_disable_unprepare(data->thermal_clk); > > return 0; > @@ -905,7 +892,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev) > data->socdata->power_down_mask); > regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > data->socdata->measure_temp_mask); > - data->mode = THERMAL_DEVICE_ENABLED; > + data->tz->mode = THERMAL_DEVICE_ENABLED; > > return 0; > } > diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > index e802922a13cf..86a00598ed09 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; > @@ -230,48 +229,29 @@ 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 > + if (mode != THERMAL_DEVICE_ENABLED && > + mode != THERMAL_DEVICE_DISABLED) > 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, > }; > > diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c > index d704fc104cfd..c4879b4bfbf1 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, > }; > > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c > index 874a47d6923f..863b89546f81 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, > @@ -553,8 +533,14 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, > if (id == sensor_id) { > tzd = thermal_zone_of_add_sensor(child, sensor_np, > data, ops); > - if (!IS_ERR(tzd)) > + if (!IS_ERR(tzd)) { > + mutex_lock(&tzd->lock); > tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); > + tzd->mode = THERMAL_DEVICE_ENABLED; > + mutex_unlock(&tzd->lock); > + thermal_zone_device_update(tzd, > + THERMAL_EVENT_UNSPECIFIED); > + } > > of_node_put(child); > goto exit; > @@ -979,7 +965,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) > > finish: > of_node_put(child); > - tz->mode = THERMAL_DEVICE_DISABLED; > > return tz; > > @@ -1120,6 +1105,7 @@ 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/thermal_core.c b/drivers/thermal/thermal_core.c > index c06550930979..5ff98fcc0f6a 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -463,6 +463,43 @@ 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; > + > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > + mutex_lock(&tz->lock); > + > + if (tz->ops->set_mode) > + ret = tz->ops->set_mode(tz, mode); > + > + tz->mode = mode; > + > + mutex_unlock(&tz->lock); > + > + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > + > + return ret; > +} > + > void thermal_zone_device_update(struct thermal_zone_device *tz, > enum thermal_notify_event event) > { > @@ -1344,6 +1381,9 @@ thermal_zone_device_register(const char *type, int trips, int mask, > if (atomic_cmpxchg(&tz->need_update, 1, 0)) > thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); > > + if (tzp) > + thermal_zone_device_set_mode(tz, tzp->initial_mode); > + > return tz; > > unregister: > @@ -1473,9 +1513,7 @@ 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..8e561bac3133 100644 > --- a/drivers/thermal/thermal_core.h > +++ b/drivers/thermal/thermal_core.h > @@ -141,6 +141,22 @@ 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); > + > +int thermal_zone_device_set_mode(struct thermal_zone_device *tz, > + enum thermal_device_mode mode); > + > +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); > +} > + > /* 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..da4141697e2e 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 > -- > 2.17.1 > -- With Best Regards, Andy Shevchenko _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel