[RESEND,1/2] thermal: core: Let thermal zone device's mode be stored in its struct

Message ID 20200422161235.5243-1-andrzej.p@collabora.com
State New
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Series
  • [RESEND,1/2] thermal: core: Let thermal zone device's mode be stored in its struct
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Commit Message

Andrzej Pietrasiewicz April 22, 2020, 4:12 p.m.
Thermal zone devices' mode is stored in individual drivers. This patch
changes it so that mode is stored in struct thermal_zone_device instead.

As a result all driver-specific variables storing the mode are not needed
and are removed. Consequently, the get_mode() implementations have nothing
to operate on and need to be removed, too.

Some thermal framework functions are introduced:

thermal_zone_device_get_mode()
thermal_zone_device_set_mode()
thermal_zone_device_enable()
thermal_zone_device_disable()

thermal_zone_device_get_mode() and its "set" counterpart take tzd's lock
and the "set" calls driver's set_mode() if provided, so the latter must
not take this lock again. At the end of the "set"
thermal_zone_device_update() is called so drivers don't need to repeat this
invocation in their specific set_mode() implementations.

struct thermal_zone_params gains a new member called initial_mode, which
is used to set tzd's mode at registration time and if tzp is not provided
to thermal_zone_device_register() then it is assumed that the initial
mode is THERMAL_DEVICE_ENABLED.

The sysfs "mode" attribute is always exposed from now on, because all
thermal zone devices now have their get_mode() implemented at the generic
level and it is always available. Exposing "mode" doesn't hurt the drivers
which don't provide their own set_mode(), because writing to "mode" will
result in -EPERM, as expected.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
---

Fixed two typos:

- one found by kbuild test robot <lkp@intel.com> (missing semicolon
in dummy implementation of thermal_zone_device_set_mode()

- one found by myself (.initial_mode in int3400_thermal_params set to
a nonexistent THERMAL_ZONE_DISABLED - should be THERMAL_DEVICE_DISABLED)

 drivers/acpi/thermal.c                        | 35 ++-----------
 .../ethernet/mellanox/mlxsw/core_thermal.c    | 42 ----------------
 drivers/platform/x86/acerhdf.c                | 17 ++-----
 drivers/thermal/da9062-thermal.c              | 11 -----
 drivers/thermal/hisi_thermal.c                |  6 ++-
 drivers/thermal/imx_thermal.c                 | 24 ++-------
 .../intel/int340x_thermal/int3400_thermal.c   | 31 ++----------
 .../int340x_thermal/int340x_thermal_zone.c    |  1 +
 .../thermal/intel/intel_quark_dts_thermal.c   | 22 +++------
 drivers/thermal/intel/x86_pkg_temp_thermal.c  |  1 +
 drivers/thermal/of-thermal.c                  | 24 +--------
 drivers/thermal/rockchip_thermal.c            |  6 ++-
 drivers/thermal/sprd_thermal.c                |  6 ++-
 drivers/thermal/thermal_core.c                | 49 ++++++++++++++++---
 drivers/thermal/thermal_core.h                |  3 ++
 drivers/thermal/thermal_sysfs.c               | 29 ++---------
 include/linux/thermal.h                       | 22 ++++++++-
 17 files changed, 107 insertions(+), 222 deletions(-)

Patch

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 19067a5e5293..d1f352ed5241 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -172,7 +172,6 @@  struct acpi_thermal {
 	struct acpi_thermal_trips trips;
 	struct acpi_handle_list devices;
 	struct thermal_zone_device *thermal_zone;
-	int tz_enabled;
 	int kelvin_offset;	/* in millidegrees */
 	struct work_struct thermal_check_work;
 };
@@ -500,7 +499,7 @@  static void acpi_thermal_check(void *data)
 {
 	struct acpi_thermal *tz = data;
 
-	if (!tz->tz_enabled)
+	if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
 		return;
 
 	thermal_zone_device_update(tz->thermal_zone,
@@ -526,25 +525,10 @@  static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
 	return 0;
 }
 
-static int thermal_get_mode(struct thermal_zone_device *thermal,
-				enum thermal_device_mode *mode)
-{
-	struct acpi_thermal *tz = thermal->devdata;
-
-	if (!tz)
-		return -EINVAL;
-
-	*mode = tz->tz_enabled ? THERMAL_DEVICE_ENABLED :
-		THERMAL_DEVICE_DISABLED;
-
-	return 0;
-}
-
 static int thermal_set_mode(struct thermal_zone_device *thermal,
 				enum thermal_device_mode mode)
 {
 	struct acpi_thermal *tz = thermal->devdata;
-	int enable;
 
 	if (!tz)
 		return -EINVAL;
@@ -552,20 +536,14 @@  static int thermal_set_mode(struct thermal_zone_device *thermal,
 	/*
 	 * enable/disable thermal management from ACPI thermal driver
 	 */
-	if (mode == THERMAL_DEVICE_ENABLED)
-		enable = 1;
-	else if (mode == THERMAL_DEVICE_DISABLED) {
-		enable = 0;
+	if (mode == THERMAL_DEVICE_DISABLED)
 		pr_warn("thermal zone will be disabled\n");
-	} else
-		return -EINVAL;
 
-	if (enable != tz->tz_enabled) {
-		tz->tz_enabled = enable;
+	if (mode != thermal->mode) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			"%s kernel ACPI thermal control\n",
-			tz->tz_enabled ? "Enable" : "Disable"));
-		acpi_thermal_check(tz);
+			mode == THERMAL_DEVICE_ENABLED ?
+			"Enable" : "Disable"));
 	}
 	return 0;
 }
@@ -856,7 +834,6 @@  static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
 	.bind = acpi_thermal_bind_cooling_device,
 	.unbind	= acpi_thermal_unbind_cooling_device,
 	.get_temp = thermal_get_temp,
-	.get_mode = thermal_get_mode,
 	.set_mode = thermal_set_mode,
 	.get_trip_type = thermal_get_trip_type,
 	.get_trip_temp = thermal_get_trip_temp,
@@ -913,8 +890,6 @@  static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-	tz->tz_enabled = 1;
-
 	dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
 		 tz->thermal_zone->id);
 	return 0;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index ce0a6837daa3..5d28384046da 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -98,7 +98,6 @@  struct mlxsw_thermal_module {
 	struct mlxsw_thermal *parent;
 	struct thermal_zone_device *tzdev;
 	struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
-	enum thermal_device_mode mode;
 	int module; /* Module or gearbox number */
 };
 
@@ -110,7 +109,6 @@  struct mlxsw_thermal {
 	struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
 	u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
 	struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
-	enum thermal_device_mode mode;
 	struct mlxsw_thermal_module *tz_module_arr;
 	u8 tz_module_num;
 	struct mlxsw_thermal_module *tz_gearbox_arr;
@@ -277,33 +275,16 @@  static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
 	return 0;
 }
 
-static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
-				  enum thermal_device_mode *mode)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	*mode = thermal->mode;
-
-	return 0;
-}
-
 static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
 				  enum thermal_device_mode mode)
 {
 	struct mlxsw_thermal *thermal = tzdev->devdata;
 
-	mutex_lock(&tzdev->lock);
-
 	if (mode == THERMAL_DEVICE_ENABLED)
 		tzdev->polling_delay = thermal->polling_delay;
 	else
 		tzdev->polling_delay = 0;
 
-	mutex_unlock(&tzdev->lock);
-
-	thermal->mode = mode;
-	thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
-
 	return 0;
 }
 
@@ -407,7 +388,6 @@  static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
 static struct thermal_zone_device_ops mlxsw_thermal_ops = {
 	.bind = mlxsw_thermal_bind,
 	.unbind = mlxsw_thermal_unbind,
-	.get_mode = mlxsw_thermal_get_mode,
 	.set_mode = mlxsw_thermal_set_mode,
 	.get_temp = mlxsw_thermal_get_temp,
 	.get_trip_type	= mlxsw_thermal_get_trip_type,
@@ -466,34 +446,17 @@  static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
 	return err;
 }
 
-static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
-					 enum thermal_device_mode *mode)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	*mode = tz->mode;
-
-	return 0;
-}
-
 static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
 					 enum thermal_device_mode mode)
 {
 	struct mlxsw_thermal_module *tz = tzdev->devdata;
 	struct mlxsw_thermal *thermal = tz->parent;
 
-	mutex_lock(&tzdev->lock);
-
 	if (mode == THERMAL_DEVICE_ENABLED)
 		tzdev->polling_delay = thermal->polling_delay;
 	else
 		tzdev->polling_delay = 0;
 
-	mutex_unlock(&tzdev->lock);
-
-	tz->mode = mode;
-	thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
-
 	return 0;
 }
 
@@ -596,7 +559,6 @@  mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
 static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
-	.get_mode	= mlxsw_thermal_module_mode_get,
 	.set_mode	= mlxsw_thermal_module_mode_set,
 	.get_temp	= mlxsw_thermal_module_temp_get,
 	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
@@ -635,7 +597,6 @@  static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
 static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
-	.get_mode	= mlxsw_thermal_module_mode_get,
 	.set_mode	= mlxsw_thermal_module_mode_set,
 	.get_temp	= mlxsw_thermal_gearbox_temp_get,
 	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
@@ -765,7 +726,6 @@  mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
 		return err;
 	}
 
-	module_tz->mode = THERMAL_DEVICE_ENABLED;
 	return 0;
 }
 
@@ -881,7 +841,6 @@  mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
 	if (IS_ERR(gearbox_tz->tzdev))
 		return PTR_ERR(gearbox_tz->tzdev);
 
-	gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
 	return 0;
 }
 
@@ -1050,7 +1009,6 @@  int mlxsw_thermal_init(struct mlxsw_core *core,
 	if (err)
 		goto err_unreg_modules_tzdev;
 
-	thermal->mode = THERMAL_DEVICE_ENABLED;
 	*p_thermal = thermal;
 	return 0;
 
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 8cc86f4e3ac1..aaf8b845be90 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -406,22 +406,9 @@  static inline void acerhdf_enable_kernelmode(void)
 	kernelmode = 1;
 
 	thz_dev->polling_delay = interval*1000;
-	thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
 	pr_notice("kernel mode fan control ON\n");
 }
 
-static int acerhdf_get_mode(struct thermal_zone_device *thermal,
-			    enum thermal_device_mode *mode)
-{
-	if (verbose)
-		pr_notice("kernel mode fan control %d\n", kernelmode);
-
-	*mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
-			     : THERMAL_DEVICE_DISABLED;
-
-	return 0;
-}
-
 /*
  * set operation mode;
  * enabled: the thermal layer of the kernel takes care about
@@ -488,7 +475,6 @@  static struct thermal_zone_device_ops acerhdf_dev_ops = {
 	.bind = acerhdf_bind,
 	.unbind = acerhdf_unbind,
 	.get_temp = acerhdf_get_ec_temp,
-	.get_mode = acerhdf_get_mode,
 	.set_mode = acerhdf_set_mode,
 	.get_trip_type = acerhdf_get_trip_type,
 	.get_trip_hyst = acerhdf_get_trip_hyst,
@@ -554,6 +540,7 @@  static int acerhdf_set_cur_state(struct thermal_cooling_device *cdev,
 
 err_out:
 	acerhdf_revert_to_bios_mode();
+	thz_dev->mode = THERMAL_DEVICE_DISABLED;
 	return -EINVAL;
 }
 
@@ -739,6 +726,8 @@  static int __init acerhdf_register_thermal(void)
 	if (IS_ERR(cl_dev))
 		return -EINVAL;
 
+	acerhdf_zone_params.initial_mode =
+		kernelmode ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
 	thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
 					      &acerhdf_dev_ops,
 					      &acerhdf_zone_params, 0,
diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index c32709badeda..c3075d038095 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -49,7 +49,6 @@  struct da9062_thermal {
 	struct da9062 *hw;
 	struct delayed_work work;
 	struct thermal_zone_device *zone;
-	enum thermal_device_mode mode;
 	struct mutex lock; /* protection for da9062_thermal temperature */
 	int temperature;
 	int irq;
@@ -121,14 +120,6 @@  static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int da9062_thermal_get_mode(struct thermal_zone_device *z,
-				   enum thermal_device_mode *mode)
-{
-	struct da9062_thermal *thermal = z->devdata;
-	*mode = thermal->mode;
-	return 0;
-}
-
 static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
 					int trip,
 					enum thermal_trip_type *type)
@@ -181,7 +172,6 @@  static int da9062_thermal_get_temp(struct thermal_zone_device *z,
 
 static struct thermal_zone_device_ops da9062_thermal_ops = {
 	.get_temp	= da9062_thermal_get_temp,
-	.get_mode	= da9062_thermal_get_mode,
 	.get_trip_type	= da9062_thermal_get_trip_type,
 	.get_trip_temp	= da9062_thermal_get_trip_temp,
 };
@@ -233,7 +223,6 @@  static int da9062_thermal_probe(struct platform_device *pdev)
 
 	thermal->config = match->data;
 	thermal->hw = chip;
-	thermal->mode = THERMAL_DEVICE_ENABLED;
 	thermal->dev = &pdev->dev;
 
 	INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 2d26ae80e202..ee05950afd2f 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -549,8 +549,10 @@  static void hisi_thermal_toggle_sensor(struct hisi_thermal_sensor *sensor,
 {
 	struct thermal_zone_device *tzd = sensor->tzd;
 
-	tzd->ops->set_mode(tzd,
-		on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+	if (on)
+		thermal_zone_device_enable(tzd);
+	else
+		thermal_zone_device_disable(tzd);
 }
 
 static int hisi_thermal_probe(struct platform_device *pdev)
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index e761c9b42217..edbcb30815dc 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -197,7 +197,6 @@  struct imx_thermal_data {
 	struct cpufreq_policy *policy;
 	struct thermal_zone_device *tz;
 	struct thermal_cooling_device *cdev;
-	enum thermal_device_mode mode;
 	struct regmap *tempmon;
 	u32 c1, c2; /* See formula in imx_init_calib() */
 	int temp_passive;
@@ -256,7 +255,7 @@  static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 	bool wait;
 	u32 val;
 
-	if (data->mode == THERMAL_DEVICE_ENABLED) {
+	if (tz->mode == THERMAL_DEVICE_ENABLED) {
 		/* Check if a measurement is currently in progress */
 		regmap_read(map, soc_data->temp_data, &val);
 		wait = !(val & soc_data->temp_valid_mask);
@@ -283,7 +282,7 @@  static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	regmap_read(map, soc_data->temp_data, &val);
 
-	if (data->mode != THERMAL_DEVICE_ENABLED) {
+	if (tz->mode != THERMAL_DEVICE_ENABLED) {
 		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
 			     soc_data->measure_temp_mask);
 		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
@@ -331,16 +330,6 @@  static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 	return 0;
 }
 
-static int imx_get_mode(struct thermal_zone_device *tz,
-			enum thermal_device_mode *mode)
-{
-	struct imx_thermal_data *data = tz->devdata;
-
-	*mode = data->mode;
-
-	return 0;
-}
-
 static int imx_set_mode(struct thermal_zone_device *tz,
 			enum thermal_device_mode mode)
 {
@@ -376,9 +365,6 @@  static int imx_set_mode(struct thermal_zone_device *tz,
 		}
 	}
 
-	data->mode = mode;
-	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
 	return 0;
 }
 
@@ -467,7 +453,6 @@  static struct thermal_zone_device_ops imx_tz_ops = {
 	.bind = imx_bind,
 	.unbind = imx_unbind,
 	.get_temp = imx_get_temp,
-	.get_mode = imx_get_mode,
 	.set_mode = imx_set_mode,
 	.get_trip_type = imx_get_trip_type,
 	.get_trip_temp = imx_get_trip_temp,
@@ -831,7 +816,6 @@  static int imx_thermal_probe(struct platform_device *pdev)
 		     data->socdata->measure_temp_mask);
 
 	data->irq_enabled = true;
-	data->mode = THERMAL_DEVICE_ENABLED;
 
 	ret = devm_request_threaded_irq(&pdev->dev, data->irq,
 			imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
@@ -885,7 +869,7 @@  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;
+	thermal_zone_device_disable(data->tz);
 	clk_disable_unprepare(data->thermal_clk);
 
 	return 0;
@@ -905,7 +889,7 @@  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;
+	thermal_zone_device_enable(data->tz);
 
 	return 0;
 }
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index e802922a13cf..1751d4b103b1 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -44,7 +44,6 @@  static char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = {
 struct int3400_thermal_priv {
 	struct acpi_device *adev;
 	struct thermal_zone_device *thermal;
-	int mode;
 	int art_count;
 	struct art *arts;
 	int trt_count;
@@ -230,54 +229,32 @@  static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
 	return 0;
 }
 
-static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
-				enum thermal_device_mode *mode)
-{
-	struct int3400_thermal_priv *priv = thermal->devdata;
-
-	if (!priv)
-		return -EINVAL;
-
-	*mode = priv->mode;
-
-	return 0;
-}
-
 static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
 				enum thermal_device_mode mode)
 {
 	struct int3400_thermal_priv *priv = thermal->devdata;
-	bool enable;
 	int result = 0;
 
 	if (!priv)
 		return -EINVAL;
 
-	if (mode == THERMAL_DEVICE_ENABLED)
-		enable = true;
-	else if (mode == THERMAL_DEVICE_DISABLED)
-		enable = false;
-	else
-		return -EINVAL;
-
-	if (enable != priv->mode) {
-		priv->mode = enable;
+	if (mode != thermal->mode) {
 		result = int3400_thermal_run_osc(priv->adev->handle,
-						 priv->current_uuid_index,
-						 enable);
+						priv->current_uuid_index,
+						mode == THERMAL_DEVICE_ENABLED);
 	}
 	return result;
 }
 
 static struct thermal_zone_device_ops int3400_thermal_ops = {
 	.get_temp = int3400_thermal_get_temp,
-	.get_mode = int3400_thermal_get_mode,
 	.set_mode = int3400_thermal_set_mode,
 };
 
 static struct thermal_zone_params int3400_thermal_params = {
 	.governor_name = "user_space",
 	.no_hwmon = true,
+	.initial_mode = THERMAL_DEVICE_DISABLED,
 };
 
 static int int3400_thermal_probe(struct platform_device *pdev)
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 432213272f1e..b36da9bfbf8a 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -208,6 +208,7 @@  EXPORT_SYMBOL_GPL(int340x_thermal_read_trips);
 static struct thermal_zone_params int340x_thermal_params = {
 	.governor_name = "user_space",
 	.no_hwmon = true,
+	.initial_mode = THERMAL_DEVICE_ENABLED,
 };
 
 struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index d704fc104cfd..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/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index a006b9fd1d72..cb810a02aab0 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -56,6 +56,7 @@  struct zone_device {
 
 static struct thermal_zone_params pkg_temp_tz_params = {
 	.no_hwmon	= true,
+	.initial_mode	= THERMAL_DEVICE_ENABLED,
 };
 
 /* Keep track of how many zone pointers we allocated in init() */
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 874a47d6923f..48787a5576d8 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -51,7 +51,6 @@  struct __thermal_bind_params {
 
 /**
  * struct __thermal_zone - internal representation of a thermal zone
- * @mode: current thermal zone device mode (enabled/disabled)
  * @passive_delay: polling interval while passive cooling is activated
  * @polling_delay: zone polling interval
  * @slope: slope of the temperature adjustment curve
@@ -65,7 +64,6 @@  struct __thermal_bind_params {
  */
 
 struct __thermal_zone {
-	enum thermal_device_mode mode;
 	int passive_delay;
 	int polling_delay;
 	int slope;
@@ -269,23 +267,11 @@  static int of_thermal_unbind(struct thermal_zone_device *thermal,
 	return 0;
 }
 
-static int of_thermal_get_mode(struct thermal_zone_device *tz,
-			       enum thermal_device_mode *mode)
-{
-	struct __thermal_zone *data = tz->devdata;
-
-	*mode = data->mode;
-
-	return 0;
-}
-
 static int of_thermal_set_mode(struct thermal_zone_device *tz,
 			       enum thermal_device_mode mode)
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	mutex_lock(&tz->lock);
-
 	if (mode == THERMAL_DEVICE_ENABLED) {
 		tz->polling_delay = data->polling_delay;
 		tz->passive_delay = data->passive_delay;
@@ -294,11 +280,6 @@  static int of_thermal_set_mode(struct thermal_zone_device *tz,
 		tz->passive_delay = 0;
 	}
 
-	mutex_unlock(&tz->lock);
-
-	data->mode = mode;
-	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
 	return 0;
 }
 
@@ -393,7 +374,6 @@  static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
 }
 
 static struct thermal_zone_device_ops of_thermal_ops = {
-	.get_mode = of_thermal_get_mode,
 	.set_mode = of_thermal_set_mode,
 
 	.get_trip_type = of_thermal_get_trip_type,
@@ -554,7 +534,7 @@  thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
 			tzd = thermal_zone_of_add_sensor(child, sensor_np,
 							 data, ops);
 			if (!IS_ERR(tzd))
-				tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED);
+				thermal_zone_device_enable(tzd);
 
 			of_node_put(child);
 			goto exit;
@@ -979,7 +959,6 @@  __init *thermal_of_build_thermal_zone(struct device_node *np)
 
 finish:
 	of_node_put(child);
-	tz->mode = THERMAL_DEVICE_DISABLED;
 
 	return tz;
 
@@ -1120,6 +1099,7 @@  int __init of_parse_thermal_zones(void)
 		/* these two are left for temperature drivers to use */
 		tzp->slope = tz->slope;
 		tzp->offset = tz->offset;
+		tzp->initial_mode = THERMAL_DEVICE_DISABLED;
 
 		zone = thermal_zone_device_register(child->name, tz->ntrips,
 						    mask, tz,
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 15a71ecc916c..aa9e0e31ef98 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1068,8 +1068,10 @@  rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on)
 {
 	struct thermal_zone_device *tzd = sensor->tzd;
 
-	tzd->ops->set_mode(tzd,
-		on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+	if (on)
+		thermal_zone_device_enable(tzd);
+	else
+		thermal_zone_device_disable(tzd);
 }
 
 static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev)
diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c
index a340374e8c51..58f995b0f804 100644
--- a/drivers/thermal/sprd_thermal.c
+++ b/drivers/thermal/sprd_thermal.c
@@ -322,8 +322,10 @@  static void sprd_thm_toggle_sensor(struct sprd_thermal_sensor *sen, bool on)
 {
 	struct thermal_zone_device *tzd = sen->tzd;
 
-	tzd->ops->set_mode(tzd,
-		on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+	if (on)
+		thermal_zone_device_enable(tzd);
+	else
+		thermal_zone_device_disable(tzd);
 }
 
 static int sprd_thm_probe(struct platform_device *pdev)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index c06550930979..a012d77dd602 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -463,6 +463,44 @@  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;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_device_set_mode);
+
 void thermal_zone_device_update(struct thermal_zone_device *tz,
 				enum thermal_notify_event event)
 {
@@ -1236,6 +1274,7 @@  thermal_zone_device_register(const char *type, int trips, int mask,
 	int result;
 	int count;
 	struct thermal_governor *governor;
+	enum thermal_device_mode mode;
 
 	if (!type || strlen(type) == 0) {
 		pr_err("Error: No thermal zone type defined\n");
@@ -1340,9 +1379,9 @@  thermal_zone_device_register(const char *type, int trips, int mask,
 	INIT_DELAYED_WORK(&tz->poll_queue, thermal_zone_device_check);
 
 	thermal_zone_device_reset(tz);
-	/* Update the new thermal zone and mark it as already updated. */
-	if (atomic_cmpxchg(&tz->need_update, 1, 0))
-		thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+
+	mode = tzp ? tzp->initial_mode : THERMAL_DEVICE_ENABLED;
+	thermal_zone_device_set_mode(tz, mode);
 
 	return tz;
 
@@ -1473,9 +1512,7 @@  static int thermal_pm_notify(struct notifier_block *nb,
 	case PM_POST_SUSPEND:
 		atomic_set(&in_suspend, 0);
 		list_for_each_entry(tz, &thermal_tz_list, node) {
-			tz_mode = THERMAL_DEVICE_ENABLED;
-			if (tz->ops->get_mode)
-				tz->ops->get_mode(tz, &tz_mode);
+			tz_mode = thermal_zone_device_get_mode(tz);
 
 			if (tz_mode == THERMAL_DEVICE_DISABLED)
 				continue;
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index c95689586e19..ff5519adb68a 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -141,6 +141,9 @@  thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
 				    unsigned long new_state) {}
 #endif /* CONFIG_THERMAL_STATISTICS */
 
+enum thermal_device_mode
+thermal_zone_device_get_mode(struct thermal_zone_device *tz);
+
 /* device tree support */
 #ifdef CONFIG_THERMAL_OF
 int of_parse_thermal_zones(void);
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index aa99edb4dff7..cbb27b3c96d2 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -50,14 +50,8 @@  mode_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
 	enum thermal_device_mode mode;
-	int result;
-
-	if (!tz->ops->get_mode)
-		return -EPERM;
 
-	result = tz->ops->get_mode(tz, &mode);
-	if (result)
-		return result;
+	mode = thermal_zone_device_get_mode(tz);
 
 	return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
 		       : "disabled");
@@ -74,9 +68,9 @@  mode_store(struct device *dev, struct device_attribute *attr,
 		return -EPERM;
 
 	if (!strncmp(buf, "enabled", sizeof("enabled") - 1))
-		result = tz->ops->set_mode(tz, THERMAL_DEVICE_ENABLED);
+		result = thermal_zone_device_enable(tz);
 	else if (!strncmp(buf, "disabled", sizeof("disabled") - 1))
-		result = tz->ops->set_mode(tz, THERMAL_DEVICE_DISABLED);
+		result = thermal_zone_device_disable(tz);
 	else
 		result = -EINVAL;
 
@@ -428,30 +422,13 @@  static struct attribute_group thermal_zone_attribute_group = {
 	.attrs = thermal_zone_dev_attrs,
 };
 
-/* We expose mode only if .get_mode is present */
 static struct attribute *thermal_zone_mode_attrs[] = {
 	&dev_attr_mode.attr,
 	NULL,
 };
 
-static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
-					    struct attribute *attr,
-					    int attrno)
-{
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct thermal_zone_device *tz;
-
-	tz = container_of(dev, struct thermal_zone_device, device);
-
-	if (tz->ops->get_mode)
-		return attr->mode;
-
-	return 0;
-}
-
 static struct attribute_group thermal_zone_mode_attribute_group = {
 	.attrs = thermal_zone_mode_attrs,
-	.is_visible = thermal_zone_mode_is_visible,
 };
 
 /* We expose passive only if passive trips are present */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 216185bb3014..c789d4ff6e63 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -76,8 +76,6 @@  struct thermal_zone_device_ops {
 		       struct thermal_cooling_device *);
 	int (*get_temp) (struct thermal_zone_device *, int *);
 	int (*set_trips) (struct thermal_zone_device *, int, int);
-	int (*get_mode) (struct thermal_zone_device *,
-			 enum thermal_device_mode *);
 	int (*set_mode) (struct thermal_zone_device *,
 		enum thermal_device_mode);
 	int (*get_trip_type) (struct thermal_zone_device *, int,
@@ -128,6 +126,7 @@  struct thermal_cooling_device {
  * @trip_temp_attrs:	attributes for trip points for sysfs: trip temperature
  * @trip_type_attrs:	attributes for trip points for sysfs: trip type
  * @trip_hyst_attrs:	attributes for trip points for sysfs: trip hysteresis
+ * @mode:		current mode of this thermal zone
  * @devdata:	private pointer for device private data
  * @trips:	number of trip points the thermal zone supports
  * @trips_disabled;	bitmap for disabled trips
@@ -170,6 +169,7 @@  struct thermal_zone_device {
 	struct thermal_attr *trip_temp_attrs;
 	struct thermal_attr *trip_type_attrs;
 	struct thermal_attr *trip_hyst_attrs;
+	enum thermal_device_mode mode;
 	void *devdata;
 	int trips;
 	unsigned long trips_disabled;	/* bitmap for disabled trips */
@@ -264,6 +264,9 @@  struct thermal_zone_params {
 	int num_tbps;	/* Number of tbp entries */
 	struct thermal_bind_params *tbp;
 
+	/* Initial mode of this thermal zone device */
+	enum thermal_device_mode initial_mode;
+
 	/*
 	 * Sustainable power (heat) that this thermal zone can dissipate in
 	 * mW
@@ -395,6 +398,8 @@  int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
 				     unsigned int);
 int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
 				       struct thermal_cooling_device *);
+int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
+				 enum thermal_device_mode mode);
 void thermal_zone_device_update(struct thermal_zone_device *,
 				enum thermal_notify_event);
 
@@ -426,6 +431,9 @@  static inline struct thermal_zone_device *thermal_zone_device_register(
 static inline void thermal_zone_device_unregister(
 	struct thermal_zone_device *tz)
 { }
+int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
+				 enum thermal_device_mode mode)
+{ return -EINVAL; }
 static inline struct thermal_cooling_device *
 thermal_cooling_device_register(char *type, void *devdata,
 	const struct thermal_cooling_device_ops *ops)
@@ -465,4 +473,14 @@  static inline void thermal_notify_framework(struct thermal_zone_device *tz,
 { }
 #endif /* CONFIG_THERMAL */
 
+static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{
+	return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
+}
+
+static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
+{
+	return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);
+}
+
 #endif /* __THERMAL_H__ */