thermal: Simplify or eliminate unnecessary set_mode() methods

Setting polling_delay is now done at thermal_core level (by not polling
DISABLED devices), so no need to repeat this code.

int340x: Checking for an impossible enum value is unnecessary.
acpi/thermal: It only prints debug messages.

Signed-off-by: Andrzej Pietrasiewicz <[e-mail]>
[for acerhdf]
Acked-by: Peter Kaestle <[e-mail]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[e-mail]>
Reviewed-by: Amit Kucheria <[e-mail]>
Signed-off-by: Daniel Lezcano <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/acpi/thermal.c

···
 	return 0;
 }
 
-static int thermal_set_mode(struct thermal_zone_device *thermal,
-				enum thermal_device_mode mode)
-{
-	struct acpi_thermal *tz = thermal->devdata;
-
-	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_DISABLED)
-		pr_warn("thermal zone will be disabled\n");
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-		"%s kernel ACPI thermal control\n",
-		mode == THERMAL_DEVICE_ENABLED ?
-		"Enable" : "Disable"));
-
-	return 0;
-}
-
 static int thermal_get_trip_type(struct thermal_zone_device *thermal,
 				 int trip, enum thermal_trip_type *type)
 {
···
 	.bind = acpi_thermal_bind_cooling_device,
 	.unbind	= acpi_thermal_unbind_cooling_device,
 	.get_temp = thermal_get_temp,
-	.set_mode = thermal_set_mode,
 	.get_trip_type = thermal_get_trip_type,
 	.get_trip_temp = thermal_get_trip_temp,
 	.get_crit_temp = thermal_get_crit_temp,

drivers/net/ethernet/mellanox/mlxsw/core_thermal.c

···
 	return 0;
 }
 
-static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
-				  enum thermal_device_mode mode)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	if (mode == THERMAL_DEVICE_ENABLED)
-		tzdev->polling_delay = thermal->polling_delay;
-	else
-		tzdev->polling_delay = 0;
-
-	return 0;
-}
-
 static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
 				  int *p_temp)
 {
···
 static struct thermal_zone_device_ops mlxsw_thermal_ops = {
 	.bind = mlxsw_thermal_bind,
 	.unbind = mlxsw_thermal_unbind,
-	.set_mode = mlxsw_thermal_set_mode,
 	.get_temp = mlxsw_thermal_get_temp,
 	.get_trip_type	= mlxsw_thermal_get_trip_type,
 	.get_trip_temp	= mlxsw_thermal_get_trip_temp,
···
 		WARN_ON(err);
 	}
 	return err;
-}
-
-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;
-
-	if (mode == THERMAL_DEVICE_ENABLED)
-		tzdev->polling_delay = thermal->polling_delay;
-	else
-		tzdev->polling_delay = 0;
-
-	return 0;
 }
 
 static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
···
 static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
-	.set_mode	= mlxsw_thermal_module_mode_set,
 	.get_temp	= mlxsw_thermal_module_temp_get,
 	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
 	.get_trip_temp	= mlxsw_thermal_module_trip_temp_get,
···
 static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
-	.set_mode	= mlxsw_thermal_module_mode_set,
 	.get_temp	= mlxsw_thermal_gearbox_temp_get,
 	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
 	.get_trip_temp	= mlxsw_thermal_module_trip_temp_get,

drivers/platform/x86/acerhdf.c

···
 {
 	acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
 	kernelmode = 0;
-	if (thz_dev)
-		thz_dev->polling_delay = 0;
 
 	pr_notice("kernel mode fan control OFF\n");
 }
···
 {
 	kernelmode = 1;
 
-	thz_dev->polling_delay = interval*1000;
 	pr_notice("kernel mode fan control ON\n");
 }
 

drivers/thermal/imx_thermal.c

···
 	const struct thermal_soc_data *soc_data = data->socdata;
 
 	if (mode == THERMAL_DEVICE_ENABLED) {
-		tz->polling_delay = IMX_POLLING_DELAY;
-		tz->passive_delay = IMX_PASSIVE_DELAY;
-
 		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
 			     soc_data->power_down_mask);
 		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
···
 			     soc_data->measure_temp_mask);
 		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
 			     soc_data->power_down_mask);
-
-		tz->polling_delay = 0;
-		tz->passive_delay = 0;
 
 		if (data->irq_enabled) {
 			disable_irq(data->irq);

drivers/thermal/intel/int340x_thermal/int3400_thermal.c

···
 	if (!priv)
 		return -EINVAL;
 
-	if (mode != THERMAL_DEVICE_ENABLED &&
-	    mode != THERMAL_DEVICE_DISABLED)
-		return -EINVAL;
-
 	if (mode != thermal->mode)
 		result = int3400_thermal_run_osc(priv->adev->handle,
 						priv->current_uuid_index,

drivers/thermal/thermal_of.c

···
 	return 0;
 }
 
-static int of_thermal_set_mode(struct thermal_zone_device *tz,
-			       enum thermal_device_mode mode)
-{
-	struct __thermal_zone *data = tz->devdata;
-
-	if (mode == THERMAL_DEVICE_ENABLED) {
-		tz->polling_delay = data->polling_delay;
-		tz->passive_delay = data->passive_delay;
-	} else {
-		tz->polling_delay = 0;
-		tz->passive_delay = 0;
-	}
-
-	return 0;
-}
-
 static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
 				    enum thermal_trip_type *type)
 {
···
 }
 
 static struct thermal_zone_device_ops of_thermal_ops = {
-	.set_mode = of_thermal_set_mode,
-
 	.get_trip_type = of_thermal_get_trip_type,
 	.get_trip_temp = of_thermal_get_trip_temp,
 	.set_trip_temp = of_thermal_set_trip_temp,