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Commit 6d7f014e authored by Zhang, Rui's avatar Zhang, Rui Committed by Len Brown
Browse files

thermal: re-document thermal units 


From: Zhang Rui <rui.zhang@intel.com>

(reverting the previous sysfs patch also reverted a fix
 to the thermal units documentation, which is restored by this commit)

The generic thermal driver shows temperature in millidegree Celsius.

Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 91f57fa1

Documentation/thermal/sysfs-api.txt

+11 −11
Original line number Diff line number Diff line
@@ -143,10 +143,10 @@ type Strings which represent the thermal zone type. 
				This is given by thermal zone driver as part of registration.

				Eg: "ACPI thermal zone" indicates it's a ACPI thermal device

				RO

				Optional

				Required



temp				Current temperature as reported by thermal zone (sensor)

				Unit: degree Celsius

				Unit: millidegree Celsius

				RO

				Required
@@ -163,7 +163,7 @@ mode One of the predefined values in [kernel, user] 
					  charge of the thermal management.



trip_point_[0-*]_temp		The temperature above which trip point will be fired

				Unit: degree Celsius

				Unit: millidegree Celsius

				RO

				Optional
@@ -193,7 +193,7 @@ type String which represents the type of device 
				eg. For memory controller device on intel_menlow platform:

				this should be "Memory controller"

				RO

				Optional

				Required



max_state			The maximum permissible cooling state of this cooling device.

				RO
@@ -219,16 +219,16 @@ the sys I/F structure will be built like this: 


|thermal_zone1:

	|-----type:			ACPI thermal zone

	|-----temp:			37

	|-----temp:			37000

	|-----mode:			kernel

	|-----trip_point_0_temp:	100

	|-----trip_point_0_temp:	100000

	|-----trip_point_0_type:	critical

	|-----trip_point_1_temp:	80

	|-----trip_point_1_temp:	80000

	|-----trip_point_1_type:	passive

	|-----trip_point_2_temp:	70

	|-----trip_point_2_type:	active[0]

	|-----trip_point_3_temp:	60

	|-----trip_point_3_type:	active[1]

	|-----trip_point_2_temp:	70000

	|-----trip_point_2_type:	active0

	|-----trip_point_3_temp:	60000

	|-----trip_point_3_type:	active1

	|-----cdev0:			--->/sys/class/thermal/cooling_device0

	|-----cdev0_trip_point:		1	/* cdev0 can be used for passive */

	|-----cdev1:			--->/sys/class/thermal/cooling_device3