docs: thermal: add it to the driver API

The file contents mostly describes driver internals.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/driver-api/index.rst

@@ -65,6 +65,7 @@ available subsections can be seen below.
    dmaengine/index
    slimbus
    soundwire/index
+   thermal/index
    fpga/index
    acpi/index
    backlight/lp855x-driver.rst

Documentation/driver-api/thermal/index.rst

@@ -1,4 +1,4 @@
-:orphan:
+.. SPDX-License-Identifier: GPL-2.0
 
 =======
 Thermal

Documentation/driver-api/thermal/sysfs-api.rst

@@ -552,7 +552,7 @@ emul_temp
 sustainable_power
 	An estimate of the sustained power that can be dissipated by
 	the thermal zone. Used by the power allocator governor. For
-	more information see Documentation/thermal/power_allocator.rst
+	more information see Documentation/driver-api/thermal/power_allocator.rst
 
 	Unit: milliwatts
 
@@ -563,7 +563,7 @@ k_po
 	controller during temperature overshoot. Temperature overshoot
 	is when the current temperature is above the "desired
 	temperature" trip point. For more information see
-	Documentation/thermal/power_allocator.rst
+	Documentation/driver-api/thermal/power_allocator.rst
 
 	RW, Optional
 
@@ -572,7 +572,7 @@ k_pu
 	controller during temperature undershoot. Temperature undershoot
 	is when the current temperature is below the "desired
 	temperature" trip point. For more information see
-	Documentation/thermal/power_allocator.rst
+	Documentation/driver-api/thermal/power_allocator.rst
 
 	RW, Optional
 
@@ -580,14 +580,14 @@ k_i
 	The integral term of the power allocator governor's PID
 	controller. This term allows the PID controller to compensate
 	for long term drift. For more information see
-	Documentation/thermal/power_allocator.rst
+	Documentation/driver-api/thermal/power_allocator.rst
 
 	RW, Optional
 
 k_d
 	The derivative term of the power allocator governor's PID
 	controller. For more information see
-	Documentation/thermal/power_allocator.rst
+	Documentation/driver-api/thermal/power_allocator.rst
 
 	RW, Optional
 
@@ -598,7 +598,7 @@ integral_cutoff
 	example, if integral_cutoff is 0, then the integral term only
 	accumulates error when temperature is above the desired
 	temperature trip point. For more information see
-	Documentation/thermal/power_allocator.rst
+	Documentation/driver-api/thermal/power_allocator.rst
 
 	Unit: millidegree Celsius
 

Documentation/driver-api/thermal/x86_pkg_temperature_thermal.rst

@@ -40,7 +40,7 @@ This contains two trip points:
 - trip_point_1_temp
 
 User can set any temperature between 0 to TJ-Max temperature. Temperature units
-are in milli-degree Celsius. Refer to "Documentation/thermal/sysfs-api.rst" for
+are in milli-degree Celsius. Refer to "Documentation/driver-api/thermal/sysfs-api.rst" for
 thermal sys-fs details.
 
 Any value other than 0 in these trip points, can trigger thermal notifications.

MAINTAINERS

@@ -15916,7 +15916,7 @@ M:	Viresh Kumar <viresh.kumar@linaro.org>
 M:	Javi Merino <javi.merino@kernel.org>
 L:	linux-pm@vger.kernel.org
 S:	Supported
-F:	Documentation/thermal/cpu-cooling-api.rst
+F:	Documentation/driver-api/thermal/cpu-cooling-api.rst
 F:	drivers/thermal/cpu_cooling.c
 F:	include/linux/cpu_cooling.h
 

include/linux/thermal.h

@@ -251,7 +251,7 @@ struct thermal_bind_params {
 	 * platform characterization. This value is relative to the
 	 * rest of the weights so a cooling device whose weight is
 	 * double that of another cooling device is twice as
-	 * effective. See Documentation/thermal/sysfs-api.rst for more
+	 * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more
 	 * information.
 	 */
 	int weight;
@@ -259,7 +259,7 @@ struct thermal_bind_params {
 	/*
 	 * This is a bit mask that gives the binding relation between this
 	 * thermal zone and cdev, for a particular trip point.
-	 * See Documentation/thermal/sysfs-api.rst for more information.
+	 * See Documentation/driver-api/thermal/sysfs-api.rst for more information.
 	 */
 	int trip_mask;