From 2b42b5a716d5fe941c950e30a68251f24197606d Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Tue, 6 Jan 2015 18:14:25 +0000 Subject: Documentation: thermal: document of_cpufreq_cooling_register() Commit 39d99cff76bf ("thermal: cpu_cooling: introduce of_cpufreq_cooling_register") taught the cpu cooling device to register devices that were linked to the device tree but didn't update the cpu-cooling-api documentation. Fix it. Cc: Amit Daniel Kachhap Cc: Jonathan Corbet Cc: Zhang Rui Cc: Eduardo Valentin Signed-off-by: Javi Merino Signed-off-by: Eduardo Valentin (cherry picked from commit 9477e18dd5d6c575ed972d81b7d9d6ff8a83746b) Signed-off-by: Kevin Hilman --- Documentation/thermal/cpu-cooling-api.txt | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/Documentation/thermal/cpu-cooling-api.txt b/Documentation/thermal/cpu-cooling-api.txt index fca24c931ec8..753e47cc2e20 100644 --- a/Documentation/thermal/cpu-cooling-api.txt +++ b/Documentation/thermal/cpu-cooling-api.txt @@ -3,7 +3,7 @@ CPU cooling APIs How To Written by Amit Daniel Kachhap -Updated: 12 May 2012 +Updated: 6 Jan 2015 Copyright (c) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com) @@ -25,7 +25,18 @@ the user. The registration APIs returns the cooling device pointer. clip_cpus: cpumask of cpus where the frequency constraints will happen. -1.1.2 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) +1.1.2 struct thermal_cooling_device *of_cpufreq_cooling_register( + struct device_node *np, const struct cpumask *clip_cpus) + + This interface function registers the cpufreq cooling device with + the name "thermal-cpufreq-%x" linking it with a device tree node, in + order to bind it via the thermal DT code. This api can support multiple + instances of cpufreq cooling devices. + + np: pointer to the cooling device device tree node + clip_cpus: cpumask of cpus where the frequency constraints will happen. + +1.1.3 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) This interface function unregisters the "thermal-cpufreq-%x" cooling device. -- cgit v1.2.3