From 2d6f28fedcd2842635a02b29e3823ba9881d5086 Mon Sep 17 00:00:00 2001 From: Eduardo Valentin Date: Wed, 17 Apr 2013 17:12:01 +0000 Subject: thermal: cpu_cooling: add documentation for get_property As this is one of the central functions of this file, it deserves a proper documentation. This patch improves the existing comment to format it as a kernel-doc style. Signed-off-by: Eduardo Valentin Acked-by: Amit Daniel Kachhap Signed-off-by: Zhang Rui --- drivers/thermal/cpu_cooling.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers/thermal') diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c index b8b8a1ef85ed..084ef0096cc9 100644 --- a/drivers/thermal/cpu_cooling.c +++ b/drivers/thermal/cpu_cooling.c @@ -118,8 +118,14 @@ enum cpufreq_cooling_property { GET_MAXL, }; -/* - * this is the common function to +/** + * get_property - fetch a property of interest for a give cpu. + * @cpu: cpu for which the property is required + * @input: query parameter + * @output: query return + * @property: type of query (frequency, level, max level) + * + * This is the common function to * 1. get maximum cpu cooling states * 2. translate frequency to cooling state * 3. translate cooling state to frequency @@ -128,7 +134,9 @@ enum cpufreq_cooling_property { * a) reduce duplicate code as most of the code can be shared. * b) make sure the logic is consistent when translating between * cooling states and frequencies. -*/ + * + * Return: 0 on success, -EINVAL when invalid parameters are passed. + */ static int get_property(unsigned int cpu, unsigned long input, unsigned int* output, enum cpufreq_cooling_property property) { -- cgit v1.2.3