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-rw-r--r--include/linux/clocksource.h11
-rw-r--r--kernel/time/clocksource.c12
2 files changed, 17 insertions, 6 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index c86c940d1de..081147da056 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -71,7 +71,7 @@ struct timecounter {
/**
* cyclecounter_cyc2ns - converts cycle counter cycles to nanoseconds
- * @tc: Pointer to cycle counter.
+ * @cc: Pointer to cycle counter.
* @cycles: Cycles
*
* XXX - This could use some mult_lxl_ll() asm optimization. Same code
@@ -114,7 +114,7 @@ extern u64 timecounter_read(struct timecounter *tc);
* time base as values returned by
* timecounter_read()
* @tc: Pointer to time counter.
- * @cycle: a value returned by tc->cc->read()
+ * @cycle_tstamp: a value returned by tc->cc->read()
*
* Cycle counts that are converted correctly as long as they
* fall into the interval [-1/2 max cycle count, +1/2 max cycle count],
@@ -156,11 +156,12 @@ extern u64 timecounter_cyc2time(struct timecounter *tc,
* @mult: cycle to nanosecond multiplier
* @shift: cycle to nanosecond divisor (power of two)
* @max_idle_ns: max idle time permitted by the clocksource (nsecs)
- * @maxadj maximum adjustment value to mult (~11%)
+ * @maxadj: maximum adjustment value to mult (~11%)
* @flags: flags describing special properties
* @archdata: arch-specific data
* @suspend: suspend function for the clocksource, if necessary
* @resume: resume function for the clocksource, if necessary
+ * @cycle_last: most recent cycle counter value seen by ::read()
*/
struct clocksource {
/*
@@ -187,6 +188,7 @@ struct clocksource {
void (*suspend)(struct clocksource *cs);
void (*resume)(struct clocksource *cs);
+ /* private: */
#ifdef CONFIG_CLOCKSOURCE_WATCHDOG
/* Watchdog related data, used by the framework */
struct list_head wd_list;
@@ -261,6 +263,9 @@ static inline u32 clocksource_hz2mult(u32 hz, u32 shift_constant)
/**
* clocksource_cyc2ns - converts clocksource cycles to nanoseconds
+ * @cycles: cycles
+ * @mult: cycle to nanosecond multiplier
+ * @shift: cycle to nanosecond divisor (power of two)
*
* Converts cycles to nanoseconds, using the given mult and shift.
*
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index da2f760e780..d3ad022136e 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -647,7 +647,7 @@ static void clocksource_enqueue(struct clocksource *cs)
/**
* __clocksource_updatefreq_scale - Used update clocksource with new freq
- * @t: clocksource to be registered
+ * @cs: clocksource to be registered
* @scale: Scale factor multiplied against freq to get clocksource hz
* @freq: clocksource frequency (cycles per second) divided by scale
*
@@ -699,7 +699,7 @@ EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);
/**
* __clocksource_register_scale - Used to install new clocksources
- * @t: clocksource to be registered
+ * @cs: clocksource to be registered
* @scale: Scale factor multiplied against freq to get clocksource hz
* @freq: clocksource frequency (cycles per second) divided by scale
*
@@ -727,7 +727,7 @@ EXPORT_SYMBOL_GPL(__clocksource_register_scale);
/**
* clocksource_register - Used to install new clocksources
- * @t: clocksource to be registered
+ * @cs: clocksource to be registered
*
* Returns -EBUSY if registration fails, zero otherwise.
*/
@@ -761,6 +761,8 @@ static void __clocksource_change_rating(struct clocksource *cs, int rating)
/**
* clocksource_change_rating - Change the rating of a registered clocksource
+ * @cs: clocksource to be changed
+ * @rating: new rating
*/
void clocksource_change_rating(struct clocksource *cs, int rating)
{
@@ -772,6 +774,7 @@ EXPORT_SYMBOL(clocksource_change_rating);
/**
* clocksource_unregister - remove a registered clocksource
+ * @cs: clocksource to be unregistered
*/
void clocksource_unregister(struct clocksource *cs)
{
@@ -787,6 +790,7 @@ EXPORT_SYMBOL(clocksource_unregister);
/**
* sysfs_show_current_clocksources - sysfs interface for current clocksource
* @dev: unused
+ * @attr: unused
* @buf: char buffer to be filled with clocksource list
*
* Provides sysfs interface for listing current clocksource.
@@ -807,6 +811,7 @@ sysfs_show_current_clocksources(struct sys_device *dev,
/**
* sysfs_override_clocksource - interface for manually overriding clocksource
* @dev: unused
+ * @attr: unused
* @buf: name of override clocksource
* @count: length of buffer
*
@@ -842,6 +847,7 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,
/**
* sysfs_show_available_clocksources - sysfs interface for listing clocksource
* @dev: unused
+ * @attr: unused
* @buf: char buffer to be filled with clocksource list
*
* Provides sysfs interface for listing registered clocksources