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ASoC: Add another DAPM stat for neighbour checks 

The number of times we look at a potentially connected neighbour is just
as important as the number of times we actually recurse into looking at
that neighbour so also collect that statistic.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-09-21 18:19:14 +01:00
parent 7aefb086c1
commit e56235e099
3 changed files with 10 additions and 2 deletions
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1
include/sound/soc-dapm.h
View File

@ -540,6 +540,7 @@ struct snd_soc_dapm_widget_list {
struct snd_soc_dapm_stats {
int power_checks;
int path_checks;
int neighbour_checks;
};
#endif

7
include/trace/events/asoc.h
View File

@ -226,16 +226,19 @@ TRACE_EVENT(snd_soc_dapm_walk_done,
__string( name, card->name )
__field( int, power_checks )
__field( int, path_checks )
__field( int, neighbour_checks )
),
TP_fast_assign(
__assign_str(name, card->name);
__entry->power_checks = card->dapm_stats.power_checks;
__entry->path_checks = card->dapm_stats.path_checks;
__entry->neighbour_checks = card->dapm_stats.neighbour_checks;
),
TP_printk("%s: %d power checks, %d path checks", __get_str(name),
(int)__entry->power_checks, (int)__entry->path_checks)
TP_printk("%s: checks %d power, %d path, %d neighbour",
__get_str(name), (int)__entry->power_checks,
(int)__entry->path_checks, (int)__entry->neighbour_checks)
);
TRACE_EVENT(snd_soc_jack_irq,

4
sound/soc/soc-dapm.c
View File

@ -677,6 +677,8 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget)
}
list_for_each_entry(path, &widget->sinks, list_source) {
DAPM_UPDATE_STAT(widget, neighbour_checks);
if (path->weak)
continue;
@ -732,6 +734,8 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget)
}
list_for_each_entry(path, &widget->sources, list_sink) {
DAPM_UPDATE_STAT(widget, neighbour_checks);
if (path->weak)
continue;