diff options
| -rw-r--r-- | include/sound/soc-dapm.h | 5 | ||||
| -rw-r--r-- | include/sound/soc.h | 1 | ||||
| -rw-r--r-- | include/trace/events/asoc.h | 22 | ||||
| -rw-r--r-- | sound/soc/soc-dapm.c | 17 |
4 files changed, 45 insertions, 0 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 350b1b395ca..0e2d01713cb 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -537,4 +537,9 @@ struct snd_soc_dapm_widget_list { struct snd_soc_dapm_widget *widgets[0]; }; +struct snd_soc_dapm_stats { + int power_checks; + int path_checks; +}; + #endif diff --git a/include/sound/soc.h b/include/sound/soc.h index 24e17be38c1..006f4f633c5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -828,6 +828,7 @@ struct snd_soc_card { /* Generic DAPM context for the card */ struct snd_soc_dapm_context dapm; + struct snd_soc_dapm_stats dapm_stats; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_card_root; diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h index 603f5a0f036..2e1adf62e0a 100644 --- a/include/trace/events/asoc.h +++ b/include/trace/events/asoc.h @@ -216,6 +216,28 @@ DEFINE_EVENT(snd_soc_dapm_widget, snd_soc_dapm_widget_event_done, ); +TRACE_EVENT(snd_soc_dapm_walk_done, + + TP_PROTO(struct snd_soc_card *card), + + TP_ARGS(card), + + TP_STRUCT__entry( + __string( name, card->name ) + __field( int, power_checks ) + __field( int, path_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; + ), + + TP_printk("%s: %d power checks, %d path checks", __get_str(name), + (int)__entry->power_checks, (int)__entry->path_checks) +); + TRACE_EVENT(snd_soc_jack_irq, TP_PROTO(const char *name), diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 4a440b52dd7..6a1e13ea996 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -48,6 +48,8 @@ #include <trace/events/asoc.h> +#define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; + /* dapm power sequences - make this per codec in the future */ static int dapm_up_seq[] = { [snd_soc_dapm_pre] = 0, @@ -649,6 +651,8 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) struct snd_soc_dapm_path *path; int con = 0; + DAPM_UPDATE_STAT(widget, path_checks); + if (widget->id == snd_soc_dapm_supply) return 0; @@ -697,6 +701,8 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) struct snd_soc_dapm_path *path; int con = 0; + DAPM_UPDATE_STAT(widget, path_checks); + if (widget->id == snd_soc_dapm_supply) return 0; @@ -767,6 +773,8 @@ static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) { int in, out; + DAPM_UPDATE_STAT(w, power_checks); + in = is_connected_input_ep(w); dapm_clear_walk(w->dapm); out = is_connected_output_ep(w); @@ -779,6 +787,8 @@ static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) { int in; + DAPM_UPDATE_STAT(w, power_checks); + if (w->active) { in = is_connected_input_ep(w); dapm_clear_walk(w->dapm); @@ -793,6 +803,8 @@ static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) { int out; + DAPM_UPDATE_STAT(w, power_checks); + if (w->active) { out = is_connected_output_ep(w); dapm_clear_walk(w->dapm); @@ -808,6 +820,8 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) struct snd_soc_dapm_path *path; int power = 0; + DAPM_UPDATE_STAT(w, power_checks); + /* Check if one of our outputs is connected */ list_for_each_entry(path, &w->sinks, list_source) { if (path->weak) @@ -1208,6 +1222,8 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) } } + memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); + /* Check which widgets we need to power and store them in * lists indicating if they should be powered up or down. */ @@ -1299,6 +1315,7 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) list_for_each_entry(d, &card->dapm_list, list) d->target_bias_level = bias; + trace_snd_soc_dapm_walk_done(card); /* Run all the bias changes in parallel */ list_for_each_entry(d, &dapm->card->dapm_list, list) |