ASoC: Add trace events for jack detection
As jack detection can trigger DAPM and the latency in debouncing can create
confusing windows in operation provide some trace events which will hopefully
help in diagnostics. The soc-jack core traces all reports that it gets and
the resulting notifications to upper layers. An event for jack IRQs is also
provided for instrumentation of debounce, and used in the GPIO jack code.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 0e9b071..ac5a5bc 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
+#include <trace/events/asoc.h>
/**
* snd_soc_jack_new - Create a new jack
@@ -64,6 +65,8 @@
int enable;
int oldstatus;
+ trace_snd_soc_jack_report(jack, mask, status);
+
if (!jack)
return;
@@ -82,6 +85,8 @@
if (mask && (jack->status == oldstatus))
goto out;
+ trace_snd_soc_jack_notify(jack, status);
+
list_for_each_entry(pin, &jack->pins, list) {
enable = pin->mask & jack->status;
@@ -210,6 +215,8 @@
struct snd_soc_jack_gpio *gpio = data;
struct device *dev = gpio->jack->codec->card->dev;
+ trace_snd_soc_jack_irq(gpio->name);
+
if (device_may_wakeup(dev))
pm_wakeup_event(dev, gpio->debounce_time + 50);