1 files changed, 87 insertions, 21 deletions

diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 29159e1781d0..7c17b98d5846 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -13,11 +13,11 @@
 
 #include <sound/jack.h>
 #include <sound/soc.h>
-#include <sound/soc-dapm.h>
 #include <linux/gpio.h>
 #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
@@ -32,14 +32,15 @@
  * Returns zero if successful, or a negative error code on failure.
  * On success jack will be initialised.
  */
-int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
+int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
                      struct snd_soc_jack *jack)
 {
-        jack->card = card;
+        jack->codec = codec;
         INIT_LIST_HEAD(&jack->pins);
+        INIT_LIST_HEAD(&jack->jack_zones);
         BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier);
 
-        return snd_jack_new(card->codec->card, id, type, &jack->jack);
+        return snd_jack_new(codec->card->snd_card, id, type, &jack->jack);
 }
 EXPORT_SYMBOL_GPL(snd_soc_jack_new);
 
@@ -60,14 +61,18 @@ EXPORT_SYMBOL_GPL(snd_soc_jack_new);
 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
 {
         struct snd_soc_codec *codec;
+        struct snd_soc_dapm_context *dapm;
         struct snd_soc_jack_pin *pin;
         int enable;
         int oldstatus;
 
+        trace_snd_soc_jack_report(jack, mask, status);
+
         if (!jack)
                 return;
 
-        codec = jack->card->codec;
+        codec = jack->codec;
+        dapm =  &codec->dapm;
 
         mutex_lock(&codec->mutex);
 
@@ -81,6 +86,8 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
         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;
 
@@ -88,15 +95,15 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
                         enable = !enable;
 
                 if (enable)
-                        snd_soc_dapm_enable_pin(codec, pin->pin);
+                        snd_soc_dapm_enable_pin(dapm, pin->pin);
                 else
-                        snd_soc_dapm_disable_pin(codec, pin->pin);
+                        snd_soc_dapm_disable_pin(dapm, pin->pin);
         }
 
         /* Report before the DAPM sync to help users updating micbias status */
-        blocking_notifier_call_chain(&jack->notifier, status, NULL);
+        blocking_notifier_call_chain(&jack->notifier, status, jack);
 
-        snd_soc_dapm_sync(codec);
+        snd_soc_dapm_sync(dapm);
 
         snd_jack_report(jack->jack, status);
 
@@ -106,6 +113,51 @@ out:
 EXPORT_SYMBOL_GPL(snd_soc_jack_report);
 
 /**
+ * snd_soc_jack_add_zones - Associate voltage zones with jack
+ *
+ * @jack:  ASoC jack
+ * @count: Number of zones
+ * @zone:  Array of zones
+ *
+ * After this function has been called the zones specified in the
+ * array will be associated with the jack.
+ */
+int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
+                          struct snd_soc_jack_zone *zones)
+{
+        int i;
+
+        for (i = 0; i < count; i++) {
+                INIT_LIST_HEAD(&zones[i].list);
+                list_add(&(zones[i].list), &jack->jack_zones);
+        }
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_add_zones);
+
+/**
+ * snd_soc_jack_get_type - Based on the mic bias value, this function returns
+ * the type of jack from the zones delcared in the jack type
+ *
+ * @micbias_voltage:  mic bias voltage at adc channel when jack is plugged in
+ *
+ * Based on the mic bias value passed, this function helps identify
+ * the type of jack from the already delcared jack zones
+ */
+int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage)
+{
+        struct snd_soc_jack_zone *zone;
+
+        list_for_each_entry(zone, &jack->jack_zones, list) {
+                if (micbias_voltage >= zone->min_mv &&
+                        micbias_voltage < zone->max_mv)
+                                return zone->jack_type;
+        }
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_get_type);
+
+/**
  * snd_soc_jack_add_pins - Associate DAPM pins with an ASoC jack
  *
  * @jack:  ASoC jack
@@ -188,10 +240,7 @@ static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
         int enable;
         int report;
 
-        if (gpio->debounce_time > 0)
-                mdelay(gpio->debounce_time);
-
-        enable = gpio_get_value(gpio->gpio);
+        enable = gpio_get_value_cansleep(gpio->gpio);
         if (gpio->invert)
                 enable = !enable;
 
@@ -210,8 +259,15 @@ static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
 static irqreturn_t gpio_handler(int irq, void *data)
 {
         struct snd_soc_jack_gpio *gpio = data;
+        struct device *dev = gpio->jack->codec->card->dev;
+
+        trace_snd_soc_jack_irq(gpio->name);
 
-        schedule_work(&gpio->work);
+        if (device_may_wakeup(dev))
+                pm_wakeup_event(dev, gpio->debounce_time + 50);
+
+        schedule_delayed_work(&gpio->work,
+                              msecs_to_jiffies(gpio->debounce_time));
 
         return IRQ_HANDLED;
 }
@@ -221,7 +277,7 @@ static void gpio_work(struct work_struct *work)
 {
         struct snd_soc_jack_gpio *gpio;
 
-        gpio = container_of(work, struct snd_soc_jack_gpio, work);
+        gpio = container_of(work, struct snd_soc_jack_gpio, work.work);
         snd_soc_jack_gpio_detect(gpio);
 }
 
@@ -262,17 +318,26 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
                 if (ret)
                         goto err;
 
-                INIT_WORK(&gpios[i].work, gpio_work);
+                INIT_DELAYED_WORK(&gpios[i].work, gpio_work);
                 gpios[i].jack = jack;
 
-                ret = request_irq(gpio_to_irq(gpios[i].gpio),
-                                gpio_handler,
-                                IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-                                jack->card->dev->driver->name,
-                                &gpios[i]);
+                ret = request_any_context_irq(gpio_to_irq(gpios[i].gpio),
+                                              gpio_handler,
+                                              IRQF_TRIGGER_RISING |
+                                              IRQF_TRIGGER_FALLING,
+                                              gpios[i].name,
+                                              &gpios[i]);
                 if (ret)
                         goto err;
 
+                if (gpios[i].wake) {
+                        ret = irq_set_irq_wake(gpio_to_irq(gpios[i].gpio), 1);
+                        if (ret != 0)
+                                printk(KERN_ERR
+                                  "Failed to mark GPIO %d as wake source: %d\n",
+                                        gpios[i].gpio, ret);
+                }
+
 #ifdef CONFIG_GPIO_SYSFS
                 /* Expose GPIO value over sysfs for diagnostic purposes */
                 gpio_export(gpios[i].gpio, false);
@@ -312,6 +377,7 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
                 gpio_unexport(gpios[i].gpio);
 #endif
                 free_irq(gpio_to_irq(gpios[i].gpio), &gpios[i]);
+                cancel_delayed_work_sync(&gpios[i].work);
                 gpio_free(gpios[i].gpio);
                 gpios[i].jack = NULL;
         }