diff options
Diffstat (limited to 'sound/soc/soc-jack.c')
| -rw-r--r-- | sound/soc/soc-jack.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index 28346fb2e70..1d455ab7949 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -73,14 +73,15 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask) oldstatus = jack->status; jack->status &= ~mask; - jack->status |= status; + jack->status |= status & mask; - /* The DAPM sync is expensive enough to be worth skipping */ - if (jack->status == oldstatus) + /* The DAPM sync is expensive enough to be worth skipping. + * However, empty mask means pin synchronization is desired. */ + if (mask && (jack->status == oldstatus)) goto out; list_for_each_entry(pin, &jack->pins, list) { - enable = pin->mask & status; + enable = pin->mask & jack->status; if (pin->invert) enable = !enable; @@ -220,6 +221,9 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, if (ret) goto err; + INIT_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, @@ -228,8 +232,13 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, if (ret) goto err; - INIT_WORK(&gpios[i].work, gpio_work); - gpios[i].jack = jack; +#ifdef CONFIG_GPIO_SYSFS + /* Expose GPIO value over sysfs for diagnostic purposes */ + gpio_export(gpios[i].gpio, false); +#endif + + /* Update initial jack status */ + snd_soc_jack_gpio_detect(&gpios[i]); } return 0; @@ -258,6 +267,9 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, int i; for (i = 0; i < count; i++) { +#ifdef CONFIG_GPIO_SYSFS + gpio_unexport(gpios[i].gpio); +#endif free_irq(gpio_to_irq(gpios[i].gpio), &gpios[i]); gpio_free(gpios[i].gpio); gpios[i].jack = NULL; |