ASoC: jack: Add support for GPIO descriptor defined jack pins
Allow jack GPIO pins be defined also using GPIO descriptor-based interface
in addition to legacy GPIO numbers. This is done by adding two new fields to
struct snd_soc_jack_gpio: idx and gpiod_dev.
Legacy GPIO numbers are used only when GPIO consumer device gpiod_dev is
NULL and otherwise idx is the descriptor index within the GPIO consumer
device.
New function snd_soc_jack_add_gpiods() is added for typical cases where all
GPIO descriptor jack pins belong to same GPIO consumer device. For other
cases the caller must set the gpiod_dev in struct snd_soc_jack_gpio before
calling snd_soc_jack_add_gpios().
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index c6bd40f..61bea88 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -453,6 +453,9 @@
#ifdef CONFIG_GPIOLIB
int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
struct snd_soc_jack_gpio *gpios);
+int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
+ struct snd_soc_jack *jack,
+ int count, struct snd_soc_jack_gpio *gpios);
void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
struct snd_soc_jack_gpio *gpios);
#else
@@ -462,6 +465,13 @@
return 0;
}
+int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
+ struct snd_soc_jack *jack,
+ int count, struct snd_soc_jack_gpio *gpios)
+{
+ return 0;
+}
+
static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
struct snd_soc_jack_gpio *gpios)
{
@@ -586,7 +596,9 @@
/**
* struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
*
- * @gpio: gpio number
+ * @gpio: legacy gpio number
+ * @idx: gpio descriptor index within the GPIO consumer device
+ * @gpiod_dev GPIO consumer device
* @name: gpio name
* @report: value to report when jack detected
* @invert: report presence in low state
@@ -598,6 +610,8 @@
*/
struct snd_soc_jack_gpio {
unsigned int gpio;
+ unsigned int idx;
+ struct device *gpiod_dev;
const char *name;
int report;
int invert;