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Commit 7887ab3a authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Allow GPIO jack detection to be configured as a wake source 



Some systems wish to use jacks as wake sources. Provide a wake flag in the
GPIO configuration which causes the driver to enable the IRQ as a wake
source.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 5a9f91ca

include/sound/soc.h

+3 −0
Original line number Diff line number Diff line
@@ -436,6 +436,7 @@ struct snd_soc_jack_zone { 
 * @report:       value to report when jack detected

 * @invert:       report presence in low state

 * @debouce_time: debouce time in ms

 * @wake:	  enable as wake source

 */

#ifdef CONFIG_GPIOLIB

struct snd_soc_jack_gpio {
@@ -444,6 +445,8 @@ struct snd_soc_jack_gpio { 
	int report;

	int invert;

	int debounce_time;

	bool wake;



	struct snd_soc_jack *jack;

	struct delayed_work work;

sound/soc/soc-jack.c

+8 −0
Original line number Diff line number Diff line
@@ -330,6 +330,14 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 
		if (ret)

			goto err;



		if (gpios[i].wake) {

			ret = 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);