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: 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 4579ee0..1382251 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -330,6 +330,14 @@
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);