[PATCH] ASoC: wm0010: Set IRQ as a wake source

[Charles Keepax <ckeepax@opensource.wolfsonmicro.com>]

The DSPs IRQ should be a wake source as several of the possible
algorithms may run whilst the AP is asleepi and require to wake the AP
to push or pull more data, such as compressed playback.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm0010.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index 370af0c..b6df319 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -972,6 +972,13 @@ static int wm0010_spi_probe(struct spi_device *spi)
 	}
 	wm0010->irq = irq;
 
+	ret = irq_set_irq_wake(irq, 1);
+	if (ret) {
+		dev_err(wm0010->dev, "Failed to set IRQ %d as wake source: %d\n",
+			irq, ret);
+		return ret;
+	}
+
 	if (spi->max_speed_hz)
 		wm0010->board_max_spi_speed = spi->max_speed_hz;
 	else
-- 
1.7.2.5