[alsa-devel] [PATCH 4/4] ASoC: Intel: Skylake: power down all link in suspend

[Vinod Koul]

From: Jeeja KP <jeeja.kp at intel.com>

This ensures that the link is not requesting any clock and the
PLL can turn off. The link is powered when controller is brought
out of reset.

Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 sound/soc/intel/skylake/skl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index ca135b8ab5c0..5319529aedf7 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -173,6 +173,9 @@ static int skl_runtime_suspend(struct device *dev)
 
 	/* enable controller wake up event */
 	snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK);
+
+	snd_hdac_ext_bus_link_power_down_all(ebus);
+
 	ret = skl_suspend_dsp(skl);
 	if (ret < 0)
 		return ret;
-- 
2.4.3