From: Ramesh Babu <ramesh.babu@xxxxxxxxx>
The display power reference count is decremented with the first
explicit call to pm_runtime_suspend. Otherwise the display power
reference count is balanced with runtime resume/suspend. Rest
of the time it is kept off.
Signed-off-by: Ramesh Babu <ramesh.babu@xxxxxxxxx>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
sound/soc/codecs/hdac_hdmi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index f02a9fe..03d18fb 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -1285,6 +1285,18 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
INIT_LIST_HEAD(&hdmi_priv->pin_list);
INIT_LIST_HEAD(&hdmi_priv->cvt_list);
+ /*
+ * Turned off in the runtime_suspend during the first explicit
+ * pm_runtime_suspend call.
+ */
+ ret = snd_hdac_display_power(edev->hdac.bus, true);
+ if (ret < 0) {
+ dev_err(&edev->hdac.dev,
+ "Cannot turn on display power on i915 err: %d\n",
+ ret);
+ return ret;
+ }
+
ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais);
if (ret < 0) {
dev_err(&codec->dev,
--
1.9.1
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