From: Ramesh Babu ramesh.babu@intel.com
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@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- 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 e64e505..008a29f 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1264,6 +1264,18 @@ 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,