From: Libin Yang <libin.y...@intel.com>
On some Intel platforms, display audio need set N/CTS
manually at some TMDS frequencies.
Signed-off-by: Libin Yang <libin.y...@intel.com>
---
sound/pci/hda/patch_hdmi.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index a97db5f..4bd11ff 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1786,6 +1786,8 @@ static int generic_hdmi_playback_pcm_prepare(struct
hda_pcm_stream *hinfo,
int pin_idx = hinfo_to_pin_index(codec, hinfo);
struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
hda_nid_t pin_nid = per_pin->pin_nid;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct i915_audio_component *acomp = codec->bus->core.audio_component;
bool non_pcm;
int pinctl;
@@ -1802,6 +1804,11 @@ static int generic_hdmi_playback_pcm_prepare(struct
hda_pcm_stream *hinfo,
intel_not_share_assigned_cvt(codec, pin_nid, per_pin->mux_idx);
}
+ if (is_haswell_plus(codec)) {
+ if (acomp && acomp->ops && acomp->ops->set_ncts)
+ acomp->ops->set_ncts(acomp->dev, per_pin->pin_nid - 4,
+ 0, runtime->rate);
+ }
non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
mutex_lock(&per_pin->lock);
per_pin->channels = substream->runtime->channels;
--
1.9.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
