At Thu, 19 Jul 2012 02:42:54 -0700, Dylan Reid wrote:
Turn on the pin widget's PIN_OUT bit from playback prepare. The pin is enabled in open, but is disabled in hdmi_init_pin which is called during system resume. This causes a system suspend/resume during playback to mute HDMI/DP. Enabling the pin in prepare instead of open allows calling snd_pcm_prepare after a system resume to restore audio.
Signed-off-by: Dylan Reid dgreid@chromium.org
sound/pci/hda/patch_hdmi.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 0b4a1ea..764b975 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -914,9 +914,6 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo, mux_idx); pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
Do we still need to keep this line (and pinctl variable) in this function?
thanks,
Takashi
snd_hda_codec_write(codec, per_pin->pin_nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL,pinctl | PIN_OUT);snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
/* Initially set the converter's capabilities */
@@ -1153,11 +1150,17 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo, struct hdmi_spec *spec = codec->spec; int pin_idx = hinfo_to_pin_index(spec, hinfo); hda_nid_t pin_nid = spec->pins[pin_idx].pin_nid;
int pinctl;
hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
hdmi_setup_audio_infoframe(codec, pin_idx, substream);
pinctl = snd_hda_codec_read(codec, pin_nid, 0,
AC_VERB_GET_PIN_WIDGET_CONTROL, 0);snd_hda_codec_write(codec, pin_nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl | PIN_OUT);return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
}
-- 1.7.11.2.138.g2b53359