summaryrefslogtreecommitdiffstats
path: root/sound
diff options
context:
space:
mode:
authorMengdong Lin <mengdong.lin@intel.com>2013-09-04 22:37:12 +0200
committerTakashi Iwai <tiwai@suse.de>2013-09-06 18:23:54 +0200
commit58f7d28da6994e4292ade2ac9eabebb723a9bbe6 (patch)
tree988b43e1b074e7552f40de079fa36eb60b1a852a /sound
parentALSA: hda - define is_haswell() to check if a display audio codec is Haswell (diff)
downloadlinux-58f7d28da6994e4292ade2ac9eabebb723a9bbe6.tar.xz
linux-58f7d28da6994e4292ade2ac9eabebb723a9bbe6.zip
ALSA: hda - unmute pin amplifier in infoframe setup for Haswell
When Gfx driver reconnects a port and transcoder, the pin amplifier will be muted. To enable sound, the pin amp need to be unmuted. This patch - moves pin amp unmuting from stream preparing to hdmi_setup_audio_infoframe(). So if port:transcoder reconnection happens during stream playback, the ELDV unsol event can stil trigger pin's amp unmuting when re-setting up audio info frame. - remove reading pin amp status before unmuting for speed-up, since pin amp should always be unmuted. - rename haswell_verify_pin_D0() to haswell_verify_D0(), since the convertor power state is also fixed here. This patch is mostly based on suggestion of David Henningsson. Cc: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Mengdong Lin <mengdong.lin@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_hdmi.c36
1 files changed, 9 insertions, 27 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 009bcccbee7a..3a15225d6982 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -896,6 +896,11 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
if (!channels)
return;
+ if (is_haswell(codec))
+ snd_hda_codec_write(codec, pin_nid, 0,
+ AC_VERB_SET_AMP_GAIN_MUTE,
+ AMP_OUT_UNMUTE);
+
eld = &per_pin->sink_eld;
if (!eld->monitor_present)
return;
@@ -1035,10 +1040,10 @@ static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
hdmi_non_intrinsic_event(codec, res);
}
-static void haswell_verify_pin_D0(struct hda_codec *codec,
+static void haswell_verify_D0(struct hda_codec *codec,
hda_nid_t cvt_nid, hda_nid_t nid)
{
- int pwr, lamp, ramp;
+ int pwr;
/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
* thus pins could only choose converter 0 for use. Make sure the
@@ -1054,25 +1059,6 @@ static void haswell_verify_pin_D0(struct hda_codec *codec,
pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
}
-
- lamp = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_AMP_GAIN_MUTE,
- AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
- ramp = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_AMP_GAIN_MUTE,
- AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
- if (lamp != ramp) {
- snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
- AC_AMP_SET_RIGHT | AC_AMP_SET_OUTPUT | lamp);
-
- lamp = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_AMP_GAIN_MUTE,
- AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
- ramp = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_AMP_GAIN_MUTE,
- AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
- snd_printd("Haswell HDMI audio: Mute after set on pin 0x%x: [0x%x 0x%x]\n", nid, lamp, ramp);
- }
}
/*
@@ -1090,7 +1076,7 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
int new_pinctl = 0;
if (is_haswell(codec))
- haswell_verify_pin_D0(codec, cvt_nid, pin_nid);
+ haswell_verify_D0(codec, cvt_nid, pin_nid);
if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
pinctl = snd_hda_codec_read(codec, pin_nid, 0,
@@ -1361,13 +1347,9 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
* changed during the stream playback
*/
if (is_haswell(codec) &&
- eld->eld_valid && !old_eld_valid && per_pin->setup) {
- snd_hda_codec_write(codec, pin_nid, 0,
- AC_VERB_SET_AMP_GAIN_MUTE,
- AMP_OUT_UNMUTE);
+ eld->eld_valid && !old_eld_valid && per_pin->setup)
hdmi_setup_audio_infoframe(codec, per_pin,
per_pin->non_pcm);
- }
}
mutex_unlock(&pin_eld->lock);