diff options
| author | Wang Xingchao <xingchao.wang@linux.intel.com> | 2013-06-18 06:41:53 +0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-06-18 10:04:15 +0400 |
| commit | 53b434f09340db8ad59b43789b7c43f54171fe36 (patch) | |
| tree | 0e883bf150eb8ceea494614a2f4cbf3c1cbda2ec /sound | |
| parent | 06ec56d3c60238f27bfa50d245592fccc1b4ef0f (diff) | |
| download | linux-53b434f09340db8ad59b43789b7c43f54171fe36.tar.xz | |
ALSA: hda - Haswell converter power state D0 verify
Haswell converters maybe in wrong power state before usage.
i.e. only converter 0 is in D0, converter 1/2 are in D3.
When pin choose converter 1/2, there's no audio output, this
cause dependency when playing differnt stream on pins.
AUD_PWRST ConvertorA_Widget_Power_State_Current D0
AUD_PWRST ConvertorA_Widget_Power_State_Requsted D0
AUD_PWRST ConvertorB_Widget_Power_State_Current D3
AUD_PWRST ConvertorB_Widget_Power_State_Requested D3
AUD_PWRST ConvC_Widget_PwrSt_Curr D3
AUD_PWRST ConvC_Widget_PwrSt_Req D3
This patch check converter's power state and set D0 if it's in D3 mode.
Signed-off-by: Wang Xingchao <xingchao.wang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index e12f7a030c58..8983747f2a37 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1018,10 +1018,19 @@ 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, hda_nid_t nid) +static void haswell_verify_pin_D0(struct hda_codec *codec, + hda_nid_t cvt_nid, hda_nid_t nid) { int pwr, lamp, ramp; + /* 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 + * converters are in correct power state */ + pwr = snd_hda_codec_read(codec, cvt_nid, 0, AC_VERB_GET_POWER_STATE, 0); + pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT; + if (pwr != AC_PWRST_D0) + snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0); + pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0); pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT; if (pwr != AC_PWRST_D0) { @@ -1068,7 +1077,7 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid, int new_pinctl = 0; if (codec->vendor_id == 0x80862807) - haswell_verify_pin_D0(codec, pin_nid); + haswell_verify_pin_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, |