3.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Iwai <ti...@suse.de>
commit 05909d5c679cf7c9a8a5bc663677c066a546894f upstream.
VT1802 codec seems to reset EAPD of other pins in the hardware level,
and this was another reason of the silent headphone output on some
machines. As a workaround, introduce a new flag indicating to keep
the EPAD on to the generic parser, and set it in patch_via.c.
Reported-by: Alex Riesen <raa.l...@gmail.com>
Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
sound/pci/hda/hda_generic.c | 2 ++
sound/pci/hda/hda_generic.h | 1 +
sound/pci/hda/patch_via.c | 1 +
3 files changed, 4 insertions(+)
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -772,6 +772,8 @@ static void set_pin_eapd(struct hda_code
return;
if (codec->inv_eapd)
enable = !enable;
+ if (spec->keep_eapd_on && !enable)
+ return;
snd_hda_codec_update_cache(codec, pin, 0,
AC_VERB_SET_EAPD_BTLENABLE,
enable ? 0x02 : 0x00);
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -205,6 +205,7 @@ struct hda_gen_spec {
unsigned int multi_cap_vol:1; /* allow multiple capture xxx volumes */
unsigned int inv_dmic_split:1; /* inverted dmic w/a for conexant */
unsigned int own_eapd_ctl:1; /* set EAPD by own function */
+ unsigned int keep_eapd_on:1; /* don't turn off EAPD automatically */
unsigned int vmaster_mute_enum:1; /* add vmaster mute mode enum */
unsigned int indep_hp:1; /* independent HP supported */
unsigned int prefer_hp_amp:1; /* enable HP amp for speaker if any */
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -136,6 +136,7 @@ static struct via_spec *via_new_spec(str
spec->codec_type = VT1708S;
spec->no_pin_power_ctl = 1;
spec->gen.indep_hp = 1;
+ spec->gen.keep_eapd_on = 1;
spec->gen.pcm_playback_hook = via_playback_pcm_hook;
return spec;
}
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