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authorTakashi Iwai <tiwai@suse.de>2008-11-11 16:47:24 +0100
committerTakashi Iwai <tiwai@suse.de>2008-11-11 18:00:53 +0100
commit4f1e6bc3646ab50b8181555ab7e6eeab68b8632a (patch)
tree839106df0cbec337f4d46f3a498b90ccbc1bac9d /sound/pci
parent355a0ec471377a8a907b79c8fba3f0f09b44656e (diff)
downloadlinux-linaro-stable-4f1e6bc3646ab50b8181555ab7e6eeab68b8632a.tar.gz
ALSA: hda - Fix input pin initialization for STAC/IDT codecs
The input pins are sometimes not initialized properly because of the optimization check of the current pinctl code. Force to initialize the mic input pins so that they can be set up properly even if they were in a weird state. But keep other input pins if already set up as input, since this could be an extra mic pin. Reference: Novell bnc#443738 https://bugzilla.novell.com/show_bug.cgi?id=443738 Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/patch_sigmatel.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 1627756e5c7d..a51160106df3 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3653,14 +3653,18 @@ static int stac92xx_init(struct hda_codec *codec)
for (i = 0; i < AUTO_PIN_LAST; i++) {
hda_nid_t nid = cfg->input_pins[i];
if (nid) {
- unsigned int pinctl = snd_hda_codec_read(codec, nid,
- 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
- /* if PINCTL already set then skip */
- if (pinctl & AC_PINCAP_IN)
- continue;
- pinctl = AC_PINCTL_IN_EN;
- if (i == AUTO_PIN_MIC || i == AUTO_PIN_FRONT_MIC)
- pinctl |= stac92xx_get_vref(codec, nid);
+ unsigned int pinctl;
+ if (i == AUTO_PIN_MIC || i == AUTO_PIN_FRONT_MIC) {
+ /* for mic pins, force to initialize */
+ pinctl = stac92xx_get_vref(codec, nid);
+ } else {
+ pinctl = snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+ /* if PINCTL already set then skip */
+ if (pinctl & AC_PINCTL_IN_EN)
+ continue;
+ }
+ pinctl |= AC_PINCTL_IN_EN;
stac92xx_auto_set_pinctl(codec, nid, pinctl);
}
}