ALSA: hda - Add snd_hda_get_default_vref() helper function
Add a new helper function to guess the default VREF pin control bits
for mic in. This can be used to set the pin control value safely
matching with the actual pin capabilities.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9560b8e..951a090 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -325,7 +325,7 @@
* first is the real internal mic and the second is HP jack.
*/
if (spec->cur_mux[adc_idx])
- val = PIN_VREF80;
+ val = snd_hda_get_default_vref(codec, pin) | PIN_IN;
else
val = PIN_HP;
snd_hda_set_pin_ctl(codec, pin, val);
@@ -379,24 +379,8 @@
int auto_pin_type)
{
unsigned int val = PIN_IN;
-
- if (auto_pin_type == AUTO_PIN_MIC) {
- unsigned int pincap;
- unsigned int oldval;
- oldval = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
- pincap = snd_hda_query_pin_caps(codec, nid);
- pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
- /* if the default pin setup is vref50, we give it priority */
- if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
- val = PIN_VREF80;
- else if (pincap & AC_PINCAP_VREF_50)
- val = PIN_VREF50;
- else if (pincap & AC_PINCAP_VREF_100)
- val = PIN_VREF100;
- else if (pincap & AC_PINCAP_VREF_GRD)
- val = PIN_VREFGRD;
- }
+ if (auto_pin_type == AUTO_PIN_MIC)
+ val |= snd_hda_get_default_vref(codec, nid);
snd_hda_set_pin_ctl(codec, nid, val);
}