From: wangdicheng wangdicheng@kylinos.cn
The front MIC capacitance of the Inspur board is too large, resulting in a longer charging and discharging time required, which in turn prevents recording for 5 seconds before startup. Therefore, software is used to increase the delay by 2 seconds to avoid this issue.
Signed-off-by: wangdicheng wangdicheng@kylinos.cn --- sound/pci/hda/patch_realtek.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 877137cb09ac..88675eae9447 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1001,6 +1001,14 @@ static int alc_resume(struct hda_codec *codec) if (!spec->no_depop_delay) msleep(150); /* to avoid pop noise */ codec->patch_ops.init(codec); + + if (codec->core.subsystem_id == 0x10ec1304) { + snd_hda_codec_write(codec, 0x19, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x04); + msleep(50); + snd_hda_codec_write(codec, 0x19, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x44); + msleep(2000); + snd_hda_codec_write(codec, 0x19, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80); + } snd_hda_regmap_sync(codec); hda_call_check_power_status(codec, 0x01); return 0;