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ALSA: hda/conexant:Fix abnormal Mic/Speaker functionality on SN6140 after S3 wake-up

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Inside cx_codec_ops.set_power_state, implement a 1‑second delay after
resuming from the S3 state before sending the power command to the codec
AFG, thereby preventing potential transmission failures.

Signed-off-by: feng liu <feng.liu@senarytech.com>
Link: https://patch.msgid.link/20260828063456.1368-1-feng.liu@senaryTech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
feng liu 2026-08-28 14:34:56 +08:00 committed by Takashi Iwai
parent d476d5995c
commit 7b9b202f15
1 changed files with 20 additions and 0 deletions
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20
sound/hda/codecs/conexant.c
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@ -249,6 +249,25 @@ static void cx_update_headset_mic_vref(struct hda_codec *codec, struct hda_jack_
}
}
#define SN6140_S3_AFG_D0_DELAY_MS 1000
static void cx_set_power_state(struct hda_codec *codec, hda_nid_t fg,
unsigned int power_state)
{
snd_hda_codec_write_sync(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
/*
* SN6140 may not respond to AFG D0 immediately after S3.
* Wait before the D0 verb so the power-state command itself succeeds.
*/
if (codec->core.vendor_id == 0x14f11f87 &&
power_state == AC_PWRST_D0 &&
codec->core.dev.power.power_state.event == PM_EVENT_RESUME)
msleep(SN6140_S3_AFG_D0_DELAY_MS);
snd_hda_codec_set_power_to_all(codec, fg, power_state);
}
static int cx_suspend(struct hda_codec *codec)
{
cx_auto_shutdown(codec);
@ -1308,6 +1327,7 @@ static const struct hda_codec_ops cx_codec_ops = {
.init = cx_init,
.unsol_event = snd_hda_jack_unsol_event,
.suspend = cx_suspend,
.set_power_state = cx_set_power_state,
.check_power_status = snd_hda_gen_check_power_status,
.stream_pm = snd_hda_gen_stream_pm,
};