ALSA: hda - Sleep for 10ms after entering D3 on Conexant codecs

On rare occasions, we are still noticing that the internal speaker spitting out spurious noises even after adding the problematic codec to the list. Adding a 10ms artificial delay before rebooting fixes the issue entirely. Patch for Realtek codecs also adds the same amount of delay after entering D3. Signed-off-by: Park Ju Hyung <[email protected]> Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
bignaux · Jul 28, 2018 · f59cf9a · f59cf9a
1 parent d77a4b4
commit f59cf9a
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
@@ -226,6 +226,7 @@ static void cx_auto_reboot_notify(struct hda_codec *codec)
 	snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
 	snd_hda_codec_write(codec, codec->core.afg, 0,
 			    AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
+	msleep(10);
 }
 
 static void cx_auto_free(struct hda_codec *codec)