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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 <qkrwngud825@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Park Ju Hyung 2018-07-28 03:16:42 +09:00 committed by Takashi Iwai
parent d77a4b4a5b
commit f59cf9a055
1 changed files with 1 additions and 0 deletions
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1
sound/pci/hda/patch_conexant.c
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@ -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_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
snd_hda_codec_write(codec, codec->core.afg, 0, snd_hda_codec_write(codec, codec->core.afg, 0,
AC_VERB_SET_POWER_STATE, AC_PWRST_D3); AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
msleep(10);
} }
static void cx_auto_free(struct hda_codec *codec) static void cx_auto_free(struct hda_codec *codec)