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

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commit f59cf9a0551dd954ad8b752461cf19d9789f4b1d upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Park Ju Hyung 2018-07-28 03:16:42 +09:00 committed by Greg Kroah-Hartman
parent 72a579b814
commit 79141c5015
1 changed files with 1 additions and 0 deletions
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sound/pci/hda/patch_conexant.c
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@ -225,6 +225,7 @@ 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)