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ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED

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The verb command in stac92xx_post_suspend caused the audio to stop
working after resuming from S3 mode on HP laptops with the VREF-pin
mute-LED control.  Removing relevant post_suspend registering.

Although removing D3 on AFG is no optimal solution, the impact should
be small in comparison with the broken S3/S4.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Charles Chin 2011-12-01 11:21:00 +01:00 committed by Takashi Iwai
parent 4f8b6c7dc8
commit 88d686027b
1 changed files with 0 additions and 18 deletions
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18
sound/pci/hda/patch_sigmatel.c
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@ -5057,20 +5057,6 @@ static int stac92xx_pre_resume(struct hda_codec *codec)
return 0;
}
static int stac92xx_post_suspend(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
if (spec->gpio_led > 8) {
/* with vref-out pin used for mute led control
* codec AFG is prevented from D3 state, but on
* system suspend it can (and should) be used
*/
snd_hda_codec_read(codec, codec->afg, 0,
AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
}
return 0;
}
static void stac92xx_set_power_state(struct hda_codec *codec, hda_nid_t fg,
unsigned int power_state)
{
@ -5670,8 +5656,6 @@ again:
} else {
codec->patch_ops.set_power_state =
stac92xx_set_power_state;
codec->patch_ops.post_suspend =
stac92xx_post_suspend;
}
codec->patch_ops.pre_resume = stac92xx_pre_resume;
codec->patch_ops.check_power_status =
@ -5985,8 +5969,6 @@ again:
} else {
codec->patch_ops.set_power_state =
stac92xx_set_power_state;
codec->patch_ops.post_suspend =
stac92xx_post_suspend;
}
codec->patch_ops.pre_resume = stac92xx_pre_resume;
codec->patch_ops.check_power_status =