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ALSA: hda: Add powerdown for Analog Devices HDA codecs

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This patch ports powerdown fixes to AD198x. Currently we only turn off
Front and HP for suspend, but this is easily extended for additional
nids.

Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Daniel T Chen 2009-12-27 18:48:29 -05:00 committed by Takashi Iwai
parent 014c41fce1
commit ea52bf260e
1 changed files with 68 additions and 0 deletions
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68
sound/pci/hda/patch_analog.c
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@ -441,6 +441,11 @@ static int ad198x_build_pcms(struct hda_codec *codec)
return 0;
}
static inline void ad198x_shutup(struct hda_codec *codec)
{
snd_hda_shutup_pins(codec);
}
static void ad198x_free_kctls(struct hda_codec *codec)
{
struct ad198x_spec *spec = codec->spec;
@ -454,6 +459,46 @@ static void ad198x_free_kctls(struct hda_codec *codec)
snd_array_free(&spec->kctls);
}
static void ad198x_power_eapd_write(struct hda_codec *codec, hda_nid_t front,
hda_nid_t hp)
{
struct ad198x_spec *spec = codec->spec;
snd_hda_codec_write(codec, front, 0, AC_VERB_SET_EAPD_BTLENABLE,
!spec->inv_eapd ? 0x00 : 0x02);
snd_hda_codec_write(codec, hp, 0, AC_VERB_SET_EAPD_BTLENABLE,
!spec->inv_eapd ? 0x00 : 0x02);
}
static void ad198x_power_eapd(struct hda_codec *codec)
{
/* We currently only handle front, HP */
switch (codec->vendor_id) {
case 0x11d41882:
case 0x11d4882a:
case 0x11d41884:
case 0x11d41984:
case 0x11d41883:
case 0x11d4184a:
case 0x11d4194a:
case 0x11d4194b:
ad198x_power_eapd_write(codec, 0x12, 0x11);
break;
case 0x11d41981:
case 0x11d41983:
ad198x_power_eapd_write(codec, 0x05, 0x06);
break;
case 0x11d41986:
ad198x_power_eapd_write(codec, 0x1b, 0x1a);
break;
case 0x11d41988:
case 0x11d4198b:
case 0x11d4989a:
case 0x11d4989b:
ad198x_power_eapd_write(codec, 0x29, 0x22);
break;
}
}
static void ad198x_free(struct hda_codec *codec)
{
struct ad198x_spec *spec = codec->spec;
@ -461,11 +506,29 @@ static void ad198x_free(struct hda_codec *codec)
if (!spec)
return;
ad198x_shutup(codec);
ad198x_free_kctls(codec);
kfree(spec);
snd_hda_detach_beep_device(codec);
}
#ifdef SND_HDA_NEEDS_RESUME
static int ad198x_suspend(struct hda_codec *codec, pm_message_t state)
{
ad198x_shutup(codec);
ad198x_power_eapd(codec);
return 0;
}
static int ad198x_resume(struct hda_codec *codec)
{
ad198x_init(codec);
snd_hda_codec_resume_amp(codec);
snd_hda_codec_resume_cache(codec);
return 0;
}
#endif
static struct hda_codec_ops ad198x_patch_ops = {
.build_controls = ad198x_build_controls,
.build_pcms = ad198x_build_pcms,
@ -474,6 +537,11 @@ static struct hda_codec_ops ad198x_patch_ops = {
#ifdef CONFIG_SND_HDA_POWER_SAVE
.check_power_status = ad198x_check_power_status,
#endif
#ifdef SND_HDA_NEEDS_RESUME
.suspend = ad198x_suspend,
.resume = ad198x_resume,
#endif
.reboot_notify = ad198x_shutup,
};