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ALSA: cs5535audio: ensure MIC Bias/Analog Input bail if not on an OLPC machine 

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Andres Salomon 2008-11-06 16:53:34 -05:00 committed by Takashi Iwai
parent b5ccc57b06
commit 0fb497f5b6
1 changed files with 6 additions and 0 deletions
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6
sound/pci/cs5535audio/cs5535audio_olpc.c
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@ -26,6 +26,9 @@ void olpc_analog_input(struct snd_ac97 *ac97, int on)
{ {
int err; int err;
if (!machine_is_olpc())
return;
/* update the High Pass Filter (via AC97_AD_TEST2) */ /* update the High Pass Filter (via AC97_AD_TEST2) */
err = snd_ac97_update_bits(ac97, AC97_AD_TEST2, err = snd_ac97_update_bits(ac97, AC97_AD_TEST2,
1 << AC97_AD_HPFD_SHIFT, on << AC97_AD_HPFD_SHIFT); 1 << AC97_AD_HPFD_SHIFT, on << AC97_AD_HPFD_SHIFT);
@ -48,6 +51,9 @@ void olpc_mic_bias(struct snd_ac97 *ac97, int on)
{ {
int err; int err;
if (!machine_is_olpc())
return;
on = on ? 0 : 1; on = on ? 0 : 1;
err = snd_ac97_update_bits(ac97, AC97_AD_MISC, err = snd_ac97_update_bits(ac97, AC97_AD_MISC,
1 << AC97_AD_VREFD_SHIFT, on << AC97_AD_VREFD_SHIFT); 1 << AC97_AD_VREFD_SHIFT, on << AC97_AD_VREFD_SHIFT);