From 0fb497f5b6ff8da1e9e60afb39835f40d7f043ec Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Thu, 6 Nov 2008 16:53:34 -0500 Subject: [PATCH] ALSA: cs5535audio: ensure MIC Bias/Analog Input bail if not on an OLPC machine Signed-off-by: Andres Salomon Signed-off-by: Takashi Iwai --- sound/pci/cs5535audio/cs5535audio_olpc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c index 164f6bdab991..5c6814335cd7 100644 --- a/sound/pci/cs5535audio/cs5535audio_olpc.c +++ b/sound/pci/cs5535audio/cs5535audio_olpc.c @@ -26,6 +26,9 @@ void olpc_analog_input(struct snd_ac97 *ac97, int on) { int err; + if (!machine_is_olpc()) + return; + /* update the High Pass Filter (via AC97_AD_TEST2) */ err = snd_ac97_update_bits(ac97, AC97_AD_TEST2, 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; + if (!machine_is_olpc()) + return; + on = on ? 0 : 1; err = snd_ac97_update_bits(ac97, AC97_AD_MISC, 1 << AC97_AD_VREFD_SHIFT, on << AC97_AD_VREFD_SHIFT);