linux-kernel - [PATCH 14/14] ALSA: cs5535audio: ensure MIC Bias/Analog Input bail if not on an OLPC machine

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Message-ID: <20081106165334.7897c989@ephemeral>
Date:	Thu, 6 Nov 2008 16:53:34 -0500
From:	Andres Salomon <dilinger@...ued.net>
To:	"Jaya Kumar" <jayakumar.lkml@...il.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 14/14] ALSA: cs5535audio: ensure MIC Bias/Analog Input bail
 if not on an OLPC machine


Signed-off-by: Andres Salomon <dilinger@...ian.org>
---
 sound/pci/cs5535audio/cs5535audio_olpc.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index 164f6bd..5c68143 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);
-- 
1.5.6.5

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