linux-kernel - [PATCH 8/14] ALSA: cs5535audio: check OLPC's Analog Input status vis GPIO

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Date:	Thu, 6 Nov 2008 16:49:55 -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 8/14] ALSA: cs5535audio: check OLPC's Analog Input status
 vis GPIO


Checking the HPF register is irrelevant; HPF is secondary to the AI mode.
Instead, check for Analog Input mode via GPIO.

Signed-off-by: Andres Salomon <dilinger@...ian.org>
---
 sound/pci/cs5535audio/cs5535audio_olpc.c |    9 ++-------
 1 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index 2c148b9..f59af91 100644
--- a/sound/pci/cs5535audio/cs5535audio_olpc.c
+++ b/sound/pci/cs5535audio/cs5535audio_olpc.c
@@ -43,13 +43,8 @@ static int olpc_dc_info(struct snd_kcontrol *kctl,
 
 static int olpc_dc_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *v)
 {
-	struct cs5535audio *cs5535au = snd_kcontrol_chip(kctl);
-	u8 val;
-
-	val = snd_ac97_read(cs5535au->ac97, AC97_AD_TEST2);
-	val >>= AC97_AD_HPFD_SHIFT;
-	v->value.integer.value[0] = val & 0x1;
-
+	v->value.integer.value[0] = geode_gpio_isset(OLPC_GPIO_MIC_AC,
+			GPIO_OUTPUT_VAL);
 	return 0;
 }
 
-- 
1.5.6.5

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