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@debian.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 2 insertions, 7 deletions

diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index 6c0c0dbeb218..7f26cfbc8f52 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;
 }