[media] wm8775: Revert changeset fcb9757333 to avoid a regression

It seems that cx88 and ivtv use wm8775 on some different modes. The
patch that added support for a board with wm8775 broke ivtv boards with
this device. As we're too close to release 2.6.37, let's just revert
it.

Reported-by: Andy Walls <awalls@md.metrocast.net>
Reported-by: Eric Sharkey <eric@lisaneric.org>
Reported-by: Auric <auric@aanet.com.au>
Reported by: David Gesswein <djg@pdp8online.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 12 insertions, 87 deletions

diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
index 4aaa47c0eab..54b7fcd469a 100644
--- a/drivers/media/video/cx88/cx88-alsa.c
+++ b/drivers/media/video/cx88/cx88-alsa.c
@@ -40,7 +40,6 @@
 #include <sound/control.h>
 #include <sound/initval.h>
 #include <sound/tlv.h>
-#include <media/wm8775.h>
 
 #include "cx88.h"
 #include "cx88-reg.h"
@@ -587,47 +586,26 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
 	int left, right, v, b;
 	int changed = 0;
 	u32 old;
-	struct v4l2_control client_ctl;
-
-	/* Pass volume & balance onto any WM8775 */
-	if (value->value.integer.value[0] >= value->value.integer.value[1]) {
-		v = value->value.integer.value[0] << 10;
-		b = value->value.integer.value[0] ?
-			(0x8000 * value->value.integer.value[1]) / value->value.integer.value[0] :
-			0x8000;
-	} else {
-		v = value->value.integer.value[1] << 10;
-		b = value->value.integer.value[1] ?
-		0xffff - (0x8000 * value->value.integer.value[0]) / value->value.integer.value[1] :
-		0x8000;
-	}
-	client_ctl.value = v;
-	client_ctl.id = V4L2_CID_AUDIO_VOLUME;
-	call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
-
-	client_ctl.value = b;
-	client_ctl.id = V4L2_CID_AUDIO_BALANCE;
-	call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
 
 	left = value->value.integer.value[0] & 0x3f;
 	right = value->value.integer.value[1] & 0x3f;
 	b = right - left;
 	if (b < 0) {
-		v = 0x3f - left;
-		b = (-b) | 0x40;
+	    v = 0x3f - left;
+	    b = (-b) | 0x40;
 	} else {
-		v = 0x3f - right;
+	    v = 0x3f - right;
 	}
 	/* Do we really know this will always be called with IRQs on? */
 	spin_lock_irq(&chip->reg_lock);
 	old = cx_read(AUD_VOL_CTL);
 	if (v != (old & 0x3f)) {
-		cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v);
-		changed = 1;
+	    cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
+	    changed = 1;
 	}
-	if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) {
-		cx_write(AUD_BAL_CTL, b);
-		changed = 1;
+	if (cx_read(AUD_BAL_CTL) != b) {
+	    cx_write(AUD_BAL_CTL, b);
+	    changed = 1;
 	}
 	spin_unlock_irq(&chip->reg_lock);
 
@@ -640,7 +618,7 @@ static const struct snd_kcontrol_new snd_cx88_volume = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 		  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
-	.name = "Analog-TV Volume",
+	.name = "Playback Volume",
 	.info = snd_cx88_volume_info,
 	.get = snd_cx88_volume_get,
 	.put = snd_cx88_volume_put,
@@ -671,14 +649,7 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
 	vol = cx_read(AUD_VOL_CTL);
 	if (value->value.integer.value[0] != !(vol & bit)) {
 		vol ^= bit;
-		cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, vol);
-		/* Pass mute onto any WM8775 */
-		if ((1<<6) == bit) {
-			struct v4l2_control client_ctl;
-			client_ctl.value = 0 != (vol & bit);
-			client_ctl.id = V4L2_CID_AUDIO_MUTE;
-			call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
-		}
+		cx_write(AUD_VOL_CTL, vol);
 		ret = 1;
 	}
 	spin_unlock_irq(&chip->reg_lock);
@@ -687,7 +658,7 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
 
 static const struct snd_kcontrol_new snd_cx88_dac_switch = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name = "Audio-Out Switch",
+	.name = "Playback Switch",
 	.info = snd_ctl_boolean_mono_info,
 	.get = snd_cx88_switch_get,
 	.put = snd_cx88_switch_put,
@@ -696,49 +667,13 @@ static const struct snd_kcontrol_new snd_cx88_dac_switch = {
 
 static const struct snd_kcontrol_new snd_cx88_source_switch = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name = "Analog-TV Switch",
+	.name = "Capture Switch",
 	.info = snd_ctl_boolean_mono_info,
 	.get = snd_cx88_switch_get,
 	.put = snd_cx88_switch_put,
 	.private_value = (1<<6),
 };
 
-static int snd_cx88_alc_get(struct snd_kcontrol *kcontrol,
-			       struct snd_ctl_elem_value *value)
-{
-	snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
-	struct cx88_core *core = chip->core;
-	struct v4l2_control client_ctl;
-
-	client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
-	call_hw(core, WM8775_GID, core, g_ctrl, &client_ctl);
-	value->value.integer.value[0] = client_ctl.value ? 1 : 0;
-
-	return 0;
-}
-
-static int snd_cx88_alc_put(struct snd_kcontrol *kcontrol,
-				       struct snd_ctl_elem_value *value)
-{
-	snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
-	struct cx88_core *core = chip->core;
-	struct v4l2_control client_ctl;
-
-	client_ctl.value = 0 != value->value.integer.value[0];
-	client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
-	call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
-
-	return 0;
-}
-
-static struct snd_kcontrol_new snd_cx88_alc_switch = {
-	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name = "Line-In ALC Switch",
-	.info = snd_ctl_boolean_mono_info,
-	.get = snd_cx88_alc_get,
-	.put = snd_cx88_alc_put,
-};
-
 /****************************************************************************
 			Basic Flow for Sound Devices
  ****************************************************************************/
@@ -860,7 +795,6 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
 {
 	struct snd_card  *card;
 	snd_cx88_card_t  *chip;
-	struct v4l2_subdev *sd;
 	int              err;
 
 	if (devno >= SNDRV_CARDS)
@@ -896,15 +830,6 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
 	if (err < 0)
 		goto error;
 
-	/* If there's a wm8775 then add a Line-In ALC switch */
-	list_for_each_entry(sd, &chip->core->v4l2_dev.subdevs, list) {
-		if (WM8775_GID == sd->grp_id) {
-			snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch,
-						       chip));
-			break;
-		}
-	}
-
 	strcpy (card->driver, "CX88x");
 	sprintf(card->shortname, "Conexant CX%x", pci->device);
 	sprintf(card->longname, "%s at %#llx",