[media] Add proper audio support for Nova-S Plus with wm8775 ADC

This patch adds audio DMA capture and ALSA mixer elements for the line
input jack of the Hauppauge Nova-S-plus DVB-S PCI card.  The Nova-S-plus
has a WM8775 ADC that is currently not detected.  This patch enables
this chip and exports volume, balance mute and ALC elements for ALSA
mixer controls.

[mchehab@redhat.com: Changed the patch to only talk with wm8775 if board
info says so. Also, added platform_data support, to avoid changing the
behaviour for other boards, and fixed CodingStyle]

[awalls@md.metrocast.net: Changed patch to make the WM8775_GID defintion
bridge driver private and let the bridge driver set the value of
v4l2_subdev.grp_id.]

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Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index 8128b936c686..f735262f4767 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -970,7 +970,8 @@ static const struct cx88_board cx88_boards[] = {
                 .radio_type     = UNSET,
                 .tuner_addr     = ADDR_UNSET,
                 .radio_addr     = ADDR_UNSET,
-                .audio_chip = V4L2_IDENT_WM8775,
+                .audio_chip     = V4L2_IDENT_WM8775,
+                .i2sinputcntl   = 2,
                 .input          = {{
                         .type   = CX88_VMUX_DVB,
                         .vmux   = 0,