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

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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.

[[email protected]: 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]

[[email protected]: 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 <[email protected]>
Signed-off-by: Andy Walls <[email protected]>
This commit is contained in:
Lawrence Rust 2011-02-06 17:46:12 -03:00 • committed by Mauro Carvalho Chehab
commit 6951803c24
7 changed files with 267 additions and 62 deletions
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9
include/media/wm8775.h
View file

@ -32,4 +32,13 @@
#define WM8775_AIN3 4
#define WM8775_AIN4 8
struct wm8775_platform_data {
/*
* FIXME: Instead, we should parametrize the params
* that need different settings between ivtv, pvrusb2, and Nova-S
*/
bool is_nova_s;
};
#endif