[RFC][PATCH] drm: add helper extracting SADs from EDID

[Rafał Miłecki]

2013/4/7 Rafał Miłecki <zajec5 at gmail.com>:
> Some devices (ATI/AMD cards) don't want passing ELD struct to the
> hardware but just require filling specific registers and then
> hardware/firmware does the rest. In such a cases we need to read info
> from SAD blocks and put them in the correct registers.

If you wish to see how exactly it works on radeon, see for example evergreend.h:
AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0
AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1
& friends.

-- 
Rafał