drm/connector: Add enum documentation to drm_colorspace

To match the other enums, and add more information about these values.

v2:
 - Specify where an enum entry comes from
 - Clarify DEFAULT and NO_DATA behavior
 - BT.2020 CYCC is "constant luminance"
 - correct type for BT.601

v4:
- drop DP/HDMI clarifications that might create
  more questions than answers

v5:
- Add note on YCC and RGB variants

Signed-off-by: Joshua Ashton <[email protected]>
Signed-off-by: Harry Wentland <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Reviewed-by: Sebastian Wick <[email protected]>
Acked-by: Pekka Paalanen <[email protected]>
Reviewed-by: Simon Ser <[email protected]>

Cc: Pekka Paalanen <[email protected]>
Cc: Sebastian Wick <[email protected]>
Cc: [email protected]
Cc: Uma Shankar <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Cc: Joshua Ashton <[email protected]>
Cc: Simon Ser <[email protected]>
Cc: Melissa Wen <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions