Fix misunderstanding in how use component framework.
drm_platform_init() is now call only when all the
sub-components are register themselves instead of the
previous broken two stages mechanism.

Update bindings documentation.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Digital Video Out connector driver LCD panels.
Like HDMI and HDA it create bridge, encoder and connector
drm object.
Add binding description.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

High Quality Video Data Plane is hardware IP dedicated
to video rendering. Compare to GPD (graphic planes) it
have better scaler capabilities.

HQVDP use VID layer to push data into hardware compositor
without going into DDR. From data flow point of view HQVDP
and VID are nested so HQVPD update/disable VID.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

gpio used for HDMI hot plug detection is useless,
HDMI_STI register contains an hot plug detection status bit.
Fix binding documentation.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Depending of the board configuration i2c for ddc could change,
this patch allow to use a phandle to specify which i2c controller to use.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Add DRM/KMS driver bindings documentation.
Describe the required properties for each of the hardware IPs drivers.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NRob Clark <robdclark@gmail.com>