drm/rockchip: vop2: Support setting custom background color

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The Rockchip VOP2 display controller allows configuring the background
color of each video output port.

Since a previous patch introduced the BACKGROUND_COLOR CRTC property,
which defaults to solid black, make use of it when programming the
hardware.

Note the maximum precision allowed by the display controller is 10bpc,
while the alpha component is not supported, hence ignored.

Tested-by: Diederik de Haas <diederik@cknow-tech.com>
Reviewed-by: Andy Yan <andyshrk@163.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20260303-rk3588-bgcolor-v8-4-fee377037ad1@collabora.com
Signed-off-by: Daniel Stone <daniels@collabora.com>

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This commit is contained in:

Cristian Ciocaltea 2026-03-03 21:24:20 +02:00 • committed by Daniel Stone

parent 0b9eff726d

commit bec7cbfa7d

2 changed files with 27 additions and 1 deletions

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24

drivers/gpu/drm/rockchip/rockchip_drm_vop2.c

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4

drivers/gpu/drm/rockchip/rockchip_drm_vop2.h

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