drm/rockchip: inno_hdmi: Correctly setup HDMI quantization range

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The display controller will always give full range RGB regardless of the
mode set, but HDMI requires certain modes to be transmitted in limited
range RGB. This is especially required for HDMI sinks which do not support
non-standard quantization ranges.

This enables color space conversion for those modes and sets the
quantization range accordingly in the AVI infoframe.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231222174220.55249-21-knaerzche@gmail.com

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Alex Bee 2023-12-22 18:42:11 +01:00 • committed by Heiko Stuebner

parent ceeb0f0104

commit 164abbd2b7

1 changed files with 42 additions and 18 deletions

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drivers/gpu/drm/rockchip/inno_hdmi.c

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