drm/bridge/synopsys: dw-hdmi: Add an option to suppress loading CEC driver

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This adds DW-HDMI driver a glue option to disable loading of the CEC sub-driver.

On some SoCs, the CEC functionality is enabled in the IP config bits, but the
CEC bus is non-functional like on Amlogic SoCs, where the CEC config bit is set
but the DW-HDMI CEC signal is not connected to a physical pin, leading to some
confusion when the DW-HDMI CEC controller can't communicate on the bus.

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20210416092737.1971876-2-narmstrong@baylibre.com

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Jernej Skrabec 2021-04-16 11:27:36 +02:00 • committed by Neil Armstrong

parent 42be7ca1fd

commit cd7f72e6e7

2 changed files with 3 additions and 1 deletions

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include/drm/bridge/dw_hdmi.h

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