drm/vc4: hdmi: Introduce a CEC clock
While the BCM2835 had the CEC clock derived from the HSM clock, the BCM2711 has a dedicated parent clock for it. Let's introduce a separate clock for it so that we can handle both cases. Reviewed-by:Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Acked-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Tested-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Link: https://patchwork.freedesktop.org/patch/msgid/20210111142309.193441-9-maxime@cerno.tech
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