drm/vc4: hdmi: Warn if we access the controller while disabled

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We've had many silent hangs where the kernel would look like it just
stalled due to the access to one of the HDMI registers while the
controller was disabled.

Add a warning if we're about to do that so that it's at least not silent
anymore.

Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210819135931.895976-7-maxime@cerno.tech

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Maxime Ripard 2021-08-19 15:59:31 +02:00

parent 20b0dfa86b

commit 14e193b956

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drivers/gpu/drm/vc4/vc4_hdmi_regs.h

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