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drm/vc4: hdmi: Reset HDMI MISC_CONTROL register
[ Upstream commit 35dc00c ] The HDMI block can repeat pixels for double clocked modes, and the firmware is now configuring the block to do this as the PV is doing it incorrectly when at 2pixels/clock. If the kernel doesn't reset it then we end up with strange modes. Reset MISC_CONTROL. Fixes: 8323989 ("drm/vc4: hdmi: Support the BCM2711 HDMI controllers") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-22-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech> Signed-off-by: Sasha Levin <sashal@kernel.org>
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