The hdmi reset got moved to a later point in the commit 9045e91a476b ("drm/vc4: hdmi: Add reset callback"). However, the reset now occurs after vc4_hdmi_cec_init and so tramples the setup of registers like HDMI_CEC_CNTRL_1 This only affects pi0-3 as on pi4 the cec registers are in a separate block Fixes: 9045e91a476b ("drm/vc4: hdmi: Add reset callback") Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Dom Cobley <popcornmix@gmail.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/20210111142309.193441-3-maxime@cerno.tech (cherry picked from commit 7155334f15f360f5c98391c5c7e12af4c13395c4) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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