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drm/vc4: add HDMI CEC support

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This patch adds support to VC4 for CEC.  It is under a separate
Kconfig option to keep everyone using VC4 from needing to pull in the
CEC core.

Thanks to Eric Anholt for providing me with the CEC register information.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20170716104804.48308-4-hverkuil@xs4all.nl
This commit is contained in:
Hans Verkuil
2017-07-16 12:48:04 +02:00
committed by Eric Anholt
parent 10ee275cb1
commit 15b4511a4a
3 changed files with 345 additions and 6 deletions
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8
drivers/gpu/drm/vc4/Kconfig
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@@ -19,3 +19,11 @@ config DRM_VC4
This driver requires that "avoid_warnings=2" be present in
the config.txt for the firmware, to keep it from smashing
our display setup.
config DRM_VC4_HDMI_CEC
bool "Broadcom VC4 HDMI CEC Support"
depends on DRM_VC4
select CEC_CORE
help
Choose this option if you have a Broadcom VC4 GPU
and want to use CEC.