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| author |   Maxime Ripard <maxime@cerno.tech> | 2021-01-11 15:23:00 +0100 |
|---|---|---|
| committer |   Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-02-09 17:14:10 +0100 |
| commit | 163a3ef681e5e9d5df558e855d86ccd4708d6200 (patch) | |
| tree | 6c75fc9f599947fd143cc897a0bb711df45ba7ab /include/linux/mfd/git:/ssh:/git@git.zx2c4.com | |
| parent | drm/vc4: hdmi: Restore cec physical address on reconnect (diff) | |
| download | linux-dev-163a3ef681e5e9d5df558e855d86ccd4708d6200.tar.xz linux-dev-163a3ef681e5e9d5df558e855d86ccd4708d6200.zip | |
drm/vc4: hdmi: Compute the CEC clock divider from the clock rate
The CEC clock divider needs to output a frequency of 40kHz from the HSM
rate on the BCM2835. The driver used to have a fixed frequency for it,
but that changed for the BCM2711 and we now need to compute it
dynamically to maintain the proper rate.
Fixes: cd4cb49dc5bb ("drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate")
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/20210111142309.193441-7-maxime@cerno.tech
(cherry picked from commit f1ceb9d10043683b89e5e5e5848fb4e855295762)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'include/linux/mfd/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions