drm/bridge: tc358767: Add configurable default preemphasis

Browse source

Make the default DP port preemphasis configurable via new DT property
"toshiba,pre-emphasis". This is useful in case the DP link properties
are known and starting link training from preemphasis setting of 0 dB
is not useful. The preemphasis can be set separately for both DP lanes
in range 0=0dB, 1=3.5dB, 2=6dB .

Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240708150130.54484-2-marex@denx.de

...

This commit is contained in:

Marek Vasut 2024-07-08 17:01:14 +02:00

parent b7d3d54479

commit 1fb4dceeed

1 changed files with 38 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

45

drivers/gpu/drm/bridge/tc358767.c

View file