On Tue, Jun 04, 2024 at 11:42:31AM +0200, Alexander Stein wrote: > Hi Marek, > > Am Freitag, 31. Mai 2024, 22:42:03 CEST schrieb Marek Vasut: > > Document 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 . > > > > Signed-off-by: Marek Vasut <[email protected]> > > --- > > Cc: Andrzej Hajda <[email protected]> > > Cc: Conor Dooley <[email protected]> > > Cc: Daniel Vetter <[email protected]> > > Cc: David Airlie <[email protected]> > > Cc: Jernej Skrabec <[email protected]> > > Cc: Jonas Karlman <[email protected]> > > Cc: Krzysztof Kozlowski <[email protected]> > > Cc: Laurent Pinchart <[email protected]> > > Cc: Lucas Stach <[email protected]> > > Cc: Maarten Lankhorst <[email protected]> > > Cc: Maxime Ripard <[email protected]> > > Cc: Neil Armstrong <[email protected]> > > Cc: Rob Herring <[email protected]> > > Cc: Robert Foss <[email protected]> > > Cc: Thomas Zimmermann <[email protected]> > > Cc: [email protected] > > Cc: [email protected] > > Cc: [email protected] > > --- > > .../display/bridge/toshiba,tc358767.yaml | 18 ++++++++++++++++++ > > 1 file changed, 18 insertions(+) > > > > diff --git > > a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml > > b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml > > index 2ad0cd6dd49e0..dcf56e996ee22 100644 > > --- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml > > +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml > > @@ -98,6 +98,24 @@ properties: > > reference to a valid eDP panel input endpoint node. This port > > is > > optional, treated as DP panel if not defined > > > > + properties: > > + endpoint: > > + $ref: /schemas/media/video-interfaces.yaml# > > + unevaluatedProperties: false > > + > > + properties: > > + toshiba,pre-emphasis: > > + description: > > + Display port output Pre-Emphasis settings for both ports. > > Is this a property of the port or the endpoint?
What's the difference? Either is the same data path. The preference is custom properties in endpoint node, not port nodes. Rob
