On Fri, Jun 21, 2024 at 05:53:53PM +0200, Marek Vasut wrote: > 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 <ma...@denx.de> > --- > Cc: Andrzej Hajda <andrzej.ha...@intel.com> > Cc: Conor Dooley <conor...@kernel.org> > Cc: Daniel Vetter <dan...@ffwll.ch> > Cc: David Airlie <airl...@gmail.com> > Cc: Jernej Skrabec <jernej.skra...@gmail.com> > Cc: Jonas Karlman <jo...@kwiboo.se> > Cc: Krzysztof Kozlowski <krzk...@kernel.org> > Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com> > Cc: Lucas Stach <l.st...@pengutronix.de> > Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com> > Cc: Maxime Ripard <mrip...@kernel.org> > Cc: Neil Armstrong <neil.armstr...@linaro.org> > Cc: Rob Herring <r...@kernel.org> > Cc: Robert Foss <rf...@kernel.org> > Cc: Thomas Zimmermann <tzimmerm...@suse.de> > Cc: devicet...@vger.kernel.org > Cc: dri-devel@lists.freedesktop.org > Cc: ker...@dh-electronics.com > --- > V2: - Fix the type to u8 array > - Fix the enum items to match what they represent > --- > .../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..6287eb2b40908 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.
Why here and not in the port nodes? > + $ref: /schemas/types.yaml#/definitions/uint8-array > + minItems: 2 > + maxItems: 2 > + items: > + enum: > + - 0 # No pre-emphasis > + - 1 # 3.5dB pre-emphasis > + - 2 # 6dB pre-emphasis I'd love to say please make this -bB and put this in units, but that'd require it being a string.. > + > oneOf: > - required: > - port@0 > -- > 2.43.0 >
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