Commit 222e0a8e authored by Leonard Göhrs's avatar Leonard Göhrs Committed by Rob Herring
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dt-bindings: display: panel: mipi-dbi-spi: add spi-3wire property 



Some MIPI DBI panels support a three wire mode (clock, chip select,
bidirectional data) that can be used to ask the panel if it is already set
up by e.g. the bootloader and can thus skip the initialization.
This enables a flicker-free boot.

Signed-off-by: default avatarLeonard Göhrs <l.goehrs@pengutronix.de>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarNoralf Trønnes <noralf@tronnes.org>
Link: https://lore.kernel.org/r/20230614123222.4167460-4-l.goehrs@pengutronix.de


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 96b2b1a2

Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml

+2 −0
Original line number Diff line number Diff line
@@ -87,6 +87,8 @@ properties: 
      Logic level supply for interface signals (Vddi).

      No need to set if this is the same as power-supply.



  spi-3wire: true



required:

  - compatible

  - reg