diff mbox series

[v2,3/8] dt-bindings: display: panel: mipi-dbi-spi: add spi-3wire property

Message ID 20230614123222.4167460-4-l.goehrs@pengutronix.de
State New
Headers
Series ARM: dts: stm32: lxa-tac: add Linux Automation GmbH TAC |

Commit Message

Leonard Göhrs June 14, 2023, 12:32 p.m. UTC 
  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: Leonard Göhrs <l.goehrs@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml   | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
index c07da1a9e6288..2f0238b770eba 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
@@ -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