From 222e0a8e2f8a89f41c518a43ced46e73c57a700e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Leonard=20G=C3=B6hrs?= Date: Wed, 14 Jun 2023 14:32:17 +0200 Subject: [PATCH] dt-bindings: display: panel: mipi-dbi-spi: add spi-3wire property MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Acked-by: Conor Dooley Reviewed-by: Rob Herring Reviewed-by: Noralf Trønnes Link: https://lore.kernel.org/r/20230614123222.4167460-4-l.goehrs@pengutronix.de Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml | 2 ++ 1 file changed, 2 insertions(+) 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 c07da1a..2f0238b 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 -- 2.7.4