The i.MX8MP contains two syscon registers which are responsible for configuring the on-SoC DPI-to-LVDS serializer. Add DT binding which represents this serializer as a bridge.
Acked-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Marek Vasut marex@denx.de Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: Lucas Stach l.stach@pengutronix.de Cc: Maxime Ripard maxime@cerno.tech Cc: Peng Fan peng.fan@nxp.com Cc: Rob Herring robh+dt@kernel.org Cc: Robby Cai robby.cai@nxp.com Cc: Robert Foss robert.foss@linaro.org Cc: Sam Ravnborg sam@ravnborg.org Cc: Thomas Zimmermann tzimmermann@suse.de Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org --- V2: - Consistently use fsl,imx8mp-ldb as compatible - Drop items: from compatible: - Replace minItems with maxItems in clocks: - Drop quotes from clock-names const: ldb - Rename syscon to fsl,syscon - Use generic name of ldb-lvds in example V3: - Add AB from Sam - Consistently use MX8MP --- .../bindings/display/bridge/nxp,ldb.yaml | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml new file mode 100644 index 000000000000..9c1807f2ae43 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/nxp,ldb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX8MP DPI to LVDS bridge chip + +maintainers: + - Marek Vasut marex@denx.de + +description: | + The i.MX8MP contains two syscon registers which are responsible + for configuring the on-SoC DPI-to-LVDS serializer. This describes + those registers as bridge within the DT. + +properties: + compatible: + const: fsl,imx8mp-ldb + + clocks: + maxItems: 1 + + clock-names: + const: ldb + + fsl,syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle to media block controller. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-A output (panel or bridge). + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-B output (panel or bridge). + + required: + - port@0 + - port@1 + +required: + - compatible + - clocks + - fsl,syscon + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/imx8mp-clock.h> + + bridge { + compatible = "fsl,imx8mp-ldb"; + clocks = <&clk IMX8MP_CLK_MEDIA_LDB>; + clock-names = "ldb"; + fsl,syscon = <&media_blk_ctrl>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + ldb_from_lcdif2: endpoint { + remote-endpoint = <&lcdif2_to_ldb>; + }; + }; + + port@1 { + reg = <1>; + + ldb_lvds_ch0: endpoint { + remote-endpoint = <&ldb_to_lvdsx4panel>; + }; + }; + + port@2 { + reg = <2>; + + ldb_lvds_ch1: endpoint { + }; + }; + }; + };