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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Display Controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^dc@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra20-dc
+ - nvidia,tegra30-dc
+ - nvidia,tegra114-dc
+ - nvidia,tegra124-dc
+ - nvidia,tegra210-dc
+
+ - items:
+ - const: nvidia,tegra124-dc
+ - const: nvidia,tegra132-dc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: display controller pixel clock
+ - description: parent clock # optional
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: dc
+ - const: parent # optional
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: dc
+
+ interconnect-names: true
+ interconnects: true
+
+ iommus:
+ maxItems: 1
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the core power domain
+
+ memory-region: true
+
+ nvidia,head:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The number of the display controller head. This is used to setup the various
+ types of output to receive video data from the given head.
+
+ nvidia,outputs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: A list of phandles of outputs that this display controller can drive.
+
+ rgb:
+ type: object
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-dc
+ - nvidia,tegra30-dc
+ - nvidia,tegra114-dc
+ then:
+ properties:
+ interconnects:
+ items:
+ - description: window A memory client
+ - description: window B memory client
+ - description: window B memory client (vertical filter)
+ - description: window C memory client
+ - description: cursor memory client
+
+ interconnect-names:
+ items:
+ - const: wina
+ - const: winb
+ - const: winb-vfilter
+ - const: winc
+ - const: cursor
+
+ rgb:
+ description: Each display controller node has a child node, named "rgb", that represents
+ the RGB output associated with the controller.
+ type: object
+ properties:
+ nvidia,ddc-i2c-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle of an I2C controller used for DDC EDID probing
+
+ nvidia,hpd-gpio:
+ description: specifies a GPIO used for hotplug detection
+ maxItems: 1
+
+ nvidia,edid:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: supplies a binary EDID blob
+
+ nvidia,panel:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle of a display panel
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra124-dc
+ then:
+ properties:
+ interconnects:
+ minItems: 4
+ items:
+ - description: window A memory client
+ - description: window B memory client
+ - description: window C memory client
+ - description: cursor memory client
+ - description: window D memory client
+ - description: window T memory client
+
+ interconnect-names:
+ minItems: 4
+ items:
+ - const: wina
+ - const: winb
+ - const: winc
+ - const: cursor
+ - const: wind
+ - const: wint
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ dc@54200000 {
+ compatible = "nvidia,tegra20-dc";
+ reg = <0x54200000 0x00040000>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_DISP1>;
+ clock-names = "dc";
+ resets = <&tegra_car 27>;
+ reset-names = "dc";
+ };