1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/arm,hdlcd.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Arm HDLCD display controller 8 9maintainers: 10 - Liviu Dudau <Liviu.Dudau@arm.com> 11 - Andre Przywara <andre.przywara@arm.com> 12 13description: 14 The Arm HDLCD is a display controller found on several development platforms 15 produced by ARM Ltd and in more modern of its Fast Models. The HDLCD is an 16 RGB streamer that reads the data from a framebuffer and sends it to a single 17 digital encoder (DVI or HDMI). 18 19properties: 20 compatible: 21 const: arm,hdlcd 22 23 reg: 24 maxItems: 1 25 26 interrupts: 27 maxItems: 1 28 29 clock-names: 30 const: pxlclk 31 32 clocks: 33 maxItems: 1 34 description: The input reference for the pixel clock. 35 36 memory-region: 37 maxItems: 1 38 description: 39 Phandle to a node describing memory to be used for the framebuffer. 40 If not present, the framebuffer may be located anywhere in memory. 41 42 iommus: 43 maxItems: 1 44 45 port: 46 $ref: /schemas/graph.yaml#/properties/port 47 unevaluatedProperties: false 48 description: 49 Output endpoint of the controller, connecting the LCD panel signals. 50 51additionalProperties: false 52 53required: 54 - compatible 55 - reg 56 - interrupts 57 - clocks 58 - port 59 60examples: 61 - | 62 hdlcd@2b000000 { 63 compatible = "arm,hdlcd"; 64 reg = <0x2b000000 0x1000>; 65 interrupts = <0 85 4>; 66 clocks = <&oscclk5>; 67 clock-names = "pxlclk"; 68 port { 69 hdlcd_output: endpoint { 70 remote-endpoint = <&hdmi_enc_input>; 71 }; 72 }; 73 }; 74 75 /* HDMI encoder on I2C bus */ 76 i2c { 77 #address-cells = <1>; 78 #size-cells = <0>; 79 hdmi-transmitter@70 { 80 compatible = "nxp,tda998x"; 81 reg = <0x70>; 82 port { 83 hdmi_enc_input: endpoint { 84 remote-endpoint = <&hdlcd_output>; 85 }; 86 }; 87 }; 88 }; 89... 90