1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: "http://devicetree.org/schemas/display/bridge/cdns,mhdp8546.yaml#" 5$schema: "http://devicetree.org/meta-schemas/core.yaml#" 6 7title: Cadence MHDP8546 bridge 8 9maintainers: 10 - Swapnil Jakhade <sjakhade@cadence.com> 11 - Yuti Amonkar <yamonkar@cadence.com> 12 13properties: 14 compatible: 15 enum: 16 - cdns,mhdp8546 17 - ti,j721e-mhdp8546 18 19 reg: 20 minItems: 1 21 maxItems: 2 22 items: 23 - description: 24 Register block of mhdptx apb registers up to PHY mapped area (AUX_CONFIG_P). 25 The AUX and PMA registers are not part of this range, they are instead 26 included in the associated PHY. 27 - description: 28 Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs. 29 30 reg-names: 31 minItems: 1 32 maxItems: 2 33 items: 34 - const: mhdptx 35 - const: j721e-intg 36 37 clocks: 38 maxItems: 1 39 description: 40 DP bridge clock, used by the IP to know how to translate a number of 41 clock cycles into a time (which is used to comply with DP standard timings 42 and delays). 43 44 phys: 45 maxItems: 1 46 description: 47 phandle to the DisplayPort PHY. 48 49 phy-names: 50 items: 51 - const: dpphy 52 53 power-domains: 54 maxItems: 1 55 56 interrupts: 57 maxItems: 1 58 59 ports: 60 $ref: /schemas/graph.yaml#/properties/ports 61 62 properties: 63 port@0: 64 $ref: /schemas/graph.yaml#/properties/port 65 description: 66 First input port representing the DP bridge input. 67 68 port@1: 69 $ref: /schemas/graph.yaml#/properties/port 70 description: 71 Second input port representing the DP bridge input. 72 73 port@2: 74 $ref: /schemas/graph.yaml#/properties/port 75 description: 76 Third input port representing the DP bridge input. 77 78 port@3: 79 $ref: /schemas/graph.yaml#/properties/port 80 description: 81 Fourth input port representing the DP bridge input. 82 83 port@4: 84 $ref: /schemas/graph.yaml#/properties/port 85 description: 86 Output port representing the DP bridge output. 87 88 required: 89 - port@0 90 - port@4 91 92allOf: 93 - if: 94 properties: 95 compatible: 96 contains: 97 const: ti,j721e-mhdp8546 98 then: 99 properties: 100 reg: 101 minItems: 2 102 reg-names: 103 minItems: 2 104 else: 105 properties: 106 reg: 107 maxItems: 1 108 reg-names: 109 maxItems: 1 110 111required: 112 - compatible 113 - clocks 114 - reg 115 - reg-names 116 - phys 117 - phy-names 118 - interrupts 119 - ports 120 121additionalProperties: false 122 123examples: 124 - | 125 #include <dt-bindings/interrupt-controller/arm-gic.h> 126 bus { 127 #address-cells = <2>; 128 #size-cells = <2>; 129 130 mhdp: dp-bridge@f0fb000000 { 131 compatible = "cdns,mhdp8546"; 132 reg = <0xf0 0xfb000000 0x0 0x1000000>; 133 reg-names = "mhdptx"; 134 clocks = <&mhdp_clock>; 135 phys = <&dp_phy>; 136 phy-names = "dpphy"; 137 interrupts = <GIC_SPI 614 IRQ_TYPE_LEVEL_HIGH>; 138 139 ports { 140 #address-cells = <1>; 141 #size-cells = <0>; 142 143 port@0 { 144 reg = <0>; 145 dp_bridge_input: endpoint { 146 remote-endpoint = <&xxx_dpi_output>; 147 }; 148 }; 149 150 port@4 { 151 reg = <4>; 152 dp_bridge_output: endpoint { 153 remote-endpoint = <&xxx_dp_connector_input>; 154 }; 155 }; 156 }; 157 }; 158 }; 159... 160