nwl-dsi.yaml (5448B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Northwest Logic MIPI-DSI controller on i.MX SoCs 8 9maintainers: 10 - Guido GĂșnther <agx@sigxcpu.org> 11 - Robert Chiras <robert.chiras@nxp.com> 12 13description: | 14 NWL MIPI-DSI host controller found on i.MX8 platforms. This is a dsi bridge for 15 the SOCs NWL MIPI-DSI host controller. 16 17allOf: 18 - $ref: ../dsi-controller.yaml# 19 20properties: 21 compatible: 22 const: fsl,imx8mq-nwl-dsi 23 24 reg: 25 maxItems: 1 26 27 interrupts: 28 maxItems: 1 29 30 '#address-cells': 31 const: 1 32 33 '#size-cells': 34 const: 0 35 36 assigned-clock-parents: true 37 assigned-clock-rates: true 38 assigned-clocks: true 39 40 clocks: 41 items: 42 - description: DSI core clock 43 - description: RX_ESC clock (used in escape mode) 44 - description: TX_ESC clock (used in escape mode) 45 - description: PHY_REF clock 46 - description: LCDIF clock 47 48 clock-names: 49 items: 50 - const: core 51 - const: rx_esc 52 - const: tx_esc 53 - const: phy_ref 54 - const: lcdif 55 56 mux-controls: 57 description: 58 mux controller node to use for operating the input mux 59 60 phys: 61 maxItems: 1 62 description: 63 A phandle to the phy module representing the DPHY 64 65 phy-names: 66 items: 67 - const: dphy 68 69 power-domains: 70 maxItems: 1 71 72 resets: 73 items: 74 - description: dsi byte reset line 75 - description: dsi dpi reset line 76 - description: dsi esc reset line 77 - description: dsi pclk reset line 78 79 reset-names: 80 items: 81 - const: byte 82 - const: dpi 83 - const: esc 84 - const: pclk 85 86 ports: 87 $ref: /schemas/graph.yaml#/properties/ports 88 89 properties: 90 port@0: 91 $ref: /schemas/graph.yaml#/$defs/port-base 92 description: 93 Input port node to receive pixel data from the 94 display controller. Exactly one endpoint must be 95 specified. 96 properties: 97 endpoint@0: 98 $ref: /schemas/graph.yaml#/properties/endpoint 99 description: sub-node describing the input from LCDIF 100 101 endpoint@1: 102 $ref: /schemas/graph.yaml#/properties/endpoint 103 description: sub-node describing the input from DCSS 104 105 oneOf: 106 - required: 107 - endpoint@0 108 - required: 109 - endpoint@1 110 111 unevaluatedProperties: false 112 113 port@1: 114 $ref: /schemas/graph.yaml#/properties/port 115 description: 116 DSI output port node to the panel or the next bridge 117 in the chain 118 119 required: 120 - port@0 121 - port@1 122 123required: 124 - '#address-cells' 125 - '#size-cells' 126 - clock-names 127 - clocks 128 - compatible 129 - interrupts 130 - mux-controls 131 - phy-names 132 - phys 133 - ports 134 - reg 135 - reset-names 136 - resets 137 138unevaluatedProperties: false 139 140examples: 141 - | 142 #include <dt-bindings/clock/imx8mq-clock.h> 143 #include <dt-bindings/gpio/gpio.h> 144 #include <dt-bindings/interrupt-controller/arm-gic.h> 145 #include <dt-bindings/reset/imx8mq-reset.h> 146 147 dsi@30a00000 { 148 #address-cells = <1>; 149 #size-cells = <0>; 150 compatible = "fsl,imx8mq-nwl-dsi"; 151 reg = <0x30A00000 0x300>; 152 clocks = <&clk IMX8MQ_CLK_DSI_CORE>, 153 <&clk IMX8MQ_CLK_DSI_AHB>, 154 <&clk IMX8MQ_CLK_DSI_IPG_DIV>, 155 <&clk IMX8MQ_CLK_DSI_PHY_REF>, 156 <&clk IMX8MQ_CLK_LCDIF_PIXEL>; 157 clock-names = "core", "rx_esc", "tx_esc", "phy_ref", "lcdif"; 158 interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; 159 mux-controls = <&mux 0>; 160 power-domains = <&pgc_mipi>; 161 resets = <&src IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N>, 162 <&src IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N>, 163 <&src IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N>, 164 <&src IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N>; 165 reset-names = "byte", "dpi", "esc", "pclk"; 166 phys = <&dphy>; 167 phy-names = "dphy"; 168 169 panel@0 { 170 compatible = "rocktech,jh057n00900"; 171 reg = <0>; 172 vcc-supply = <®_2v8_p>; 173 iovcc-supply = <®_1v8_p>; 174 reset-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>; 175 port { 176 panel_in: endpoint { 177 remote-endpoint = <&mipi_dsi_out>; 178 }; 179 }; 180 }; 181 182 ports { 183 #address-cells = <1>; 184 #size-cells = <0>; 185 186 port@0 { 187 #size-cells = <0>; 188 #address-cells = <1>; 189 reg = <0>; 190 mipi_dsi_in: endpoint@0 { 191 reg = <0>; 192 remote-endpoint = <&lcdif_mipi_dsi>; 193 }; 194 }; 195 port@1 { 196 reg = <1>; 197 mipi_dsi_out: endpoint { 198 remote-endpoint = <&panel_in>; 199 }; 200 }; 201 }; 202 };