This chip receives MIPI DSI input and outputs HDMI, and is commonly connected to SoCs via I2C and DSI.
Signed-off-by: Pet Weng <pet.w...@ite.com.tw> --- .../bindings/display/bridge/ite,it61620.yaml | 138 +++++++++++++++++++++ 1 file changed, 138 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml new file mode 100644 index 0000000000000000000000000000000000000000..ff8ff390a1c0c31bb05ba0e237490cff2942cd05 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml @@ -0,0 +1,138 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ite,it61620.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ITE IT61620 MIPI DSI to HDMI Bridge + +maintainers: + - Pet Weng <pet.w...@ite.com.tw> + +description: | + The ITE IT61620 is a high-performance, low-power HDMI bridge that converts + MIPI DSI input to HDMI 1.4b TMDS output. It supports up to 4 lanes of MIPI + D-PHY 2.0 input at 2.5Gbps per lane (10Gbps total), compatible with DSI-2 v2.0. + + The HDMI transmitter side supports up to 4Kx2K@30Hz resolutions, and is + compliant with HDMI 1.4b and HDCP 1.4. + + For audio, the IT61620 supports up to 8-channel LPCM via I2S (multi-line or + TDM mode), with optional S/PDIF or DSD (for SACD). It supports audio + sampling rates up to 192kHz. + +allOf: + - $ref: /schemas/sound/dai-common.yaml# + +properties: + compatible: + const: ite,it61620 + + reg: + maxItems: 1 + + interrupts-extended: + maxItems: 1 + description: interrupt specifier of INT pin + + reset-gpios: + maxItems: 1 + description: gpio specifier of RESET pin + + ivdd-supply: + description: core voltage + + ovdd-supply: + description: I/O voltage + + ovdd1833-supply: + description: flexible I/O votage + + pinctrl-names: + items: + - const: default + + pinctrl-0: + maxItems: 1 + + "#sound-dai-cells": + const: 0 + + dsi-lanes: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Number of DSI input lanes used (1, 2 or 4) + minimum: 1 + maximum: 4 + default: 4 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + description: A port node pointing to DSI host port node + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + description: Video port for HDMI output + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - interrupts-extended + - reset-gpios + - ivdd-supply + - ovdd-supply + - ovdd1833-supply + - ports + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + hdmibrdg: ite61620@58 { + compatible = "ite,it61620"; + reg = <0x58>; + #sound-dai-cells = <0>; + interrupts-extended = <&pio 128 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&it61620_pins>; + reset-gpios = <&pio 127 GPIO_ACTIVE_LOW>; + ivdd-supply = <&pp1000_hdmi_x>; + ovdd-supply = <&pp3300_vio28_x>; + ovdd1833-supply = <&pp1800_vcamio_x>; + dsi-lanes = <4>; + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + it61620_dsi_in: endpoint { + remote-endpoint = <&dsi_out>; + }; + }; + + port@1 { + reg = <1>; + it61620_hdmi_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; + }; -- 2.34.1
