From: Hermes Wu <[email protected]> Add device tree binding documentation for the ITE IT6162 MIPI DSI to HDMI 2.0 bridge chip. The IT6162 is an I2C-controlled bridge that supports the following configurations:
- Single MIPI DSI input: up to 4K @ 30Hz - Dual MIPI DSI input (combined): up to 4K @ 60Hz The chip also supports up to 8-channel audio output via 4 I2S data channels. Signed-off-by: Hermes Wu <[email protected]> --- .../bindings/display/bridge/ite,it6162.yaml | 156 +++++++++++++++++++++ 1 file changed, 156 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml new file mode 100644 index 0000000000000000000000000000000000000000..31f809a83c305447a152e14b20cb39ef1f816911 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml @@ -0,0 +1,156 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ite,it6162.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ITE IT6162 MIPI DSI to HDMI2.0 Bridge + +maintainers: + - Hermes Wu <[email protected]> + +description: | + The ITE IT6162 is a high-performance, low-power HDMI bridge that converts + 2 MIPI DSI signal to 1 HDMI2.0. It supports 2 MIPI D-PHY 2.0 up to 10Gbps + each DSI port (20Gbps total), compatible with DSI-2 v2.0. + + The HDMI transmitter side supports up to 4Kx2K@60Hz resolutions, and is + compliant with HDMI2.0. + + 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,it6162 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + ivdd-supply: + description: core voltage + + ovdd-supply: + description: I/O voltage + + ovdd1833-supply: + description: flexible I/O voltage + + "#sound-dai-cells": + const: 0 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Input port for MIPI DSI-0 + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + required: + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Input port for MIPI DSI-1 + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + required: + - data-lanes + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Audio input port (I2S) + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: Output port for HDMI output + + required: + - port@1 + +required: + - compatible + - reg + - interrupts + - ports + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + bridge@58 { + compatible = "ite,it6162"; + reg = <0x58>; + #sound-dai-cells = <0>; + interrupt-parent = <&pio>; + interrupts = <128 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&it6162_pins>; + reset-gpios = <&pio 127 GPIO_ACTIVE_LOW>; + ivdd-supply = <&pp1000_hdmi_x>; + ovdd-supply = <&pp3300_vio28_x>; + ovdd1833-supply = <&pp1800_vcamio_x>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + it6162_dsi0: endpoint { + data-lanes = <0 1 2 3>; + remote-endpoint = <&dsi_0_out>; + }; + }; + + port@1 { + reg = <1>; + it6162_dsi1: endpoint { + data-lanes = <0 1 2 3>; + remote-endpoint = <&dsi_1_out>; + }; + }; + + port@2 { + reg = <2>; + it6162_audio_in: endpoint { + remote-endpoint = <&i2s0_out>; + }; + }; + + port@3 { + reg = <3>; + it6162_hdmi_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; + }; -- 2.34.1
