On Fri, Mar 13, 2026 at 02:16:00PM +0800, Hermes Wu wrote: > 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]> > --- > Changes in v3: > - Fix lane-polarities: remove $ref redefinition, allow via > video-interfaces.yaml > - Improve ite,support-hdcp description to clarify FW-based HDCP behavior > - Remove descriptions repeating schema constraints > - Remove stray comment in ports required section > - Fix data-lanes spacing in example: <1 2 3 4> > - Add missing newline at end of file > - Add missing change log that Reviewed-by tag was drop in V2. > > Changes in V2: > - Drop Reviewed-by tag due to DT bindings changed. > - Add property "ite,spport-hdcp" to enable HDCP > - Add property "lane-polarities" and "clock-noncontinuous" for DSI > setting > --- > .../bindings/display/bridge/ite,it6162.yaml | 178 > +++++++++++++++++++++ > 1 file changed, 178 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml > b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml > new file mode 100644 > index > 0000000000000000000000000000000000000000..b33fd140a9932cff3ede342298488988d337477f > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml > @@ -0,0 +1,178 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/bridge/ite,it6162.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: ITE IT6162 MIPI DSI to HDMI 2.0 Bridge > + > +maintainers: > + - Hermes Wu <[email protected]> > + > +description: | > + The ITE IT6162 is a high-performance, low-power HDMI bridge that converts > + 2 MIPI DSI signals to 1 HDMI 2.0 output. It supports dual MIPI D-PHY 2.0 > + links up to 10 Gbps each (20 Gbps total), compatible with DSI-2 v2.0. > + > + The HDMI transmitter supports resolutions up to 4Kx2K@60Hz and is compliant > + with HDMI 2.0 specifications. > + > + For audio, it supports up to 8-channel LPCM via I2S (multi-line or TDM > mode), > + with optional S/PDIF or DSD (for SACD). Audio sampling rates up to 192 kHz > + are supported. > + > +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 supply > + > + ovdd-supply: > + description: I/O voltage supply > + > + ovdd1833-supply: > + description: Flexible I/O voltage supply (1.8V domain) > + > + "#sound-dai-cells": > + const: 0 > + > + ite,support-hdcp:
I don't see how this property varies per board, since it is always the same chip with the same firmware. Drop property. > + description: > Drop > > + Enables FW-based HDCP 1.4 and 2.3 negotiation. When absent, the > + bridge firmware will not attempt HDCP authentication regardless > + of sink capability. > + type: boolean > + > + 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 > + properties: > + data-lanes: true > + lane-polarities: true > + clock-noncontinuous: true Drop all three. Why did you add them? > + 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 > + properties: > + data-lanes: true > + lane-polarities: true > + clock-noncontinuous: true Drop all three > + required: > + - data-lanes > + > + port@2: > + $ref: /schemas/graph.yaml#/properties/port > + description: Audio input port > + > + port@3: > + $ref: /schemas/graph.yaml#/properties/port > + description: HDMI output port > + > + required: > + - port@1 > + > +required: > + - compatible > + - reg > + - interrupts > + - ports Best regards, Krzysztof
