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Message-ID: <20250828-it61620-0714-v2-1-586f5934d5f8@ite.com.tw>
Date: Thu, 28 Aug 2025 12:01:18 +0800
From: Pet Weng <pet.weng@....com.tw>
To: Andrzej Hajda <andrzej.hajda@...el.com>,
Neil Armstrong
<neil.armstrong@...aro.org>,
Robert Foss <rfoss@...nel.org>,
Laurent Pinchart
<Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>,
Jernej
Skrabec <jernej.skrabec@...il.com>,
Maarten Lankhorst
<maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Rob Herring <robh@...nel.org>,
Krzysztof
Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Hermes Wu <hermes.Wu@....com.tw>,
Kenneth
Hung <kenneth.Hung@....com.tw>,
Pet Weng <pet.weng@....com.tw>, Pin-yen Lin
<treapking@...gle.com>
Subject: [PATCH v2 1/3] dt-binding: display: Add ITE IT61620 MIPI DSI to
HDMI bridge
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.weng@....com.tw>
---
.../bindings/display/bridge/ite,it61620.yaml | 143 +++++++++++++++++++++
1 file changed, 143 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..dd8a54a1e0aa9bbbd9d02e68398bb5df65b821a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml
@@ -0,0 +1,143 @@
+# 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.weng@....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@...z 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:
+ 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
+
+ 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
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes: true
+
+ required:
+ - data-lanes
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port for HDMI output
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - 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>;
+
+ ite61620@58 {
+ compatible = "ite,it61620";
+ reg = <0x58>;
+ #sound-dai-cells = <0>;
+ interrupt-parent = <&pio>;
+ interrupts = <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>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ it61620_dsi_in: endpoint {
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ it61620_hdmi_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+ };
+ };
+ };
+ };
--
2.34.1
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