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@ite.com.tw>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
.../bindings/display/bridge/ite,it61620.yaml | 142 +++++++++++++++++++++
1 file changed, 142 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..e195d192f6b1a2d092b3745e3e7f62b8b1d2d8ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml
@@ -0,0 +1,142 @@
+# 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@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:
+ 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
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ required:
+ - data-lanes
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port for HDMI output
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Audio input port (I2S)
+
+ 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>;
+
+ bridge@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>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ it61620_audio_in: endpoint {
+ remote-endpoint = <&i2s0_out>;
+ };
+ };
+ };
+ };
+ };
--
2.34.1On 13/03/2026 07:48, Pet Weng wrote: > 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@ite.com.tw> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> > --- > .../bindings/display/bridge/ite,it61620.yaml | 142 +++++++++++++++++++++ > 1 file changed, 142 insertions(+) This is almost the same as ite,it6162. Almost the same binding, same description. Also google finds nothing for ite,it61620. Looks like some duplicate and your cover letter does not explain here anything. Best regards, Krzysztof
Hi Krzysztof, > > On 13/03/2026 07:48, Pet Weng wrote: > > 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@ite.com.tw> > > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> > > --- > > .../bindings/display/bridge/ite,it61620.yaml | 142 +++++++++++++++++++++ > > 1 file changed, 142 insertions(+) > > > This is almost the same as ite,it6162. Almost the same binding, same > description. Also google finds nothing for ite,it61620. > > Looks like some duplicate and your cover letter does not explain here > anything. > IT61620 is a variant of IT6162. The main differences are: - IT61620 supports only a single MIPI DSI input port, while IT6162 supports dual MIPI DSI ports. - IT61620 does not include the internal MCU present in IT6162. Because of these architectural differences, IT61620 uses a separate compatible string even though the external interfaces and bindings are largely similar. I will update the binding description and cover letter to clarify these differences > Best regards, > Krzysztof Best regards, Pet Weng
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