From nobody Tue Oct 7 07:20:53 2025 Received: from ironport.ite.com.tw (219-87-157-213.static.tfn.net.tw [219.87.157.213]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9CCD01C28E; Mon, 14 Jul 2025 03:18:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=219.87.157.213 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752463126; cv=none; b=U5fgRPSEQXo5udRCq6/eoXqKGS7XnzWxVD5OlUEpTM5QxQ8gOtE9q/ZeVlhEkiHlVtOxM3eA4OojcnFqXTZPZTfw/JF8aUV+tUkq4QIHQwnJ5ufgcoFuHcDu50dY/78QF8rdWi7SVBxEa7krMrkLoQgAnJT93PuzHYnhfUOGyOo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752463126; c=relaxed/simple; bh=S+k3JFNx6WEPslDNIQleb7IOdje4oFPzM9acWqDJ1to=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=JelCwPJUXnfaiG7/p7G9VpsRrndpI9v2YyejSQtdSqsYHywQF61lOsnu0v3rCMmA1QwRxC4w+WB3yf5G4ouGGpBiWcBi8Jc1QAhOjYR8t4BbERJolYqqb+sM04N6H2ReYnAoW8xu5A/Ki5O3A5lbDuM6Fdl5UFKIj8+ayZh72XU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ite.com.tw; spf=pass smtp.mailfrom=ite.com.tw; dkim=pass (2048-bit key) header.d=ite.com.tw header.i=@ite.com.tw header.b=FPEQSb0i; arc=none smtp.client-ip=219.87.157.213 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ite.com.tw Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ite.com.tw Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ite.com.tw header.i=@ite.com.tw header.b="FPEQSb0i" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ite.com.tw; s=dkim; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=Vp72IOwJz5lZsziOOZo4RHilItGxQQe6XXbK9dG32tE=; b=FPEQSb0i3TGC2k2mpcYGH13OZNsoO0kKlUPgpsAxan8C7kqHkuwESaq5 4ZDmFnSwfLka+TjTN3HuTlzbochavETU4/BCtx0qXGkcYMj0pN6FfBof5 cmhXyJ6nZo+NHG8i7moXK+XmHpOCDiWPmcnXLST4SmcqcjsR88rSGI/7J vWFtTvvXvtAsRBwUVTP6X6sXxDYGRLpp1IoUWY7bx5b3n+/B3/r2pWx24 3ILqX0tlwIKQBnWfN7b5XH/QBw18t8U5EDiS8MxcpT2HakDKS3Cfl8pq9 0QaME2MJywWBKj1ic0WArHsKHNXz5cFFKlQIdi7mJ5SEa++w//CX9kBiz w==; X-CSE-ConnectionGUID: nOaJW3VISzyNeQOWZEwX3w== X-CSE-MsgGUID: qGqotRWrTai2egIul78qlg== Received: from unknown (HELO mse.ite.com.tw) ([192.168.35.30]) by ironport.ite.com.tw with ESMTP; 14 Jul 2025 11:15:22 +0800 Received: from CSBMAIL1.internal.ite.com.tw (CSBMAIL1.internal.ite.com.tw [192.168.65.58]) by mse.ite.com.tw with ESMTP id 56E3FI69091131; Mon, 14 Jul 2025 11:15:18 +0800 (+08) (envelope-from Pet.Weng@ite.com.tw) Received: from [127.0.1.1] (192.168.72.15) by CSBMAIL1.internal.ite.com.tw (192.168.65.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 14 Jul 2025 11:15:17 +0800 From: Pet Weng Date: Mon, 14 Jul 2025 11:14:32 +0800 Subject: [PATCH 1/3] dt-binding: display: Add a device tree binding for the ITE IT61620 MIPI DSI to HDMI bridge Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20250714-it61620-0714-v1-1-3761164d0b98@ite.com.tw> References: <20250714-it61620-0714-v1-0-3761164d0b98@ite.com.tw> In-Reply-To: <20250714-it61620-0714-v1-0-3761164d0b98@ite.com.tw> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , Hermes Wu , Kenneth Hung , Pet Weng , Pin-yen Lin X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1752462909; l=4482; i=pet.weng@ite.com.tw; s=20250702; h=from:subject:message-id; bh=S+k3JFNx6WEPslDNIQleb7IOdje4oFPzM9acWqDJ1to=; b=5UFi44n7tDt/PAZ1NRlQY9ZluZmMaLpyCeKFb9EXcd9AsTKBxOE6iGyyItULQlR6Mn5dFAYs+ mc7xMe1iyGVC6J1lQU+7c2AV+W+gvGlXYHkhsV6KFKQBjWnF/uLE1D7 X-Developer-Key: i=pet.weng@ite.com.tw; a=ed25519; pk=wd08uBtTLb93x2ixbKVNsxiZPdMh1Ov4z5klodh2bqo= X-ClientProxiedBy: CSBMAIL1.internal.ite.com.tw (192.168.65.58) To CSBMAIL1.internal.ite.com.tw (192.168.65.58) X-TM-SNTS-SMTP: DAB28E45DFC27A003B88E63C16F971EC3E76C4EAB78125C4F6B1FA0022E07CFB2002:8 X-MAIL: mse.ite.com.tw 56E3FI69091131 This chip receives MIPI DSI input and outputs HDMI, and is commonly connected to SoCs via I2C and DSI. Signed-off-by: Pet Weng --- .../bindings/display/bridge/ite,it61620.yaml | 138 +++++++++++++++++= ++++ 1 file changed, 138 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it61620.y= aml b/Documentation/devicetree/bindings/display/bridge/ite,it61620.yaml new file mode 100644 index 0000000000000000000000000000000000000000..ff8ff390a1c0c31bb05ba0e2374= 90cff2942cd05 --- /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 + +description: | + The ITE IT61620 is a high-performance, low-power HDMI bridge that conver= ts + MIPI DSI input to HDMI 1.4b TMDS output. It supports up to 4 lanes of MI= PI + 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 + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + hdmibrdg: ite61620@58 { + compatible =3D "ite,it61620"; + reg =3D <0x58>; + #sound-dai-cells =3D <0>; + interrupts-extended =3D <&pio 128 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&it61620_pins>; + reset-gpios =3D <&pio 127 GPIO_ACTIVE_LOW>; + ivdd-supply =3D <&pp1000_hdmi_x>; + ovdd-supply =3D <&pp3300_vio28_x>; + ovdd1833-supply =3D <&pp1800_vcamio_x>; + dsi-lanes =3D <4>; + status =3D "okay"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + it61620_dsi_in: endpoint { + remote-endpoint =3D <&dsi_out>; + }; + }; + + port@1 { + reg =3D <1>; + it61620_hdmi_out: endpoint { + remote-endpoint =3D <&hdmi_connect= or_in>; + }; + }; + }; + }; + }; --=20 2.34.1