From patchwork Fri Dec 8 14:33:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Massot X-Patchwork-Id: 13485449 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="iKk6ggpf" Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9FEC198C; Fri, 8 Dec 2023 06:34:35 -0800 (PST) Received: from stla-brain-8255-1.home (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: jmassot) by madras.collabora.co.uk (Postfix) with ESMTPSA id 5A42666073C0; Fri, 8 Dec 2023 14:34:34 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1702046074; bh=IyYv+ysfHKxKHPUcZ0tglDcBbqy48STOs63+zb3HPi0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iKk6ggpf7J/o2vSIdBZUEaPD0oBlSzgimmveYvtp36f2/mTiX/76jp1NhDlSrHWak G7DFNY8SXmeFaMCTMKl5W755moBFQLR0iFLZbMFzso+vUTBQJU3Tm8FnfaTBlsDJxV 9d6p/mBAJDhjd6+JxJJLv561K4ePCPtfM/FKxcDARjlQ56+RovZ2l7gen/6dxJqyIJ pZMeOuCvMlrLVSWwSGTlQxo4gPaOPUANB9QWoITyNFbe3ZDx6xGAQMgNrjTK/YiTfg j3Kc2BLHBDsJ+0C4G4+fkAf9s4nugWCjmi1qlXE4AEZSJUu6/TWMjtZ7ZD82gfK2hV oy4h941fe/wKw== From: Julien Massot To: devicetree@vger.kernel.org, linux-media@vger.kernel.org Cc: kernel@collabora.com, Julien Massot Subject: [PATCH v2 2/4] dt-bindings: media: add Maxim MAX96717F GMSL2 Serializer Date: Fri, 8 Dec 2023 15:33:57 +0100 Message-ID: <20231208143359.469049-3-julien.massot@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231208143359.469049-1-julien.massot@collabora.com> References: <20231208143359.469049-1-julien.massot@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add DT bindings for Maxim MAX96717F GMSL2 Serializer. Signed-off-by: Julien Massot --- .../bindings/media/i2c/maxim,max96717f.yaml | 144 ++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml new file mode 100644 index 000000000000..ae649c3041a6 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2023 Collabora Ltd. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/maxim,max96717f.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GMSL2 to CSI-2 Serializer + +maintainers: + - Julien Massot + +description: | + The MAX96717F serializer converts MIPI CSI-2 D-PHY or C-PHY formatted input + into GMSL2 serial outputs. The device allows the GMSL2 link to + simultaneously transmit bidirectional control-channel data while forward + video transmissions are in progress. The MAX96717F can connect to one + remotely located deserializer using industry-standard coax or STP + interconnects. The device cans operate in pixel or tunnel mode. In pixel mode + the MAX96717F can select the MIPI datatype, while the tunnel mode forward all the MIPI + data received by the serializer. + The MAX96717F supports Reference Over Reverse (channel), + to generate a clock output for the sensor from the GMSL reverse channel. + + The GMSL2 serial link operates at a fixed rate of 3Gbps in the + forward direction and 187.5Mbps in the reverse direction. + +properties: + compatible: + const: maxim,max96717f + + '#gpio-cells': + const: 2 + description: + First cell is the GPIO pin number, second cell is the flags. The GPIO pin + number must be in range of [0, 10]. + + gpio-controller: true + + '#clock-cells': + const: 0 + + reg: + description: I2C device address + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: CSI-2 Input port + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + required: + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/properties/port + unevaluatedProperties: false + description: GMSL Output port + + required: + - port@1 + + i2c-gate: + $ref: /schemas/i2c/i2c-controller.yaml + unevaluatedProperties: false + description: | + The MAX96717F will pass through and forward the I2C requests from the + incoming GMSL2 link. Therefore it supports an i2c-gate + subnode to configure a sensor. + +required: + - compatible + - reg + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + serializer: serializer@40 { + compatible = "maxim,max96717f"; + reg = <0x40>; + gpio-controller; + #gpio-cells = <2>; + #clock-cells = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + max96717f_csi_in: endpoint { + data-lanes = <1 2>; + lane-polarities = <1 0 1>; + remote-endpoint = <&vd5661_csi>; + }; + }; + + port@1 { + reg = <1>; + max96917f_gmsl_out: endpoint { + remote-endpoint = <&max96714_gmsl_in>; + }; + }; + }; + + i2c-gate { + #address-cells = <1>; + #size-cells = <0>; + vd5661@10 { + compatible = "st,st-vgxy61"; + reg = <0x10>; + reset-gpios = <&serializer 0 GPIO_ACTIVE_LOW>; + clocks = <&serializer>; + VCORE-supply = <&v1v2>; + VDDIO-supply = <&v1v8>; + VANA-supply = <&v2v8>; + port { + vd5661_csi: endpoint { + data-lanes = <1 2>; + remote-endpoint = <&max96717f_csi_in>; + }; + }; + }; + }; + }; + }; +...