From patchwork Tue Apr 30 13:19:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Massot X-Patchwork-Id: 793944 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 C740E171668; Tue, 30 Apr 2024 13:20:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714483235; cv=none; b=BC/UL6O4519XEBhvZu4p88UH/35jvJR9JmTchm0GUi1OPP9pDOX0+5jwM1D+CnerCMo0cZVGQOI9PG7ziJXa9Ct3WIFIeLSft4yQtBltBkCmVrL4bPwvBAdLD3/ky5XBr/p2wlbnppLcWOlQm9TLyaa198BWxP5WLXyUzFRbeiY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714483235; c=relaxed/simple; bh=voQCEBZHmym6NYAzHkS5ZCFDtC8rUCLKGC3bt56hgdQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kroVJHl68IFj4rIm9+XGNriVqTTZjEsK5l+NziSTYP37cb51FYGHsFmZefcUSEu9kOBqimDRAa3/qW7PqaZP4s66OkzCkY3lQVMql/6Gbnu61B7sUlybm3VZhz79E6zImkiUVS97g8GSPB3nwxnqGZp9rwWUGFez6j5/7Rm2+dc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=q3WE5xmA; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="q3WE5xmA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1714483232; bh=voQCEBZHmym6NYAzHkS5ZCFDtC8rUCLKGC3bt56hgdQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=q3WE5xmAc37+27fIqHPT+eTX6BPnpfRMC72p7vV7yXJPa64zpEAZezaQbV/XbTVMY QgYypHV14CLpWfl40J8YfXjYllEg8Kxc/ocpiNMUtS4EZVp8GaIxgAlG2I8RgPj7MA suW3oTvfvkBssz2Y+fs5VKf1J5KrJHi/TWeuTNKxC6vcWXeZJM2MVtisnpLWhhvqao fQTVbunpa4nBEK6TRd+t0gfr+dcBwETPgRvzVOIt+FD3lQI8LG1syLhLBDusZFxWZH J8kqmfvxv2oIH+ZcLQ6Z6KkAr4HMGwYQUUT/ROb8PhMRfo1+8sraFVJ70ErYnwJkkC CzsB6RkEnrkCQ== Received: from apertis.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 madrid.collaboradmins.com (Postfix) with ESMTPSA id 82A0C3782059; Tue, 30 Apr 2024 13:20:31 +0000 (UTC) From: Julien Massot To: linux-media@vger.kernel.org, sakari.ailus@iki.fi Cc: devicetree@vger.kernel.org, kernel@collabora.com, linux-kernel@vger.kernel.org, mchehab@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, Julien Massot , Conor Dooley Subject: [PATCH v7 1/5] dt-bindings: media: add Maxim MAX96717 GMSL2 Serializer Date: Tue, 30 Apr 2024 15:19:27 +0200 Message-ID: <20240430131931.166012-2-julien.massot@collabora.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240430131931.166012-1-julien.massot@collabora.com> References: <20240430131931.166012-1-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 MAX96717 GMSL2 Serializer. Reviewed-by: Conor Dooley Signed-off-by: Julien Massot --- Change since v6: - Remove mention to C-PHY therefore remove the bus-type property since the device only D-PHY. Change since v5: - Reverse the fallback MAX96717 can fallback to MAX96717F - Use const instead of enum for MAX96717F compatible Change since v4: - Add compatible for MAX96717 and use it as a fallback for MAX96717F - Remove extra '|' for decriptions - Reference 'i2c-gate' instead of 'i2c-controller' Change since v3: - Renamed file to maxim,max96717.yaml dropped the 'f' suffix - Added lane-polarities and bus type properties to the CSI endpoint Change since v2: - remove reg description - add data lanes min/maxItems - Use generic node name --- .../bindings/media/i2c/maxim,max96717.yaml | 157 ++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max96717.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max96717.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max96717.yaml new file mode 100644 index 000000000000..d1e8ba6e368e --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max96717.yaml @@ -0,0 +1,157 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2024 Collabora Ltd. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/maxim,max96717.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MAX96717 CSI-2 to GMSL2 Serializer + +maintainers: + - Julien Massot + +description: + The MAX96717 serializer converts MIPI CSI-2 D-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 MAX96717 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 MAX96717 can select the MIPI datatype, while the tunnel mode forward all the MIPI + data received by the serializer. + The MAX96717 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 or 6Gbps in the + forward direction and 187.5Mbps in the reverse direction. + MAX96717F only supports a fixed rate of 3Gbps in the forward direction. + +properties: + compatible: + oneOf: + - const: maxim,max96717f + - items: + - enum: + - maxim,max96717 + - 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: + 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 + + properties: + data-lanes: + minItems: 1 + maxItems: 4 + + lane-polarities: + minItems: 1 + maxItems: 5 + + 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-gate.yaml + unevaluatedProperties: false + description: + The MAX96717 will 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 3 4>; + remote-endpoint = <&sensor_out>; + }; + }; + + port@1 { + reg = <1>; + max96917f_gmsl_out: endpoint { + remote-endpoint = <&deser_gmsl_in>; + }; + }; + }; + + i2c-gate { + #address-cells = <1>; + #size-cells = <0>; + sensor@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 { + sensor_out: endpoint { + data-lanes = <1 2 3 4>; + remote-endpoint = <&max96717f_csi_in>; + }; + }; + }; + }; + }; + }; +...