From patchwork Fri Dec 16 14:37:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 635050 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 214D3C001B2 for ; Fri, 16 Dec 2022 14:38:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231224AbiLPOi2 (ORCPT ); Fri, 16 Dec 2022 09:38:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231288AbiLPOh7 (ORCPT ); Fri, 16 Dec 2022 09:37:59 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DDD35EDCA; Fri, 16 Dec 2022 06:37:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1671201451; x=1702737451; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FZy1RXcVK/2x+hEiHp355FgRq9Aa9qrbXPuFKkwSAW0=; b=aqjSIsO65c3c1PHdOhShzdyU3uV9ZaNVFyU6o5o17mrwRYLlFDhW7nUP gk0lD9uFnt6LOqXYLc4W2FmDMcIoXXOqgHAZmCXqoeoRLSu7YCXyXNncE NYIBICZQC3bI/qZZxX9ch5FaZn4m0p6V9g42fA7bA13drbqgVuuQbMFxS KGTXuQS+B20QfkSUc5r20RCOF/INeaWupLY5KBPILOpBwhlxE42CFwV2p b6M6GXC5XXCHaMpB5olzUI8yGflkqyzFljIg+dwQ/7xzim48obsmkUpBU K76Wy7eOFM1ZbFkIwAA9Gqhu5Kd1wjLcTsI0IA7jwRLkKk56QKAHtcxE4 A==; X-IronPort-AV: E=Sophos;i="5.96,249,1665471600"; d="scan'208";a="128506511" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 16 Dec 2022 07:37:27 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Fri, 16 Dec 2022 07:37:26 -0700 Received: from ROB-ULT-M18282.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.16 via Frontend Transport; Fri, 16 Dec 2022 07:37:24 -0700 From: Eugen Hristev To: CC: , , , , Eugen Hristev , Luis Oliveira Subject: [PATCH v5 1/4] dt-bindings: media: Document bindings for DW MIPI CSI-2 Host Date: Fri, 16 Dec 2022 16:37:14 +0200 Message-ID: <20221216143717.1002015-2-eugen.hristev@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221216143717.1002015-1-eugen.hristev@microchip.com> References: <20221216143717.1002015-1-eugen.hristev@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add bindings for Synopsys DesignWare MIPI CSI-2 host. Signed-off-by: Luis Oliveira [eugen.hristev@microchip.com: reworked binding, converted to yaml] Signed-off-by: Eugen Hristev --- .../bindings/media/snps,dw-csi.yaml | 149 ++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/snps,dw-csi.yaml diff --git a/Documentation/devicetree/bindings/media/snps,dw-csi.yaml b/Documentation/devicetree/bindings/media/snps,dw-csi.yaml new file mode 100644 index 000000000000..439eadc8e517 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,dw-csi.yaml @@ -0,0 +1,149 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/snps,dw-csi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synopsys DesignWare CSI-2 Host controller (csi2host) + +maintainers: + - Eugen Hristev + +description: + CSI2HOST is used to receive image coming from an MIPI CSI-2 compatible + camera. It will convert the incoming CSI-2 stream into a dedicated + interface called the Synopsys IDI (Image Data Interface). + This interface is a 32-bit SoC internal only, and can be assimilated + with a CSI-2 interface. + +properties: + compatible: + const: snps,dw-csi + + reg: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + description: + CSI2HOST can have two clocks connected. One clock is the + peripheral clock for the inside functionality of the hardware block. + This is named 'perclk'. The second clock can be the phy clock, + which is used to clock the phy via an internal link. + This clock is named 'phyclk', phy clock. + items: + - const: perclk + - const: phyclk + + phys: + maxItems: 1 + description: MIPI D-PHY + + phy-names: + items: + - const: dphy + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: + Input port node, single endpoint describing the input port. + + properties: + endpoint: + $ref: video-interfaces.yaml# + unevaluatedProperties: false + description: Endpoint connected to input device + + properties: + bus-type: + const: 4 + + data-lanes: + minItems: 1 + maxItems: 4 + items: + maximum: 4 + + clock-lanes: + maxItems: 1 + + remote-endpoint: true + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: + Output port node, single endpoint describing the output port. + + properties: + endpoint: + unevaluatedProperties: false + $ref: video-interfaces.yaml# + description: Endpoint connected to output device + + properties: + bus-type: + const: 4 + + remote-endpoint: true + + required: + - port@0 + - port@1 + +additionalProperties: false + +required: + - compatible + - ports + +examples: + - | + csi2: csi2@3000 { + compatible = "snps,dw-csi"; + reg = <0x03000 0x7FF>; + phys = <&mipi_dphy_rx>; + phy-names = "dphy"; + resets = <&dw_rst 1>; + interrupts = <2>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + csi_ep1: endpoint { + bus-type = <4>; /* MIPI CSI2 D-PHY */ + remote-endpoint = <&camera_1>; + data-lanes = <1 2>; + clock-lanes = <0>; + }; + }; + + port@1 { + reg = <1>; + + csi_ep2: endpoint { + remote-endpoint = <&idi_receiver>; + bus-type = <4>; + }; + }; + }; + }; + +...