From patchwork Fri Sep 10 18:41:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 12485805 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B83CC433EF for ; Fri, 10 Sep 2021 18:46:00 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D299B61209 for ; Fri, 10 Sep 2021 18:45:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D299B61209 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ytP/gV+pToRaSaqZsIYQ65MsU6eQDSXaaA11lcNrDgQ=; b=ROPDR1WH+tAaWj pB6A/I0O607SzKNt/k4jbCE1HwSw5DGjTLek9TI+Gqp8C1ea0eHoLEiyteW24rOzRx/E+tV2z7gyA 3Zb+zoCPlwlsFDXv61jqCYSgWf18Qp50D1sSTSxUoM04o+NNA2rmSfikx7UbKcHTFxZJhEd/cabcu n1TzBgz8g5L0WgkRXRvoDR9hkRQuIyd/5Nfmkb79HMGATzfwrSTL6l9grHx1PSROdL0gTlB0HhhUE i0+08y+4sdMbPKOOC9AcN3oQxpYqhNjsWhmmd3o6HpEMAb80LYCErPaap092h7q93ARAC3WYZkQid rrygQCD9xD8tWT+VA4Mw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mOlUn-00DMOa-Uw; Fri, 10 Sep 2021 18:43:30 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mOlTj-00DLtf-RX; Fri, 10 Sep 2021 18:42:25 +0000 Received: (Authenticated sender: paul.kocialkowski@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id A4711240005; Fri, 10 Sep 2021 18:42:20 +0000 (UTC) From: Paul Kocialkowski To: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-clk@vger.kernel.org, linux-staging@lists.linux.dev Cc: Yong Deng , Mauro Carvalho Chehab , Rob Herring , Maxime Ripard , Sakari Ailus , Hans Verkuil , Chen-Yu Tsai , Jernej Skrabec , Paul Kocialkowski , Greg Kroah-Hartman , Helen Koike , Laurent Pinchart , Thomas Petazzoni , Rob Herring Subject: [PATCH 05/22] dt-bindings: media: sun6i-a31-csi: Add MIPI CSI-2 input port Date: Fri, 10 Sep 2021 20:41:30 +0200 Message-Id: <20210910184147.336618-6-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210910184147.336618-1-paul.kocialkowski@bootlin.com> References: <20210910184147.336618-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210910_114224_225183_BAF715C6 X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The A31 CSI controller supports two distinct input interfaces: parallel and an external MIPI CSI-2 bridge. The parallel interface is often connected to a set of hardware pins while the MIPI CSI-2 bridge is an internal FIFO-ish link. As a result, these two inputs are distinguished as two different ports. Note that only one of the two may be present on a controller instance. For example, the V3s has one controller dedicated to MIPI-CSI2 and one dedicated to parallel. Update the binding with an explicit ports node that holds two distinct port nodes: one for parallel input and one for MIPI CSI-2. This is backward-compatible with the single-port approach that was previously taken for representing the parallel interface port, which stays enumerated as fwnode port 0. Note that additional ports may be added in the future, especially to support feeding the CSI controller's output to the ISP. Signed-off-by: Paul Kocialkowski Reviewed-by: Rob Herring Acked-by: Maxime Ripard --- .../media/allwinner,sun6i-a31-csi.yaml | 75 +++++++++++++++---- 1 file changed, 62 insertions(+), 13 deletions(-) diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml index 8b568072a069..f4a686b77a38 100644 --- a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml +++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml @@ -61,6 +61,49 @@ properties: additionalProperties: false + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + description: Parallel input port, connect to a parallel sensor + + properties: + reg: + const: 0 + + endpoint: + $ref: video-interfaces.yaml# + unevaluatedProperties: false + + properties: + bus-width: + enum: [ 8, 10, 12, 16 ] + + pclk-sample: true + hsync-active: true + vsync-active: true + + required: + - bus-width + + additionalProperties: false + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + description: MIPI CSI-2 bridge input port + + properties: + reg: + const: 1 + + endpoint: + $ref: video-interfaces.yaml# + unevaluatedProperties: false + + additionalProperties: false + required: - compatible - reg @@ -89,19 +132,25 @@ examples: "ram"; resets = <&ccu RST_BUS_CSI>; - port { - /* Parallel bus endpoint */ - csi1_ep: endpoint { - remote-endpoint = <&adv7611_ep>; - bus-width = <16>; - - /* - * If hsync-active/vsync-active are missing, - * embedded BT.656 sync is used. - */ - hsync-active = <0>; /* Active low */ - vsync-active = <0>; /* Active low */ - pclk-sample = <1>; /* Rising */ + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + /* Parallel bus endpoint */ + csi1_ep: endpoint { + remote-endpoint = <&adv7611_ep>; + bus-width = <16>; + + /* + * If hsync-active/vsync-active are missing, + * embedded BT.656 sync is used. + */ + hsync-active = <0>; /* Active low */ + vsync-active = <0>; /* Active low */ + pclk-sample = <1>; /* Rising */ + }; }; }; };