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Tue, 17 Apr 2018 09:11:30 -0400 Received: from mail-he1eur01on0103.outbound.protection.outlook.com ([104.47.0.103]:21376 "EHLO EUR01-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753363AbeDQNL1 (ORCPT ); Tue, 17 Apr 2018 09:11:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axentia.se; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=KAX+P1I6sENbJLtOGGHQ+2tzE4V3RpXFMiPB1KfwWkQ=; b=YPH5cDVOAQowr0Lka6+G3wyDz35G37L2JStZVBAAu3z5R4LCchvjyS5zyHtoITvvVOs/H3oUROfLVvr3MxoNbYLq/JPMx30Zy83AM4a9gSDYWNsRPE8QJAxRoAU6HhVkJSL4FWo9IjFUZnWTY1oR1npZgSsem1lnl+hLxnUmkBM= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; Received: from orc.pedanet (85.226.244.23) by HE1PR0202MB2778.eurprd02.prod.outlook.com (2603:10a6:3:e8::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.675.14; Tue, 17 Apr 2018 13:11:23 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Cc: Peter Rosin , David Airlie , Rob Herring , Mark Rutland , Nicolas Ferre , Alexandre Belloni , Boris Brezillon , Daniel Vetter , Gustavo Padovan , Sean Paul , Laurent Pinchart , Russell King - ARM Linux , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/6] dt-bindings: display: atmel: optional video-interface of endpoints Date: Tue, 17 Apr 2018 15:10:48 +0200 Message-Id: <20180417131052.16336-3-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180417131052.16336-1-peda@axentia.se> References: <20180417131052.16336-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: HE1PR05CA0270.eurprd05.prod.outlook.com (2603:10a6:3:fc::22) To HE1PR0202MB2778.eurprd02.prod.outlook.com (2603:10a6:3:e8::20) X-MS-PublicTrafficType: Email X-Microsoft-Antispam: UriScan:; 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This can happen e.g. if not all RGB pins are routed on the PCB; the driver has no way of knowing this, and needs to be told explicitly. This is critical for the devices that have the "conflicting output formats" issue (SAM9N12, SAM9X5, SAMA5D3), since the most significant RGB bits move around depending on the selected output mode. For devices that do not have the "conflicting output formats" issue (SAMA5D2, SAMA5D4), this is completely irrelevant. Signed-off-by: Peter Rosin --- Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt index 82f2acb3d374..244b48869eb4 100644 --- a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt +++ b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt @@ -15,6 +15,14 @@ Required children nodes: to external devices using the OF graph reprensentation (see ../graph.txt). At least one port node is required. +Optional properties in grandchild nodes: + Any endpoint grandchild node may specify a desired video interface + according to ../../media/video-interfaces.txt, specifically + - bus-type: must be <0>. + - bus-width: recognized values are <12>, <16>, <18> and <24>, and + override any output mode selection hueristic, forcing "rgb444", + "rgb565", "rgb666" and "rgb888" respectively. + Example: hlcdc: hlcdc@f0030000 {