From patchwork Tue Jan 23 08:16:17 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yong X-Patchwork-Id: 10179729 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BC66D601D5 for ; Tue, 23 Jan 2018 08:17:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A5E5728643 for ; Tue, 23 Jan 2018 08:17:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9A60628694; Tue, 23 Jan 2018 08:17:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4406928643 for ; Tue, 23 Jan 2018 08:17:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=L1SzgPpbm8G11annTAKvqPAeeYWQbm0YB9dcvMwNWXE=; b=BkF tbwtLJcsTWcbyfnyCsEOAJD72m2Om6qwHOpJ7aQi72xtM9pFgqayiHn/pbTkk9oCXgPqhxMb9Mi6y s5Q9aa84TaupZOl/bowHXADJXLmAFVeuTbg56l3aguyc68beJ3bI9CBzfomnAumJD1cgbh0jp6/eH Ksvd/P8ds1QydtYYZ3+Dtq/orsa1pMoOdKSVEmzVUdBEvQG56DxRYnQ7BlCZrkyzv83vaVxEknHjp INRRFaNyTvGUMFIpAon4m3oEGWrpXfgyvQQmbfkrptQHSUOULd5Bl1zgs1zJGenO13Jc44vuQdVg/ JnxrGIQ4RHfGENhImko7++CkU/JRoDw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1edtls-0006rJ-VB; Tue, 23 Jan 2018 08:17:32 +0000 Received: from out20-26.mail.aliyun.com ([115.124.20.26]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1edtlp-0006qN-By for linux-arm-kernel@lists.infradead.org; Tue, 23 Jan 2018 08:17:31 +0000 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.09639932|-1; CH=green; FP=0|0|0|0|0|-1|-1|-1; HT=e02c03275; MF=yong.deng@magewell.com; NM=1; PH=DS; RN=26; RT=26; SR=0; TI=SMTPD_---.ATi-j1Z_1516695419; Received: from linuxproject.localdomain(mailfrom:yong.deng@magewell.com fp:58.213.29.2) by smtp.aliyun-inc.com(10.147.40.44); Tue, 23 Jan 2018 16:16:59 +0800 From: Yong Deng To: Maxime Ripard Subject: [PATCH v6 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Date: Tue, 23 Jan 2018 16:16:17 +0800 Message-Id: <1516695377-23262-1-git-send-email-yong.deng@magewell.com> X-Mailer: git-send-email 1.8.3.1 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , megous@megous.com, Linus Walleij , Stanimir Varbanov , linux-sunxi@googlegroups.com, Benjamin Gaignard , Rick Chang , Chen-Yu Tsai , Hans Verkuil , linux-media@vger.kernel.org, devicetree@vger.kernel.org, Philipp Zabel , Arnd Bergmann , Rob Herring , Yong Deng , Hugues Fruchet , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Randy Dunlap , linux-kernel@vger.kernel.org, Yannick Fertre , Sakari Ailus , Ramesh Shanmugasundaram , "David S. Miller" MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add binding documentation for Allwinner V3s CSI. Reviewed-by: Rob Herring Signed-off-by: Yong Deng --- .../devicetree/bindings/media/sun6i-csi.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/sun6i-csi.txt diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt new file mode 100644 index 0000000..2ff47a9 --- /dev/null +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt @@ -0,0 +1,59 @@ +Allwinner V3s Camera Sensor Interface +------------------------------------- + +Allwinner V3s SoC features two CSI module. CSI0 is used for MIPI CSI-2 +interface and CSI1 is used for parallel interface. + +Required properties: + - compatible: value must be "allwinner,sun8i-v3s-csi" + - reg: base address and size of the memory-mapped region. + - interrupts: interrupt associated to this IP + - clocks: phandles to the clocks feeding the CSI + * bus: the CSI interface clock + * mod: the CSI module clock + * ram: the CSI DRAM clock + - clock-names: the clock names mentioned above + - resets: phandles to the reset line driving the CSI + +Each CSI node should contain one 'port' child node with one child 'endpoint' +node, according to the bindings defined in +Documentation/devicetree/bindings/media/video-interfaces.txt. As mentioned +above, the endpoint's bus type should be MIPI CSI-2 for CSI0 and parallel or +Bt656 for CSI1. + +Endpoint node properties for CSI1 +--------------------------------- + +- remote-endpoint : (required) a phandle to the bus receiver's endpoint + node +- bus-width: : (required) must be 8, 10, 12 or 16 +- pclk-sample : (optional) (default: sample on falling edge) +- hsync-active : (only required for parallel) +- vsync-active : (only required for parallel) + +Example: + +csi1: csi@1cb4000 { + compatible = "allwinner,sun8i-v3s-csi"; + reg = <0x01cb4000 0x1000>; + interrupts = ; + clocks = <&ccu CLK_BUS_CSI>, + <&ccu CLK_CSI1_SCLK>, + <&ccu CLK_DRAM_CSI>; + clock-names = "bus", "mod", "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 */ + }; + }; +};