From patchwork Mon Jan 29 09:18:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yong X-Patchwork-Id: 10189487 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 06F0260212 for ; Mon, 29 Jan 2018 10:09:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E332A27D16 for ; Mon, 29 Jan 2018 10:09:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D7D2728764; Mon, 29 Jan 2018 10:09:09 +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 19E0127D16 for ; Mon, 29 Jan 2018 10:09:07 +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=WS2 pofisgv9dWLVvaGTth+rjHajuzkT121t/Fv44iM45UQraq/ImRNkDaPB76YfDIDOzWHYsyuow82zj u0nDz05UP42F8m3Axw/0sN3UwaB5AAcDbHaV9Fx4ui+Xnm7dKX7DgYJ4nTDMIRtzWF1unj4Jn4V1p Fb8/Thr040jusqTo/FjdZYcydq6KMTb1iMSWmQp9NS8/1YLZeIqzOZ1oZ3iUaH1B/0BrkNbKo2C/0 OtAtSP33SbiF5CEA2hxQm3pFQVu6dqdMdJsKFiYCDz0alVJZ1RHtEtRXuExB4pXwtf4mJFJZAs0VK 9wkbMpcN6S+EDPqOxpN6rDBm8v54lEg==; 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 1eg6N8-0006w0-SI; Mon, 29 Jan 2018 10:09:06 +0000 Received: from merlin.infradead.org ([2001:8b0:10b:1231::1]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1eg6N5-0006lw-G5 for linux-arm-kernel@bombadil.infradead.org; Mon, 29 Jan 2018 10:09:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Message-Id:Date:Subject:Cc:To:From: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=H5Po41NpcVGxJ0Z41Wf4cwjAdgXvyEV/MGeJcgU+pn8=; b=3TOOMXuewrdX+EH+lz45dlEIO AhmiSiMjdVOi63rH/F4zhuRpIsXsdk1HaKn/Ap8dPPpHRlwx4lh+eNQoz5vVOmlA8N49wdMHvGeCs WyokkisKX4N2aW15hKfeJybp0KXU2LFGIzwoGOI+iHbWQ8k6c6qzPsVPKvA01PvmwgSJRamZmosig Hk9bGyoOqnDe2tcmREHswefH2fgUqA+oIK/xffZwWNEFo9WNwtkYKKB8dmj8+tRYj6ikyNqIxMDAN vTIW0BOBMMzYoKKhzweeQLxFeNycNd/o2Ye8N+nQ/95vwUZRj9ul3OWln9cyWjXdIuHZHb5gHiUXz 841ttB4nw==; Received: from out20-39.mail.aliyun.com ([115.124.20.39]) by merlin.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1eg5bz-0007Rx-Vp for linux-arm-kernel@lists.infradead.org; Mon, 29 Jan 2018 09:20:29 +0000 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.09749921|-1; CH=green; FP=0|0|0|0|0|-1|-1|-1; HT=e02c03308; MF=yong.deng@magewell.com; NM=1; PH=DS; RN=25; RT=25; SR=0; TI=SMTPD_---.AbcGfGV_1517217577; Received: from linuxproject.localdomain(mailfrom:yong.deng@magewell.com fp:58.213.29.2) by smtp.aliyun-inc.com(10.147.41.121); Mon, 29 Jan 2018 17:19:38 +0800 From: Yong Deng To: Maxime Ripard Subject: [PATCH v7 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Date: Mon, 29 Jan 2018 17:18:53 +0800 Message-Id: <1517217533-17657-1-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 , 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 Acked-by: Maxime Ripard --- .../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 */ + }; + }; +};