From patchwork Tue Mar 6 02:13:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yong X-Patchwork-Id: 10260527 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 A9DB660134 for ; Tue, 6 Mar 2018 02:15:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9868028E05 for ; Tue, 6 Mar 2018 02:15:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8CFB428E08; Tue, 6 Mar 2018 02:15:10 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 367EB28E05 for ; Tue, 6 Mar 2018 02:15:09 +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=j+M4//EywgFsZPL97Oyo0gBl38waj5EXIq4E+mGWi40=; b=aOY /7IWrLFpfX6F2dTgF8Uv0TVgZ7ptfBwWS2qzlmG5vbsnCowkxMT0vOfMmszqDZZbuPTt5ZEyBbhs2 wFuINw5Uqyi2MbcCylPztmiRW6H1zK3rurnC87M4wTjD0ANvpp1HKwTSi+OPwl+tNbFhY3mNaYr4Y ZfCvtocF0Gzf8ICNVvwC5dQbhwdguTehzCOeEUo9EIlen6y+ZSV/U1cZb8LA1LdE1EBAqc2mAdksK HqAz0747qTlHgg57vOMvv0OufWhZqCk6ehW5q2NrJZVrtW4iPsmW3SZ2QrvwTsfyapwQd+MjfkIxV ZAGYtCkhDQKAp2Nt3cfyWZlz5284t5g==; 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 1et286-0006Qt-OR; Tue, 06 Mar 2018 02:15:02 +0000 Received: from out20-61.mail.aliyun.com ([115.124.20.61]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1et27z-0006OP-8s for linux-arm-kernel@lists.infradead.org; Tue, 06 Mar 2018 02:14:59 +0000 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.09575538|-1; CH=green; FP=0|0|0|0|0|-1|-1|-1; HT=e02c03312; MF=yong.deng@magewell.com; NM=1; PH=DS; RN=24; RT=24; SR=0; TI=SMTPD_---.BBqcIMu_1520302466; Received: from linuxproject.localdomain(mailfrom:yong.deng@magewell.com fp:58.213.29.2) by smtp.aliyun-inc.com(10.147.44.129); Tue, 06 Mar 2018 10:14:27 +0800 From: Yong Deng To: Maxime Ripard Subject: [PATCH v9 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Date: Tue, 6 Mar 2018 10:13:45 +0800 Message-Id: <1520302425-1499-1-git-send-email-yong.deng@magewell.com> X-Mailer: git-send-email 1.8.3.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180305_181455_605597_78217372 X-CRM114-Status: GOOD ( 14.24 ) 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 , Yannick Fertre , Chen-Yu Tsai , Hans Verkuil , linux-media@vger.kernel.org, devicetree@vger.kernel.org, Sakari Ailus , Arnd Bergmann , Rob Herring , Yong Deng , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Randy Dunlap , linux-kernel@vger.kernel.org, Todor Tomov , Philipp Zabel , 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. Acked-by: Maxime Ripard Acked-by: Sakari Ailus 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 000000000000..2ff47a9507a6 --- /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 */ + }; + }; +};