From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758295AbdLVJmz (ORCPT ); Fri, 22 Dec 2017 04:42:55 -0500 Received: from out20-99.mail.aliyun.com ([115.124.20.99]:34914 "EHLO out20-99.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758138AbdLVJmu (ORCPT ); Fri, 22 Dec 2017 04:42:50 -0500 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.09372291|-1;CH=green;FP=0|0|0|0|0|-1|-1|-1;HT=e01l01425;MF=yong.deng@magewell.com;NM=1;PH=DS;RN=24;RT=24;SR=0;TI=SMTPD_---.9psYKed_1513935748; From: Yong Deng To: Maxime Ripard Cc: Mauro Carvalho Chehab , Rob Herring , Mark Rutland , Chen-Yu Tsai , "David S. Miller" , Greg Kroah-Hartman , Randy Dunlap , Hans Verkuil , Stanimir Varbanov , Hugues Fruchet , Yannick Fertre , Philipp Zabel , Arnd Bergmann , Benjamin Gaignard , Ramesh Shanmugasundaram , Sakari Ailus , Rick Chang , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, Yong Deng Subject: [PATCH v4 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Date: Fri, 22 Dec 2017 17:41:29 +0800 Message-Id: <1513935689-35415-1-git-send-email-yong.deng@magewell.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add binding documentation for Allwinner V3s CSI. Signed-off-by: Yong Deng --- .../devicetree/bindings/media/sun6i-csi.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 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..b5bfe3f --- /dev/null +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt @@ -0,0 +1,51 @@ +Allwinner V3s Camera Sensor 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 + +- ports: A ports node with endpoint definitions as defined in + Documentation/devicetree/bindings/media/video-interfaces.txt. + Currently, the driver only support the parallel interface. So, a single port + node with one endpoint and parallel bus is supported. + +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 { + #address-cells = <1>; + #size-cells = <0>; + + /* Parallel bus endpoint */ + csi1_ep: endpoint { + remote-endpoint = <&adv7611_ep>; + bus-width = <16>; + data-shift = <0>; + + /* If hsync-active/vsync-active are missing, + embedded BT.656 sync is used */ + hsync-active = <0>; /* Active low */ + vsync-active = <0>; /* Active low */ + data-active = <1>; /* Active high */ + pclk-sample = <1>; /* Rising */ + }; + }; + }; + -- 1.8.3.1