Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932728AbdCGOpi (ORCPT ); Tue, 7 Mar 2017 09:45:38 -0500 Received: from smtprelay.synopsys.com ([198.182.47.9]:45064 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755588AbdCGOns (ORCPT ); Tue, 7 Mar 2017 09:43:48 -0500 From: Ramiro Oliveira To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org Cc: CARLOS.PALMINHA@synopsys.com, Ramiro Oliveira , Andrew-CT Chen , Andrew Morton , Arnd Bergmann , Benoit Parrot , "David S. Miller" , Geert Uytterhoeven , Greg Kroah-Hartman , Guenter Roeck , Hans Verkuil , Hugues Fruchet , Jean-Christophe Trotin , Kamil Debski , Laurent Pinchart , Mark Rutland , Mauro Carvalho Chehab , Minghsiu Tsai , =?UTF-8?q?Niklas=20S=C3=B6derlund?= , Peter Griffin , Rick Chang , Rob Herring , Simon Horman , Tiffany Lin Subject: [PATCH 3/4] Documentation: dt: Add bindings documentation for CSI-2 Host Video Platform Date: Tue, 7 Mar 2017 14:37:50 +0000 Message-Id: <95825021f5eae29a118ce0a2570c5c1886023110.1488885081.git.roliveir@synopsys.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2662 Lines: 95 Create device tree bindings documentation for the CSI-2 Host Video platform. Signed-off-by: Ramiro Oliveira --- .../devicetree/bindings/media/snps,plat-csi2.txt | 77 ++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/snps,plat-csi2.txt diff --git a/Documentation/devicetree/bindings/media/snps,plat-csi2.txt b/Documentation/devicetree/bindings/media/snps,plat-csi2.txt new file mode 100644 index 000000000000..f559257a0a44 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,plat-csi2.txt @@ -0,0 +1,77 @@ +Synopsys DesignWare CSI-2 Host Video Platform + +The Synopsys DesignWare CSI-2 Host Video Device subsystem comprises of multiple +sub-devices represented by separate device tree nodes. Currently this includes: +plat-csi2, video-device, and dw-mipi-csi. + +The sub-subdevices are defined as child nodes of the common 'camera'. + +Common 'camera' node +-------------------- + +Required properties: + +- compatible: must be "snps,plat-csi2", "simple-bus" + +The 'camera' node must include at least one 'video-device' and one 'dw-mipi-csi' +child node. + +'video-device' device nodes +------------------- + +Required properties: + +- compatible: "snps,video-device" +- dmas, dma-names: List of one DMA specifier and identifier string (as defined + in Documentation/devicetree/bindings/dma/dma.txt) per port. Each port + requires a DMA channel with the identifier string set to "vdma" followed by + the port index. + +Image sensor nodes +------------------ + +The sensor device nodes should be added to their control bus controller (e.g. +I2C0) nodes and linked to a port node in the dw-mipi-csi,using the common video +interfaces bindings, defined in video-interfaces.txt. + +Example: + + + camera { + compatible = "snps,plat-csi2", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + video_device: video-device@0x10000 { + compatible = "snps,video-device"; + dmas = <&axi_vdma_0 0>; + dma-names = "vdma0"; + }; + + csi2: csi2@0x03000 { + compatible = "snps,dw-mipi-csi"; + #address-cells = <1>; + #size-cells = <0>; + reg = < 0x03000 0x7FF>; + interrupts = <2>; + phys = <&mipi_phy_ctrl1 0>; + resets = <&csi2_rst 1>; + + output-type = <2>; + ipi-mode = <0>; + ipi-color-mode = <0>; + ipi-auto-flush = <1>; + virtual-channel = <0>; + + port@1 { + reg = <1>; + csi1_ep1: endpoint { + remote-endpoint = <&camera>; + data-lanes = <1 2>; + }; + }; + }; + }; + }; + +The dw-mipi-csi device binding is defined in snps,dw-mipi-csi.txt. -- 2.11.0