From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753057AbcLLPBJ (ORCPT ); Mon, 12 Dec 2016 10:01:09 -0500 Received: from smtprelay2.synopsys.com ([198.182.60.111]:48908 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751256AbcLLPBG (ORCPT ); Mon, 12 Dec 2016 10:01:06 -0500 From: Ramiro Oliveira To: robh+dt@kernel.org, mark.rutland@arm.com, mchehab@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Cc: davem@davemloft.net, gregkh@linuxfoundation.org, geert+renesas@glider.be, akpm@linux-foundation.org, linux@roeck-us.net, hverkuil@xs4all.nl, laurent.pinchart+renesas@ideasonboard.com, arnd@arndb.de, sudipm.mukherjee@gmail.com, tiffany.lin@mediatek.com, minghsiu.tsai@mediatek.com, jean-christophe.trotin@st.com, andrew-ct.chen@mediatek.com, simon.horman@netronome.com, songjun.wu@microchip.com, bparrot@ti.com, CARLOS.PALMINHA@synopsys.com, Ramiro.Oliveira@synopsys.com Subject: [PATCH v2 1/2] Add Documentation for Media Device, Video Device, and Synopsys DW MIPI CSI-2 Host Date: Mon, 12 Dec 2016 15:00:35 +0000 Message-Id: <48a46d2d60fff723e322fdbfb29d533c2d0f5637.1481554324.git.roliveir@synopsys.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Create device tree bindings documentation for Media and Video Device, as well as the DW MIPI CSI-2 Host. Signed-off-by: Ramiro Oliveira --- .../devicetree/bindings/media/snps,dw-mipi-csi.txt | 37 ++++++++ .../devicetree/bindings/media/snps,plat-ipk.txt | 105 +++++++++++++++++++++ 2 files changed, 142 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt create mode 100644 Documentation/devicetree/bindings/media/snps,plat-ipk.txt diff --git a/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt b/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt new file mode 100644 index 0000000..1caa652 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt @@ -0,0 +1,37 @@ +Synopsys DesignWare CSI-2 Host controller + +Description +----------- + +This HW block is used to receive image coming from an MIPI CSI-2 compatible +camera. + +Required properties: +- compatible: shall be "snps,dw-mipi-csi" +- reg : physical base address and size of the device memory mapped + registers; +- interrupts : CSI-2 Host interrupt +- data-lanes : Number of lanes to be used +- output-type : Core output to be used (IPI-> 0 or IDI->1 or BOTH->2) These + values choose which of the Core outputs will be used, it can be Image Data + Interface or Image Pixel Interface. +- phys, phy-names: List of one PHY specifier and identifier string (as defined + in Documentation/devicetree/bindings/phy/phy-bindings.txt). This PHY is a MIPI + DPHY working in RX mode. + +Optional properties(if in IPI mode): +- ipi-mode : Mode to be used when in IPI(Camera -> 0 or Automatic -> 1) + This property defines if the controller will use the video timings available + in the video stream or if it will use pre-defined ones. +- ipi-color-mode: Bus depth to be used in IPI (48 bits -> 0 or 16 bits -> 1) + This property defines the width of the IPI bus. +- ipi-auto-flush: Data auto-flush (1 -> Yes or 0 -> No). This property defines + if the data is automatically flushed in each vsync or if this process is done + manually +- virtual-channel: Virtual channel where data is present when in IPI mode. This + property chooses the virtual channel which IPI will use to retrieve the video + stream. + +The per-board settings: + - port sub-node describing a single endpoint connected to the dw-mipi-csi + as described in video-interfaces.txt[1]. diff --git a/Documentation/devicetree/bindings/media/snps,plat-ipk.txt b/Documentation/devicetree/bindings/media/snps,plat-ipk.txt new file mode 100644 index 0000000..50e9279 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,plat-ipk.txt @@ -0,0 +1,105 @@ +Synopsys DesignWare CSI-2 Host IPK Media Device + +The Synopsys DesignWare CSI-2 Host IPK subsystem comprises of multiple +sub-devices represented by separate device tree nodes. Currently this includes: +plat-ipk, video-device, and dw-mipi-csi. + +The sub-subdevices are defined as child nodes of the common 'camera' node which +also includes common properties of the whole subsystem not really specific to +any single sub-device. + +Common 'camera' node +-------------------- + +Required properties: + +- compatible: must be "snps,plat-ipk", "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 "port" 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: + + i2c@0x02000 { + compatible = "snps,designware-i2c"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x02000 0x100>; + clock-frequency = <400000>; + clocks = <&i2cclk>; + interrupts =<0>; + ov: camera@0x36 { + compatible = "ovti,ov5647"; + reg = <0x36>; + port { + camera_1: endpoint { + remote-endpoint = <&csi1_ep1>; + clock-lanes = <0>; + data-lanes = <1 2 >; + }; + }; + }; + }; + + + camera { + compatible = "snps,plat-ipk", "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_1: csi2@0x03000 { + compatible = "snps,dw-mipi-csi"; + #address-cells = <1>; + #size-cells = <0>; + reg = < 0x03000 0x7FF>; + interrupts = <2>; + data-lanes = <2>; + output-type = <2>; + + phys = <&mipi_phy_ctrl1 0>; + phy-names = "csi2-dphy"; + + /*IPI Related Configurations*/ + ipi-mode = <0>; + ipi-color-mode = <0>; + ipi-auto-flush = <1>; + virtual-channel = <0>; + + /* Camera MIPI CSI-2 (CSI1) */ + port@1 { + reg = <1>; + csi1_ep1: endpoint { + remote-endpoint = <&camera_1>; + data-lanes = <1 2>; + }; + }; + }; + }; + }; + +The dw-mipi-csi device binding is defined in snps,dw-mipi-csi.txt. -- 2.10.2