From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: [PATCH v4 4/4] [media] dt-bindings: add TI VPIF documentation Date: Tue, 29 Nov 2016 15:57:12 -0800 Message-ID: <20161129235712.29846-5-khilman@baylibre.com> References: <20161129235712.29846-1-khilman@baylibre.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20161129235712.29846-1-khilman@baylibre.com> Sender: linux-media-owner@vger.kernel.org To: linux-media@vger.kernel.org Cc: Hans Verkuil , Laurent Pinchart , Sakari Ailus , linux-arm-kernel@lists.infradead.org, Sekhar Nori , Rob Herring , devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Signed-off-by: Kevin Hilman --- .../devicetree/bindings/media/ti,da850-vpif.txt | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/ti,da850-vpif.txt diff --git a/Documentation/devicetree/bindings/media/ti,da850-vpif.txt b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt new file mode 100644 index 000000000000..fa06dfdb6898 --- /dev/null +++ b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt @@ -0,0 +1,67 @@ +Texas Instruments VPIF +---------------------- + +The TI Video Port InterFace (VPIF) is the primary component for video +capture and display on the DA850/AM18x family of TI DaVinci/Sitara +SoCs. + +TI Document reference: SPRUH82C, Chapter 35 +http://www.ti.com/lit/pdf/spruh82 + +Required properties: +- compatible: must be "ti,da850-vpif" +- reg: physical base address and length of the registers set for the device; +- interrupts: should contain IRQ line for the VPIF + +Video Capture: + +VPIF has a 16-bit parallel bus input, supporting 2 8-bit channels or a +single 16-bit channel. It should contain at least one port child node +with child 'endpoint' node. Please refer to the bindings defined in +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example using 2 8-bit input channels, one of which is connected to an +I2C-connected TVP5147 decoder: + + vpif: vpif@217000 { + compatible = "ti,da850-vpif"; + reg = <0x217000 0x1000>; + interrupts = <92>; + + port { + vpif_ch0: endpoint@0 { + reg = <0>; + bus-width = <8>; + remote-endpoint = <&composite>; + }; + + vpif_ch1: endpoint@1 { + reg = <1>; + bus-width = <8>; + data-shift = <8>; + }; + }; + }; + +[ ... ] + +&i2c0 { + + tvp5147@5d { + compatible = "ti,tvp5147"; + reg = <0x5d>; + status = "okay"; + + port { + composite: endpoint { + hsync-active = <1>; + vsync-active = <1>; + pclk-sample = <0>; + + /* VPIF channel 0 (lower 8-bits) */ + remote-endpoint = <&vpif_ch0>; + bus-width = <8>; + }; + }; + }; +}; -- 2.9.3