Add bindings documentation for the i.MX media driver. Signed-off-by: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx> --- Documentation/devicetree/bindings/media/imx.txt | 57 +++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/imx.txt diff --git a/Documentation/devicetree/bindings/media/imx.txt b/Documentation/devicetree/bindings/media/imx.txt new file mode 100644 index 0000000..254b64a --- /dev/null +++ b/Documentation/devicetree/bindings/media/imx.txt @@ -0,0 +1,57 @@ +Freescale i.MX Media Video Devices + +Video Media Controller node +--------------------------- + +This is the parent media controller node for video capture support. + +Required properties: +- compatible : "fsl,imx-media"; +- ports : Should contain a list of phandles pointing to camera + sensor interface ports of IPU devices + + +fim child node +-------------- + +This is an optional child node of the ipu_csi port nodes. If present and +available, it enables the Frame Interval Monitor. Its properties can be +used to modify the method in which the FIM measures frame intervals. +Refer to Documentation/media/v4l-drivers/imx.rst for more info on the +Frame Interval Monitor. + +Optional properties: +- fsl,input-capture-channel: an input capture channel and channel flags, + specified as <chan flags>. The channel number + must be 0 or 1. The flags can be + IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, or + IRQ_TYPE_EDGE_BOTH, and specify which input + capture signal edge will trigger the input + capture event. If an input capture channel is + specified, the FIM will use this method to + measure frame intervals instead of via the EOF + interrupt. The input capture method is much + preferred over EOF as it is not subject to + interrupt latency errors. However it requires + routing the VSYNC or FIELD output signals of + the camera sensor to one of the i.MX input + capture pads (SD1_DAT0, SD1_DAT1), which also + gives up support for SD1. + + +mipi_csi2 node +-------------- + +This is the device node for the MIPI CSI-2 Receiver, required for MIPI +CSI-2 sensors. + +Required properties: +- compatible : "fsl,imx6-mipi-csi2"; +- reg : physical base address and length of the register set; +- clocks : the MIPI CSI-2 receiver requires three clocks: hsi_tx + (the DPHY clock), video_27m, and eim_sel; +- clock-names : must contain "dphy", "cfg", "pix"; + +Optional properties: +- interrupts : must contain two level-triggered interrupts, + in order: 100 and 101; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
