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- The driver is tested with YUY2, NV16, NV12, RGB, GRAY8, UYVY and BGR Gstreamer formats only.
- Please check section below on Stride and height Height align issue. Please check here.
Kernel Configuration
The following config options should be enabled in order to build Xilinx Multi-Scaler driver
CONFIG_VIDEO_XILINX
CONFIG_VIDEO_DEV
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CONFIG_VIDEO_XILINX_MULTISCALER
The driver is available at,
https://github.com/Xilinx/linux-xlnx/blob/master/drivers/media/platform/xilinx/xilinx-multi-scaler.c
Device Tree Binding
The device tree node will be automatically generated, if the core is configured in the HW design, using the Device Tree BSP.
Steps to generate device-tree is documented here,
http://www.wiki.xilinx.com/Build+Device+Tree+Blob
And a sample binding is shown below and the description of DT property is documented here
| Code Block | ||
|---|---|---|
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v_multi_scaler_1: v_multi_scaler@a0000000 {
clock-names = "ap_clk";
clocks = <&misc_clk_0>;
compatible = "xlnx,v-multi-scaler-1.0", "xlnx,v-multi-scaler-v1.0";
interrupt-names = "interrupt";
interrupt-parent = <&gic>;
interrupts = <0 89 4>;
reg = <0x0 0xa0000000 0x0 0x20000>;
reset-gpios = <&gpio 78 1>;
xlnx,dma-addr-width = <0x20>;
xlnx,max-chan = <8>;
xlnx,max-height = <2160>;
xlnx,max-width = <3840>;
xlnx,num-taps = <12>;
xlnx,pixels-per-clock = /bits/ 8 <2>;
xlnx,vid-formats = "xrgb8888", "bgr888", "xbgr8888", "xbgr2101010", "uyvy", "y8", "y10", "vuy888", "xvuy8888", "yuvx2101010", "yuyv", "nv12", "nv16", "xv20", "xv15";
}; |
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2018.3
- Summary:
- Add first version of driver.
- Commits:
- 484cdb2 platform: xilinx: Add mem to mem Multi-Scaler driver (XM2MSC)