Live Input

https://github.com/xilinx//linux-xlnx/blob/xilinx-v2018.2/drivers/gpu/drm/xlnx/xlnx_bridge.h#L65 http://github.com/xilinx/linux-xlnx/blob/xilinx-v2018.2/Documentation/devicetree/bindings/display/xlnx/xlnx%2Czynqmp-dpsub.txt#L20

- clocks: phandles for axi, audio, non-live video, and live video clocks.
  axi clock is required. Audio clock is optional. If not present, audio will
  be disabled. One of non-live or live video clock should be present.
- clock-names: The identification strings are required. "aclk" for axi clock.
  "dp_aud_clk" for audio clock. "dp_vtc_pixel_clk_in" for non-live video clock.
  "dp_live_video_in_clk" for live video clock (clock from programmable logic).

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi
index a02ad79..dd747d0 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi
@@ -272,7 +272,7 @@
 };
 
 &zynqmp_dpsub {
-       clocks = <&dp_aclk>, <&clk 17>, <&clk 16>;
+       clocks = <&dp_aclk>, <&clk 17>, <&clk 16>, <&si570_1>;
 };
 
 &xlnx_dpdma {
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index fb196a1..acd7cf2 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -1151,7 +1151,8 @@
                        interrupt-parent = <&gic>;
 
                        clock-names = "dp_apb_clk", "dp_aud_clk",
-                                     "dp_vtc_pixel_clk_in";
+                                     "dp_vtc_pixel_clk_in",
+                                     "dp_live_video_in_clk";
 
                        power-domains = <&pd_dp>;

/sys/kernel/debug/xlnx-bridge/xlnx_bridge-vid-layer
/sys/kernel/debug/xlnx-bridge/xlnx_bridge-gfx-layer

http://github.com/xilinx/linux-xlnx/blob/xilinx-v2018.2/drivers/gpu/drm/xlnx/xlnx_bridge.c#L310

echo "set_input 1920 1080 0x100e" > /sys/kernel/debug/xlnx-bridge/xlnx_bridge-vid-layer
echo "enable" > /sys/kernel/debug/xlnx-bridge/xlnx_bridge-vid-layer

http://github.com/xilinx/linux-xlnx/blob/xilinx-v2018.2/include/uapi/linux/media-bus-format.h#L49

echo "disable" > /sys/kernel/debug/xlnx-bridge/xlnx_bridge-vid-layer