Add a DT node for the DisplayPort subsystem, a hard IP present in the
Zynq Ultrascale+ MPSoC.

Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
 arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi |  4 ++++
 arch/arm64/boot/dts/xilinx/zynqmp.dtsi     | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi 
b/arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi
index 22b4bce6431f..bc3d5219e5b4 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi
@@ -84,6 +84,10 @@
        clocks = <&dpdma_clk>;
 };
 
+&dpsub {
+       clocks = <&dp_aclk>, <&dp_aud_clk>, <&drm_clock>;
+};
+
 &fpd_dma_chan1 {
        clocks = <&clk600>, <&clk100>;
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi 
b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 766389ddf97f..35d310337afe 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -407,6 +407,27 @@
                        interrupts = <0 112 4>;
                };
 
+               dpsub: display@fd4a0000 {
+                       compatible = "xlnx,zynqmp-dpsub-1.7";
+                       status = "disabled";
+                       reg = <0x0 0xfd4a0000 0x0 0x1000>,
+                             <0x0 0xfd4aa000 0x0 0x1000>,
+                             <0x0 0xfd4ab000 0x0 0x1000>,
+                             <0x0 0xfd4ac000 0x0 0x1000>;
+                       reg-names = "dp", "blend", "av_buf", "aud";
+                       interrupts = <0 119 4>;
+                       interrupt-parent = <&gic>;
+
+                       clock-names = "dp_apb_clk", "dp_aud_clk",
+                                     "dp_vtc_pixel_clk_in";
+
+                       dma-names = "vid0", "vid1", "vid2", "gfx0";
+                       dmas = <&dpdma 0>,
+                              <&dpdma 1>,
+                              <&dpdma 2>,
+                              <&dpdma 3>;
+               };
+
                gem0: ethernet@ff0b0000 {
                        compatible = "cdns,zynqmp-gem", "cdns,gem";
                        status = "disabled";
-- 
Regards,

Laurent Pinchart

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