video_osd: Add ihs_video_out driver
Add a driver for IHS OSDs on IHS FPGAs.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/doc/device-tree-bindings/video/osd/gdsys,ihs_video_out.txt b/doc/device-tree-bindings/video/osd/gdsys,ihs_video_out.txt
new file mode 100644
index 0000000..d7aacc8
--- /dev/null
+++ b/doc/device-tree-bindings/video/osd/gdsys,ihs_video_out.txt
@@ -0,0 +1,23 @@
+* Guntermann & Drunck Integrated Hardware Systems OSD
+
+Required properties:
+- compatible: "gdsys,ihs_video_out"
+- reg: A combination of three register spaces:
+ - Register base for the video registers
+ - Register base for the OSD registers
+ - Address of the OSD video memory
+- mode: The initial resolution and frequency: "1024_768_60", "720_400_70", or
+ "640_480_70"
+- clk_gen: phandle to the pixel clock generator
+- dp_tx: phandle to the display associated with the OSD
+
+Example:
+
+fpga0_video0 {
+ compatible = "gdsys,ihs_video_out";
+ reg = <0x100 0x40
+ 0x180 0x20
+ 0x1000 0x1000>;
+ dp_tx = <&fpga0_dp_video0>;
+ clk_gen = <&fpga0_video0_clkgen>;
+};