ARM64: zynqmp: Add backward compatible string for uart

Mainline kernel has no r1p12 compatible string that's why console stops
to work with the latest DTS files. Append generic compatible string.
Keep in your mind that using this generic compatible string not all uart
features will be available.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi
index dbb6b44e4f2bbc013f84492e8cf36c0f080a5751..1beb7cc46084ec4a46f2c6ce23c60255806f4ada 100644 (file)
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -545,7 +545,7 @@
                };
 
                uart0: serial@ff000000 {
-                       compatible = "cdns,uart-r1p12";
+                       compatible = "cdns,uart-r1p12", "xlnx,xuartps";
                        status = "disabled";
                        interrupt-parent = <&gic>;
                        interrupts = <0 21 4>;
@@ -554,7 +554,7 @@
                };
 
                uart1: serial@ff010000 {
-                       compatible = "cdns,uart-r1p12";
+                       compatible = "cdns,uart-r1p12", "xlnx,xuartps";
                        status = "disabled";
                        interrupt-parent = <&gic>;
                        interrupts = <0 22 4>;