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 98c07dcc8d6eddddb3d5c3e695d486227b362339..f9249aa7b07689196ddab02b670bb47a818d3a97 100644 (file)
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -775,7 +775,7 @@
                };
 
                uart0: serial@ff000000 {
-                       compatible = "cdns,uart-r1p12";
+                       compatible = "cdns,uart-r1p12", "xlnx,xuartps";
                        status = "disabled";
                        interrupt-parent = <&gic>;
                        interrupts = <0 21 4>;
@@ -785,7 +785,7 @@
                };
 
                uart1: serial@ff010000 {
-                       compatible = "cdns,uart-r1p12";
+                       compatible = "cdns,uart-r1p12", "xlnx,xuartps";
                        status = "disabled";
                        interrupt-parent = <&gic>;
                        interrupts = <0 22 4>;