dt-bindings: serial: 8250_omap: Add compatible for UART controller on AM64 SoC

AM64 uses a UART controller that is compatible with AM654 UART.
Introduce a specific compatible to help handle the differences if
necessary.

Reviewed-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20201029065318.2437-1-vigneshr@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
index dcba86b0a0d0bc8d9513b9fd2a0b38f2614b55fb..c2db8cabf2ab7351b0eedd851d4ae6e01411ab99 100644 (file)
--- a/Documentation/devicetree/bindings/serial/omap_serial.txt
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -1,6 +1,7 @@
 OMAP UART controller
 
 Required properties:
+- compatible : should be "ti,am64-uart", "ti,am654-uart" for AM64 controllers
 - compatible : should be "ti,j721e-uart", "ti,am654-uart" for J721E controllers
 - compatible : should be "ti,am654-uart" for AM654 controllers
 - compatible : should be "ti,omap2-uart" for OMAP2 controllers