Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/serial/efm32-uart.txt b/Documentation/devicetree/bindings/serial/efm32-uart.txt
new file mode 100644
index 000000000..4f8d8fde0
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/efm32-uart.txt
@@ -0,0 +1,20 @@
+* Energymicro efm32 UART
+
+Required properties:
+- compatible : Should be "energymicro,efm32-uart"
+- reg : Address and length of the register set
+- interrupts : Should contain uart interrupt
+
+Optional properties:
+- energymicro,location : Decides the location of the USART I/O pins.
+  Allowed range : [0 .. 5]
+  Default: 0
+
+Example:
+
+uart@4000c400 {
+	compatible = "energymicro,efm32-uart";
+	reg = <0x4000c400 0x400>;
+	interrupts = <15>;
+	energymicro,location = <0>;
+};