SC9860 use the same serial device, so added a new compatible string to
support SC9860 as well, also added an example of how to describe this
serial device in DT.
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/serial/sprd-uart.txt | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt
index 2aff0f2..8bd8144 100644
--- a/Documentation/devicetree/bindings/serial/sprd-uart.txt
+++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt
@@ -1,7 +1,20 @@
* Spreadtrum serial UART
Required properties:
-- compatible: must be "sprd,sc9836-uart"
+- compatible must contain:
+ * "sprd,sc9836-uart" for SC9836 and all Spreadtrum SoCs
+ This also can be specific with:
+ * "sprd,sc9860-uart" for SC9860
+
- reg: offset and length of the register set for the device
- interrupts: exactly one interrupt specifier
- clocks: phandles to input clocks.
+
+Example:
+ uart0: serial@70000000 {
+ compatible = "sprd,sc9860-uart",
+ "sprd,sc9836-uart";
+ reg = <0x000000 0x100>;
+ interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ext_26m>;
+ };
--
2.7.4
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