Signed-off-by: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxx>
---
.../devicetree/bindings/mfd/atmel-flexcom.txt | 28 ++++++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
new file mode 100644
index 0000000..6b1a32e
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+++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
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+* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit)
+
+The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C
+controller and an USART. Only one function can be used at a time and is chosen
+at boot time according to the device tree.
+
+Required properties:
+- compatible: "atmel,sama5d2-flexcom"
+- reg: shall be the offset/length value for Flexcom dedicated I/O registers
+ (without USART, TWI or SPI registers).
+- clocks: shall be the Flexcom peripheral clock from PMC.
+- #address-cells: should be <1>
+- #size-cells: should be <1>
+- ranges: must be present
+- atmel,flexcom-mode: shall be a string among { "spi", "usart", "i2c", "twi" }.
+ "i2c" and "twi" are synonymous.
+
+Example:
+
+flx0: flexcom@f8034000 {
+ compatible = "atmel,sama5d2-flexcom";
+ reg = <0xf8034000 0x200>;
+ clocks = <&flx0_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ atmel,flexcom-mode = "spi";
+};
--
1.8.2.2
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