[PATCH 3/3] spi: clps711x: dts: Add bindings documentation for the CLPS711X SPI driver

[Alexander Shiyan <shc_work-JGs/UdohzUI@public.gmane.org>]

This patch adds the devicetree documentation for the
Cirrus Logic CLPS711X SPI driver.

Signed-off-by: Alexander Shiyan <shc_work-JGs/UdohzUI@public.gmane.org>
---
 .../devicetree/bindings/spi/spi-clps711x.txt         | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-clps711x.txt

diff --git a/Documentation/devicetree/bindings/spi/spi-clps711x.txt b/Documentation/devicetree/bindings/spi/spi-clps711x.txt
new file mode 100644
index 0000000..43712c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-clps711x.txt
@@ -0,0 +1,20 @@
+* Cirrus Logic ARM CLPS711X Serial Peripheral Interface (SPI)
+
+Required properties:
+- compatible: Shall contain "cirrus,clps711x-spi".
+- reg: Offset and length of the register set for the device.
+- interrupts: Should contain SPI interrupt.
+- clocks: phandle to SPI reference clock.
+- cs-gpios: Specifies the GPIO pins to be used for chipselects.
+
+Example:
+	spi: spi@80000500 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "cirrus,ep7312-spi", "cirrus,clps711x-spi";
+		reg = <0x80000500 0x4>;
+		interrupts = <15>;
+		clocks = <&clks CLPS711X_CLK_SPIREF>;
+		cs-gpios = <&portb 4 GPIO_ACTIVE_LOW>,
+			   <&portb 5 GPIO_ACTIVE_LOW>;
+	};
-- 
1.8.5.5

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