This patch includes ST95HF binding doc that guides how to
make node entry of ST95HF in DT file of any platform.
Signed-off-by: Shikha Singh <shikha.singh@xxxxxx>
---
.../devicetree/bindings/net/nfc/st95hf.txt | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/nfc/st95hf.txt
diff --git a/Documentation/devicetree/bindings/net/nfc/st95hf.txt b/Documentation/devicetree/bindings/net/nfc/st95hf.txt
new file mode 100644
index 0000000..baa4819
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/st95hf.txt
@@ -0,0 +1,55 @@
+STMicroelectronics NFC Transceiver ST95HF
+-----------------------------------------
+
+ST NFC Transceiver is required to attach with SPI bus.
+ST95HF should be defined in DT as SPI slave device of SPI master
+with which transceiver is physically connected.
+The properties defined below are required to be the part of DT
+to include transceiver into the platform.
+
+Required properties:
+
+- reg: Address of SPI slave "transceiver" on SPI master bus.
+
+- compatible: should be "st,st95hf" for ST NFC transceiver
+
+- spi-max-frequency: Max. operating SPI frequency for transceiver.
+
+- st,st95hf-enable-gpio: GPIO line used to enable transceiver.
+
+- interrupt-parent : Standard way to specify the controller to which
+ transceiver interrupt is routed.
+
+- interrupts : Standard way to define device (transceiver's out) interrupt.
+
+Optional property:
+
+- st95hfvin-supply : This is an optional property.It contains a phandle to
+ transceiver regulator supply node in DT.
+
+Example:
+ spi@9840000 {
+ compatible = "st,comms-ssc4-spi";
+ reg = <0x9840000 0x110>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>;
+ clock-names = "ssc";
+ pinctrl-0 = <&pinctrl_spi0_default>;
+ pinctrl-names = "default";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cs-gpios = <&pio0 4>;
+ status = "okay";
+
+ st95hf@0{
+ reg = <0>;
+ compatible = "st,st95hf";
+ status = "okay";
+ spi-max-frequency = <1000000>;
+ st,st95hf-enable-gpio = <&pio4 0>;
+ interrupt-parent = <&pio0>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ };
+
+ };
+
--
1.8.2.1
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