Add the device tree bindings for Samsung S3FWRN82 NFC controller.
S3FWRN82 is using NCI protocol and I2C communication interface.
Signed-off-by: Bongsu Jeon <bongsu.jeon@xxxxxxxxxxx>
---
.../devicetree/bindings/net/nfc/s3fwrn82.txt | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/nfc/s3fwrn82.txt
diff --git a/Documentation/devicetree/bindings/net/nfc/s3fwrn82.txt b/Documentation/devicetree/bindings/net/nfc/s3fwrn82.txt
new file mode 100644
index 000000000000..03ed880e1c7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/s3fwrn82.txt
@@ -0,0 +1,30 @@
+* Samsung S3FWRN82 NCI NFC Controller
+
+Required properties:
+- compatible: Should be "samsung,s3fwrn82-i2c".
+- reg: address on the bus
+- interrupts: GPIO interrupt to which the chip is connected
+- en-gpios: Output GPIO pin used for enabling/disabling the chip
+- wake-gpios: Output GPIO pin used to enter firmware mode and
+ sleep/wakeup control
+
+Example:
+
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ s3fwrn82@27 {
+ compatible = "samsung,s3fwrn82-i2c";
+ reg = <0x27>;
+
+ interrupt-parent = <&gpa1>;
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+
+ en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>;
+ wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>;
+ };
+ };
--
