From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- .../devicetree/bindings/net/nfc/st-nci.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/nfc/st-nci.txt (limited to 'Documentation/devicetree/bindings/net/nfc/st-nci.txt') diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci.txt b/Documentation/devicetree/bindings/net/nfc/st-nci.txt new file mode 100644 index 000000000..d707588ed --- /dev/null +++ b/Documentation/devicetree/bindings/net/nfc/st-nci.txt @@ -0,0 +1,33 @@ +* STMicroelectronics SAS. ST NCI NFC Controller + +Required properties: +- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-i2c". +- clock-frequency: I²C work frequency. +- reg: address on the bus +- interrupt-parent: phandle for the interrupt gpio controller +- interrupts: GPIO interrupt to which the chip is connected +- reset-gpios: Output GPIO pin used to reset the ST21NFCB + +Optional SoC Specific Properties: +- pinctrl-names: Contains only one value - "default". +- pintctrl-0: Specifies the pin control groups used for this controller. + +Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2): + +&i2c2 { + + status = "okay"; + + st21nfcb: st21nfcb@8 { + + compatible = "st,st21nfcb-i2c"; + + reg = <0x08>; + clock-frequency = <400000>; + + interrupt-parent = <&gpio5>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; + + reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; + }; +}; -- cgit v1.2.3-54-g00ecf