Based on kernel version 4.2. Page generated on 2015-09-09 12:10 EST.
1 * STMicroelectronics SAS. ST NCI NFC Controller 2 3 Required properties: 4 - compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-i2c". 5 - clock-frequency: I²C work frequency. 6 - reg: address on the bus 7 - interrupt-parent: phandle for the interrupt gpio controller 8 - interrupts: GPIO interrupt to which the chip is connected 9 - reset-gpios: Output GPIO pin used to reset the ST21NFCB 10 11 Optional SoC Specific Properties: 12 - pinctrl-names: Contains only one value - "default". 13 - pintctrl-0: Specifies the pin control groups used for this controller. 14 15 Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2): 16 17 &i2c2 { 18 19 status = "okay"; 20 21 st21nfcb: st21nfcb@8 { 22 23 compatible = "st,st21nfcb-i2c"; 24 25 reg = <0x08>; 26 clock-frequency = <400000>; 27 28 interrupt-parent = <&gpio5>; 29 interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; 30 31 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 32 }; 33 };