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- * 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.
- - ese-present: Specifies that an ese is physically connected to the nfc
- controller.
- - uicc-present: Specifies that the uicc swp signal can be physically
- connected to the nfc 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>;
- ese-present;
- uicc-present;
- };
- };
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