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* STMicroelectronics SAS. ST21NFCA NFC Controller
Required properties:
- compatible: Should be "st,st21nfca-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
- enable-gpios: Output GPIO pin used for enabling/disabling the ST21NFCA
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 ST21NFCA on I2C2):
&i2c2 {
status = "okay";
st21nfca: st21nfca@1 {
compatible = "st,st21nfca-i2c";
reg = <0x01>;
clock-frequency = <400000>;
interrupt-parent = <&gpio5>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
ese-present;
uicc-present;
};
};
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