1*c66ec88fSEmmanuel Vadot* STMicroelectronics SAS. ST21NFCA NFC Controller 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotRequired properties: 4*c66ec88fSEmmanuel Vadot- compatible: Should be "st,st21nfca-i2c". 5*c66ec88fSEmmanuel Vadot- clock-frequency: I²C work frequency. 6*c66ec88fSEmmanuel Vadot- reg: address on the bus 7*c66ec88fSEmmanuel Vadot- enable-gpios: Output GPIO pin used for enabling/disabling the ST21NFCA 8*c66ec88fSEmmanuel Vadot 9*c66ec88fSEmmanuel VadotOptional SoC Specific Properties: 10*c66ec88fSEmmanuel Vadot- pinctrl-names: Contains only one value - "default". 11*c66ec88fSEmmanuel Vadot- pintctrl-0: Specifies the pin control groups used for this controller. 12*c66ec88fSEmmanuel Vadot- ese-present: Specifies that an ese is physically connected to the nfc 13*c66ec88fSEmmanuel Vadotcontroller. 14*c66ec88fSEmmanuel Vadot- uicc-present: Specifies that the uicc swp signal can be physically 15*c66ec88fSEmmanuel Vadotconnected to the nfc controller. 16*c66ec88fSEmmanuel Vadot 17*c66ec88fSEmmanuel VadotExample (for ARM-based BeagleBoard xM with ST21NFCA on I2C2): 18*c66ec88fSEmmanuel Vadot 19*c66ec88fSEmmanuel Vadot&i2c2 { 20*c66ec88fSEmmanuel Vadot 21*c66ec88fSEmmanuel Vadot 22*c66ec88fSEmmanuel Vadot st21nfca: st21nfca@1 { 23*c66ec88fSEmmanuel Vadot 24*c66ec88fSEmmanuel Vadot compatible = "st,st21nfca-i2c"; 25*c66ec88fSEmmanuel Vadot 26*c66ec88fSEmmanuel Vadot reg = <0x01>; 27*c66ec88fSEmmanuel Vadot clock-frequency = <400000>; 28*c66ec88fSEmmanuel Vadot 29*c66ec88fSEmmanuel Vadot interrupt-parent = <&gpio5>; 30*c66ec88fSEmmanuel Vadot interrupts = <2 IRQ_TYPE_LEVEL_LOW>; 31*c66ec88fSEmmanuel Vadot 32*c66ec88fSEmmanuel Vadot enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 33*c66ec88fSEmmanuel Vadot 34*c66ec88fSEmmanuel Vadot ese-present; 35*c66ec88fSEmmanuel Vadot uicc-present; 36*c66ec88fSEmmanuel Vadot }; 37*c66ec88fSEmmanuel Vadot}; 38