1e00ad7efSChris Packham* NXP PCA PCA9564/PCA9665 I2C controller 2e00ad7efSChris Packham 3e00ad7efSChris PackhamThe PCA9564/PCA9665 serves as an interface between most standard 4e00ad7efSChris Packhamparallel-bus microcontrollers/microprocessors and the serial I2C-bus 5e00ad7efSChris Packhamand allows the parallel bus system to communicate bi-directionally 6e00ad7efSChris Packhamwith the I2C-bus. 7e00ad7efSChris Packham 8e00ad7efSChris PackhamRequired properties : 9e00ad7efSChris Packham 10e00ad7efSChris Packham - reg : Offset and length of the register set for the device 11e00ad7efSChris Packham - compatible : one of "nxp,pca9564" or "nxp,pca9665" 12e00ad7efSChris Packham 13e00ad7efSChris PackhamOptional properties 14e00ad7efSChris Packham - interrupts : the interrupt number 15e00ad7efSChris Packham - reset-gpios : gpio specifier for gpio connected to RESET_N pin. As the line 16e00ad7efSChris Packham is active low, it should be marked GPIO_ACTIVE_LOW. 17e00ad7efSChris Packham - clock-frequency : I2C bus frequency. 18e00ad7efSChris Packham 19e00ad7efSChris PackhamExample: 20e00ad7efSChris Packham i2c0: i2c@80000 { 21e00ad7efSChris Packham compatible = "nxp,pca9564"; 22e00ad7efSChris Packham #address-cells = <1>; 23e00ad7efSChris Packham #size-cells = <0>; 24e00ad7efSChris Packham reg = <0x80000 0x4>; 25e00ad7efSChris Packham reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; 26e00ad7efSChris Packham clock-frequency = <100000>; 27e00ad7efSChris Packham }; 28