1*6281100eSChanwoo Choi 2*6281100eSChanwoo Choi* Richtek RT8973A - Micro USB Switch device 3*6281100eSChanwoo Choi 4*6281100eSChanwoo ChoiThe Richtek RT8973A is Micro USB Switch with OVP and I2C interface. The RT8973A 5*6281100eSChanwoo Choiis a USB port accessory detector and switch that is optimized to protect low 6*6281100eSChanwoo Choivoltage system from abnormal high input voltage (up to 28V) and supports high 7*6281100eSChanwoo Choispeed USB operation. Also, RT8973A support 'auto-configuration' mode. 8*6281100eSChanwoo ChoiIf auto-configuration mode is enabled, RT8973A would control internal h/w patch 9*6281100eSChanwoo Choifor USB D-/D+ switching. 10*6281100eSChanwoo Choi 11*6281100eSChanwoo ChoiRequired properties: 12*6281100eSChanwoo Choi- compatible: Should be "richtek,rt8973a-muic" 13*6281100eSChanwoo Choi- reg: Specifies the I2C slave address of the MUIC block. It should be 0x14 14*6281100eSChanwoo Choi- interrupts: Interrupt specifiers for detection interrupt sources. 15*6281100eSChanwoo Choi 16*6281100eSChanwoo ChoiExample: 17*6281100eSChanwoo Choi 18*6281100eSChanwoo Choi rt8973a@14 { 19*6281100eSChanwoo Choi compatible = "richtek,rt8973a-muic"; 20*6281100eSChanwoo Choi interrupt-parent = <&gpx1>; 21*6281100eSChanwoo Choi interrupts = <5 0>; 22*6281100eSChanwoo Choi reg = <0x14>; 23*6281100eSChanwoo Choi }; 24