BCM_PWM_MEM_WRITE
BCM_PWM_MEM_WRITE(sc, arg2, reg);
#define W_CTL(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x00, _val)
#define W_STA(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x04, _val)
#define W_RNG(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x10, _val)
#define W_DAT(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x14, _val)
#define W_RNG2(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x20, _val)
#define W_DAT2(_sc, _val) BCM_PWM_MEM_WRITE(_sc, 0x24, _val)