JZ4730_PINS_PER_PAIRED_REG
u8 reg = offset < JZ4730_PINS_PER_PAIRED_REG ? reg_lower : reg_upper;
unsigned int idx = offset % JZ4730_PINS_PER_PAIRED_REG;
unsigned int idx = pin % JZ4730_PINS_PER_PAIRED_REG;
u8 reg = (pin % PINS_PER_GPIO_CHIP) < JZ4730_PINS_PER_PAIRED_REG ? reg_lower : reg_upper;