JZ4780_I2C_ENB_I2C
if (!(regval & JZ4780_I2C_ENB_I2C))
if (regval & JZ4780_I2C_ENB_I2C)
tmp &= ~JZ4780_I2C_ENB_I2C;
tmp |= JZ4780_I2C_ENB_I2C;