OFFSET_START
mtk_i2c_writew(i2c, start_reg, OFFSET_START);
I2C_TRANSAC_START, OFFSET_START);
[OFFSET_START] = 0x24,
[OFFSET_START] = 0x24,
[OFFSET_START] = 0x24,
mtk_i2c_writew(i2c, I2C_CHN_CLR_FLAG, OFFSET_START);
mtk_i2c_readw(i2c, OFFSET_START),