OFFSET_SLAVE_ADDR
mtk_i2c_writew(i2c, addr_reg, OFFSET_SLAVE_ADDR);
[OFFSET_SLAVE_ADDR] = 0x4,
[OFFSET_SLAVE_ADDR] = 0x4,
[OFFSET_SLAVE_ADDR] = 0x94,
mtk_i2c_readw(i2c, OFFSET_SLAVE_ADDR),