LP5812_CHIP_ADDR_SHIFT
(chip->client->addr << LP5812_CHIP_ADDR_SHIFT) | reg_addr_bit8_9;
(chip->client->addr << LP5812_CHIP_ADDR_SHIFT) | reg_addr_bit8_9;
msg.addr = (chip->client->addr << LP5812_CHIP_ADDR_SHIFT) | reg_addr_bit8_9;