I2C_SLAVE_ADDR1
for (i = I2C_SLAVE_ADDR1; i < I2C_NUM_OWN_ADDR_SUPPORTED; i++) {
npcm_i2c_slave_enable(bus, I2C_SLAVE_ADDR1, client->addr, true);
for (i = I2C_SLAVE_ADDR1; i < I2C_NUM_OWN_ADDR_SUPPORTED; i++)
npcm_i2c_slave_enable(bus, I2C_SLAVE_ADDR1, addr, true);