394 	int chip_id, i;  in ltc2978_probe()  local
407 	chip_id = i2c_smbus_read_word_data(client, LTC2978_MFR_SPECIAL_ID);  in ltc2978_probe()
408 	if (chip_id < 0)  in ltc2978_probe()
409 		return chip_id;  in ltc2978_probe()
411 	if (chip_id == LTC2974_ID_REV1 || chip_id == LTC2974_ID_REV2) {  in ltc2978_probe()
413 	} else if (chip_id == LTC2977_ID) {  in ltc2978_probe()
415 	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2 ||  in ltc2978_probe()
416 		   chip_id == LTC2978A_ID) {  in ltc2978_probe()
418 	} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {  in ltc2978_probe()
420 	} else if ((chip_id & LTC3883_ID_MASK) == LTC3883_ID) {  in ltc2978_probe()
422 	} else if ((chip_id & LTM4676_ID_MASK) == LTM4676_ID) {  in ltc2978_probe()
425 		dev_err(&client->dev, "Unsupported chip ID 0x%x\n", chip_id);  in ltc2978_probe()