1 // SPDX-License-Identifier: GPL-2.0-or-later
27 #define TPS53679_PROT_VR12_5MV		0x01 /* VR12.0 mode, 5-mV DAC */
28 #define TPS53679_PROT_VR12_5_10MV	0x02 /* VR12.5 mode, 10-mV DAC */
29 #define TPS53679_PROT_VR13_10MV		0x04 /* VR13.0 mode, 10-mV DAC */
30 #define TPS53679_PROT_IMVP8_5MV		0x05 /* IMVP8 mode, 5-mV DAC */
31 #define TPS53679_PROT_VR13_5MV		0x07 /* VR13.0 mode, 5-mV DAC */
48 	for (i = 0; i < info->pages; i++) {  in tps53679_identify_mode()
59 			info->vrm_version[i] = vr13;  in tps53679_identify_mode()
64 			info->vrm_version[i] = vr12;  in tps53679_identify_mode()
67 			return -EINVAL;  in tps53679_identify_mode()
79 	/* On TPS53681, only channel A provides per-phase output current */  in tps53679_identify_phases()
83 	info->phases[0] = (ret & 0x07) + 1;  in tps53679_identify_phases()
98 		dev_err(&client->dev, "Unexpected PMBus revision 0x%x\n", ret);  in tps53679_identify_chip()
99 		return -ENODEV;  in tps53679_identify_chip()
106 		dev_err(&client->dev, "Unexpected device ID 0x%x\n", buf[0]);  in tps53679_identify_chip()
107 		return -ENODEV;  in tps53679_identify_chip()
113  * Common identification function for chips with multi-phase support.
160 		dev_err(&client->dev, "Unexpected device ID: %s\n", buf);  in tps53676_identify()
161 		return -ENODEV;  in tps53676_identify()
168 		return -EIO;  in tps53676_identify()
178 	info->format[PSC_VOLTAGE_OUT] = linear;  in tps53676_identify()
179 	info->pages = 1;  in tps53676_identify()
180 	info->phases[0] = phases_a;  in tps53676_identify()
182 		info->pages = 2;  in tps53676_identify()
183 		info->phases[1] = phases_b;  in tps53676_identify()
189 				   int phase, int reg)  in tps53681_read_word_data()  argument
193 	 * the chip datasheet is a bit vague. It says "PHASE must be set to  in tps53681_read_word_data()
194 	 * FFh to access all phases simultaneously. PHASE may also be set to  in tps53681_read_word_data()
195 	 * 80h readack (!) the total phase current".  in tps53681_read_word_data()
197 	 * current for all phases if the phase is set to 0xff. Instead, it  in tps53681_read_word_data()
198 	 * appears to report the current of one of the phases. Override phase  in tps53681_read_word_data()
201 	if (reg == PMBUS_READ_IOUT && page == 0 && phase == 0xff)  in tps53681_read_word_data()
203 	return -ENODATA;  in tps53681_read_word_data()
233 	struct device *dev = &client->dev;  in tps53679_probe()
237 	if (dev->of_node)  in tps53679_probe()
240 		chip_id = i2c_match_id(tps53679_id, client)->driver_data;  in tps53679_probe()
244 		return -ENOMEM;  in tps53679_probe()
249 		info->pages = TPS53647_PAGE_NUM;  in tps53679_probe()
250 		info->identify = tps53679_identify;  in tps53679_probe()
253 		info->identify = tps53676_identify;  in tps53679_probe()
257 		info->pages = TPS53679_PAGE_NUM;  in tps53679_probe()
258 		info->identify = tps53679_identify;  in tps53679_probe()
261 		info->pages = TPS53679_PAGE_NUM;  in tps53679_probe()
262 		info->phases[0] = 6;  in tps53679_probe()
263 		info->identify = tps53681_identify;  in tps53679_probe()
264 		info->read_word_data = tps53681_read_word_data;  in tps53679_probe()
267 		return -ENODEV;  in tps53679_probe()