1 // SPDX-License-Identifier: GPL-2.0-or-later
24 #define TPS53679_PROT_VR12_5MV		0x01 /* VR12.0 mode, 5-mV DAC */
25 #define TPS53679_PROT_VR12_5_10MV	0x02 /* VR12.5 mode, 10-mV DAC */
26 #define TPS53679_PROT_VR13_10MV		0x04 /* VR13.0 mode, 10-mV DAC */
27 #define TPS53679_PROT_IMVP8_5MV		0x05 /* IMVP8 mode, 5-mV DAC */
28 #define TPS53679_PROT_VR13_5MV		0x07 /* VR13.0 mode, 5-mV DAC */
45 	for (i = 0; i < info->pages; i++) {  in tps53679_identify_mode()
56 			info->vrm_version[i] = vr13;  in tps53679_identify_mode()
61 			info->vrm_version[i] = vr12;  in tps53679_identify_mode()
64 			return -EINVAL;  in tps53679_identify_mode()
76 	/* On TPS53681, only channel A provides per-phase output current */  in tps53679_identify_phases()
80 	info->phases[0] = (ret & 0x07) + 1;  in tps53679_identify_phases()
95 		dev_err(&client->dev, "Unexpected PMBus revision 0x%x\n", ret);  in tps53679_identify_chip()
96 		return -ENODEV;  in tps53679_identify_chip()
103 		dev_err(&client->dev, "Unexpected device ID 0x%x\n", buf[0]);  in tps53679_identify_chip()
104 		return -ENODEV;  in tps53679_identify_chip()
110  * Common identification function for chips with multi-phase support.
147 				   int phase, int reg)  in tps53681_read_word_data()  argument
151 	 * the chip datasheet is a bit vague. It says "PHASE must be set to  in tps53681_read_word_data()
152 	 * FFh to access all phases simultaneously. PHASE may also be set to  in tps53681_read_word_data()
153 	 * 80h readack (!) the total phase current".  in tps53681_read_word_data()
155 	 * current for all phases if the phase is set to 0xff. Instead, it  in tps53681_read_word_data()
156 	 * appears to report the current of one of the phases. Override phase  in tps53681_read_word_data()
159 	if (reg == PMBUS_READ_IOUT && page == 0 && phase == 0xff)  in tps53681_read_word_data()
161 	return -ENODATA;  in tps53681_read_word_data()
190 	struct device *dev = &client->dev;  in tps53679_probe()
194 	if (dev->of_node)  in tps53679_probe()
197 		chip_id = i2c_match_id(tps53679_id, client)->driver_data;  in tps53679_probe()
201 		return -ENOMEM;  in tps53679_probe()
206 		info->pages = TPS53647_PAGE_NUM;  in tps53679_probe()
207 		info->identify = tps53679_identify;  in tps53679_probe()
211 		info->pages = TPS53679_PAGE_NUM;  in tps53679_probe()
212 		info->identify = tps53679_identify;  in tps53679_probe()
215 		info->pages = TPS53679_PAGE_NUM;  in tps53679_probe()
216 		info->phases[0] = 6;  in tps53679_probe()
217 		info->identify = tps53681_identify;  in tps53679_probe()
218 		info->read_word_data = tps53681_read_word_data;  in tps53679_probe()
221 		return -ENODEV;  in tps53679_probe()