1 // SPDX-License-Identifier: GPL-2.0
53 	ret = regmap_write(rdev->regmap, MP8859_VOUT_L_REG, sel & 0x7);  in mp8859_set_voltage_sel()
57 	ret = regmap_write(rdev->regmap, MP8859_VOUT_H_REG, sel >> 3);  in mp8859_set_voltage_sel()
61 	ret = regmap_update_bits(rdev->regmap, MP8859_VOUT_GO_REG,  in mp8859_set_voltage_sel()
72 	ret = regmap_read(rdev->regmap, MP8859_VOUT_H_REG, &val_tmp);  in mp8859_get_voltage_sel()
78 	ret = regmap_read(rdev->regmap, MP8859_VOUT_L_REG, &val_tmp);  in mp8859_get_voltage_sel()
93 		change = from - to;  in mp8859_set_voltage_time_sel()
95 		change = to - from;  in mp8859_set_voltage_time_sel()
105 	ret = regmap_read(rdev->regmap, MP8859_CTL1_REG, &val);  in mp8859_get_mode()
107 		dev_err(&rdev->dev, "Failed to read mode: %d\n", ret);  in mp8859_get_mode()
129 		return -EINVAL;  in mp8859_set_mode()
132 	return regmap_update_bits(rdev->regmap, MP8859_CTL1_REG,  in mp8859_set_mode()
145 		return -EINVAL;  in mp8859_set_current_limit()
147 		return -EINVAL;  in mp8859_set_current_limit()
153 	ret = regmap_read(rdev->regmap, MP8859_STATUS_REG, &cur_val);  in mp8859_set_current_limit()
157 		return regmap_update_bits(rdev->regmap, MP8859_IOUT_LIM_REG,  in mp8859_set_current_limit()
161 	ret = regmap_read(rdev->regmap, MP8859_IOUT_LIM_REG, &cur_val);  in mp8859_set_current_limit()
166 		for (i = cur_val; i >= new_val; i--) {  in mp8859_set_current_limit()
167 			ret = regmap_update_bits(rdev->regmap,  in mp8859_set_current_limit()
170 						 cur_val - i);  in mp8859_set_current_limit()
176 			ret = regmap_update_bits(rdev->regmap,  in mp8859_set_current_limit()
194 	ret = regmap_read(rdev->regmap, MP8859_CTL1_REG, &val);  in mp8859_get_status()
200 	ret = regmap_read(rdev->regmap, MP8859_STATUS_REG, &val);  in mp8859_get_status()
219 	ret = regmap_read(rdev->regmap, MP8859_CTL1_REG, &enabled);  in mp8859_get_error_flags()
224 	ret = regmap_read(rdev->regmap, MP8859_STATUS_REG, &status);  in mp8859_get_error_flags()
327 	struct regulator_config config = {.dev = &i2c->dev};  in mp8859_i2c_probe()
334 		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);  in mp8859_i2c_probe()
340 		dev_err(&i2c->dev, "Failed to read manufacturer ID: %d\n", ret);  in mp8859_i2c_probe()
344 		dev_err(&i2c->dev, "Manufacturer ID %x != 9\n", val);  in mp8859_i2c_probe()
345 		return -EINVAL;  in mp8859_i2c_probe()
350 		dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);  in mp8859_i2c_probe()
354 		dev_err(&i2c->dev, "Manufacturer ID %x != 0x58\n", val);  in mp8859_i2c_probe()
355 		return -EINVAL;  in mp8859_i2c_probe()
360 		dev_err(&i2c->dev, "Failed to read device revision: %d\n", ret);  in mp8859_i2c_probe()
365 		dev_err(&i2c->dev, "Failed to read device ID1: %d\n", ret);  in mp8859_i2c_probe()
368 	dev_info(&i2c->dev, "MP8859-%04d revision %d\n", val, rev);  in mp8859_i2c_probe()
370 	rdev = devm_regulator_register(&i2c->dev, &mp8859_regulators[0],  in mp8859_i2c_probe()
375 		dev_err(&i2c->dev, "failed to register %s: %d\n",  in mp8859_i2c_probe()