1 // SPDX-License-Identifier: GPL-2.0-only
3  * max8907-regulator.c -- support regulators in max8907
5  * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>
6  * Copyright (C) 2010-2012, NVIDIA CORPORATION. All rights reserved.
8  * Portions based on drivers/regulator/tps65910-regulator.c,
51 		.n_voltages = ((max) - (min)) / (step) + 1, \
94 		.n_voltages = ((max) - (min)) / (step) + 1, \
150 	REG_LDO(SD1, "in-v1", MAX8907_REG_SDCTL1, 650000, 2225000, 25000),
151 	REG_LDO(SD2, "in-v2", MAX8907_REG_SDCTL2, 637500, 1425000, 12500),
152 	REG_LDO(SD3, "in-v3", MAX8907_REG_SDCTL3, 750000, 3900000, 50000),
156 	LDO_750_50(LDO4, "in4", MAX8907_REG_LDOCTL4),
157 	LDO_750_50(LDO5, "in5", MAX8907_REG_LDOCTL5),
226 	np = pdev->dev.parent->of_node;  in max8907_regulator_parse_dt()
232 		dev_err(&pdev->dev, "regulators node not found\n");  in max8907_regulator_parse_dt()
233 		return -EINVAL;  in max8907_regulator_parse_dt()
236 	ret = of_regulator_match(&pdev->dev, regulators, max8907_matches,  in max8907_regulator_parse_dt()
240 		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",  in max8907_regulator_parse_dt()
276 	struct max8907 *max8907 = dev_get_drvdata(pdev->dev.parent);  in max8907_regulator_probe()
277 	struct max8907_platform_data *pdata = dev_get_platdata(max8907->dev);  in max8907_regulator_probe()
290 	pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);  in max8907_regulator_probe()
292 		return -ENOMEM;  in max8907_regulator_probe()
296 	memcpy(pmic->desc, max8907_regulators, sizeof(pmic->desc));  in max8907_regulator_probe()
299 	ret = regmap_read(max8907->regmap_gen, MAX8907_REG_II2RR, &val);  in max8907_regulator_probe()
305 		pmic->desc[MAX8907_SD1].min_uV = 637500;  in max8907_regulator_probe()
306 		pmic->desc[MAX8907_SD1].uV_step = 12500;  in max8907_regulator_probe()
307 		pmic->desc[MAX8907_SD1].n_voltages =  in max8907_regulator_probe()
308 						(1425000 - 637500) / 12500 + 1;  in max8907_regulator_probe()
314 		config.dev = pdev->dev.parent;  in max8907_regulator_probe()
316 			idata = pdata->init_data[i];  in max8907_regulator_probe()
321 		config.regmap = max8907->regmap_gen;  in max8907_regulator_probe()
324 		switch (pmic->desc[i].id) {  in max8907_regulator_probe()
326 			if (idata && idata->constraints.name)  in max8907_regulator_probe()
327 				mbatt_rail_name = idata->constraints.name;  in max8907_regulator_probe()
329 				mbatt_rail_name = pmic->desc[i].name;  in max8907_regulator_probe()
334 			idata->supply_regulator = mbatt_rail_name;  in max8907_regulator_probe()
338 		if (pmic->desc[i].ops == &max8907_ldo_ops) {  in max8907_regulator_probe()
339 			ret = regmap_read(config.regmap, pmic->desc[i].enable_reg,  in max8907_regulator_probe()
346 				pmic->desc[i].ops = &max8907_ldo_hwctl_ops;  in max8907_regulator_probe()
347 		} else if (pmic->desc[i].ops == &max8907_out5v_ops) {  in max8907_regulator_probe()
348 			ret = regmap_read(config.regmap, pmic->desc[i].enable_reg,  in max8907_regulator_probe()
356 				pmic->desc[i].ops = &max8907_out5v_hwctl_ops;  in max8907_regulator_probe()
359 		rdev = devm_regulator_register(&pdev->dev,  in max8907_regulator_probe()
360 						&pmic->desc[i], &config);  in max8907_regulator_probe()
362 			dev_err(&pdev->dev,  in max8907_regulator_probe()
364 				pmic->desc[i].name);  in max8907_regulator_probe()
374 		   .name = "max8907-regulator",
395 MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@maxim-ic.com>");
397 MODULE_ALIAS("platform:max8907-regulator");