1 // SPDX-License-Identifier: GPL-2.0+
3 // da9052-regulator.c: Regulator driver for DA9052
45 #define DA9052_ID_LDO5		8
53 	{700000, 800000, 1000000, 1200000},	/* DA9052-BC BUCKs */
54 	{1600000, 2000000, 2400000, 3000000},	/* DA9053-AA/Bx BUCK-CORE */
55 	{800000, 1000000, 1200000, 1500000},	/* DA9053-AA/Bx BUCK-PRO,
56 						 * BUCK-MEM and BUCK-PERI
77 	if (min_uV > info->max_uV || max_uV < info->min_uV)  in verify_range()
78 		return -EINVAL;  in verify_range()
89 	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKA_REG + offset/2);  in da9052_dcdc_get_current_limit()
102 	if (regulator->da9052->chip_id == DA9052)  in da9052_dcdc_get_current_limit()
119 	if (regulator->da9052->chip_id == DA9052)  in da9052_dcdc_set_current_limit()
124 	for (i = DA9052_CURRENT_RANGE - 1; i >= 0; i--) {  in da9052_dcdc_set_current_limit()
133 		return -EINVAL;  in da9052_dcdc_set_current_limit()
139 		return da9052_reg_update(regulator->da9052,  in da9052_dcdc_set_current_limit()
144 		return da9052_reg_update(regulator->da9052,  in da9052_dcdc_set_current_limit()
154 	const struct da9052_regulator_info *info = regulator->info;  in da9052_list_voltage()
158 	if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)  in da9052_list_voltage()
160 		volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)  in da9052_list_voltage()
161 			  + info->min_uV);  in da9052_list_voltage()
162 		volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)  in da9052_list_voltage()
165 		volt_uV = (selector * info->step_uV) + info->min_uV;  in da9052_list_voltage()
168 	if (volt_uV > info->max_uV)  in da9052_list_voltage()
169 		return -EINVAL;  in da9052_list_voltage()
178 	const struct da9052_regulator_info *info = regulator->info;  in da9052_map_voltage()
186 	if (min_uV < info->min_uV)  in da9052_map_voltage()
187 		min_uV = info->min_uV;  in da9052_map_voltage()
189 	if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)  in da9052_map_voltage()
192 			      DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,  in da9052_map_voltage()
195 		sel = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);  in da9052_map_voltage()
209 	const struct da9052_regulator_info *info = regulator->info;  in da9052_regulator_set_voltage_sel()
213 	ret = da9052_reg_update(regulator->da9052, rdev->desc->vsel_reg,  in da9052_regulator_set_voltage_sel()
214 				rdev->desc->vsel_mask, selector);  in da9052_regulator_set_voltage_sel()
227 		ret = da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,  in da9052_regulator_set_voltage_sel()
228 					info->activate_bit, info->activate_bit);  in da9052_regulator_set_voltage_sel()
240 	const struct da9052_regulator_info *info = regulator->info;  in da9052_regulator_set_voltage_time_sel()
253 		ret = DIV_ROUND_UP(abs(new_sel - old_sel) * info->step_uV,  in da9052_regulator_set_voltage_time_sel()
295 		.n_voltages = (max - min) / step + 1, \
298 		.vsel_mask = (1 << (sbits)) - 1,\
317 		.n_voltages = (max - min) / step + 1, \
320 		.vsel_mask = (1 << (sbits)) - 1,\
340 	DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
357 	DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
374 			if (info->reg_desc.id == id)  in find_regulator_info()
384 			if (info->reg_desc.id == id)  in find_regulator_info()
401 	regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9052_regulator),  in da9052_regulator_probe()
404 		return -ENOMEM;  in da9052_regulator_probe()
406 	da9052 = dev_get_drvdata(pdev->dev.parent);  in da9052_regulator_probe()
407 	pdata = dev_get_platdata(da9052->dev);  in da9052_regulator_probe()
408 	regulator->da9052 = da9052;  in da9052_regulator_probe()
410 	regulator->info = find_regulator_info(regulator->da9052->chip_id,  in da9052_regulator_probe()
411 					      cell->id);  in da9052_regulator_probe()
412 	if (regulator->info == NULL) {  in da9052_regulator_probe()
413 		dev_err(&pdev->dev, "invalid regulator ID specified\n");  in da9052_regulator_probe()
414 		return -EINVAL;  in da9052_regulator_probe()
417 	config.dev = da9052->dev;  in da9052_regulator_probe()
419 	config.regmap = da9052->regmap;  in da9052_regulator_probe()
421 		config.init_data = pdata->regulators[cell->id];  in da9052_regulator_probe()
423 	regulator->rdev = devm_regulator_register(&pdev->dev,  in da9052_regulator_probe()
424 						  &regulator->info->reg_desc,  in da9052_regulator_probe()
426 	if (IS_ERR(regulator->rdev)) {  in da9052_regulator_probe()
427 		dev_err(&pdev->dev, "failed to register regulator %s\n",  in da9052_regulator_probe()
428 			regulator->info->reg_desc.name);  in da9052_regulator_probe()
429 		return PTR_ERR(regulator->rdev);  in da9052_regulator_probe()
440 		.name = "da9052-regulator",
460 MODULE_ALIAS("platform:da9052-regulator");