1 // SPDX-License-Identifier: GPL-2.0+
3 // da9052-regulator.c: Regulator driver for DA9052
28 #define DA9052_MIN_UA		0
33 #define DA9052_BUCK_ILIM_MASK_EVEN	0x0c
34 #define DA9052_BUCK_ILIM_MASK_ODD	0xc0
37 #define DA9052_ID_BUCK1		0
43 #define DA9052_ID_LDO3		6
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()
80 	return 0;  in verify_range()
89 	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKA_REG + offset/2);  in da9052_dcdc_get_current_limit()
90 	if (ret < 0)  in da9052_dcdc_get_current_limit()
96 	if (offset % 2 == 0)  in da9052_dcdc_get_current_limit()
99 		ret = (ret & DA9052_BUCK_ILIM_MASK_ODD) >> 6;  in da9052_dcdc_get_current_limit()
102 	if (regulator->da9052->chip_id == DA9052)  in da9052_dcdc_get_current_limit()
103 		row = 0;  in da9052_dcdc_get_current_limit()
104 	else if (offset == 0)  in da9052_dcdc_get_current_limit()
115 	int reg_val = 0;  in da9052_dcdc_set_current_limit()
119 	if (regulator->da9052->chip_id == DA9052)  in da9052_dcdc_set_current_limit()
120 		row = 0;  in da9052_dcdc_set_current_limit()
121 	else if (offset == 0)  in da9052_dcdc_set_current_limit()
124 	for (i = DA9052_CURRENT_RANGE - 1; i >= 0; i--) {  in da9052_dcdc_set_current_limit()
132 	if (i < 0)  in da9052_dcdc_set_current_limit()
133 		return -EINVAL;  in da9052_dcdc_set_current_limit()
138 	if (offset % 2 == 0)  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()
147 					 reg_val << 6);  in da9052_dcdc_set_current_limit()
154 	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 	struct da9052_regulator_info *info = regulator->info;  in da9052_map_voltage()
183 	if (ret < 0)  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()
199 	if (ret < 0)  in da9052_map_voltage()
209 	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()
215 	if (ret < 0)  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 	struct da9052_regulator_info *info = regulator->info;  in da9052_regulator_set_voltage_time_sel()
242 	int ret = 0;  in da9052_regulator_set_voltage_time_sel()
253 		ret = (new_sel - old_sel) * info->step_uV / 6250;  in da9052_regulator_set_voltage_time_sel()
294 		.n_voltages = (max - min) / step + 1, \
297 		.vsel_mask = (1 << (sbits)) - 1,\
316 		.n_voltages = (max - min) / step + 1, \
319 		.vsel_mask = (1 << (sbits)) - 1,\
330 	DA9052_DCDC(BUCK1, buck1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
331 	DA9052_DCDC(BUCK2, buck2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
332 	DA9052_DCDC(BUCK3, buck3, 25, 950, 2525, 6, 6, DA9052_SUPPLY_VBMEMGO),
333 	DA9052_DCDC(BUCK4, buck4, 50, 1800, 3600, 5, 6, 0),
334 	DA9052_LDO(LDO1, ldo1, 50, 600, 1800, 5, 6, 0),
335 	DA9052_LDO(LDO2, ldo2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
336 	DA9052_LDO(LDO3, ldo3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
337 	DA9052_LDO(LDO4, ldo4, 25, 1725, 3300, 6, 6, 0),
338 	DA9052_LDO(LDO5, ldo5, 50, 1200, 3600, 6, 6, 0),
339 	DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
340 	DA9052_LDO(LDO7, ldo7, 50, 1200, 3600, 6, 6, 0),
341 	DA9052_LDO(LDO8, ldo8, 50, 1200, 3600, 6, 6, 0),
342 	DA9052_LDO(LDO9, ldo9, 50, 1250, 3650, 6, 6, 0),
343 	DA9052_LDO(LDO10, ldo10, 50, 1200, 3600, 6, 6, 0),
347 	DA9052_DCDC(BUCK1, buck1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
348 	DA9052_DCDC(BUCK2, buck2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
349 	DA9052_DCDC(BUCK3, buck3, 25, 950, 2525, 6, 6, DA9052_SUPPLY_VBMEMGO),
350 	DA9052_DCDC(BUCK4, buck4, 25, 950, 2525, 6, 6, 0),
351 	DA9052_LDO(LDO1, ldo1, 50, 600, 1800, 5, 6, 0),
352 	DA9052_LDO(LDO2, ldo2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
353 	DA9052_LDO(LDO3, ldo3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
354 	DA9052_LDO(LDO4, ldo4, 25, 1725, 3300, 6, 6, 0),
355 	DA9052_LDO(LDO5, ldo5, 50, 1200, 3600, 6, 6, 0),
356 	DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
357 	DA9052_LDO(LDO7, ldo7, 50, 1200, 3600, 6, 6, 0),
358 	DA9052_LDO(LDO8, ldo8, 50, 1200, 3600, 6, 6, 0),
359 	DA9052_LDO(LDO9, ldo9, 50, 1250, 3650, 6, 6, 0),
360 	DA9052_LDO(LDO10, ldo10, 50, 1200, 3600, 6, 6, 0),
371 		for (i = 0; i < ARRAY_SIZE(da9052_regulator_info); i++) {  in find_regulator_info()
373 			if (info->reg_desc.id == id)  in find_regulator_info()
381 		for (i = 0; i < ARRAY_SIZE(da9053_regulator_info); i++) {  in find_regulator_info()
383 			if (info->reg_desc.id == id)  in find_regulator_info()
400 	regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9052_regulator),  in da9052_regulator_probe()
403 		return -ENOMEM;  in da9052_regulator_probe()
405 	da9052 = dev_get_drvdata(pdev->dev.parent);  in da9052_regulator_probe()
406 	pdata = dev_get_platdata(da9052->dev);  in da9052_regulator_probe()
407 	regulator->da9052 = da9052;  in da9052_regulator_probe()
409 	regulator->info = find_regulator_info(regulator->da9052->chip_id,  in da9052_regulator_probe()
410 					      cell->id);  in da9052_regulator_probe()
411 	if (regulator->info == NULL) {  in da9052_regulator_probe()
412 		dev_err(&pdev->dev, "invalid regulator ID specified\n");  in da9052_regulator_probe()
413 		return -EINVAL;  in da9052_regulator_probe()
416 	config.dev = da9052->dev;  in da9052_regulator_probe()
418 	config.regmap = da9052->regmap;  in da9052_regulator_probe()
420 		config.init_data = pdata->regulators[cell->id];  in da9052_regulator_probe()
422 	regulator->rdev = devm_regulator_register(&pdev->dev,  in da9052_regulator_probe()
423 						  &regulator->info->reg_desc,  in da9052_regulator_probe()
425 	if (IS_ERR(regulator->rdev)) {  in da9052_regulator_probe()
426 		dev_err(&pdev->dev, "failed to register regulator %s\n",  in da9052_regulator_probe()
427 			regulator->info->reg_desc.name);  in da9052_regulator_probe()
428 		return PTR_ERR(regulator->rdev);  in da9052_regulator_probe()
433 	return 0;  in da9052_regulator_probe()
439 		.name = "da9052-regulator",
458 MODULE_ALIAS("platform:da9052-regulator");