1 // SPDX-License-Identifier: GPL-2.0+
3 // SLG51000 High PSRR, Multi-Output Regulators
20 #include "slg51000-regulator.h"
182 	.enable = regulator_enable_regmap,
192 	.enable = regulator_enable_regmap,
203 	ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0,  in slg51000_of_parse_cb()
206 					   "gpio-en-ldo");  in slg51000_of_parse_cb()
208 		config->ena_gpiod = ena_gpiod;  in slg51000_of_parse_cb()
258 		chip->rdesc[id] = &regls_desc[id];  in slg51000_regulator_init()
259 		rdesc = chip->rdesc[id];  in slg51000_regulator_init()
260 		config.regmap = chip->regmap;  in slg51000_regulator_init()
261 		config.dev = chip->dev;  in slg51000_regulator_init()
264 		ret = regmap_bulk_read(chip->regmap, min_regs[id],  in slg51000_regulator_init()
267 			dev_err(chip->dev,  in slg51000_regulator_init()
280 			ret = regmap_read(chip->regmap, reg, &val);  in slg51000_regulator_init()
282 				dev_err(chip->dev,  in slg51000_regulator_init()
288 			rdesc->linear_min_sel = vsel_range[0];  in slg51000_regulator_init()
289 			rdesc->n_voltages = vsel_range[1] + 1;  in slg51000_regulator_init()
291 				rdesc->min_uV = SLG51000_LDOHP_HV_MIN  in slg51000_regulator_init()
293 						   * rdesc->uV_step);  in slg51000_regulator_init()
295 				rdesc->min_uV = SLG51000_LDOHP_LV_MIN  in slg51000_regulator_init()
297 						   * rdesc->uV_step);  in slg51000_regulator_init()
307 			ret = regmap_read(chip->regmap, reg, &val);  in slg51000_regulator_init()
309 				dev_err(chip->dev,  in slg51000_regulator_init()
315 				rdesc->ops = &slg51000_switch_ops;  in slg51000_regulator_init()
316 				rdesc->n_voltages = 0;  in slg51000_regulator_init()
317 				rdesc->min_uV = 0;  in slg51000_regulator_init()
318 				rdesc->uV_step = 0;  in slg51000_regulator_init()
319 				rdesc->linear_min_sel = 0;  in slg51000_regulator_init()
325 			rdesc->linear_min_sel = vsel_range[0];  in slg51000_regulator_init()
326 			rdesc->n_voltages = vsel_range[1] + 1;  in slg51000_regulator_init()
327 			rdesc->min_uV = rdesc->min_uV  in slg51000_regulator_init()
328 					+ (vsel_range[0] * rdesc->uV_step);  in slg51000_regulator_init()
332 		chip->rdev[id] = devm_regulator_register(chip->dev, rdesc,  in slg51000_regulator_init()
334 		if (IS_ERR(chip->rdev[id])) {  in slg51000_regulator_init()
335 			ret = PTR_ERR(chip->rdev[id]);  in slg51000_regulator_init()
336 			dev_err(chip->dev,  in slg51000_regulator_init()
338 				chip->rdesc[id]->name, ret);  in slg51000_regulator_init()
349 	struct regmap *regmap = chip->regmap;  in slg51000_irq_handler()
359 			dev_err(chip->dev,  in slg51000_irq_handler()
367 		dev_err(chip->dev,  in slg51000_irq_handler()
374 		dev_err(chip->dev,  in slg51000_irq_handler()
381 		dev_info(chip->dev,  in slg51000_irq_handler()
389 			regulator_notifier_call_chain(chip->rdev[i],  in slg51000_irq_handler()
393 				dev_warn(chip->dev,  in slg51000_irq_handler()
394 					 "Over-current limit(ldo%d)\n", i + 1);  in slg51000_irq_handler()
404 				regulator_notifier_call_chain(chip->rdev[i],  in slg51000_irq_handler()
411 			dev_warn(chip->dev, "High temperature warning!\n");  in slg51000_irq_handler()
422 	ret = regmap_read(chip->regmap, SLG51000_SYSCTL_FAULT_LOG1, &val);  in slg51000_clear_fault_log()
424 		dev_err(chip->dev, "Failed to read Fault log register\n");  in slg51000_clear_fault_log()
429 		dev_dbg(chip->dev, "Fault log: FLT_OVER_TEMP\n");  in slg51000_clear_fault_log()
431 		dev_dbg(chip->dev, "Fault log: FLT_POWER_SEQ_CRASH_REQ\n");  in slg51000_clear_fault_log()
433 		dev_dbg(chip->dev, "Fault log: FLT_RST\n");  in slg51000_clear_fault_log()
435 		dev_dbg(chip->dev, "Fault log: FLT_POR\n");  in slg51000_clear_fault_log()
440 	struct device *dev = &client->dev;  in slg51000_i2c_probe()
447 		return -ENOMEM;  in slg51000_i2c_probe()
457 		chip->cs_gpiod = cs_gpiod;  in slg51000_i2c_probe()
463 	chip->chip_irq = client->irq;  in slg51000_i2c_probe()
464 	chip->dev = dev;  in slg51000_i2c_probe()
465 	chip->regmap = devm_regmap_init_i2c(client, &slg51000_regmap_config);  in slg51000_i2c_probe()
466 	if (IS_ERR(chip->regmap)) {  in slg51000_i2c_probe()
467 		error = PTR_ERR(chip->regmap);  in slg51000_i2c_probe()
475 		dev_err(chip->dev, "Failed to init regulator(%d)\n", ret);  in slg51000_i2c_probe()
481 	if (chip->chip_irq) {  in slg51000_i2c_probe()
482 		ret = devm_request_threaded_irq(dev, chip->chip_irq, NULL,  in slg51000_i2c_probe()
486 						"slg51000-irq", chip);  in slg51000_i2c_probe()
489 				chip->chip_irq);  in slg51000_i2c_probe()
507 		.name = "slg51000-regulator",