1 // SPDX-License-Identifier: GPL-2.0+
3 // pv88090-regulator.c - Regulator device driver for PV88090
17 #include "pv88090-regulator.h"
96 	ret = regmap_read(rdev->regmap, info->conf, &data);  in pv88090_buck_get_mode()
132 		return -EINVAL;  in pv88090_buck_set_mode()
135 	return regmap_update_bits(rdev->regmap, info->conf,  in pv88090_buck_set_mode()
173 		.n_voltages = ((max) - (min))/(step) + 1, \
199 		.n_voltages = ((max) - (min))/(step) + 1, \
223 	err = regmap_read(chip->regmap, PV88090_REG_EVENT_A, &reg_val);  in pv88090_irq_handler()
229 			if (chip->rdev[i] != NULL)  in pv88090_irq_handler()
230 				regulator_notifier_call_chain(chip->rdev[i],  in pv88090_irq_handler()
235 		err = regmap_write(chip->regmap, PV88090_REG_EVENT_A,  in pv88090_irq_handler()
245 			if (chip->rdev[i] != NULL)  in pv88090_irq_handler()
246 				regulator_notifier_call_chain(chip->rdev[i],  in pv88090_irq_handler()
251 		err = regmap_write(chip->regmap, PV88090_REG_EVENT_A,  in pv88090_irq_handler()
262 	dev_err(chip->dev, "I2C error : %d\n", err);  in pv88090_irq_handler()
271 	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);  in pv88090_i2c_probe()
277 	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88090), GFP_KERNEL);  in pv88090_i2c_probe()
279 		return -ENOMEM;  in pv88090_i2c_probe()
281 	chip->dev = &i2c->dev;  in pv88090_i2c_probe()
282 	chip->regmap = devm_regmap_init_i2c(i2c, &pv88090_regmap_config);  in pv88090_i2c_probe()
283 	if (IS_ERR(chip->regmap)) {  in pv88090_i2c_probe()
284 		error = PTR_ERR(chip->regmap);  in pv88090_i2c_probe()
285 		dev_err(chip->dev, "Failed to allocate register map: %d\n",  in pv88090_i2c_probe()
292 	if (i2c->irq != 0) {  in pv88090_i2c_probe()
293 		ret = regmap_write(chip->regmap, PV88090_REG_MASK_A, 0xFF);  in pv88090_i2c_probe()
295 			dev_err(chip->dev,  in pv88090_i2c_probe()
300 		ret = regmap_write(chip->regmap, PV88090_REG_MASK_B, 0xFF);  in pv88090_i2c_probe()
302 			dev_err(chip->dev,  in pv88090_i2c_probe()
307 		ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,  in pv88090_i2c_probe()
312 			dev_err(chip->dev, "Failed to request IRQ: %d\n",  in pv88090_i2c_probe()
313 				i2c->irq);  in pv88090_i2c_probe()
317 		ret = regmap_update_bits(chip->regmap, PV88090_REG_MASK_A,  in pv88090_i2c_probe()
320 			dev_err(chip->dev,  in pv88090_i2c_probe()
326 		dev_warn(chip->dev, "No IRQ configured\n");  in pv88090_i2c_probe()
329 	config.dev = chip->dev;  in pv88090_i2c_probe()
330 	config.regmap = chip->regmap;  in pv88090_i2c_probe()
337 			ret = regmap_read(chip->regmap,  in pv88090_i2c_probe()
345 			ret = regmap_read(chip->regmap,  in pv88090_i2c_probe()
351 				 (PV88090_BUCK_VRANGE_GAIN_SHIFT + i - 1)) &  in pv88090_i2c_probe()
355 				dev_err(chip->dev,  in pv88090_i2c_probe()
357 				return -EINVAL;  in pv88090_i2c_probe()
366 				- (pv88090_buck_vol[index].min_uV))  in pv88090_i2c_probe()
371 		chip->rdev[i] = devm_regulator_register(chip->dev,  in pv88090_i2c_probe()
373 		if (IS_ERR(chip->rdev[i])) {  in pv88090_i2c_probe()
374 			dev_err(chip->dev,  in pv88090_i2c_probe()
376 			return PTR_ERR(chip->rdev[i]);  in pv88090_i2c_probe()
391 	{ .compatible = "pvs,pv88090", .data = &pv88090_i2c_id[0] },