1 // SPDX-License-Identifier: GPL-2.0-only
3  * TI LP8788 MFD - buck regulator driver
92 	struct gpio_desc *gpio1;  member
104 	struct lp8788_buck1_dvs *dvs = (struct lp8788_buck1_dvs *)buck->dvs;  in lp8788_buck1_set_dvs()
110 	pinstate = dvs->vsel == DVS_SEL_V0 ? DVS_LOW : DVS_HIGH;  in lp8788_buck1_set_dvs()
111 	gpiod_set_value(buck->gpio1, pinstate);  in lp8788_buck1_set_dvs()
116 	struct lp8788_buck2_dvs *dvs = (struct lp8788_buck2_dvs *)buck->dvs;  in lp8788_buck2_set_dvs()
122 	switch (dvs->vsel) {  in lp8788_buck2_set_dvs()
143 	gpiod_set_value(buck->gpio1, pin1);  in lp8788_buck2_set_dvs()
144 	gpiod_set_value(buck->gpio2, pin2);  in lp8788_buck2_set_dvs()
177 	lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);  in lp8788_get_buck_dvs_ctrl_mode()
209 			idx = gpiod_get_value(buck->gpio1);  in lp8788_select_buck_vout_addr()
211 			lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);  in lp8788_select_buck_vout_addr()
218 			pin1 = gpiod_get_value(buck->gpio1);  in lp8788_select_buck_vout_addr()
219 			pin2 = gpiod_get_value(buck->gpio2);  in lp8788_select_buck_vout_addr()
230 			lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);  in lp8788_select_buck_vout_addr()
251 	if (buck->dvs)  in lp8788_buck12_set_voltage_sel()
256 		return -EINVAL;  in lp8788_buck12_set_voltage_sel()
258 	return lp8788_update_bits(buck->lp, addr, LP8788_VOUT_M, selector);  in lp8788_buck12_set_voltage_sel()
270 		return -EINVAL;  in lp8788_buck12_get_voltage_sel()
272 	ret = lp8788_read_byte(buck->lp, addr, &val);  in lp8788_buck12_get_voltage_sel()
285 	if (lp8788_read_byte(buck->lp, addr, &val))  in lp8788_buck_enable_time()
286 		return -EINVAL;  in lp8788_buck_enable_time()
308 		return -EINVAL;  in lp8788_buck_set_mode()
311 	return lp8788_update_bits(buck->lp, LP8788_BUCK_PWM, mask, val);  in lp8788_buck_set_mode()
321 	ret = lp8788_read_byte(buck->lp, LP8788_BUCK_PWM, &val);  in lp8788_buck_get_mode()
414 	struct lp8788_platform_data *pdata = buck->lp->pdata;  in lp8788_dvs_gpio_request()
415 	struct device *dev = &pdev->dev;  in lp8788_dvs_gpio_request()
419 		buck->gpio1 = devm_gpiod_get(dev, "dvs", GPIOD_OUT_LOW);  in lp8788_dvs_gpio_request()
420 		if (IS_ERR(buck->gpio1))  in lp8788_dvs_gpio_request()
421 			return PTR_ERR(buck->gpio1);  in lp8788_dvs_gpio_request()
422 		gpiod_set_consumer_name(buck->gpio1, "LP8788_B1_DVS");  in lp8788_dvs_gpio_request()
424 		buck->dvs = pdata->buck1_dvs;  in lp8788_dvs_gpio_request()
427 		buck->gpio1 = devm_gpiod_get_index(dev, "dvs", 0, GPIOD_OUT_LOW);  in lp8788_dvs_gpio_request()
428 		if (IS_ERR(buck->gpio1))  in lp8788_dvs_gpio_request()
429 			return PTR_ERR(buck->gpio1);  in lp8788_dvs_gpio_request()
430 		gpiod_set_consumer_name(buck->gpio1, "LP8788_B2_DVS1");  in lp8788_dvs_gpio_request()
432 		buck->gpio2 = devm_gpiod_get_index(dev, "dvs", 1, GPIOD_OUT_LOW);  in lp8788_dvs_gpio_request()
433 		if (IS_ERR(buck->gpio2))  in lp8788_dvs_gpio_request()
434 			return PTR_ERR(buck->gpio2);  in lp8788_dvs_gpio_request()
435 		gpiod_set_consumer_name(buck->gpio2, "LP8788_B2_DVS2");  in lp8788_dvs_gpio_request()
437 		buck->dvs = pdata->buck2_dvs;  in lp8788_dvs_gpio_request()
449 	struct lp8788_platform_data *pdata = buck->lp->pdata;  in lp8788_init_dvs()
462 	if ((id == BUCK1 && !pdata->buck1_dvs) ||  in lp8788_init_dvs()
463 		(id == BUCK2 && !pdata->buck2_dvs))  in lp8788_init_dvs()
469 	return lp8788_update_bits(buck->lp, LP8788_BUCK_DVS_SEL, mask[id],  in lp8788_init_dvs()
473 	return lp8788_update_bits(buck->lp, LP8788_BUCK_DVS_SEL, mask[id],  in lp8788_init_dvs()
479 	struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);  in lp8788_buck_probe()
480 	int id = pdev->id;  in lp8788_buck_probe()
482 	struct regulator_config cfg = { };  in lp8788_buck_probe()  local
487 		return -EINVAL;  in lp8788_buck_probe()
489 	buck = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_buck), GFP_KERNEL);  in lp8788_buck_probe()
491 		return -ENOMEM;  in lp8788_buck_probe()
493 	buck->lp = lp;  in lp8788_buck_probe()
499 	cfg.dev = pdev->dev.parent;  in lp8788_buck_probe()
500 	cfg.init_data = lp->pdata ? lp->pdata->buck_data[id] : NULL;  in lp8788_buck_probe()
501 	cfg.driver_data = buck;  in lp8788_buck_probe()
502 	cfg.regmap = lp->regmap;  in lp8788_buck_probe()
504 	rdev = devm_regulator_register(&pdev->dev, &lp8788_buck_desc[id], &cfg);  in lp8788_buck_probe()
507 		dev_err(&pdev->dev, "BUCK%d regulator register err = %d\n",  in lp8788_buck_probe()
512 	buck->regulator = rdev;  in lp8788_buck_probe()
541 MODULE_ALIAS("platform:lp8788-buck");