1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
23 	u32 enable;  member
32 static int stm32mp_pwr_write(struct udevice *dev, uint reg,  in stm32mp_pwr_write()
39 		return -EINVAL;  in stm32mp_pwr_write()
41 	return regmap_write(priv->regmap, STM32MP_PWR_CR3, val);  in stm32mp_pwr_write()
44 static int stm32mp_pwr_read(struct udevice *dev, uint reg, uint8_t *buff,  in stm32mp_pwr_read()
50 		return -EINVAL;  in stm32mp_pwr_read()
52 	return regmap_read(priv->regmap, STM32MP_PWR_CR3, (u32 *)buff);  in stm32mp_pwr_read()
55 static int stm32mp_pwr_ofdata_to_platdata(struct udevice *dev)  in stm32mp_pwr_ofdata_to_platdata()
66 	priv->regmap = regmap;  in stm32mp_pwr_ofdata_to_platdata()
71 static const struct pmic_child_info pwr_children_info[] = {
77 static int stm32mp_pwr_bind(struct udevice *dev)  in stm32mp_pwr_bind()
81 	children = pmic_bind_children(dev, dev->node, pwr_children_info);  in stm32mp_pwr_bind()
88 static struct dm_pmic_ops stm32mp_pwr_ops = {
93 static const struct udevice_id stm32mp_pwr_ids[] = {
94 	{ .compatible = "st,stm32mp1,pwr-reg" },
108 static const struct stm32mp_pwr_reg_info stm32mp_pwr_reg11 = {
109 	.enable = STM32MP_PWR_CR3_REG11DEN,
114 static const struct stm32mp_pwr_reg_info stm32mp_pwr_reg18 = {
115 	.enable = STM32MP_PWR_CR3_REG18DEN,
120 static const struct stm32mp_pwr_reg_info stm32mp_pwr_usb33 = {
121 	.enable = STM32MP_PWR_CR3_USB33DEN,
126 static const struct stm32mp_pwr_reg_info *stm32mp_pwr_reg_infos[] = {
133 static int stm32mp_pwr_regulator_probe(struct udevice *dev)  in stm32mp_pwr_regulator_probe()
143 		rc = dev_read_stringlist_search(dev, "regulator-name",  in stm32mp_pwr_regulator_probe()
144 						(*p)->name);  in stm32mp_pwr_regulator_probe()
146 			dev_dbg(dev, "found regulator %s\n", (*p)->name);  in stm32mp_pwr_regulator_probe()
148 		} else if (rc != -ENODATA) {  in stm32mp_pwr_regulator_probe()
158 		while (dev_read_string_index(dev, "regulator-name",  in stm32mp_pwr_regulator_probe()
162 		return -EINVAL;  in stm32mp_pwr_regulator_probe()
165 	uc_pdata->type = REGULATOR_TYPE_FIXED;  in stm32mp_pwr_regulator_probe()
166 	dev->priv = (void *)*p;  in stm32mp_pwr_regulator_probe()
171 static int stm32mp_pwr_regulator_set_value(struct udevice *dev, int uV)  in stm32mp_pwr_regulator_set_value()
177 		return -ENXIO;  in stm32mp_pwr_regulator_set_value()
179 	if (uc_pdata->min_uV != uV) {  in stm32mp_pwr_regulator_set_value()
180 		dev_dbg(dev, "Invalid uV=%d for: %s\n", uV, uc_pdata->name);  in stm32mp_pwr_regulator_set_value()
181 		return -EINVAL;  in stm32mp_pwr_regulator_set_value()
187 static int stm32mp_pwr_regulator_get_value(struct udevice *dev)  in stm32mp_pwr_regulator_get_value()
193 		return -ENXIO;  in stm32mp_pwr_regulator_get_value()
195 	if (uc_pdata->min_uV != uc_pdata->max_uV) {  in stm32mp_pwr_regulator_get_value()
196 		dev_dbg(dev, "Invalid constraints for: %s\n", uc_pdata->name);  in stm32mp_pwr_regulator_get_value()
197 		return -EINVAL;  in stm32mp_pwr_regulator_get_value()
200 	return uc_pdata->min_uV;  in stm32mp_pwr_regulator_get_value()
203 static int stm32mp_pwr_regulator_get_enable(struct udevice *dev)  in stm32mp_pwr_regulator_get_enable()
209 	rc = pmic_read(dev->parent, 0, (uint8_t *)&reg, sizeof(reg));  in stm32mp_pwr_regulator_get_enable()
213 	dev_dbg(dev, "%s id %s\n", p->name, (reg & p->enable) ? "on" : "off");  in stm32mp_pwr_regulator_get_enable()
215 	return (reg & p->enable) != 0;  in stm32mp_pwr_regulator_get_enable()
218 static int stm32mp_pwr_regulator_set_enable(struct udevice *dev, bool enable)  in stm32mp_pwr_regulator_set_enable()  argument
225 	dev_dbg(dev, "Turning %s %s\n", enable ? "on" : "off", p->name);  in stm32mp_pwr_regulator_set_enable()
227 	rc = pmic_read(dev->parent, 0, (uint8_t *)&reg, sizeof(reg));  in stm32mp_pwr_regulator_set_enable()
232 	if (!!(reg & p->enable) == enable)  in stm32mp_pwr_regulator_set_enable()
235 	reg &= ~p->enable;  in stm32mp_pwr_regulator_set_enable()
236 	if (enable)  in stm32mp_pwr_regulator_set_enable()
237 		reg |= p->enable;  in stm32mp_pwr_regulator_set_enable()
239 	rc = pmic_write(dev->parent, 0, (uint8_t *)&reg, sizeof(reg));  in stm32mp_pwr_regulator_set_enable()
243 	if (!enable)  in stm32mp_pwr_regulator_set_enable()
246 	/* waiting ready for enable */  in stm32mp_pwr_regulator_set_enable()
249 		rc = pmic_read(dev->parent, 0, (uint8_t *)&reg, sizeof(reg));  in stm32mp_pwr_regulator_set_enable()
252 		if (reg & p->ready)  in stm32mp_pwr_regulator_set_enable()
255 			dev_dbg(dev, "%s: timeout\n", p->name);  in stm32mp_pwr_regulator_set_enable()
256 			return -ETIMEDOUT;  in stm32mp_pwr_regulator_set_enable()
262 static const struct dm_regulator_ops stm32mp_pwr_regulator_ops = {