1 // SPDX-License-Identifier: GPL-2.0+
6  * Keerthy <j-keerthy@ti.com>
18 static const char lp873x_buck_ctrl[LP873X_BUCK_NUM] = {0x2, 0x4};
19 static const char lp873x_buck_volt[LP873X_BUCK_NUM] = {0x6, 0x7};
20 static const char lp873x_ldo_ctrl[LP873X_LDO_NUM] = {0x8, 0x9};
21 static const char lp873x_ldo_volt[LP873X_LDO_NUM] = {0xA, 0xB};
23 static int lp873x_buck_enable(struct udevice *dev, int op, bool *enable)  in lp873x_buck_enable()  argument
30 	adr = uc_pdata->ctrl_reg;  in lp873x_buck_enable()
32 	ret = pmic_reg_read(dev->parent, adr);  in lp873x_buck_enable()
40 			*enable = true;  in lp873x_buck_enable()
42 			*enable = false;  in lp873x_buck_enable()
46 		if (*enable)  in lp873x_buck_enable()
50 		ret = pmic_reg_write(dev->parent, adr, ret);  in lp873x_buck_enable()
58 static int lp873x_buck_volt2hex(int uV)  in lp873x_buck_volt2hex()
61 		return -EINVAL;  in lp873x_buck_volt2hex()
63 		return (uV - 1420000) / 20000 + 0x9E;  in lp873x_buck_volt2hex()
65 		return (uV - 735000) / 5000 + 0x18;  in lp873x_buck_volt2hex()
67 		return (uV - 700000) / 10000 + 0x1;  in lp873x_buck_volt2hex()
69 		return -EINVAL;  in lp873x_buck_volt2hex()
72 static int lp873x_buck_hex2volt(int hex)  in lp873x_buck_hex2volt()
75 		return -EINVAL;  in lp873x_buck_hex2volt()
77 		return 1400000 + (hex - 0x9D) * 20000;  in lp873x_buck_hex2volt()
79 		return 730000 + (hex - 0x17) * 5000;  in lp873x_buck_hex2volt()
81 		return 700000 + (hex - 0x14) * 10000;  in lp873x_buck_hex2volt()
83 		return -EINVAL;  in lp873x_buck_hex2volt()
86 static int lp873x_buck_val(struct udevice *dev, int op, int *uV)  in lp873x_buck_val()
97 	adr = uc_pdata->volt_reg;  in lp873x_buck_val()
99 	ret = pmic_reg_read(dev->parent, adr);  in lp873x_buck_val()
120 	ret = pmic_reg_write(dev->parent, adr, ret);  in lp873x_buck_val()
125 static int lp873x_ldo_enable(struct udevice *dev, int op, bool *enable)  in lp873x_ldo_enable()  argument
132 	adr = uc_pdata->ctrl_reg;  in lp873x_ldo_enable()
134 	ret = pmic_reg_read(dev->parent, adr);  in lp873x_ldo_enable()
142 			*enable = true;  in lp873x_ldo_enable()
144 			*enable = false;  in lp873x_ldo_enable()
148 		if (*enable)  in lp873x_ldo_enable()
153 		ret = pmic_reg_write(dev->parent, adr, ret);  in lp873x_ldo_enable()
161 static int lp873x_ldo_volt2hex(int uV)  in lp873x_ldo_volt2hex()
164 		return -EINVAL;  in lp873x_ldo_volt2hex()
166 	return (uV - 800000) / 100000;  in lp873x_ldo_volt2hex()
169 static int lp873x_ldo_hex2volt(int hex)  in lp873x_ldo_hex2volt()
172 		return -EINVAL;  in lp873x_ldo_hex2volt()
180 static int lp873x_ldo_val(struct udevice *dev, int op, int *uV)  in lp873x_ldo_val()
192 	adr = uc_pdata->volt_reg;  in lp873x_ldo_val()
194 	ret = pmic_reg_read(dev->parent, adr);  in lp873x_ldo_val()
215 	ret = pmic_reg_write(dev->parent, adr, ret);  in lp873x_ldo_val()
220 static int lp873x_ldo_probe(struct udevice *dev)  in lp873x_ldo_probe()
225 	uc_pdata->type = REGULATOR_TYPE_LDO;  in lp873x_ldo_probe()
227 	int idx = dev->driver_data;  in lp873x_ldo_probe()
230 		return -1;  in lp873x_ldo_probe()
233 	uc_pdata->ctrl_reg = lp873x_ldo_ctrl[idx];  in lp873x_ldo_probe()
234 	uc_pdata->volt_reg = lp873x_ldo_volt[idx];  in lp873x_ldo_probe()
239 static int ldo_get_value(struct udevice *dev)  in ldo_get_value()
251 static int ldo_set_value(struct udevice *dev, int uV)  in ldo_set_value()
256 static int ldo_get_enable(struct udevice *dev)  in ldo_get_enable()
258 	bool enable = false;  in ldo_get_enable()  local
261 	ret = lp873x_ldo_enable(dev, PMIC_OP_GET, &enable);  in ldo_get_enable()
265 	return enable;  in ldo_get_enable()
268 static int ldo_set_enable(struct udevice *dev, bool enable)  in ldo_set_enable()  argument
270 	return lp873x_ldo_enable(dev, PMIC_OP_SET, &enable);  in ldo_set_enable()
273 static int lp873x_buck_probe(struct udevice *dev)  in lp873x_buck_probe()
279 	uc_pdata->type = REGULATOR_TYPE_BUCK;  in lp873x_buck_probe()
281 	idx = dev->driver_data;  in lp873x_buck_probe()
284 		return -1;  in lp873x_buck_probe()
287 	uc_pdata->ctrl_reg = lp873x_buck_ctrl[idx];  in lp873x_buck_probe()
288 	uc_pdata->volt_reg = lp873x_buck_volt[idx];  in lp873x_buck_probe()
293 static int buck_get_value(struct udevice *dev)  in buck_get_value()
305 static int buck_set_value(struct udevice *dev, int uV)  in buck_set_value()
310 static int buck_get_enable(struct udevice *dev)  in buck_get_enable()
312 	bool enable = false;  in buck_get_enable()  local
316 	ret = lp873x_buck_enable(dev, PMIC_OP_GET, &enable);  in buck_get_enable()
320 	return enable;  in buck_get_enable()
323 static int buck_set_enable(struct udevice *dev, bool enable)  in buck_set_enable()  argument
325 	return lp873x_buck_enable(dev, PMIC_OP_SET, &enable);  in buck_set_enable()
328 static const struct dm_regulator_ops lp873x_ldo_ops = {
342 static const struct dm_regulator_ops lp873x_buck_ops = {