3 * Texas Instruments Incorporated, <www.ti.com>
5 * Keerthy <j-keerthy@ti.com>
7 * SPDX-License-Identifier: GPL-2.0+
15 #include <power/pmic.h>
16 #include <power/regulator.h>
17 #include <power/lp87565.h>
19 DECLARE_GLOBAL_DATA_PTR;
21 static const char lp87565_buck_ctrl1[LP87565_BUCK_NUM] = {0x2, 0x4, 0x6, 0x8, 0x2, 0x6};
22 static const char lp87565_buck_vout[LP87565_BUCK_NUM] = {0xA, 0xC, 0xE, 0x10, 0xA, 0xE };
24 static int lp87565_buck_enable(struct udevice *dev, int op, bool *enable)
28 struct dm_regulator_uclass_platdata *uc_pdata;
30 uc_pdata = dev_get_uclass_platdata(dev);
31 adr = uc_pdata->ctrl_reg;
33 ret = pmic_reg_read(dev->parent, adr);
37 if (op == PMIC_OP_GET) {
38 ret &= LP87565_BUCK_MODE_MASK;
46 } else if (op == PMIC_OP_SET) {
48 ret |= LP87565_BUCK_MODE_MASK;
50 ret &= ~LP87565_BUCK_MODE_MASK;
51 ret = pmic_reg_write(dev->parent, adr, ret);
59 static int lp87565_buck_volt2val(int uV)
61 if (uV > LP87565_BUCK_VOLT_MAX)
63 else if (uV > 1400000)
64 return (uV - 1420000) / 20000 + 0x9E;
66 return (uV - 735000) / 5000 + 0x18;
67 else if (uV >= 500000)
68 return (uV - 500000) / 10000;
73 static int lp87565_buck_val2volt(int val)
75 if (val > LP87565_BUCK_VOLT_MAX_HEX)
78 return 1400000 + (val - 0x9D) * 20000;
80 return 730000 + (val - 0x17) * 5000;
82 return 500000 + val * 10000;
87 static int lp87565_buck_val(struct udevice *dev, int op, int *uV)
89 unsigned int hex, adr;
91 struct dm_regulator_uclass_platdata *uc_pdata;
93 uc_pdata = dev_get_uclass_platdata(dev);
95 if (op == PMIC_OP_GET)
98 adr = uc_pdata->volt_reg;
100 ret = pmic_reg_read(dev->parent, adr);
104 if (op == PMIC_OP_GET) {
105 ret &= LP87565_BUCK_VOLT_MASK;
106 ret = lp87565_buck_val2volt(ret);
114 hex = lp87565_buck_volt2val(*uV);
121 ret = pmic_reg_write(dev->parent, adr, ret);
126 static int lp87565_buck_probe(struct udevice *dev)
128 struct dm_regulator_uclass_platdata *uc_pdata;
131 uc_pdata = dev_get_uclass_platdata(dev);
132 uc_pdata->type = REGULATOR_TYPE_BUCK;
134 idx = dev->driver_data;
135 if (idx == 0 || idx == 1 || idx == 2 || idx == 3) {
136 debug("Single phase regulator\n");
137 } else if (idx == 23) {
139 } else if (idx == 10) {
142 printf("Wrong ID for regulator\n");
146 uc_pdata->ctrl_reg = lp87565_buck_ctrl1[idx];
147 uc_pdata->volt_reg = lp87565_buck_vout[idx];
152 static int buck_get_value(struct udevice *dev)
157 ret = lp87565_buck_val(dev, PMIC_OP_GET, &uV);
164 static int buck_set_value(struct udevice *dev, int uV)
166 return lp87565_buck_val(dev, PMIC_OP_SET, &uV);
169 static int buck_get_enable(struct udevice *dev)
175 ret = lp87565_buck_enable(dev, PMIC_OP_GET, &enable);
182 static int buck_set_enable(struct udevice *dev, bool enable)
184 return lp87565_buck_enable(dev, PMIC_OP_SET, &enable);
187 static const struct dm_regulator_ops lp87565_buck_ops = {
188 .get_value = buck_get_value,
189 .set_value = buck_set_value,
190 .get_enable = buck_get_enable,
191 .set_enable = buck_set_enable,
194 U_BOOT_DRIVER(lp87565_buck) = {
195 .name = LP87565_BUCK_DRIVER,
196 .id = UCLASS_REGULATOR,
197 .ops = &lp87565_buck_ops,
198 .probe = lp87565_buck_probe,