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/palmas.h>
19 DECLARE_GLOBAL_DATA_PTR;
21 #define REGULATOR_ON 0x1
22 #define REGULATOR_OFF 0x0
24 #define SMPS_MODE_MASK 0x3
25 #define SMPS_MODE_SHIFT 0x0
26 #define LDO_MODE_MASK 0x1
27 #define LDO_MODE_SHIFT 0x0
29 static const char palmas_smps_ctrl[][PALMAS_SMPS_NUM] = {
30 {0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38, 0x3c},
31 {0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38},
32 {0x20, 0x24, 0x2c, 0x30, 0x38},
35 static const char palmas_smps_volt[][PALMAS_SMPS_NUM] = {
36 {0x23, 0x27, 0x2b, 0x2f, 0x33, 0x37, 0x3b, 0x3c},
37 {0x23, 0x27, 0x2b, 0x2f, 0x33, 0x37, 0x3b},
38 {0x23, 0x27, 0x2f, 0x33, 0x3B}
41 static const char palmas_ldo_ctrl[][PALMAS_LDO_NUM] = {
42 {0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x62, 0x64},
43 {0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x62, 0x64},
44 {0x50, 0x52, 0x54, 0x5e, 0x62}
47 static const char palmas_ldo_volt[][PALMAS_LDO_NUM] = {
48 {0x51, 0x53, 0x55, 0x57, 0x59, 0x5b, 0x5d, 0x5f, 0x61, 0x63, 0x65},
49 {0x51, 0x53, 0x55, 0x57, 0x59, 0x5b, 0x5d, 0x5f, 0x61, 0x63, 0x65},
50 {0x51, 0x53, 0x55, 0x5f, 0x63}
53 static int palmas_smps_enable(struct udevice *dev, int op, bool *enable)
57 struct dm_regulator_uclass_platdata *uc_pdata;
59 uc_pdata = dev_get_uclass_platdata(dev);
60 adr = uc_pdata->ctrl_reg;
62 ret = pmic_reg_read(dev->parent, adr);
66 if (op == PMIC_OP_GET) {
67 ret &= PALMAS_SMPS_STATUS_MASK;
75 } else if (op == PMIC_OP_SET) {
77 ret |= PALMAS_SMPS_MODE_MASK;
79 ret &= ~(PALMAS_SMPS_MODE_MASK);
81 ret = pmic_reg_write(dev->parent, adr, ret);
89 static int palmas_smps_volt2hex(int uV)
91 if (uV > PALMAS_LDO_VOLT_MAX)
95 return (uV - 1000000) / 20000 + 0x6;
100 return 0x6 + ((uV - 500000) / 10000);
103 static int palmas_smps_hex2volt(int hex, bool range)
107 if (hex > PALMAS_SMPS_VOLT_MAX_HEX)
113 uV = 500000 + (hex - 0x6) * 10000;
121 static int palmas_smps_val(struct udevice *dev, int op, int *uV)
123 unsigned int hex, adr;
126 struct dm_regulator_uclass_platdata *uc_pdata;
128 uc_pdata = dev_get_uclass_platdata(dev);
130 if (op == PMIC_OP_GET)
133 adr = uc_pdata->volt_reg;
135 ret = pmic_reg_read(dev->parent, adr);
139 if (op == PMIC_OP_GET) {
140 if (ret & PALMAS_SMPS_RANGE_MASK)
145 ret &= PALMAS_SMPS_VOLT_MASK;
146 ret = palmas_smps_hex2volt(ret, range);
154 hex = palmas_smps_volt2hex(*uV);
158 ret &= ~PALMAS_SMPS_VOLT_MASK;
161 ret |= PALMAS_SMPS_RANGE_MASK;
163 return pmic_reg_write(dev->parent, adr, ret);
166 static int palmas_ldo_enable(struct udevice *dev, int op, bool *enable)
170 struct dm_regulator_uclass_platdata *uc_pdata;
172 uc_pdata = dev_get_uclass_platdata(dev);
173 adr = uc_pdata->ctrl_reg;
175 ret = pmic_reg_read(dev->parent, adr);
179 if (op == PMIC_OP_GET) {
180 ret &= PALMAS_LDO_STATUS_MASK;
188 } else if (op == PMIC_OP_SET) {
190 ret |= PALMAS_LDO_MODE_MASK;
192 ret &= ~(PALMAS_LDO_MODE_MASK);
194 ret = pmic_reg_write(dev->parent, adr, ret);
202 static int palmas_ldo_volt2hex(int uV)
204 if (uV > PALMAS_LDO_VOLT_MAX)
207 return (uV - 850000) / 50000;
210 static int palmas_ldo_hex2volt(int hex)
212 if (hex > PALMAS_LDO_VOLT_MAX_HEX)
218 return (hex * 50000) + 850000;
221 static int palmas_ldo_val(struct udevice *dev, int op, int *uV)
223 unsigned int hex, adr;
226 struct dm_regulator_uclass_platdata *uc_pdata;
228 if (op == PMIC_OP_GET)
231 uc_pdata = dev_get_uclass_platdata(dev);
233 adr = uc_pdata->volt_reg;
235 ret = pmic_reg_read(dev->parent, adr);
239 if (op == PMIC_OP_GET) {
240 ret &= PALMAS_LDO_VOLT_MASK;
241 ret = palmas_ldo_hex2volt(ret);
248 hex = palmas_ldo_volt2hex(*uV);
252 ret &= ~PALMAS_LDO_VOLT_MASK;
257 return pmic_reg_write(dev->parent, adr, ret);
260 static int palmas_ldo_probe(struct udevice *dev)
262 struct dm_regulator_uclass_platdata *uc_pdata;
263 struct udevice *parent;
265 uc_pdata = dev_get_uclass_platdata(dev);
267 parent = dev_get_parent(dev);
268 int type = dev_get_driver_data(parent);
270 uc_pdata->type = REGULATOR_TYPE_LDO;
272 if (dev->driver_data) {
273 u8 idx = dev->driver_data - 1;
274 uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][idx];
275 uc_pdata->volt_reg = palmas_ldo_volt[type][idx];
277 /* check for ldoln and ldousb cases */
278 if (!strcmp("ldoln", dev->name)) {
279 uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][9];
280 uc_pdata->volt_reg = palmas_ldo_volt[type][9];
281 } else if (!strcmp("ldousb", dev->name)) {
282 uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][10];
283 uc_pdata->volt_reg = palmas_ldo_volt[type][10];
290 static int ldo_get_value(struct udevice *dev)
295 ret = palmas_ldo_val(dev, PMIC_OP_GET, &uV);
302 static int ldo_set_value(struct udevice *dev, int uV)
304 return palmas_ldo_val(dev, PMIC_OP_SET, &uV);
307 static bool ldo_get_enable(struct udevice *dev)
312 ret = palmas_ldo_enable(dev, PMIC_OP_GET, &enable);
319 static int ldo_set_enable(struct udevice *dev, bool enable)
321 return palmas_ldo_enable(dev, PMIC_OP_SET, &enable);
324 static int palmas_smps_probe(struct udevice *dev)
326 struct dm_regulator_uclass_platdata *uc_pdata;
327 struct udevice *parent;
330 uc_pdata = dev_get_uclass_platdata(dev);
332 parent = dev_get_parent(dev);
333 int type = dev_get_driver_data(parent);
335 uc_pdata->type = REGULATOR_TYPE_BUCK;
340 switch (dev->driver_data) {
343 uc_pdata->ctrl_reg = palmas_smps_ctrl[type][0];
344 uc_pdata->volt_reg = palmas_smps_volt[type][0];
347 uc_pdata->ctrl_reg = palmas_smps_ctrl[type][1];
348 uc_pdata->volt_reg = palmas_smps_volt[type][1];
351 uc_pdata->ctrl_reg = palmas_smps_ctrl[type][2];
352 uc_pdata->volt_reg = palmas_smps_volt[type][2];
359 idx = dev->driver_data - 4;
360 uc_pdata->ctrl_reg = palmas_smps_ctrl[type][idx];
361 uc_pdata->volt_reg = palmas_smps_volt[type][idx];
365 printf("Wrong ID for regulator\n");
370 switch (dev->driver_data) {
376 idx = dev->driver_data - 1;
377 uc_pdata->ctrl_reg = palmas_smps_ctrl[type][idx];
378 uc_pdata->volt_reg = palmas_smps_volt[type][idx];
382 printf("Wrong ID for regulator\n");
387 printf("Invalid PMIC ID\n");
393 static int smps_get_value(struct udevice *dev)
398 ret = palmas_smps_val(dev, PMIC_OP_GET, &uV);
405 static int smps_set_value(struct udevice *dev, int uV)
407 return palmas_smps_val(dev, PMIC_OP_SET, &uV);
410 static bool smps_get_enable(struct udevice *dev)
415 ret = palmas_smps_enable(dev, PMIC_OP_GET, &enable);
422 static int smps_set_enable(struct udevice *dev, bool enable)
424 return palmas_smps_enable(dev, PMIC_OP_SET, &enable);
427 static const struct dm_regulator_ops palmas_ldo_ops = {
428 .get_value = ldo_get_value,
429 .set_value = ldo_set_value,
430 .get_enable = ldo_get_enable,
431 .set_enable = ldo_set_enable,
434 U_BOOT_DRIVER(palmas_ldo) = {
435 .name = PALMAS_LDO_DRIVER,
436 .id = UCLASS_REGULATOR,
437 .ops = &palmas_ldo_ops,
438 .probe = palmas_ldo_probe,
441 static const struct dm_regulator_ops palmas_smps_ops = {
442 .get_value = smps_get_value,
443 .set_value = smps_set_value,
444 .get_enable = smps_get_enable,
445 .set_enable = smps_set_enable,
448 U_BOOT_DRIVER(palmas_smps) = {
449 .name = PALMAS_SMPS_DRIVER,
450 .id = UCLASS_REGULATOR,
451 .ops = &palmas_smps_ops,
452 .probe = palmas_smps_probe,