power/regulator/max77686.c

2  *  Copyright (C) 2012-2015 Samsung Electronics
7  * SPDX-License-Identifier:	GPL-2.0+
21 #define MODE(_id, _val, _name) { \  macro
29 	MODE(OPMODE_OFF, MAX77686_LDO_MODE_OFF, "OFF"),
30 	MODE(OPMODE_LPM, MAX77686_LDO_MODE_LPM, "LPM"),
31 	MODE(OPMODE_STANDBY_LPM, MAX77686_LDO_MODE_STANDBY_LPM, "ON/LPM"),
32 	MODE(OPMODE_ON, MAX77686_LDO_MODE_ON, "ON"),
37 	MODE(OPMODE_OFF, MAX77686_LDO_MODE_OFF, "OFF"),
38 	MODE(OPMODE_STANDBY, MAX77686_LDO_MODE_STANDBY, "ON/OFF"),
39 	MODE(OPMODE_STANDBY_LPM, MAX77686_LDO_MODE_STANDBY_LPM, "ON/LPM"),
40 	MODE(OPMODE_ON, MAX77686_LDO_MODE_ON, "ON"),
45 	MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
46 	MODE(OPMODE_STANDBY, MAX77686_BUCK_MODE_STANDBY, "ON/OFF"),
47 	MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
52 	MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
53 	MODE(OPMODE_STANDBY, MAX77686_BUCK_MODE_STANDBY, "ON/OFF"),
54 	MODE(OPMODE_LPM, MAX77686_BUCK_MODE_LPM, "LPM"),
55 	MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
60 	MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
61 	MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
81 		/* hex = (uV - 600000) / 12500; */  in max77686_buck_volt2hex()
82 		hex = (uV - MAX77686_BUCK_UV_LMIN) / MAX77686_BUCK_UV_LSTEP;  in max77686_buck_volt2hex()
87 		 * hex = (uV - 750000) / 50000. We assume that dynamic voltage  in max77686_buck_volt2hex()
93 		hex = (uV - MAX77686_BUCK_UV_HMIN) / MAX77686_BUCK_UV_HSTEP;  in max77686_buck_volt2hex()
102 	return -EINVAL;  in max77686_buck_volt2hex()
138 	return -EINVAL;  in max77686_buck_hex2volt()
152 		hex = (uV - MAX77686_LDO_UV_MIN) / MAX77686_LDO_UV_LSTEP;  in max77686_ldo_volt2hex()
153 		/* hex = (uV - 800000) / 25000; */  in max77686_ldo_volt2hex()
156 		hex = (uV - MAX77686_LDO_UV_MIN) / MAX77686_LDO_UV_HSTEP;  in max77686_ldo_volt2hex()
157 		/* hex = (uV - 800000) / 50000; */  in max77686_ldo_volt2hex()
164 	return -EINVAL;  in max77686_ldo_volt2hex()
193 	return -EINVAL;  in max77686_ldo_hex2volt()
199 		return -EINVAL;  in max77686_ldo_hex2mode()
205 		/* The same mode values but different meaning for each ldo */  in max77686_ldo_hex2mode()
226 		return -EINVAL;  in max77686_ldo_hex2mode()
233 		return -EINVAL;  in max77686_buck_hex2mode()
248 			return -EINVAL;  in max77686_buck_hex2mode()
257 			return -EINVAL;  in max77686_buck_hex2mode()
260 		return -EINVAL;  in max77686_buck_hex2mode()
266 	int ret = -EINVAL;  in max77686_buck_modes()
293 	int ret = -EINVAL;  in max77686_ldo_modes()
320 static int max77686_ldo_val(struct udevice *dev, int op, int *uV)  in max77686_ldo_val()  argument
326 	if (op == PMIC_OP_GET)  in max77686_ldo_val()
329 	ldo = dev->driver_data;  in max77686_ldo_val()
332 		return -EINVAL;  in max77686_ldo_val()
335 	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;  in max77686_ldo_val()
337 	ret = pmic_read(dev->parent, adr, &val, 1);  in max77686_ldo_val()
341 	if (op == PMIC_OP_GET) {  in max77686_ldo_val()
356 	ret = pmic_write(dev->parent, adr, &val, 1);  in max77686_ldo_val()
361 static int max77686_buck_val(struct udevice *dev, int op, int *uV)  in max77686_buck_val()  argument
367 	buck = dev->driver_data;  in max77686_buck_val()
370 		return -EINVAL;  in max77686_buck_val()
373 	if (op == PMIC_OP_GET)  in max77686_buck_val()
391 	ret = pmic_read(dev->parent, adr, &val, 1);  in max77686_buck_val()
395 	if (op == PMIC_OP_GET) {  in max77686_buck_val()
410 	ret = pmic_write(dev->parent, adr, &val, 1);  in max77686_buck_val()
415 static int max77686_ldo_mode(struct udevice *dev, int op, int *opmode)  in max77686_ldo_mode()  argument
417 	unsigned int adr, mode;  in max77686_ldo_mode()  local
421 	if (op == PMIC_OP_GET)  in max77686_ldo_mode()
422 		*opmode = -EINVAL;  in max77686_ldo_mode()
424 	ldo = dev->driver_data;  in max77686_ldo_mode()
427 		return -EINVAL;  in max77686_ldo_mode()
430 	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;  in max77686_ldo_mode()
432 	ret = pmic_read(dev->parent, adr, &val, 1);  in max77686_ldo_mode()
436 	if (op == PMIC_OP_GET) {  in max77686_ldo_mode()
445 	/* mode */  in max77686_ldo_mode()
448 		mode = MAX77686_LDO_MODE_OFF;  in max77686_ldo_mode()
462 			return -EINVAL;  in max77686_ldo_mode()
464 			mode = MAX77686_LDO_MODE_LPM;  in max77686_ldo_mode()
479 			mode = MAX77686_LDO_MODE_STANDBY;  in max77686_ldo_mode()
482 			return -EINVAL;  in max77686_ldo_mode()
486 		mode = MAX77686_LDO_MODE_STANDBY_LPM;  in max77686_ldo_mode()
489 		mode = MAX77686_LDO_MODE_ON;  in max77686_ldo_mode()
492 		mode = 0xff;  in max77686_ldo_mode()
495 	if (mode == 0xff) {  in max77686_ldo_mode()
496 		pr_err("Wrong mode: %d for ldo%d", *opmode, ldo);  in max77686_ldo_mode()
497 		return -EINVAL;  in max77686_ldo_mode()
501 	val |= mode;  in max77686_ldo_mode()
502 	ret = pmic_write(dev->parent, adr, &val, 1);  in max77686_ldo_mode()
507 static int max77686_ldo_enable(struct udevice *dev, int op, bool *enable)  in max77686_ldo_enable()  argument
511 	if (op == PMIC_OP_GET) {  in max77686_ldo_enable()
512 		ret = max77686_ldo_mode(dev, op, &on_off);  in max77686_ldo_enable()
524 			return -EINVAL;  in max77686_ldo_enable()
526 	} else if (op == PMIC_OP_SET) {  in max77686_ldo_enable()
532 		ret = max77686_ldo_mode(dev, op, &on_off);  in max77686_ldo_enable()
540 static int max77686_buck_mode(struct udevice *dev, int op, int *opmode)  in max77686_buck_mode()  argument
542 	unsigned int mask, adr, mode, mode_shift;  in max77686_buck_mode()  local
546 	buck = dev->driver_data;  in max77686_buck_mode()
549 		return -EINVAL;  in max77686_buck_mode()
567 	ret = pmic_read(dev->parent, adr, &val, 1);  in max77686_buck_mode()
571 	if (op == PMIC_OP_GET) {  in max77686_buck_mode()
581 	/* mode */  in max77686_buck_mode()
584 		mode = MAX77686_BUCK_MODE_OFF;  in max77686_buck_mode()
592 			mode = MAX77686_BUCK_MODE_STANDBY << mode_shift;  in max77686_buck_mode()
595 			mode = 0xff;  in max77686_buck_mode()
603 			mode = MAX77686_BUCK_MODE_LPM << mode_shift;  in max77686_buck_mode()
606 			mode = 0xff;  in max77686_buck_mode()
610 		mode = MAX77686_BUCK_MODE_ON << mode_shift;  in max77686_buck_mode()
613 		mode = 0xff;  in max77686_buck_mode()
616 	if (mode == 0xff) {  in max77686_buck_mode()
617 		pr_err("Wrong mode: %d for buck: %d\n", *opmode, buck);  in max77686_buck_mode()
618 		return -EINVAL;  in max77686_buck_mode()
622 	val |= mode;  in max77686_buck_mode()
623 	ret = pmic_write(dev->parent, adr, &val, 1);  in max77686_buck_mode()
628 static int max77686_buck_enable(struct udevice *dev, int op, bool *enable)  in max77686_buck_enable()  argument
632 	if (op == PMIC_OP_GET) {  in max77686_buck_enable()
633 		ret = max77686_buck_mode(dev, op, &on_off);  in max77686_buck_enable()
645 			return -EINVAL;  in max77686_buck_enable()
647 	} else if (op == PMIC_OP_SET) {  in max77686_buck_enable()
653 		ret = max77686_buck_mode(dev, op, &on_off);  in max77686_buck_enable()
667 	uc_pdata->type = REGULATOR_TYPE_LDO;  in max77686_ldo_probe()
668 	uc_pdata->mode_count = max77686_ldo_modes(dev->driver_data,  in max77686_ldo_probe()
669 						  &uc_pdata->mode, dev);  in max77686_ldo_probe()
710 	int mode;  in ldo_get_mode()  local
713 	ret = max77686_ldo_mode(dev, PMIC_OP_GET, &mode);  in ldo_get_mode()
717 	return mode;  in ldo_get_mode()
720 static int ldo_set_mode(struct udevice *dev, int mode)  in ldo_set_mode()  argument
722 	return max77686_ldo_mode(dev, PMIC_OP_SET, &mode);  in ldo_set_mode()
731 	uc_pdata->type = REGULATOR_TYPE_BUCK;  in max77686_buck_probe()
732 	uc_pdata->mode_count = max77686_buck_modes(dev->driver_data,  in max77686_buck_probe()
733 						   &uc_pdata->mode);  in max77686_buck_probe()
774 	int mode;  in buck_get_mode()  local
777 	ret = max77686_buck_mode(dev, PMIC_OP_GET, &mode);  in buck_get_mode()
781 	return mode;  in buck_get_mode()
784 static int buck_set_mode(struct udevice *dev, int mode)  in buck_set_mode()  argument
786 	return max77686_buck_mode(dev, PMIC_OP_SET, &mode);  in buck_set_mode()