1 // SPDX-License-Identifier: GPL-2.0+
3 // max77802.c - Regulator driver for the Maxim 77802
5 // Copyright (C) 2013-2014 Google, Inc
8 // Copyright (C) 2012 Samsung Electronics
12 // This driver is based on max8997.c
24 #include <linux/mfd/max77686-private.h>
25 #include <dt-bindings/regulator/maxim,max77802.h>
46 /* MAX77802 has two register formats: 2-bit and 4-bit */
84 	return -EINVAL;  in max77802_get_opmode_shift()
88  * max77802_set_suspend_disable - Disable the regulator during system suspend
101 	if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))  in max77802_set_suspend_disable()
102 		return -EINVAL;  in max77802_set_suspend_disable()
103 	max77802->opmode[id] = val;  in max77802_set_suspend_disable()
104 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_set_suspend_disable()
105 				  rdev->desc->enable_mask, val << shift);  in max77802_set_suspend_disable()
128 		dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",  in max77802_set_mode()
129 			 rdev->desc->name, mode);  in max77802_set_mode()
130 		return -EINVAL;  in max77802_set_mode()
133 	if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))  in max77802_set_mode()
134 		return -EINVAL;  in max77802_set_mode()
136 	max77802->opmode[id] = val;  in max77802_set_mode()
137 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_set_mode()
138 				  rdev->desc->enable_mask, val << shift);  in max77802_set_mode()
146 	if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))  in max77802_get_mode()
147 		return -EINVAL;  in max77802_get_mode()
148 	return max77802_map_mode(max77802->opmode[id]);  in max77802_get_mode()
152  * max77802_set_suspend_mode - set regulator opmode when the system is suspended
159  * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35)
175 	if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))  in max77802_set_suspend_mode()
176 		return -EINVAL;  in max77802_set_suspend_mode()
182 	if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) {  in max77802_set_suspend_mode()
183 		dev_warn(&rdev->dev, "%s: is disabled, mode: 0x%x not set\n",  in max77802_set_suspend_mode()
184 			 rdev->desc->name, mode);  in max77802_set_suspend_mode()
195 		if (max77802->opmode[id] == MAX77802_OPMODE_NORMAL)  in max77802_set_suspend_mode()
206 		if (max77802->opmode[id] == MAX77802_OPMODE_LP)  in max77802_set_suspend_mode()
207 			dev_warn(&rdev->dev, "%s: in Low Power: 0x%x invalid\n",  in max77802_set_suspend_mode()
208 				 rdev->desc->name, mode);  in max77802_set_suspend_mode()
211 		dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",  in max77802_set_suspend_mode()
212 			 rdev->desc->name, mode);  in max77802_set_suspend_mode()
213 		return -EINVAL;  in max77802_set_suspend_mode()
216 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_set_suspend_mode()
217 				  rdev->desc->enable_mask, val << shift);  in max77802_set_suspend_mode()
226 	if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))  in max77802_enable()
227 		return -EINVAL;  in max77802_enable()
228 	if (max77802->opmode[id] == MAX77802_OFF_PWRREQ)  in max77802_enable()
229 		max77802->opmode[id] = MAX77802_OPMODE_NORMAL;  in max77802_enable()
231 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_enable()
232 				  rdev->desc->enable_mask,  in max77802_enable()
233 				  max77802->opmode[id] << shift);  in max77802_enable()
248 	dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n",  in max77802_find_ramp_value()
249 		 rdev->desc->name, ramp_delay);  in max77802_find_ramp_value()
250 	return size - 1;  in max77802_find_ramp_value()
253 /* Used for BUCKs 2-4 */
261 		dev_warn(&rdev->dev,  in max77802_set_ramp_delay_2bit()
263 			 rdev->desc->name);  in max77802_set_ramp_delay_2bit()
264 		return -EINVAL;  in max77802_set_ramp_delay_2bit()
269 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_set_ramp_delay_2bit()
283 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77802_set_ramp_delay_4bit()
289  * LDOs 2, 4-19, 22-35
335 /* BUCKs 2-4 */
350 /* BUCKs 5, 7-10 */
364 /* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */
378 	.vsel_reg	= MAX77802_REG_LDO1CTRL1 + num - 1,		\
380 	.enable_reg	= MAX77802_REG_LDO1CTRL1 + num - 1,		\
399 	.vsel_reg	= MAX77802_REG_LDO1CTRL1 + num - 1,		\
401 	.enable_reg	= MAX77802_REG_LDO1CTRL1 + num - 1,		\
408 	.name		= "BUCK"#num,					\
409 	.of_match	= of_match_ptr("BUCK"#num),			\
427 /* BUCKS 2-4 */
429 	.name		= "BUCK"#num,					\
430 	.of_match	= of_match_ptr("BUCK"#num),			\
449 /* BUCK 5 */
451 	.name		= "BUCK"#num,					\
452 	.of_match	= of_match_ptr("BUCK"#num),			\
470 /* BUCKs 7-10 */
472 	.name		= "BUCK"#num,					\
473 	.of_match	= of_match_ptr("BUCK"#num),			\
484 	.vsel_reg	= MAX77802_REG_BUCK7OUT + (num - 7) * 3,	\
486 	.enable_reg	= MAX77802_REG_BUCK7CTRL + (num - 7) * 3,	\
538 	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);  in max77802_pmic_probe()
543 	max77802 = devm_kzalloc(&pdev->dev,  in max77802_pmic_probe()
547 		return -ENOMEM;  in max77802_pmic_probe()
549 	config.dev = iodev->dev;  in max77802_pmic_probe()
550 	config.regmap = iodev->regmap;  in max77802_pmic_probe()
560 		ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val);  in max77802_pmic_probe()
562 			dev_warn(&pdev->dev,  in max77802_pmic_probe()
574 		if (id < ARRAY_SIZE(max77802->opmode)) {  in max77802_pmic_probe()
576 				max77802->opmode[id] = MAX77802_OPMODE_NORMAL;  in max77802_pmic_probe()
578 				max77802->opmode[id] = val;  in max77802_pmic_probe()
581 		rdev = devm_regulator_register(&pdev->dev,  in max77802_pmic_probe()
585 			dev_err(&pdev->dev,  in max77802_pmic_probe()
595 	{"max77802-pmic", 0},
602 		.name = "max77802-pmic",