drivers/regulator/max77686-regulator.c

1 // SPDX-License-Identifier: GPL-2.0+
3 // max77686.c - Regulator driver for the Maxim 77686
21 #include <linux/mfd/max77686-private.h>
43  * Forcing low power mode: LDO1, 3-5, 9, 13, 17-26
48  *  - LDO2, 6-8, 10-12, 14-16
49  *  - buck[1234]
52 /* Low power mode controlled by PWRREQ: All LDOs */
54 /* Forcing low power mode: buck[234] */
101  * replaces "normal" mode. Any change from low power mode to normal
103  * Map normal mode to proper value for such regulators.
112 		if (test_bit(id, max77686->gpio_enabled))  in max77686_map_normal_mode()
119 /* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */
129 	ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77686_set_suspend_disable()
130 				 rdev->desc->enable_mask, val << shift);  in max77686_set_suspend_disable()
134 	max77686->opmode[id] = val;  in max77686_set_suspend_disable()
138 /* Some LDOs supports [LPM/Normal]ON mode during suspend state */
140 				     unsigned int mode)  in max77686_set_suspend_mode()  argument
146 	/* BUCK[5-9] doesn't support this feature */  in max77686_set_suspend_mode()
150 	switch (mode) {  in max77686_set_suspend_mode()
151 	case REGULATOR_MODE_IDLE:			/* ON in LP Mode */  in max77686_set_suspend_mode()
154 	case REGULATOR_MODE_NORMAL:			/* ON in Normal Mode */  in max77686_set_suspend_mode()
159 			rdev->desc->name, mode);  in max77686_set_suspend_mode()
160 		return -EINVAL;  in max77686_set_suspend_mode()
163 	ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77686_set_suspend_mode()
164 				  rdev->desc->enable_mask,  in max77686_set_suspend_mode()
169 	max77686->opmode[id] = val;  in max77686_set_suspend_mode()
173 /* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
175 				     unsigned int mode)  in max77686_ldo_set_suspend_mode()  argument
181 	switch (mode) {  in max77686_ldo_set_suspend_mode()
185 	case REGULATOR_MODE_IDLE:			/* ON in LP Mode */  in max77686_ldo_set_suspend_mode()
188 	case REGULATOR_MODE_NORMAL:			/* ON in Normal Mode */  in max77686_ldo_set_suspend_mode()
193 			rdev->desc->name, mode);  in max77686_ldo_set_suspend_mode()
194 		return -EINVAL;  in max77686_ldo_set_suspend_mode()
197 	ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77686_ldo_set_suspend_mode()
198 				 rdev->desc->enable_mask,  in max77686_ldo_set_suspend_mode()
203 	max77686->opmode[id] = val;  in max77686_ldo_set_suspend_mode()
215 	if (max77686->opmode[id] == MAX77686_OFF_PWRREQ)  in max77686_enable()
216 		max77686->opmode[id] = max77686_map_normal_mode(max77686, id);  in max77686_enable()
218 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77686_enable()
219 				  rdev->desc->enable_mask,  in max77686_enable()
220 				  max77686->opmode[id] << shift);  in max77686_enable()
241 			rdev->desc->name, ramp_delay);  in max77686_set_ramp_delay()
244 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in max77686_set_ramp_delay()
252 	struct max77686_data *max77686 = config->driver_data;  in max77686_of_parse_cb()
255 	switch (desc->id) {  in max77686_of_parse_cb()
259 		config->ena_gpiod = fwnode_gpiod_get_index(  in max77686_of_parse_cb()
264 				"max77686-regulator");  in max77686_of_parse_cb()
265 		if (IS_ERR(config->ena_gpiod))  in max77686_of_parse_cb()
266 			config->ena_gpiod = NULL;  in max77686_of_parse_cb()
272 	if (config->ena_gpiod) {  in max77686_of_parse_cb()
273 		set_bit(desc->id, max77686->gpio_enabled);  in max77686_of_parse_cb()
275 		ret = regmap_update_bits(config->regmap, desc->enable_reg,  in max77686_of_parse_cb()
276 					 desc->enable_mask,  in max77686_of_parse_cb()
279 			gpiod_put(config->ena_gpiod);  in max77686_of_parse_cb()
280 			config->ena_gpiod = NULL;  in max77686_of_parse_cb()
340 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
350 	.vsel_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
352 	.enable_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
359 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
368 	.vsel_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
370 	.enable_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
377 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
386 	.vsel_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
388 	.enable_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
395 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
404 	.vsel_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
406 	.enable_reg	= MAX77686_REG_LDO1CTRL1 + num - 1,		\
413 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
424 	.vsel_reg	= MAX77686_REG_BUCK5OUT + (num - 5) * 2,	\
426 	.enable_reg	= MAX77686_REG_BUCK5CTRL + (num - 5) * 2,	\
432 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
450 	.regulators_node	= of_match_ptr("voltage-regulators"),	\
460 	.vsel_reg	= MAX77686_REG_BUCK2DVS1 + (num - 2) * 10,	\
462 	.enable_reg	= MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10,	\
507 	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);  in max77686_pmic_probe()
512 	dev_dbg(&pdev->dev, "%s\n", __func__);  in max77686_pmic_probe()
514 	max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data),  in max77686_pmic_probe()
517 		return -ENOMEM;  in max77686_pmic_probe()
519 	max77686->dev = &pdev->dev;  in max77686_pmic_probe()
520 	config.dev = iodev->dev;  in max77686_pmic_probe()
521 	config.regmap = iodev->regmap;  in max77686_pmic_probe()
529 		max77686->opmode[id] = MAX77686_NORMAL;  in max77686_pmic_probe()
530 		rdev = devm_regulator_register(&pdev->dev,  in max77686_pmic_probe()
534 			dev_err(&pdev->dev,  in max77686_pmic_probe()
544 	{"max77686-pmic", 0},
551 		.name = "max77686-pmic",