1 // SPDX-License-Identifier: GPL-2.0-only
3  * Motorola CPCAP PMIC regulator driver
5  * Based on cpcap-regulator.c from Motorola Linux kernel tree
6  * Copyright (C) 2009-2011 Motorola, Inc.
20 #include <linux/mfd/motorola-cpcap.h>
27 /* CPCAP_REG_ASSIGN2 bits - Resource Assignment 2 */
38 /* CPCAP_REG_ASSIGN3 bits - Resource Assignment 3 */
56 /* CPCAP_REG_ASSIGN4 bits - Resource Assignment 4 */
80  * primary when the regulator is turned on.
88  * The assign_reg and assign_mask seem to allow toggling between primary
170 	if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) {  in cpcap_regulator_enable()
171 		error = regmap_update_bits(rdev->regmap, regulator->assign_reg,  in cpcap_regulator_enable()
172 					   regulator->assign_mask,  in cpcap_regulator_enable()
173 					   regulator->assign_mask);  in cpcap_regulator_enable()
190 	if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) {  in cpcap_regulator_disable()
191 		error = regmap_update_bits(rdev->regmap, regulator->assign_reg,  in cpcap_regulator_disable()
192 					   regulator->assign_mask, 0);  in cpcap_regulator_disable()
198 	if (error && (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC)) {  in cpcap_regulator_disable()
199 		regmap_update_bits(rdev->regmap, regulator->assign_reg,  in cpcap_regulator_disable()
200 				   regulator->assign_mask,  in cpcap_regulator_disable()
201 				   regulator->assign_mask);  in cpcap_regulator_disable()
223 	regmap_read(rdev->regmap, rdev->desc->enable_reg, &value);  in cpcap_regulator_get_mode()
244 		return -EINVAL;  in cpcap_regulator_set_mode()
247 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,  in cpcap_regulator_set_mode()
483 		.compatible = "motorola,cpcap-regulator",
486 		.compatible = "motorola,mapphone-cpcap-regulator",
490 		.compatible = "motorola,xoom-cpcap-regulator",
504 	match_data = of_device_get_match_data(&pdev->dev);  in cpcap_regulator_probe()
506 		dev_err(&pdev->dev, "no configuration data found\n");  in cpcap_regulator_probe()
508 		return -ENODEV;  in cpcap_regulator_probe()
511 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in cpcap_regulator_probe()
513 		return -ENOMEM;  in cpcap_regulator_probe()
515 	ddata->reg = dev_get_regmap(pdev->dev.parent, NULL);  in cpcap_regulator_probe()
516 	if (!ddata->reg)  in cpcap_regulator_probe()
517 		return -ENODEV;  in cpcap_regulator_probe()
519 	ddata->dev = &pdev->dev;  in cpcap_regulator_probe()
520 	ddata->soc = match_data;  in cpcap_regulator_probe()
524 	config.dev = &pdev->dev;  in cpcap_regulator_probe()
525 	config.regmap = ddata->reg;  in cpcap_regulator_probe()
528 		const struct cpcap_regulator *regulator = &ddata->soc[i];  in cpcap_regulator_probe()
531 		if (!regulator->rdesc.name)  in cpcap_regulator_probe()
534 		if (regulator->rdesc.volt_table == unknown_val_tbl)  in cpcap_regulator_probe()
538 		rdev = devm_regulator_register(&pdev->dev,  in cpcap_regulator_probe()
539 					       &regulator->rdesc,  in cpcap_regulator_probe()
542 			dev_err(&pdev->dev, "failed to register regulator %s\n",  in cpcap_regulator_probe()
543 				regulator->rdesc.name);  in cpcap_regulator_probe()
555 		.name	= "cpcap-regulator",
563 MODULE_ALIAS("platform:cpcap-regulator");