1 // SPDX-License-Identifier: GPL-2.0
3  * Power-source driver for Bay Trail Crystal Cove PMIC
5  * Copyright (c) 2023 Hans de Goede <[email protected]>
8  * Copyright (C) 2013 Intel Corporation
86 	struct crc_pwrsrc_data *data = seq->private;  in pwrsrc_show()
90 	ret = regmap_read(data->regmap, CRYSTALCOVE_SPWRSRC_REG, &reg_val);  in pwrsrc_show()
100 	struct crc_pwrsrc_data *data = seq->private;  in resetsrc_show()
102 	crc_pwrsrc_log(seq, "Last shutdown caused", pwrsrc_resetsrc0_info, data->resetsrc0);  in resetsrc_show()
103 	crc_pwrsrc_log(seq, "Last shutdown caused", pwrsrc_resetsrc1_info, data->resetsrc1);  in resetsrc_show()
109 	struct crc_pwrsrc_data *data = seq->private;  in wakesrc_show()
111 	crc_pwrsrc_log(seq, "Last wake caused", pwrsrc_wakesrc_info, data->wakesrc);  in wakesrc_show()
124 	ret = regmap_read(data->regmap, reg, val);  in crc_pwrsrc_read_and_clear()
128 	return regmap_write(data->regmap, reg, *val);  in crc_pwrsrc_read_and_clear()
136 	if (regmap_read(data->regmap, CRYSTALCOVE_PWRSRC_IRQ, &irq_mask))  in crc_pwrsrc_irq_handler()
139 	regmap_write(data->regmap, CRYSTALCOVE_PWRSRC_IRQ, irq_mask);  in crc_pwrsrc_irq_handler()
141 	power_supply_changed(data->psy);  in crc_pwrsrc_irq_handler()
154 		return -EINVAL;  in crc_pwrsrc_psy_get_property()
156 	ret = regmap_read(data->regmap, CRYSTALCOVE_SPWRSRC_REG, &pwrsrc);  in crc_pwrsrc_psy_get_property()
160 	val->intval = !!(pwrsrc & (CRYSTALCOVE_SPWRSRC_USB |  in crc_pwrsrc_psy_get_property()
179 	struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);  in crc_pwrsrc_probe()
180 	struct device *dev = &pdev->dev;  in crc_pwrsrc_probe()
186 		return -ENOMEM;  in crc_pwrsrc_probe()
188 	data->regmap = pmic->regmap;  in crc_pwrsrc_probe()
197 	ret = crc_pwrsrc_read_and_clear(data, CRYSTALCOVE_RESETSRC0_REG, &data->resetsrc0);  in crc_pwrsrc_probe()
201 	ret = crc_pwrsrc_read_and_clear(data, CRYSTALCOVE_RESETSRC1_REG, &data->resetsrc1);  in crc_pwrsrc_probe()
205 	ret = crc_pwrsrc_read_and_clear(data, CRYSTALCOVE_WAKESRC_REG, &data->wakesrc);  in crc_pwrsrc_probe()
209 	if (device_property_read_bool(dev->parent, "linux,register-pwrsrc-power_supply")) {  in crc_pwrsrc_probe()
216 		data->psy = devm_power_supply_register(dev, &crc_pwrsrc_psy_desc, &psy_cfg);  in crc_pwrsrc_probe()
217 		if (IS_ERR(data->psy))  in crc_pwrsrc_probe()
218 			return dev_err_probe(dev, PTR_ERR(data->psy), "registering power-supply\n");  in crc_pwrsrc_probe()
227 	data->debug_dentry = debugfs_create_dir(KBUILD_MODNAME, NULL);  in crc_pwrsrc_probe()
228 	debugfs_create_file("pwrsrc", 0444, data->debug_dentry, data, &pwrsrc_fops);  in crc_pwrsrc_probe()
229 	debugfs_create_file("resetsrc", 0444, data->debug_dentry, data, &resetsrc_fops);  in crc_pwrsrc_probe()
230 	debugfs_create_file("wakesrc", 0444, data->debug_dentry, data, &wakesrc_fops);  in crc_pwrsrc_probe()
240 	debugfs_remove_recursive(data->debug_dentry);  in crc_pwrsrc_remove()
254 MODULE_DESCRIPTION("Power-source driver for Bay Trail Crystal Cove PMIC");