1 // SPDX-License-Identifier: GPL-2.0+
3 // MFD core driver for the Maxim MAX77843
14 #include <linux/mfd/max77693-common.h>
15 #include <linux/mfd/max77843-private.h>
21 		.name = "max77843-muic",
22 		.of_compatible = "maxim,max77843-muic",
24 		.name = "max77843-regulator",
25 		.of_compatible = "maxim,max77843-regulator",
27 		.name = "max77843-charger",
28 		.of_compatible = "maxim,max77843-charger"
30 		.name = "max77843-fuelgauge",
31 		.of_compatible = "maxim,max77843-fuelgauge",
33 		.name = "max77843-haptic",
34 		.of_compatible = "maxim,max77843-haptic",
59 	.name		= "max77843",
68 /* Charger and Charger regulator use same regmap. */
69 static int max77843_chg_init(struct max77693_dev *max77843)  in max77843_chg_init()  argument
73 	max77843->i2c_chg = i2c_new_dummy_device(max77843->i2c->adapter, I2C_ADDR_CHG);  in max77843_chg_init()
74 	if (IS_ERR(max77843->i2c_chg)) {  in max77843_chg_init()
75 		dev_err(&max77843->i2c->dev,  in max77843_chg_init()
77 		return PTR_ERR(max77843->i2c_chg);  in max77843_chg_init()
79 	i2c_set_clientdata(max77843->i2c_chg, max77843);  in max77843_chg_init()
81 	max77843->regmap_chg = devm_regmap_init_i2c(max77843->i2c_chg,  in max77843_chg_init()
83 	if (IS_ERR(max77843->regmap_chg)) {  in max77843_chg_init()
84 		ret = PTR_ERR(max77843->regmap_chg);  in max77843_chg_init()
91 	i2c_unregister_device(max77843->i2c_chg);  in max77843_chg_init()
99 	struct max77693_dev *max77843;  in max77843_probe()  local
103 	max77843 = devm_kzalloc(&i2c->dev, sizeof(*max77843), GFP_KERNEL);  in max77843_probe()
104 	if (!max77843)  in max77843_probe()
105 		return -ENOMEM;  in max77843_probe()
107 	i2c_set_clientdata(i2c, max77843);  in max77843_probe()
108 	max77843->dev = &i2c->dev;  in max77843_probe()
109 	max77843->i2c = i2c;  in max77843_probe()
110 	max77843->irq = i2c->irq;  in max77843_probe()
111 	max77843->type = id->driver_data;  in max77843_probe()
113 	max77843->regmap = devm_regmap_init_i2c(i2c,  in max77843_probe()
115 	if (IS_ERR(max77843->regmap)) {  in max77843_probe()
116 		dev_err(&i2c->dev, "Failed to allocate topsys register map\n");  in max77843_probe()
117 		return PTR_ERR(max77843->regmap);  in max77843_probe()
120 	ret = regmap_add_irq_chip(max77843->regmap, max77843->irq,  in max77843_probe()
122 			0, &max77843_irq_chip, &max77843->irq_data_topsys);  in max77843_probe()
124 		dev_err(&i2c->dev, "Failed to add TOPSYS IRQ chip\n");  in max77843_probe()
128 	ret = regmap_read(max77843->regmap,  in max77843_probe()
131 		dev_err(&i2c->dev, "Failed to read PMIC ID\n");  in max77843_probe()
134 	dev_info(&i2c->dev, "device ID: 0x%x\n", reg_data);  in max77843_probe()
136 	ret = max77843_chg_init(max77843);  in max77843_probe()
138 		dev_err(&i2c->dev, "Failed to init Charger\n");  in max77843_probe()
142 	ret = regmap_update_bits(max77843->regmap,  in max77843_probe()
147 		dev_err(&i2c->dev, "Failed to unmask interrupt source\n");  in max77843_probe()
151 	ret = mfd_add_devices(max77843->dev, -1, max77843_devs,  in max77843_probe()
154 		dev_err(&i2c->dev, "Failed to add mfd device\n");  in max77843_probe()
158 	device_init_wakeup(max77843->dev, true);  in max77843_probe()
163 	regmap_del_irq_chip(max77843->irq, max77843->irq_data_topsys);  in max77843_probe()
169 	{ .compatible = "maxim,max77843", },
174 	{ "max77843", TYPE_MAX77843, },
181 	struct max77693_dev *max77843 = i2c_get_clientdata(i2c);  in max77843_suspend()  local
183 	disable_irq(max77843->irq);  in max77843_suspend()
185 		enable_irq_wake(max77843->irq);  in max77843_suspend()
193 	struct max77693_dev *max77843 = i2c_get_clientdata(i2c);  in max77843_resume()  local
196 		disable_irq_wake(max77843->irq);  in max77843_resume()
197 	enable_irq(max77843->irq);  in max77843_resume()
206 		.name = "max77843",