1 // SPDX-License-Identifier: GPL-2.0-only
5  * RT5033 comprises multiple sub-devices switcing charger, fuel gauge,
6  * flash LED, current source, LDO and BUCK regulators.
17 #include <linux/mfd/rt5033-private.h>
38 	{ .name = "rt5033-regulator", },
40 		.name = "rt5033-charger",
41 		.of_compatible = "richtek,rt5033-charger",
43 		.name = "rt5033-led",
44 		.of_compatible = "richtek,rt5033-led",
60 	rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL);  in rt5033_i2c_probe()
62 		return -ENOMEM;  in rt5033_i2c_probe()
65 	rt5033->dev = &i2c->dev;  in rt5033_i2c_probe()
66 	rt5033->irq = i2c->irq;  in rt5033_i2c_probe()
67 	rt5033->wakeup = true;  in rt5033_i2c_probe()
69 	rt5033->regmap = devm_regmap_init_i2c(i2c, &rt5033_regmap_config);  in rt5033_i2c_probe()
70 	if (IS_ERR(rt5033->regmap)) {  in rt5033_i2c_probe()
71 		dev_err(&i2c->dev, "Failed to allocate register map.\n");  in rt5033_i2c_probe()
72 		return PTR_ERR(rt5033->regmap);  in rt5033_i2c_probe()
75 	ret = regmap_read(rt5033->regmap, RT5033_REG_DEVICE_ID, &dev_id);  in rt5033_i2c_probe()
77 		dev_err(&i2c->dev, "Device not found\n");  in rt5033_i2c_probe()
78 		return -ENODEV;  in rt5033_i2c_probe()
81 	dev_info(&i2c->dev, "Device found (rev. %d)\n", chip_rev);  in rt5033_i2c_probe()
83 	ret = devm_regmap_add_irq_chip(rt5033->dev, rt5033->regmap,  in rt5033_i2c_probe()
84 			rt5033->irq, IRQF_TRIGGER_FALLING | IRQF_ONESHOT,  in rt5033_i2c_probe()
85 			0, &rt5033_irq_chip, &rt5033->irq_data);  in rt5033_i2c_probe()
87 		dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",  in rt5033_i2c_probe()
88 							rt5033->irq, ret);  in rt5033_i2c_probe()
92 	ret = devm_mfd_add_devices(rt5033->dev, -1, rt5033_devs,  in rt5033_i2c_probe()
94 				   regmap_irq_get_domain(rt5033->irq_data));  in rt5033_i2c_probe()
96 		dev_err(&i2c->dev, "Failed to add RT5033 child devices.\n");  in rt5033_i2c_probe()
100 	if (rt5033->wakeup) {  in rt5033_i2c_probe()
101 		ret = devm_device_init_wakeup(rt5033->dev);  in rt5033_i2c_probe()
103 			return dev_err_probe(rt5033->dev, ret, "Failed to init wakeup\n");  in rt5033_i2c_probe()
131 MODULE_DESCRIPTION("Richtek RT5033 multi-function core driver");