[linux-2.6-block.git] / drivers / mfd / max77541.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2022 Analog Devices, Inc.
 * Driver for the MAX77540 and MAX77541
 */

#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max77541.h>
#include <linux/property.h>
#include <linux/regmap.h>

static const struct regmap_config max77541_regmap_config = {
	.reg_bits   = 8,
	.val_bits   = 8,
};

static const struct regmap_irq max77541_src_irqs[] = {
	{ .mask = MAX77541_BIT_INT_SRC_TOPSYS },
	{ .mask = MAX77541_BIT_INT_SRC_BUCK },
};

static const struct regmap_irq_chip max77541_src_irq_chip = {
	.name		= "max77541-src",
	.status_base	= MAX77541_REG_INT_SRC,
	.mask_base	= MAX77541_REG_INT_SRC_M,
	.num_regs	= 1,
	.irqs		= max77541_src_irqs,
	.num_irqs       = ARRAY_SIZE(max77541_src_irqs),
};

static const struct regmap_irq max77541_topsys_irqs[] = {
	{ .mask = MAX77541_BIT_TOPSYS_INT_TJ_120C },
	{ .mask = MAX77541_BIT_TOPSYS_INT_TJ_140C },
	{ .mask = MAX77541_BIT_TOPSYS_INT_TSHDN },
	{ .mask = MAX77541_BIT_TOPSYS_INT_UVLO },
	{ .mask = MAX77541_BIT_TOPSYS_INT_ALT_SWO },
	{ .mask = MAX77541_BIT_TOPSYS_INT_EXT_FREQ_DET },
};

static const struct regmap_irq_chip max77541_topsys_irq_chip = {
	.name		= "max77541-topsys",
	.status_base	= MAX77541_REG_TOPSYS_INT,
	.mask_base	= MAX77541_REG_TOPSYS_INT_M,
	.num_regs	= 1,
	.irqs		= max77541_topsys_irqs,
	.num_irqs	= ARRAY_SIZE(max77541_topsys_irqs),
};

static const struct regmap_irq max77541_buck_irqs[] = {
	{ .mask = MAX77541_BIT_BUCK_INT_M1_POK_FLT },
	{ .mask = MAX77541_BIT_BUCK_INT_M2_POK_FLT },
	{ .mask = MAX77541_BIT_BUCK_INT_M1_SCFLT },
	{ .mask = MAX77541_BIT_BUCK_INT_M2_SCFLT },
};

static const struct regmap_irq_chip max77541_buck_irq_chip = {
	.name		= "max77541-buck",
	.status_base	= MAX77541_REG_BUCK_INT,
	.mask_base	= MAX77541_REG_BUCK_INT_M,
	.num_regs	= 1,
	.irqs		= max77541_buck_irqs,
	.num_irqs	= ARRAY_SIZE(max77541_buck_irqs),
};

static const struct regmap_irq max77541_adc_irqs[] = {
	{ .mask = MAX77541_BIT_ADC_INT_CH1_I },
	{ .mask = MAX77541_BIT_ADC_INT_CH2_I },
	{ .mask = MAX77541_BIT_ADC_INT_CH3_I },
	{ .mask = MAX77541_BIT_ADC_INT_CH6_I },
};

static const struct regmap_irq_chip max77541_adc_irq_chip = {
	.name		= "max77541-adc",
	.status_base	= MAX77541_REG_ADC_INT,
	.mask_base	= MAX77541_REG_ADC_INT_M,
	.num_regs	= 1,
	.irqs		= max77541_adc_irqs,
	.num_irqs	= ARRAY_SIZE(max77541_adc_irqs),
};

static const struct mfd_cell max77540_devs[] = {
	MFD_CELL_OF("max77540-regulator", NULL, NULL, 0, 0, NULL),
};

static const struct mfd_cell max77541_devs[] = {
	MFD_CELL_OF("max77541-regulator", NULL, NULL, 0, 0, NULL),
	MFD_CELL_OF("max77541-adc", NULL, NULL, 0, 0, NULL),
};

static int max77541_pmic_irq_init(struct device *dev)
{
	struct max77541 *max77541 = dev_get_drvdata(dev);
	int irq = max77541->i2c->irq;
	int ret;

	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
				       IRQF_ONESHOT | IRQF_SHARED, 0,
				       &max77541_src_irq_chip,
				       &max77541->irq_data);
	if (ret)
		return ret;

	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
				       IRQF_ONESHOT | IRQF_SHARED, 0,
				       &max77541_topsys_irq_chip,
				       &max77541->irq_topsys);
	if (ret)
		return ret;

	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
				       IRQF_ONESHOT | IRQF_SHARED, 0,
				       &max77541_buck_irq_chip,
				       &max77541->irq_buck);
	if (ret)
		return ret;

	if (max77541->id == MAX77541) {
		ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
					       IRQF_ONESHOT | IRQF_SHARED, 0,
					       &max77541_adc_irq_chip,
					       &max77541->irq_adc);
		if (ret)
			return ret;
	}

	return 0;
}

static int max77541_pmic_setup(struct device *dev)
{
	struct max77541 *max77541 = dev_get_drvdata(dev);
	const struct mfd_cell *cells;
	int n_devs;
	int ret;

	switch (max77541->id) {
	case MAX77540:
		cells =  max77540_devs;
		n_devs = ARRAY_SIZE(max77540_devs);
		break;
	case MAX77541:
		cells =  max77541_devs;
		n_devs = ARRAY_SIZE(max77541_devs);
		break;
	default:
		return -EINVAL;
	}

	ret = max77541_pmic_irq_init(dev);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to initialize IRQ\n");

	ret = device_init_wakeup(dev, true);
	if (ret)
		return dev_err_probe(dev, ret, "Unable to init wakeup\n");

	return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
				    cells, n_devs, NULL, 0, NULL);
}

static int max77541_probe(struct i2c_client *client)
{
	const struct i2c_device_id *id = i2c_client_get_device_id(client);
	struct device *dev = &client->dev;
	struct max77541 *max77541;

	max77541 = devm_kzalloc(dev, sizeof(*max77541), GFP_KERNEL);
	if (!max77541)
		return -ENOMEM;

	i2c_set_clientdata(client, max77541);
	max77541->i2c = client;

	max77541->id  = (enum max7754x_ids)device_get_match_data(dev);
	if (!max77541->id)
		max77541->id  = (enum max7754x_ids)id->driver_data;

	if (!max77541->id)
		return -EINVAL;

	max77541->regmap = devm_regmap_init_i2c(client,
						&max77541_regmap_config);
	if (IS_ERR(max77541->regmap))
		return dev_err_probe(dev, PTR_ERR(max77541->regmap),
				     "Failed to allocate register map\n");

	return max77541_pmic_setup(dev);
}

static const struct of_device_id max77541_of_id[] = {
	{
		.compatible = "adi,max77540",
		.data = (void *)MAX77540,
	},
	{
		.compatible = "adi,max77541",
		.data = (void *)MAX77541,
	},
	{ }
};
MODULE_DEVICE_TABLE(of, max77541_of_id);

static const struct i2c_device_id max77541_id[] = {
	{ "max77540", MAX77540 },
	{ "max77541", MAX77541 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, max77541_id);

static struct i2c_driver max77541_driver = {
	.driver = {
		.name = "max77541",
		.of_match_table = max77541_of_id,
	},
	.probe = max77541_probe,
	.id_table = max77541_id,
};
module_i2c_driver(max77541_driver);

MODULE_DESCRIPTION("MAX7740/MAX7741 Driver");
MODULE_AUTHOR("Okan Sahin <okan.sahin@analog.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
e0cbc202 OS	1	// SPDX-License-Identifier: GPL-2.0-or-later
	2	/*
	3	* Copyright (c) 2022 Analog Devices, Inc.
	4	* Driver for the MAX77540 and MAX77541
	5	*/
	6
	7	#include <linux/i2c.h>
	8	#include <linux/interrupt.h>
	9	#include <linux/mfd/core.h>
	10	#include <linux/mfd/max77541.h>
	11	#include <linux/property.h>
	12	#include <linux/regmap.h>
	13
	14	static const struct regmap_config max77541_regmap_config = {
	15	.reg_bits = 8,
	16	.val_bits = 8,
	17	};
	18
	19	static const struct regmap_irq max77541_src_irqs[] = {
	20	{ .mask = MAX77541_BIT_INT_SRC_TOPSYS },
	21	{ .mask = MAX77541_BIT_INT_SRC_BUCK },
	22	};
	23
	24	static const struct regmap_irq_chip max77541_src_irq_chip = {
	25	.name = "max77541-src",
	26	.status_base = MAX77541_REG_INT_SRC,
	27	.mask_base = MAX77541_REG_INT_SRC_M,
	28	.num_regs = 1,
	29	.irqs = max77541_src_irqs,
	30	.num_irqs = ARRAY_SIZE(max77541_src_irqs),
	31	};
	32
	33	static const struct regmap_irq max77541_topsys_irqs[] = {
	34	{ .mask = MAX77541_BIT_TOPSYS_INT_TJ_120C },
	35	{ .mask = MAX77541_BIT_TOPSYS_INT_TJ_140C },
	36	{ .mask = MAX77541_BIT_TOPSYS_INT_TSHDN },
	37	{ .mask = MAX77541_BIT_TOPSYS_INT_UVLO },
	38	{ .mask = MAX77541_BIT_TOPSYS_INT_ALT_SWO },
	39	{ .mask = MAX77541_BIT_TOPSYS_INT_EXT_FREQ_DET },
	40	};
	41
	42	static const struct regmap_irq_chip max77541_topsys_irq_chip = {
	43	.name = "max77541-topsys",
	44	.status_base = MAX77541_REG_TOPSYS_INT,
	45	.mask_base = MAX77541_REG_TOPSYS_INT_M,
	46	.num_regs = 1,
	47	.irqs = max77541_topsys_irqs,
	48	.num_irqs = ARRAY_SIZE(max77541_topsys_irqs),
	49	};
	50
	51	static const struct regmap_irq max77541_buck_irqs[] = {
	52	{ .mask = MAX77541_BIT_BUCK_INT_M1_POK_FLT },
	53	{ .mask = MAX77541_BIT_BUCK_INT_M2_POK_FLT },
	54	{ .mask = MAX77541_BIT_BUCK_INT_M1_SCFLT },
	55	{ .mask = MAX77541_BIT_BUCK_INT_M2_SCFLT },
	56	};
	57
	58	static const struct regmap_irq_chip max77541_buck_irq_chip = {
	59	.name = "max77541-buck",
	60	.status_base = MAX77541_REG_BUCK_INT,
	61	.mask_base = MAX77541_REG_BUCK_INT_M,
	62	.num_regs = 1,
	63	.irqs = max77541_buck_irqs,
	64	.num_irqs = ARRAY_SIZE(max77541_buck_irqs),
65	};
66
67	static const struct regmap_irq max77541_adc_irqs[] = {
68	{ .mask = MAX77541_BIT_ADC_INT_CH1_I },
69	{ .mask = MAX77541_BIT_ADC_INT_CH2_I },
70	{ .mask = MAX77541_BIT_ADC_INT_CH3_I },
71	{ .mask = MAX77541_BIT_ADC_INT_CH6_I },
72	};
73
74	static const struct regmap_irq_chip max77541_adc_irq_chip = {
75	.name = "max77541-adc",
76	.status_base = MAX77541_REG_ADC_INT,
77	.mask_base = MAX77541_REG_ADC_INT_M,
78	.num_regs = 1,
79	.irqs = max77541_adc_irqs,
80	.num_irqs = ARRAY_SIZE(max77541_adc_irqs),
81	};
82
83	static const struct mfd_cell max77540_devs[] = {
84	MFD_CELL_OF("max77540-regulator", NULL, NULL, 0, 0, NULL),
85	};
86
87	static const struct mfd_cell max77541_devs[] = {
88	MFD_CELL_OF("max77541-regulator", NULL, NULL, 0, 0, NULL),
89	MFD_CELL_OF("max77541-adc", NULL, NULL, 0, 0, NULL),
90	};
91
92	static int max77541_pmic_irq_init(struct device *dev)
93	{
94	struct max77541 *max77541 = dev_get_drvdata(dev);
95	int irq = max77541->i2c->irq;
96	int ret;
97
98	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
99	IRQF_ONESHOT \| IRQF_SHARED, 0,
100	&max77541_src_irq_chip,
101	&max77541->irq_data);
102	if (ret)
103	return ret;
104
105	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
106	IRQF_ONESHOT \| IRQF_SHARED, 0,
107	&max77541_topsys_irq_chip,
108	&max77541->irq_topsys);
109	if (ret)
110	return ret;
111
112	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
113	IRQF_ONESHOT \| IRQF_SHARED, 0,
114	&max77541_buck_irq_chip,
115	&max77541->irq_buck);
116	if (ret)
117	return ret;
118
119	if (max77541->id == MAX77541) {
120	ret = devm_regmap_add_irq_chip(dev, max77541->regmap, irq,
121	IRQF_ONESHOT \| IRQF_SHARED, 0,
122	&max77541_adc_irq_chip,
123	&max77541->irq_adc);
124	if (ret)
125	return ret;
126	}
127
128	return 0;
129	}
130
131	static int max77541_pmic_setup(struct device *dev)
132	{
133	struct max77541 *max77541 = dev_get_drvdata(dev);
134	const struct mfd_cell *cells;
135	int n_devs;
136	int ret;
137
138	switch (max77541->id) {
139	case MAX77540:
140	cells = max77540_devs;
141	n_devs = ARRAY_SIZE(max77540_devs);
142	break;
143	case MAX77541:
144	cells = max77541_devs;
145	n_devs = ARRAY_SIZE(max77541_devs);
146	break;
147	default:
148	return -EINVAL;
149	}
150
151	ret = max77541_pmic_irq_init(dev);
152	if (ret)
153	return dev_err_probe(dev, ret, "Failed to initialize IRQ\n");
154
155	ret = device_init_wakeup(dev, true);
156	if (ret)
157	return dev_err_probe(dev, ret, "Unable to init wakeup\n");
158
159	return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
160	cells, n_devs, NULL, 0, NULL);
161	}
162
163	static int max77541_probe(struct i2c_client *client)
164	{
165	const struct i2c_device_id *id = i2c_client_get_device_id(client);
166	struct device *dev = &client->dev;
167	struct max77541 *max77541;
168
169	max77541 = devm_kzalloc(dev, sizeof(*max77541), GFP_KERNEL);
170	if (!max77541)
171	return -ENOMEM;
172
173	i2c_set_clientdata(client, max77541);
174	max77541->i2c = client;
175
176	max77541->id = (enum max7754x_ids)device_get_match_data(dev);
177	if (!max77541->id)
178	max77541->id = (enum max7754x_ids)id->driver_data;
179
180	if (!max77541->id)
181	return -EINVAL;
182
183	max77541->regmap = devm_regmap_init_i2c(client,
184	&max77541_regmap_config);
185	if (IS_ERR(max77541->regmap))
186	return dev_err_probe(dev, PTR_ERR(max77541->regmap),
187	"Failed to allocate register map\n");
188
189	return max77541_pmic_setup(dev);
190	}
191
192	static const struct of_device_id max77541_of_id[] = {
193	{
194	.compatible = "adi,max77540",
195	.data = (void *)MAX77540,
196	},
197	{
198	.compatible = "adi,max77541",
199	.data = (void *)MAX77541,
200	},
201	{ }
202	};
203	MODULE_DEVICE_TABLE(of, max77541_of_id);
204
205	static const struct i2c_device_id max77541_id[] = {
206	{ "max77540", MAX77540 },
207	{ "max77541", MAX77541 },
208	{ }
209	};
210	MODULE_DEVICE_TABLE(i2c, max77541_id);
211
212	static struct i2c_driver max77541_driver = {
213	.driver = {
214	.name = "max77541",
215	.of_match_table = max77541_of_id,
216	},
a6b6790c	217	.probe = max77541_probe,
e0cbc202 OS	218	.id_table = max77541_id,
	219	};
	220	module_i2c_driver(max77541_driver);
	221
	222	MODULE_DESCRIPTION("MAX7740/MAX7741 Driver");
	223	MODULE_AUTHOR("Okan Sahin <okan.sahin@analog.com>");
	224	MODULE_LICENSE("GPL");