]>
Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
4fd41151 CYT |
2 | /* |
3 | * I2C driver for the X-Powers' Power Management ICs | |
4 | * | |
5 | * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC | |
6 | * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature | |
7 | * as well as configurable GPIOs. | |
8 | * | |
9 | * This driver supports the I2C variants. | |
10 | * | |
11 | * Copyright (C) 2014 Carlo Caione | |
12 | * | |
13 | * Author: Carlo Caione <carlo@caione.org> | |
4fd41151 CYT |
14 | */ |
15 | ||
16 | #include <linux/acpi.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/mfd/axp20x.h> | |
21 | #include <linux/of.h> | |
22 | #include <linux/regmap.h> | |
23 | #include <linux/slab.h> | |
24 | ||
25 | static int axp20x_i2c_probe(struct i2c_client *i2c, | |
26 | const struct i2c_device_id *id) | |
27 | { | |
28 | struct axp20x_dev *axp20x; | |
29 | int ret; | |
30 | ||
31 | axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); | |
32 | if (!axp20x) | |
33 | return -ENOMEM; | |
34 | ||
35 | axp20x->dev = &i2c->dev; | |
36 | axp20x->irq = i2c->irq; | |
37 | dev_set_drvdata(axp20x->dev, axp20x); | |
38 | ||
39 | ret = axp20x_match_device(axp20x); | |
40 | if (ret) | |
41 | return ret; | |
42 | ||
43 | axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); | |
44 | if (IS_ERR(axp20x->regmap)) { | |
45 | ret = PTR_ERR(axp20x->regmap); | |
46 | dev_err(&i2c->dev, "regmap init failed: %d\n", ret); | |
47 | return ret; | |
48 | } | |
49 | ||
50 | return axp20x_device_probe(axp20x); | |
51 | } | |
52 | ||
53 | static int axp20x_i2c_remove(struct i2c_client *i2c) | |
54 | { | |
55 | struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); | |
56 | ||
57 | return axp20x_device_remove(axp20x); | |
58 | } | |
59 | ||
60 | static const struct of_device_id axp20x_i2c_of_match[] = { | |
61 | { .compatible = "x-powers,axp152", .data = (void *)AXP152_ID }, | |
62 | { .compatible = "x-powers,axp202", .data = (void *)AXP202_ID }, | |
63 | { .compatible = "x-powers,axp209", .data = (void *)AXP209_ID }, | |
64 | { .compatible = "x-powers,axp221", .data = (void *)AXP221_ID }, | |
4f799e47 | 65 | { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, |
99e19b7c | 66 | { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, |
4fd41151 CYT |
67 | { }, |
68 | }; | |
69 | MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match); | |
70 | ||
4fd41151 | 71 | static const struct i2c_device_id axp20x_i2c_id[] = { |
41751b03 HG |
72 | { "axp152", 0 }, |
73 | { "axp202", 0 }, | |
74 | { "axp209", 0 }, | |
75 | { "axp221", 0 }, | |
4f799e47 | 76 | { "axp223", 0 }, |
99e19b7c | 77 | { "axp806", 0 }, |
4fd41151 CYT |
78 | { }, |
79 | }; | |
80 | MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); | |
81 | ||
82 | static const struct acpi_device_id axp20x_i2c_acpi_match[] = { | |
83 | { | |
84 | .id = "INT33F4", | |
85 | .driver_data = AXP288_ID, | |
86 | }, | |
87 | { }, | |
88 | }; | |
89 | MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); | |
90 | ||
91 | static struct i2c_driver axp20x_i2c_driver = { | |
92 | .driver = { | |
93 | .name = "axp20x-i2c", | |
94 | .of_match_table = of_match_ptr(axp20x_i2c_of_match), | |
95 | .acpi_match_table = ACPI_PTR(axp20x_i2c_acpi_match), | |
96 | }, | |
97 | .probe = axp20x_i2c_probe, | |
98 | .remove = axp20x_i2c_remove, | |
99 | .id_table = axp20x_i2c_id, | |
100 | }; | |
101 | ||
102 | module_i2c_driver(axp20x_i2c_driver); | |
103 | ||
104 | MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X"); | |
105 | MODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); | |
106 | MODULE_LICENSE("GPL"); |