projects / linux-block.git / blame
| 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 | ||
| 2f2455db | 25 | static int axp20x_i2c_probe(struct i2c_client *i2c) |
| 4fd41151 CYT |
26 | { |
| 27 | struct axp20x_dev *axp20x; | |
| 28 | int ret; | |
| 29 | ||
| 30 | axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); | |
| 31 | if (!axp20x) | |
| 32 | return -ENOMEM; | |
| 33 | ||
| 34 | axp20x->dev = &i2c->dev; | |
| 35 | axp20x->irq = i2c->irq; | |
| 36 | dev_set_drvdata(axp20x->dev, axp20x); | |
| 37 | ||
| 38 | ret = axp20x_match_device(axp20x); | |
| 39 | if (ret) | |
| 40 | return ret; | |
| 41 | ||
| 42 | axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); | |
| 43 | if (IS_ERR(axp20x->regmap)) { | |
| 44 | ret = PTR_ERR(axp20x->regmap); | |
| 45 | dev_err(&i2c->dev, "regmap init failed: %d\n", ret); | |
| 46 | return ret; | |
| 47 | } | |
| 48 | ||
| 49 | return axp20x_device_probe(axp20x); | |
| 50 | } | |
| 51 | ||
| ed5c2f5f | 52 | static void axp20x_i2c_remove(struct i2c_client *i2c) |
| 4fd41151 CYT |
53 | { |
| 54 | struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); | |
| 55 | ||
| 3c15e00e | 56 | axp20x_device_remove(axp20x); |
| 4fd41151 CYT |
57 | } |
| 58 | ||
| 06b324fc | 59 | #ifdef CONFIG_OF |
| 4fd41151 CYT |
60 | static const struct of_device_id axp20x_i2c_of_match[] = { |
| 61 | { .compatible = "x-powers,axp152", .data = (void *)AXP152_ID }, | |
| 63eeabbc | 62 | { .compatible = "x-powers,axp192", .data = (void *)AXP192_ID }, |
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63 | { .compatible = "x-powers,axp202", .data = (void *)AXP202_ID }, |
| 64 | { .compatible = "x-powers,axp209", .data = (void *)AXP209_ID }, | |
| 65 | { .compatible = "x-powers,axp221", .data = (void *)AXP221_ID }, | |
| 4f799e47 | 66 | { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, |
| 75c8cb2f | 67 | { .compatible = "x-powers,axp313a", .data = (void *)AXP313A_ID }, |
| 85c30785 | 68 | { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, |
| 99e19b7c | 69 | { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, |
| e0f8ad2a | 70 | { .compatible = "x-powers,axp15060", .data = (void *)AXP15060_ID }, |
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71 | { }, |
| 72 | }; | |
| 73 | MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match); | |
| 06b324fc | 74 | #endif |
| 4fd41151 | 75 | |
| 4fd41151 | 76 | static const struct i2c_device_id axp20x_i2c_id[] = { |
| 41751b03 | 77 | { "axp152", 0 }, |
| 63eeabbc | 78 | { "axp192", 0 }, |
| 41751b03 HG |
79 | { "axp202", 0 }, |
| 80 | { "axp209", 0 }, | |
| 81 | { "axp221", 0 }, | |
| 4f799e47 | 82 | { "axp223", 0 }, |
| 75c8cb2f | 83 | { "axp313a", 0 }, |
| 85c30785 | 84 | { "axp803", 0 }, |
| 99e19b7c | 85 | { "axp806", 0 }, |
| e0f8ad2a | 86 | { "axp15060", 0 }, |
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87 | { }, |
| 88 | }; | |
| 89 | MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); | |
| 90 | ||
| 21b2998d | 91 | #ifdef CONFIG_ACPI |
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92 | static const struct acpi_device_id axp20x_i2c_acpi_match[] = { |
| 93 | { | |
| 94 | .id = "INT33F4", | |
| 95 | .driver_data = AXP288_ID, | |
| 96 | }, | |
| 97 | { }, | |
| 98 | }; | |
| 99 | MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); | |
| 21b2998d | 100 | #endif |
| 4fd41151 CYT |
101 | |
| 102 | static struct i2c_driver axp20x_i2c_driver = { | |
| 103 | .driver = { | |
| 104 | .name = "axp20x-i2c", | |
| 105 | .of_match_table = of_match_ptr(axp20x_i2c_of_match), | |
| 106 | .acpi_match_table = ACPI_PTR(axp20x_i2c_acpi_match), | |
| 107 | }, | |
| 9816d859 | 108 | .probe = axp20x_i2c_probe, |
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109 | .remove = axp20x_i2c_remove, |
| 110 | .id_table = axp20x_i2c_id, | |
| 111 | }; | |
| 112 | ||
| 113 | module_i2c_driver(axp20x_i2c_driver); | |
| 114 | ||
| 115 | MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X"); | |
| 116 | MODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); | |
| 117 | MODULE_LICENSE("GPL"); |