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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
02071f0f CYT |
2 | /* |
3 | * RSB 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 RSB variants. | |
10 | * | |
11 | * Copyright (C) 2015 Chen-Yu Tsai | |
12 | * | |
13 | * Author: Chen-Yu Tsai <wens@csie.org> | |
02071f0f CYT |
14 | */ |
15 | ||
16 | #include <linux/acpi.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/mfd/axp20x.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/of.h> | |
21 | #include <linux/regmap.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/sunxi-rsb.h> | |
24 | ||
25 | static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev) | |
26 | { | |
27 | struct axp20x_dev *axp20x; | |
28 | int ret; | |
29 | ||
30 | axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL); | |
31 | if (!axp20x) | |
32 | return -ENOMEM; | |
33 | ||
34 | axp20x->dev = &rdev->dev; | |
35 | axp20x->irq = rdev->irq; | |
36 | dev_set_drvdata(&rdev->dev, axp20x); | |
37 | ||
38 | ret = axp20x_match_device(axp20x); | |
39 | if (ret) | |
40 | return ret; | |
41 | ||
42 | axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg); | |
43 | if (IS_ERR(axp20x->regmap)) { | |
44 | ret = PTR_ERR(axp20x->regmap); | |
45 | dev_err(&rdev->dev, "regmap init failed: %d\n", ret); | |
46 | return ret; | |
47 | } | |
48 | ||
49 | return axp20x_device_probe(axp20x); | |
50 | } | |
51 | ||
3c15e00e | 52 | static void axp20x_rsb_remove(struct sunxi_rsb_device *rdev) |
02071f0f CYT |
53 | { |
54 | struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev); | |
55 | ||
3c15e00e | 56 | axp20x_device_remove(axp20x); |
02071f0f CYT |
57 | } |
58 | ||
59 | static const struct of_device_id axp20x_rsb_of_match[] = { | |
60 | { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, | |
1578353e | 61 | { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, |
8824ee85 | 62 | { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, |
20147f0d | 63 | { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID }, |
7303733a | 64 | { .compatible = "x-powers,axp813", .data = (void *)AXP813_ID }, |
02071f0f CYT |
65 | { }, |
66 | }; | |
67 | MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match); | |
68 | ||
69 | static struct sunxi_rsb_driver axp20x_rsb_driver = { | |
70 | .driver = { | |
71 | .name = "axp20x-rsb", | |
72 | .of_match_table = of_match_ptr(axp20x_rsb_of_match), | |
73 | }, | |
74 | .probe = axp20x_rsb_probe, | |
75 | .remove = axp20x_rsb_remove, | |
76 | }; | |
77 | module_sunxi_rsb_driver(axp20x_rsb_driver); | |
78 | ||
79 | MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X"); | |
80 | MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>"); | |
81 | MODULE_LICENSE("GPL v2"); |