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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Broadcom BCM590xx PMU
4 *
5 * Copyright 2014 Linaro Limited
6 * Author: Matt Porter <mporter@linaro.org>
7 */
8
9#include <linux/err.h>
10#include <linux/i2c.h>
11#include <linux/init.h>
12#include <linux/mfd/bcm590xx.h>
13#include <linux/mfd/core.h>
14#include <linux/module.h>
15#include <linux/moduleparam.h>
16#include <linux/of.h>
17#include <linux/regmap.h>
18#include <linux/slab.h>
19
20static const struct mfd_cell bcm590xx_devs[] = {
21 {
22 .name = "bcm590xx-vregs",
23 },
24};
25
26static const struct regmap_config bcm590xx_regmap_config_pri = {
27 .reg_bits = 8,
28 .val_bits = 8,
29 .max_register = BCM590XX_MAX_REGISTER_PRI,
30 .cache_type = REGCACHE_RBTREE,
31};
32
33static const struct regmap_config bcm590xx_regmap_config_sec = {
34 .reg_bits = 8,
35 .val_bits = 8,
36 .max_register = BCM590XX_MAX_REGISTER_SEC,
37 .cache_type = REGCACHE_RBTREE,
38};
39
40static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri)
41{
42 struct bcm590xx *bcm590xx;
43 int ret;
44
45 bcm590xx = devm_kzalloc(&i2c_pri->dev, sizeof(*bcm590xx), GFP_KERNEL);
46 if (!bcm590xx)
47 return -ENOMEM;
48
49 i2c_set_clientdata(i2c_pri, bcm590xx);
50 bcm590xx->dev = &i2c_pri->dev;
51 bcm590xx->i2c_pri = i2c_pri;
52
53 bcm590xx->regmap_pri = devm_regmap_init_i2c(i2c_pri,
54 &bcm590xx_regmap_config_pri);
55 if (IS_ERR(bcm590xx->regmap_pri)) {
56 ret = PTR_ERR(bcm590xx->regmap_pri);
57 dev_err(&i2c_pri->dev, "primary regmap init failed: %d\n", ret);
58 return ret;
59 }
60
61 /* Secondary I2C slave address is the base address with A(2) asserted */
62 bcm590xx->i2c_sec = i2c_new_dummy_device(i2c_pri->adapter,
63 i2c_pri->addr | BIT(2));
64 if (IS_ERR(bcm590xx->i2c_sec)) {
65 dev_err(&i2c_pri->dev, "failed to add secondary I2C device\n");
66 return PTR_ERR(bcm590xx->i2c_sec);
67 }
68 i2c_set_clientdata(bcm590xx->i2c_sec, bcm590xx);
69
70 bcm590xx->regmap_sec = devm_regmap_init_i2c(bcm590xx->i2c_sec,
71 &bcm590xx_regmap_config_sec);
72 if (IS_ERR(bcm590xx->regmap_sec)) {
73 ret = PTR_ERR(bcm590xx->regmap_sec);
74 dev_err(&bcm590xx->i2c_sec->dev,
75 "secondary regmap init failed: %d\n", ret);
76 goto err;
77 }
78
79 ret = devm_mfd_add_devices(&i2c_pri->dev, -1, bcm590xx_devs,
80 ARRAY_SIZE(bcm590xx_devs), NULL, 0, NULL);
81 if (ret < 0) {
82 dev_err(&i2c_pri->dev, "failed to add sub-devices: %d\n", ret);
83 goto err;
84 }
85
86 return 0;
87
88err:
89 i2c_unregister_device(bcm590xx->i2c_sec);
90 return ret;
91}
92
93static const struct of_device_id bcm590xx_of_match[] = {
94 { .compatible = "brcm,bcm59056" },
95 { }
96};
97MODULE_DEVICE_TABLE(of, bcm590xx_of_match);
98
99static const struct i2c_device_id bcm590xx_i2c_id[] = {
100 { "bcm59056" },
101 { }
102};
103MODULE_DEVICE_TABLE(i2c, bcm590xx_i2c_id);
104
105static struct i2c_driver bcm590xx_i2c_driver = {
106 .driver = {
107 .name = "bcm590xx",
108 .of_match_table = bcm590xx_of_match,
109 },
110 .probe = bcm590xx_i2c_probe,
111 .id_table = bcm590xx_i2c_id,
112};
113module_i2c_driver(bcm590xx_i2c_driver);
114
115MODULE_AUTHOR("Matt Porter <mporter@linaro.org>");
116MODULE_DESCRIPTION("BCM590xx multi-function driver");
117MODULE_LICENSE("GPL v2");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Broadcom BCM590xx PMU
4 *
5 * Copyright 2014 Linaro Limited
6 * Author: Matt Porter <mporter@linaro.org>
7 */
8
9#include <linux/err.h>
10#include <linux/i2c.h>
11#include <linux/init.h>
12#include <linux/mfd/bcm590xx.h>
13#include <linux/mfd/core.h>
14#include <linux/module.h>
15#include <linux/moduleparam.h>
16#include <linux/of.h>
17#include <linux/of_device.h>
18#include <linux/regmap.h>
19#include <linux/slab.h>
20
21static const struct mfd_cell bcm590xx_devs[] = {
22 {
23 .name = "bcm590xx-vregs",
24 },
25};
26
27static const struct regmap_config bcm590xx_regmap_config_pri = {
28 .reg_bits = 8,
29 .val_bits = 8,
30 .max_register = BCM590XX_MAX_REGISTER_PRI,
31 .cache_type = REGCACHE_RBTREE,
32};
33
34static const struct regmap_config bcm590xx_regmap_config_sec = {
35 .reg_bits = 8,
36 .val_bits = 8,
37 .max_register = BCM590XX_MAX_REGISTER_SEC,
38 .cache_type = REGCACHE_RBTREE,
39};
40
41static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri,
42 const struct i2c_device_id *id)
43{
44 struct bcm590xx *bcm590xx;
45 int ret;
46
47 bcm590xx = devm_kzalloc(&i2c_pri->dev, sizeof(*bcm590xx), GFP_KERNEL);
48 if (!bcm590xx)
49 return -ENOMEM;
50
51 i2c_set_clientdata(i2c_pri, bcm590xx);
52 bcm590xx->dev = &i2c_pri->dev;
53 bcm590xx->i2c_pri = i2c_pri;
54
55 bcm590xx->regmap_pri = devm_regmap_init_i2c(i2c_pri,
56 &bcm590xx_regmap_config_pri);
57 if (IS_ERR(bcm590xx->regmap_pri)) {
58 ret = PTR_ERR(bcm590xx->regmap_pri);
59 dev_err(&i2c_pri->dev, "primary regmap init failed: %d\n", ret);
60 return ret;
61 }
62
63 /* Secondary I2C slave address is the base address with A(2) asserted */
64 bcm590xx->i2c_sec = i2c_new_dummy_device(i2c_pri->adapter,
65 i2c_pri->addr | BIT(2));
66 if (IS_ERR(bcm590xx->i2c_sec)) {
67 dev_err(&i2c_pri->dev, "failed to add secondary I2C device\n");
68 return PTR_ERR(bcm590xx->i2c_sec);
69 }
70 i2c_set_clientdata(bcm590xx->i2c_sec, bcm590xx);
71
72 bcm590xx->regmap_sec = devm_regmap_init_i2c(bcm590xx->i2c_sec,
73 &bcm590xx_regmap_config_sec);
74 if (IS_ERR(bcm590xx->regmap_sec)) {
75 ret = PTR_ERR(bcm590xx->regmap_sec);
76 dev_err(&bcm590xx->i2c_sec->dev,
77 "secondary regmap init failed: %d\n", ret);
78 goto err;
79 }
80
81 ret = devm_mfd_add_devices(&i2c_pri->dev, -1, bcm590xx_devs,
82 ARRAY_SIZE(bcm590xx_devs), NULL, 0, NULL);
83 if (ret < 0) {
84 dev_err(&i2c_pri->dev, "failed to add sub-devices: %d\n", ret);
85 goto err;
86 }
87
88 return 0;
89
90err:
91 i2c_unregister_device(bcm590xx->i2c_sec);
92 return ret;
93}
94
95static const struct of_device_id bcm590xx_of_match[] = {
96 { .compatible = "brcm,bcm59056" },
97 { }
98};
99MODULE_DEVICE_TABLE(of, bcm590xx_of_match);
100
101static const struct i2c_device_id bcm590xx_i2c_id[] = {
102 { "bcm59056" },
103 { }
104};
105MODULE_DEVICE_TABLE(i2c, bcm590xx_i2c_id);
106
107static struct i2c_driver bcm590xx_i2c_driver = {
108 .driver = {
109 .name = "bcm590xx",
110 .of_match_table = of_match_ptr(bcm590xx_of_match),
111 },
112 .probe = bcm590xx_i2c_probe,
113 .id_table = bcm590xx_i2c_id,
114};
115module_i2c_driver(bcm590xx_i2c_driver);
116
117MODULE_AUTHOR("Matt Porter <mporter@linaro.org>");
118MODULE_DESCRIPTION("BCM590xx multi-function driver");
119MODULE_LICENSE("GPL v2");