Commit | Line | Data |
---|---|---|
613330a0 | 1 | #include <linux/slab.h> |
dfad84ae | 2 | #include <linux/string.h> |
613330a0 SH |
3 | #include <linux/platform_device.h> |
4 | #include <linux/regulator/machine.h> | |
5 | #include <linux/regulator/fixed.h> | |
6 | ||
7 | struct fixed_regulator_data { | |
8 | struct fixed_voltage_config cfg; | |
9 | struct regulator_init_data init_data; | |
10 | struct platform_device pdev; | |
11 | }; | |
12 | ||
13 | static void regulator_fixed_release(struct device *dev) | |
14 | { | |
15 | struct fixed_regulator_data *data = container_of(dev, | |
16 | struct fixed_regulator_data, pdev.dev); | |
dfad84ae | 17 | kfree(data->cfg.supply_name); |
613330a0 SH |
18 | kfree(data); |
19 | } | |
20 | ||
21 | /** | |
dfad84ae | 22 | * regulator_register_fixed_name - register a no-op fixed regulator |
613330a0 | 23 | * @id: platform device id |
dfad84ae | 24 | * @name: name to be used for the regulator |
613330a0 SH |
25 | * @supplies: consumers for this regulator |
26 | * @num_supplies: number of consumers | |
27 | */ | |
dfad84ae | 28 | struct platform_device *regulator_register_always_on(int id, const char *name, |
613330a0 SH |
29 | struct regulator_consumer_supply *supplies, int num_supplies) |
30 | { | |
31 | struct fixed_regulator_data *data; | |
32 | ||
33 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
34 | if (!data) | |
35 | return NULL; | |
36 | ||
dfad84ae GL |
37 | data->cfg.supply_name = kstrdup(name, GFP_KERNEL); |
38 | if (!data->cfg.supply_name) { | |
39 | kfree(data); | |
40 | return NULL; | |
41 | } | |
42 | ||
613330a0 SH |
43 | data->cfg.microvolts = 0; |
44 | data->cfg.gpio = -EINVAL; | |
45 | data->cfg.enabled_at_boot = 1; | |
46 | data->cfg.init_data = &data->init_data; | |
47 | ||
48 | data->init_data.constraints.always_on = 1; | |
49 | data->init_data.consumer_supplies = supplies; | |
50 | data->init_data.num_consumer_supplies = num_supplies; | |
51 | ||
52 | data->pdev.name = "reg-fixed-voltage"; | |
53 | data->pdev.id = id; | |
54 | data->pdev.dev.platform_data = &data->cfg; | |
55 | data->pdev.dev.release = regulator_fixed_release; | |
56 | ||
57 | platform_device_register(&data->pdev); | |
58 | ||
59 | return &data->pdev; | |
60 | } |