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