1 #include <linux/slab.h> 2 #include <linux/platform_device.h> 3 #include <linux/regulator/machine.h> 4 #include <linux/regulator/fixed.h> 5 6 struct fixed_regulator_data { 7 struct fixed_voltage_config cfg; 8 struct regulator_init_data init_data; 9 struct platform_device pdev; 10 }; 11 12 static 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 * @name: supply name 22 * @id: platform device id 23 * @supplies: consumers for this regulator 24 * @num_supplies: number of consumers 25 */ 26 struct platform_device *regulator_register_fixed(int id, 27 struct regulator_consumer_supply *supplies, int num_supplies) 28 { 29 struct fixed_regulator_data *data; 30 31 data = kzalloc(sizeof(*data), GFP_KERNEL); 32 if (!data) 33 return NULL; 34 35 data->cfg.supply_name = "dummy"; 36 data->cfg.microvolts = 0; 37 data->cfg.gpio = -EINVAL; 38 data->cfg.enabled_at_boot = 1; 39 data->cfg.init_data = &data->init_data; 40 41 data->init_data.constraints.always_on = 1; 42 data->init_data.consumer_supplies = supplies; 43 data->init_data.num_consumer_supplies = num_supplies; 44 45 data->pdev.name = "reg-fixed-voltage"; 46 data->pdev.id = id; 47 data->pdev.dev.platform_data = &data->cfg; 48 data->pdev.dev.release = regulator_fixed_release; 49 50 platform_device_register(&data->pdev); 51 52 return &data->pdev; 53 } 54