2  * userspace-consumer.c
24 #include <linux/regulator/userspace-consumer.h>
31 	bool enabled;  member
42 	return sprintf(buf, "%s\n", data->name);  in reg_show_name()
50 	if (data->enabled)  in reg_show_state()
51 		return sprintf(buf, "enabled\n");  in reg_show_state()
60 	bool enabled;  in reg_set_state()  local
64 	 * sysfs_streq() doesn't need the \n's, but we add them so the strings  in reg_set_state()
67 	if (sysfs_streq(buf, "enabled\n") || sysfs_streq(buf, "1"))  in reg_set_state()
68 		enabled = true;  in reg_set_state()
70 		enabled = false;  in reg_set_state()
76 	mutex_lock(&data->lock);  in reg_set_state()
77 	if (enabled != data->enabled) {  in reg_set_state()
78 		if (enabled)  in reg_set_state()
79 			ret = regulator_bulk_enable(data->num_supplies,  in reg_set_state()
80 						    data->supplies);  in reg_set_state()
82 			ret = regulator_bulk_disable(data->num_supplies,  in reg_set_state()
83 						     data->supplies);  in reg_set_state()
86 			data->enabled = enabled;  in reg_set_state()
90 	mutex_unlock(&data->lock);  in reg_set_state()
114 	pdata = dev_get_platdata(&pdev->dev);  in regulator_userspace_consumer_probe()
116 		return -EINVAL;  in regulator_userspace_consumer_probe()
118 	drvdata = devm_kzalloc(&pdev->dev,  in regulator_userspace_consumer_probe()
122 		return -ENOMEM;  in regulator_userspace_consumer_probe()
124 	drvdata->name = pdata->name;  in regulator_userspace_consumer_probe()
125 	drvdata->num_supplies = pdata->num_supplies;  in regulator_userspace_consumer_probe()
126 	drvdata->supplies = pdata->supplies;  in regulator_userspace_consumer_probe()
128 	mutex_init(&drvdata->lock);  in regulator_userspace_consumer_probe()
130 	ret = devm_regulator_bulk_get(&pdev->dev, drvdata->num_supplies,  in regulator_userspace_consumer_probe()
131 				      drvdata->supplies);  in regulator_userspace_consumer_probe()
133 		dev_err(&pdev->dev, "Failed to get supplies: %d\n", ret);  in regulator_userspace_consumer_probe()
137 	ret = sysfs_create_group(&pdev->dev.kobj, &attr_group);  in regulator_userspace_consumer_probe()
141 	if (pdata->init_on) {  in regulator_userspace_consumer_probe()
142 		ret = regulator_bulk_enable(drvdata->num_supplies,  in regulator_userspace_consumer_probe()
143 					    drvdata->supplies);  in regulator_userspace_consumer_probe()
145 			dev_err(&pdev->dev,  in regulator_userspace_consumer_probe()
151 	drvdata->enabled = pdata->init_on;  in regulator_userspace_consumer_probe()
157 	sysfs_remove_group(&pdev->dev.kobj, &attr_group);  in regulator_userspace_consumer_probe()
166 	sysfs_remove_group(&pdev->dev.kobj, &attr_group);  in regulator_userspace_consumer_remove()
168 	if (data->enabled)  in regulator_userspace_consumer_remove()
169 		regulator_bulk_disable(data->num_supplies, data->supplies);  in regulator_userspace_consumer_remove()
178 		.name		= "reg-userspace-consumer",