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authorIngo Molnar <mingo@kernel.org>2012-03-26 19:18:44 +0400
committerIngo Molnar <mingo@kernel.org>2012-03-26 19:19:03 +0400
commit7fd52392c56361a40f0c630a82b36b95ca31eac6 (patch)
tree14091de24c6b28ea4cae9826f98aeedb7be091f5 /drivers/regulator/fixed-helper.c
parentb01c3a0010aabadf745f3e7fdb9cab682e0a28a2 (diff)
parente22057c8599373e5caef0bc42bdb95d2a361ab0d (diff)
downloadlinux-7fd52392c56361a40f0c630a82b36b95ca31eac6.tar.xz
Merge branch 'linus' into perf/urgent
Merge reason: we need to fix a non-trivial merge conflict. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/regulator/fixed-helper.c')
-rw-r--r--drivers/regulator/fixed-helper.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/regulator/fixed-helper.c b/drivers/regulator/fixed-helper.c
new file mode 100644
index 000000000000..30d0a15b8949
--- /dev/null
+++ b/drivers/regulator/fixed-helper.c
@@ -0,0 +1,53 @@
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+
+struct fixed_regulator_data {
+ struct fixed_voltage_config cfg;
+ struct regulator_init_data init_data;
+ struct platform_device pdev;
+};
+
+static void regulator_fixed_release(struct device *dev)
+{
+ struct fixed_regulator_data *data = container_of(dev,
+ struct fixed_regulator_data, pdev.dev);
+ kfree(data);
+}
+
+/**
+ * regulator_register_fixed - register a no-op fixed regulator
+ * @name: supply name
+ * @id: platform device id
+ * @supplies: consumers for this regulator
+ * @num_supplies: number of consumers
+ */
+struct platform_device *regulator_register_fixed(int id,
+ struct regulator_consumer_supply *supplies, int num_supplies)
+{
+ struct fixed_regulator_data *data;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return NULL;
+
+ data->cfg.supply_name = "dummy";
+ data->cfg.microvolts = 0;
+ data->cfg.gpio = -EINVAL;
+ data->cfg.enabled_at_boot = 1;
+ data->cfg.init_data = &data->init_data;
+
+ data->init_data.constraints.always_on = 1;
+ data->init_data.consumer_supplies = supplies;
+ data->init_data.num_consumer_supplies = num_supplies;
+
+ data->pdev.name = "reg-fixed-voltage";
+ data->pdev.id = id;
+ data->pdev.dev.platform_data = &data->cfg;
+ data->pdev.dev.release = regulator_fixed_release;
+
+ platform_device_register(&data->pdev);
+
+ return &data->pdev;
+}