The device tree provides information about which regulators should be
on at boot, or always on. Use this to set them up automatically.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v3: None
Changes in v2: None
drivers/power/regulator/regulator-uclass.c | 22 ++++++++++++++++++++++
include/power/regulator.h | 11 +++++++++++
2 files changed, 33 insertions(+)
diff --git a/drivers/power/regulator/regulator-uclass.c
b/drivers/power/regulator/regulator-uclass.c
index 687d3b1..a2d0b9f 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -306,6 +306,28 @@ static int regulator_pre_probe(struct udevice *dev)
return 0;
}
+int regulators_enable_boot_on(bool verbose)
+{
+ struct udevice *dev;
+ struct uclass *uc;
+ int ret;
+
+ ret = uclass_get(UCLASS_REGULATOR, &uc);
+ if (ret)
+ return ret;
+ for (uclass_first_device(UCLASS_REGULATOR, &dev);
+ dev && !ret;
+ uclass_next_device(&dev)) {
+ ret = regulator_autoset(dev);
+ if (ret == -EMEDIUMTYPE)
+ continue;
+ if (verbose)
+ regulator_show(dev, ret);
+ }
+
+ return ret;
+}
+
UCLASS_DRIVER(regulator) = {
.id = UCLASS_REGULATOR,
.name = "regulator",
diff --git a/include/power/regulator.h b/include/power/regulator.h
index 86e9c3b..0bdb496 100644
--- a/include/power/regulator.h
+++ b/include/power/regulator.h
@@ -316,6 +316,17 @@ int regulator_get_mode(struct udevice *dev);
int regulator_set_mode(struct udevice *dev, int mode_id);
/**
+ * regulators_enable_boot_on() - enable regulators needed for boot
+ *
+ * This enables all regulators which are marked to be on at boot time. This
+ * only works for regulators which don't have a range for voltage/current,
+ * since in that case it is not possible to know which value to use.
+ *
+ * This effectively caslls regulator_autoset() for every regulator.
+ */
+int regulators_enable_boot_on(bool verbose);
+
+/**
* regulator_autoset: setup the the voltage/current on a regulator
*
* The setup depends on constraints found in device's uclass's platform data
--
2.4.3.573.g4eafbef
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