This is useful for devices, which need some time to start up, to help
the drivers track how long the supply has been up already. Ie whether
it can safely talk to the HW or needs to wait.
Signed-off-by: Harald Geyer <harald@xxxxxxxxx>
---
If this change gets accepted soon, it can go in via the regulator tree
and everything will be in place for patch 2/2 to go in via iio when I'm
done with longterm tests.
drivers/regulator/core.c | 2 ++
include/linux/regulator/consumer.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 04baac9..6b9bb1b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2162,6 +2162,8 @@ static int _regulator_enable(struct regulator_dev *rdev)
if (ret < 0)
return ret;
+ _notifier_call_chain(rdev, REGULATOR_EVENT_ENABLE,
+ NULL);
} else if (ret < 0) {
rdev_err(rdev, "is_enabled() failed: %d\n", ret);
return ret;
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index ea0fffa..df176d7 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -119,6 +119,7 @@ struct regmap;
#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200
#define REGULATOR_EVENT_PRE_DISABLE 0x400
#define REGULATOR_EVENT_ABORT_DISABLE 0x800
+#define REGULATOR_EVENT_ENABLE 0x1000
/*
* Regulator errors that can be queried using regulator_get_error_flags
--
2.1.4
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