regulator: core: Add PRE_DISABLE notification

Add a PRE_DISABLE notification so that consumers can use a
notifier to run any steps required to prepare for the
regulator being switched off. Since the regulator disable
can fail an abort notification is also added.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d347c805f923..9efddd2a63ee 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -99,6 +99,8 @@ struct regmap;
  *                      Data passed is "struct pre_voltage_change_data"
  * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
  *                      Data passed is old voltage cast to (void *).
+ * PRE_DISABLE    Regulator is about to be disabled
+ * ABORT_DISABLE  Regulator disable failed for some reason
  *
  * NOTE: These events can be OR'ed together when passed into handler.
  */
@@ -113,6 +115,8 @@ struct regmap;
 #define REGULATOR_EVENT_DISABLE                 0x80
 #define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE      0x100
 #define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE    0x200
+#define REGULATOR_EVENT_PRE_DISABLE             0x400
+#define REGULATOR_EVENT_ABORT_DISABLE           0x800
 
 /**
  * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event