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Commit 69612651 authored by David Collins's avatar David Collins Committed by Gerrit - the friendly Code Review server
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regulator: add notifier event for regulator enable 



Add a notifier event which is triggered when a regulator is
enabled.  This can be used by a driver which must configure the
hardware state whenever a given supply is enabled even if some
other consumer was responsible for enabling the supply.

Change-Id: Ic8363308b64953451dd01756e1bfdc2a64527096
Signed-off-by: default avatarDavid Collins <collinsd@codeaurora.org>
parent e4b5be8f

drivers/regulator/core.c

+2 −0
Original line number Diff line number Diff line
@@ -1676,6 +1676,8 @@ 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;

include/linux/regulator/consumer.h

+2 −0
Original line number Diff line number Diff line
@@ -96,6 +96,7 @@ struct notifier_block; 
 * FORCE_DISABLE  Regulator forcibly shut down by software.

 * VOLTAGE_CHANGE Regulator voltage changed.

 * DISABLE        Regulator was disabled.

 * ENABLE         Regulator was enabled.

 *

 * NOTE: These events can be OR'ed together when passed into handler.

 */
@@ -108,6 +109,7 @@ struct notifier_block; 
#define REGULATOR_EVENT_FORCE_DISABLE		0x20

#define REGULATOR_EVENT_VOLTAGE_CHANGE		0x40

#define REGULATOR_EVENT_DISABLE 		0x80

#define REGULATOR_EVENT_ENABLE			0x100



struct regulator;