[PATCH v2 2/3] regulator: core: add pre-enable event notify to regulator

From: Jianqun Xu
Date: Mon Aug 16 2021 - 23:39:22 EST


Notify the event about regulator to be enabled to driver.

The IO-DOMAIN driver on Rockchip SoCs will take this event and then to
configure the io-domain mode before regualtor_enable.

Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
---
v2: none

drivers/regulator/core.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f192bf19492e..d7dacc608509 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2654,6 +2654,9 @@ static int _regulator_enable(struct regulator *regulator)
goto err_consumer_disable;
}

+ _notifier_call_chain(rdev, REGULATOR_EVENT_PRE_ENABLE,
+ NULL);
+
ret = _regulator_do_enable(rdev);
if (ret < 0)
goto err_consumer_disable;
--
2.25.1