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From: Jianqun Xu <jay.xu@rock-chips.com>
To: lgirdwood@gmail.com, broonie@kernel.org, ulf.hansson@linaro.org,
	lee.jones@linaro.org, zhangchangzhong@huawei.com,
	heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Jianqun Xu <jay.xu@rock-chips.com>
Subject: [PATCH 2/4] regulator: core: notify regulator enable with the voltage value
Date: Mon, 16 Aug 2021 11:20:01 +0800	[thread overview]
Message-ID: <20210816032003.1162779-3-jay.xu@rock-chips.com> (raw)
In-Reply-To: <20210816032003.1162779-1-jay.xu@rock-chips.com>

Get the voltage of regulator and then pass it as the parameter of
notify, the driver could take it.

The origin parameter for notify is NULL, so this patch do nothing effect
to other driver who not care about the voltage value.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 drivers/regulator/core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f192bf19492e..a53f1644a6f4 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2658,8 +2658,12 @@ static int _regulator_enable(struct regulator *regulator)
 			if (ret < 0)
 				goto err_consumer_disable;
 
+			ret = _regulator_get_voltage(rdev);
+			if (ret < 0)
+				ret = 0;
+
 			_notifier_call_chain(rdev, REGULATOR_EVENT_ENABLE,
-					     NULL);
+					     &ret);
 		} else if (ret < 0) {
 			rdev_err(rdev, "is_enabled() failed: %pe\n", ERR_PTR(ret));
 			goto err_consumer_disable;
-- 
2.25.1




  parent reply	other threads:[~2021-08-16  3:20 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-16  3:19 [PATCH 0/4] regulator pre-enable Jianqun Xu
2021-08-16  3:20 ` [PATCH 1/4] regulator: add PRE_ENABLE event define Jianqun Xu
2021-08-16  3:20 ` Jianqun Xu [this message]
2021-08-16 12:00   ` [PATCH 2/4] regulator: core: notify regulator enable with the voltage value Mark Brown
2021-08-16  3:20 ` [PATCH 3/4] regulator: core: add pre-enable event notify to regulator Jianqun Xu
2021-08-16  3:20 ` [PATCH 4/4] soc: rockchip: io-domain: do more thing about regulator notify Jianqun Xu
2021-08-16 12:39   ` Ulf Hansson

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