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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Anson Huang <Anson.Huang@nxp.com>,
        Mark Brown <broonie@kernel.org>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 4.14 126/246] regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops
Date:   Wed,  1 Aug 2018 18:50:36 +0200
Message-Id: <20180801165017.757360773@linuxfoundation.org>
In-Reply-To: <20180801165011.700991984@linuxfoundation.org>
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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anson Huang <Anson.Huang@nxp.com>

[ Upstream commit 0b01fd3d40fe6402e5fa3b491ef23109feb1aaa5 ]

If is_enabled() is not defined, regulator core will assume
this regulator is already enabled, then it can NOT be really
enabled after disabled.

Based on Li Jun's patch from the NXP kernel tree.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/regulator/pfuze100-regulator.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -158,6 +158,7 @@ static const struct regulator_ops pfuze1
 static const struct regulator_ops pfuze100_swb_regulator_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
 	.list_voltage = regulator_list_voltage_table,
 	.map_voltage = regulator_map_voltage_ascend,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,