linux-kernel - [PATCH v2 5/5] regulator: pca9450: Enable DVS control via PMIC_STBY

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Message-ID: <20220429072211.24957-5-rickaran@axis.com>
Date:   Fri, 29 Apr 2022 09:22:11 +0200
From:   Rickard Andersson <rickaran@...s.com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <rickaran@...s.com>, <rickard314.andersson@...il.com>,
        <perdo@...s.com>
Subject: [PATCH v2 5/5] regulator: pca9450: Enable DVS control via PMIC_STBY_REQ

From: Rickard x Andersson <rickaran@...s.com>

When DVS is enabled via the devicetree properties
"nxp,dvs-run-voltage" and "nxp,dvs-standby-voltage" then
also the bit that enables DVS control via PMIC_STBY_REQ pin
should be set.

Signed-off-by: Rickard x Andersson <rickaran@...s.com>
---
 drivers/regulator/pca9450-regulator.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/regulator/pca9450-regulator.c b/drivers/regulator/pca9450-regulator.c
index 4a3ae73c600c..14b7d3376516 100644
--- a/drivers/regulator/pca9450-regulator.c
+++ b/drivers/regulator/pca9450-regulator.c
@@ -174,6 +174,14 @@ static int buck_set_dvs(const struct regulator_desc *desc,
 		}
 	}
 
+	if (ret == 0) {
+		struct pca9450_regulator_desc *regulator = container_of(desc,
+					struct pca9450_regulator_desc, desc);
+
+		/* Enable DVS control through PMIC_STBY_REQ for this BUCK */
+		ret = regmap_update_bits(regmap, regulator->desc.enable_reg,
+					 BUCK1_DVS_CTRL, BUCK1_DVS_CTRL);
+	}
 	return ret;
 }
 
-- 
2.20.1