linux-kernel - [PATCH 2/8] regulator: bd71815: Constify pointers to 'regulator

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Message-Id: <20251126-container-of-const-regulator-v1-2-eeec378144d4@oss.qualcomm.com>
Date: Wed, 26 Nov 2025 17:58:45 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Bartosz Golaszewski <brgl@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
        Samuel Kayode <samkay014@...il.com>,
        Matti Vaittinen <mazziesaccount@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, imx@...ts.linux.dev,
        Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH 2/8] regulator: bd71815: Constify pointers to
 'regulator_desc' wrap struct

Pointer to 'struct regulator_desc' is a pointer to const and the
wrapping structure (container) is not being modified, thus entire syntax
can be replaced to preferred and safer container_of_const().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
---
 drivers/regulator/bd71815-regulator.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/bd71815-regulator.c b/drivers/regulator/bd71815-regulator.c
index 79fbb45297f6..8da57a7bb2f1 100644
--- a/drivers/regulator/bd71815-regulator.c
+++ b/drivers/regulator/bd71815-regulator.c
@@ -173,9 +173,9 @@ static int set_hw_dvs_levels(struct device_node *np,
 			     const struct regulator_desc *desc,
 			     struct regulator_config *cfg)
 {
-	struct bd71815_regulator *data;
+	const struct bd71815_regulator *data;
 
-	data = container_of(desc, struct bd71815_regulator, desc);
+	data = container_of_const(desc, struct bd71815_regulator, desc);
 	return rohm_regulator_set_dvs_levels(data->dvs, np, desc, cfg->regmap);
 }
 
@@ -195,10 +195,10 @@ static int buck12_set_hw_dvs_levels(struct device_node *np,
 				    const struct regulator_desc *desc,
 				    struct regulator_config *cfg)
 {
-	struct bd71815_regulator *data;
+	const struct bd71815_regulator *data;
 	int ret = 0, val;
 
-	data = container_of(desc, struct bd71815_regulator, desc);
+	data = container_of_const(desc, struct bd71815_regulator, desc);
 
 	if (of_property_present(np, "rohm,dvs-run-voltage") ||
 	    of_property_present(np, "rohm,dvs-suspend-voltage") ||

-- 
2.48.1