linux-kernel - [PATCH 2/2] regulator: act8945a: get rid of redundant structure

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Date:   Mon,  5 Jun 2023 16:18:30 +0530
From:   Raag Jadav <raagjadav@...il.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Raag Jadav <raagjadav@...il.com>
Subject: [PATCH 2/2] regulator: act8945a: get rid of redundant structure

Remove struct act8945a_pmic, as we no longer need drvdata.

Signed-off-by: Raag Jadav <raagjadav@...il.com>
---
 drivers/regulator/act8945a-regulator.c | 29 ++++++++------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/act8945a-regulator.c b/drivers/regulator/act8945a-regulator.c
index bd54d76efcbc..73504253acc9 100644
--- a/drivers/regulator/act8945a-regulator.c
+++ b/drivers/regulator/act8945a-regulator.c
@@ -67,10 +67,6 @@ enum {
 	ACT8945A_ID_LDO4,
 };
 
-struct act8945a_pmic {
-	struct regmap *regmap;
-};
-
 static const struct linear_range act8945a_voltage_ranges[] = {
 	REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
 	REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
@@ -301,17 +297,13 @@ static int act8945a_pmic_probe(struct platform_device *pdev)
 {
 	struct regulator_config config = { };
 	const struct regulator_desc *regulators;
-	struct act8945a_pmic *act8945a;
 	struct regulator_dev *rdev;
+	struct regmap *regmap;
 	int i, num_regulators;
 	bool voltage_select;
 
-	act8945a = devm_kzalloc(&pdev->dev, sizeof(*act8945a), GFP_KERNEL);
-	if (!act8945a)
-		return -ENOMEM;
-
-	act8945a->regmap = dev_get_regmap(pdev->dev.parent, NULL);
-	if (!act8945a->regmap) {
+	regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!regmap) {
 		dev_err(&pdev->dev,
 			"could not retrieve regmap from parent device\n");
 		return -EINVAL;
@@ -330,7 +322,6 @@ static int act8945a_pmic_probe(struct platform_device *pdev)
 
 	config.dev = &pdev->dev;
 	config.dev->of_node = pdev->dev.parent->of_node;
-	config.driver_data = act8945a;
 	for (i = 0; i < num_regulators; i++) {
 		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
 					       &config);
@@ -342,33 +333,31 @@ static int act8945a_pmic_probe(struct platform_device *pdev)
 		}
 	}
 
-	platform_set_drvdata(pdev, act8945a);
-
 	/* Unlock expert registers. */
-	return regmap_write(act8945a->regmap, ACT8945A_SYS_UNLK_REGS, 0xef);
+	return regmap_write(regmap, ACT8945A_SYS_UNLK_REGS, 0xef);
 }
 
-static int __maybe_unused act8945a_suspend(struct device *pdev)
+static int __maybe_unused act8945a_suspend(struct device *dev)
 {
-	struct act8945a_pmic *act8945a = dev_get_drvdata(pdev);
+	struct regmap *regmap = dev_get_regmap(dev->parent, NULL);
 
 	/*
 	 * Ask the PMIC to enter the suspend mode on the next PWRHLD
 	 * transition.
 	 */
-	return regmap_write(act8945a->regmap, ACT8945A_SYS_CTRL, 0x42);
+	return regmap_write(regmap, ACT8945A_SYS_CTRL, 0x42);
 }
 
 static SIMPLE_DEV_PM_OPS(act8945a_pm, act8945a_suspend, NULL);
 
 static void act8945a_pmic_shutdown(struct platform_device *pdev)
 {
-	struct act8945a_pmic *act8945a = platform_get_drvdata(pdev);
+	struct regmap *regmap = dev_get_regmap(pdev->dev.parent, NULL);
 
 	/*
 	 * Ask the PMIC to shutdown everything on the next PWRHLD transition.
 	 */
-	regmap_write(act8945a->regmap, ACT8945A_SYS_CTRL, 0x0);
+	regmap_write(regmap, ACT8945A_SYS_CTRL, 0x0);
 }
 
 static struct platform_driver act8945a_pmic_driver = {
-- 
2.25.1