linux-kernel - [PATCH] pinctrl: cirrus: madera-core: Use devm_pinctrl_register

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Message-Id: <20250609-pinctrl-madera-devm-pinctrl-register-mappings-v1-1-ba2c2822cf6c@bootlin.com>
Date: Mon, 09 Jun 2025 13:51:15 +0200
From: Thomas Richard <thomas.richard@...tlin.com>
To: Charles Keepax <ckeepax@...nsource.cirrus.com>, 
 Richard Fitzgerald <rf@...nsource.cirrus.com>, 
 Linus Walleij <linus.walleij@...aro.org>, Lee Jones <lee@...nel.org>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 linux-sound@...r.kernel.org, patches@...nsource.cirrus.com, 
 linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Thomas Richard <thomas.richard@...tlin.com>
Subject: [PATCH] pinctrl: cirrus: madera-core: Use
 devm_pinctrl_register_mappings()

Use devm_pinctrl_register_mappings(), so the mappings are automatically
unregistered by the core. If pinctrl_enable() failed during the probe,
pinctrl_mappings were not freed. Now it is done by the core.

Fixes: 218d72a77b0b ("pinctrl: madera: Add driver for Cirrus Logic Madera codecs")
Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>
---
Compile tested only.
---
 drivers/pinctrl/cirrus/pinctrl-madera-core.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
index 73ec5b9beb49..d19ef13224cc 100644
--- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c
+++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
@@ -1061,8 +1061,9 @@ static int madera_pin_probe(struct platform_device *pdev)
 
 	/* if the configuration is provided through pdata, apply it */
 	if (pdata->gpio_configs) {
-		ret = pinctrl_register_mappings(pdata->gpio_configs,
-						pdata->n_gpio_configs);
+		ret = devm_pinctrl_register_mappings(priv->dev,
+						     pdata->gpio_configs,
+						     pdata->n_gpio_configs);
 		if (ret)
 			return dev_err_probe(priv->dev, ret,
 						"Failed to register pdata mappings\n");
@@ -1081,17 +1082,8 @@ static int madera_pin_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static void madera_pin_remove(struct platform_device *pdev)
-{
-	struct madera_pin_private *priv = platform_get_drvdata(pdev);
-
-	if (priv->madera->pdata.gpio_configs)
-		pinctrl_unregister_mappings(priv->madera->pdata.gpio_configs);
-}
-
 static struct platform_driver madera_pin_driver = {
 	.probe = madera_pin_probe,
-	.remove = madera_pin_remove,
 	.driver = {
 		.name = "madera-pinctrl",
 	},

---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250609-pinctrl-madera-devm-pinctrl-register-mappings-a60a0bcb9154

Best regards,
-- 
Thomas Richard <thomas.richard@...tlin.com>