linux-kernel - [PATCH v1 2/2] mfd: lm3533: Move to new GPIO descriptor-based APIs

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Date: Wed,  8 May 2024 13:46:49 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Cc: Lee Jones <lee@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v1 2/2] mfd: lm3533: Move to new GPIO descriptor-based APIs

Legacy GPIO APIs are subject to remove. Convert the driver to new APIs.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/mfd/lm3533-core.c  | 26 +++++++-------------------
 include/linux/mfd/lm3533.h |  3 ++-
 2 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c
index 515a6c3b3244..e135142a158d 100644
--- a/drivers/mfd/lm3533-core.c
+++ b/drivers/mfd/lm3533-core.c
@@ -11,7 +11,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/mfd/core.h>
 #include <linux/regmap.h>
@@ -22,8 +22,6 @@
 #include <linux/mfd/lm3533.h>
 
 struct lm3533_platform_data {
-	int gpio_hwen;
-
 	enum lm3533_boost_ovp boost_ovp;
 	enum lm3533_boost_freq boost_freq;
 
@@ -239,14 +237,12 @@ static int lm3533_set_lvled_config(struct lm3533 *lm3533, u8 lvled, u8 led)
 
 static void lm3533_enable(struct lm3533 *lm3533)
 {
-	if (gpio_is_valid(lm3533->gpio_hwen))
-		gpio_set_value(lm3533->gpio_hwen, 1);
+	gpiod_set_value(lm3533->hwen, 1);
 }
 
 static void lm3533_disable(struct lm3533 *lm3533)
 {
-	if (gpio_is_valid(lm3533->gpio_hwen))
-		gpio_set_value(lm3533->gpio_hwen, 0);
+	gpiod_set_value(lm3533->hwen, 0);
 }
 
 enum lm3533_attribute_type {
@@ -496,18 +492,10 @@ static int lm3533_device_init(struct lm3533 *lm3533)
 	if (!pdata)
 		return -ENOMEM;
 
-	lm3533->gpio_hwen = pdata->gpio_hwen;
-
-	if (gpio_is_valid(lm3533->gpio_hwen)) {
-		ret = devm_gpio_request_one(lm3533->dev, lm3533->gpio_hwen,
-					GPIOF_OUT_INIT_LOW, "lm3533-hwen");
-		if (ret < 0) {
-			dev_err(lm3533->dev,
-				"failed to request HWEN GPIO %d\n",
-				lm3533->gpio_hwen);
-			return ret;
-		}
-	}
+	lm3533->hwen = devm_gpiod_get(lm3533->dev, NULL, GPIOD_OUT_LOW);
+	if (IS_ERR(lm3533->hwen))
+		return dev_err_probe(lm3533->dev, PTR_ERR(lm3533->hwen), "failed to request HWEN GPIO\n");
+	gpiod_set_consumer_name(lm3533->hwen, "lm3533-hwen");
 
 	lm3533_enable(lm3533);
 
diff --git a/include/linux/mfd/lm3533.h b/include/linux/mfd/lm3533.h
index ce42f0737768..d30c70c2a5f6 100644
--- a/include/linux/mfd/lm3533.h
+++ b/include/linux/mfd/lm3533.h
@@ -16,6 +16,7 @@
 	DEVICE_ATTR(_name, S_IRUGO | S_IWUSR , show_##_name, store_##_name)
 
 struct device;
+struct gpio_desc;
 struct regmap;
 
 struct lm3533 {
@@ -23,7 +24,7 @@ struct lm3533 {
 
 	struct regmap *regmap;
 
-	int gpio_hwen;
+	struct gpio_desc *hwen;
 	int irq;
 
 	unsigned have_als:1;
-- 
2.43.0.rc1.1336.g36b5255a03ac