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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: andy-shev

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>
@@ -225,14 +225,12 @@ 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 {
@@ -483,18 +481,10 @@ static int lm3533_device_init(struct lm3533 *lm3533)
 		return -EINVAL;
 	}
 
-	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);
 

include/linux/mfd/lm3533.h

@@ -16,14 +16,15 @@
 	DEVICE_ATTR(_name, S_IRUGO | S_IWUSR , show_##_name, store_##_name)
 
 struct device;
+struct gpio_desc;
 struct regmap;
 
 struct lm3533 {
 	struct device *dev;
 
 	struct regmap *regmap;
 
-	int gpio_hwen;
+	struct gpio_desc *hwen;
 	int irq;
 
 	unsigned have_als:1;
@@ -69,8 +70,6 @@ enum lm3533_boost_ovp {
 };
 
 struct lm3533_platform_data {
-	int gpio_hwen;
-
 	enum lm3533_boost_ovp boost_ovp;
 	enum lm3533_boost_freq boost_freq;