[17/21] gpio: of: replace gpiochip_find_* with gpio_device_find_*

Commit Message

Bartosz Golaszewski Sept. 5, 2023, 6:53 p.m. UTC

From: Bartosz Golaszewski <[e-mail]>

We're porting all users of gpiochip_find() to using gpio_device_find().
Update the OF GPIO code.

Signed-off-by: Bartosz Golaszewski <[e-mail]>
---
 drivers/gpio/gpiolib-of.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

Comments

Linus Walleij Sept. 7, 2023, 7:37 a.m. UTC | #1

On Tue, Sep 5, 2023 at 8:53 PM Bartosz Golaszewski <[e-mail]> wrote:

> From: Bartosz Golaszewski <[e-mail]>
>
> We're porting all users of gpiochip_find() to using gpio_device_find().
> Update the OF GPIO code.
>
> Signed-off-by: Bartosz Golaszewski <[e-mail]>

Linus Walleij Sept. 7, 2023, 7:38 a.m. UTC | #2

(Sorry for fatfinger reply)

On Tue, Sep 5, 2023 at 8:53 PM Bartosz Golaszewski <[e-mail]> wrote:

> From: Bartosz Golaszewski <[e-mail]>
>
> We're porting all users of gpiochip_find() to using gpio_device_find().
> Update the OF GPIO code.
>
> Signed-off-by: Bartosz Golaszewski <[e-mail]>

Scoped guards, nice!
Reviewed-by: Linus Walleij <[e-mail]>

Yours,
Linus Walleij

Patch

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 5515f32cf19b..9b087f93e049 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -127,10 +127,10 @@  static int of_gpiochip_match_node_and_xlate(struct gpio_chip *chip, void *data)
 				chip->of_xlate(chip, gpiospec, NULL) >= 0;
 }
 
-static struct gpio_chip *of_find_gpiochip_by_xlate(
-					struct of_phandle_args *gpiospec)
+static struct gpio_device *
+of_find_gpio_device_by_xlate(struct of_phandle_args *gpiospec)
 {
-	return gpiochip_find(gpiospec, of_gpiochip_match_node_and_xlate);
+	return gpio_device_find(gpiospec, of_gpiochip_match_node_and_xlate);
 }
 
 static struct gpio_desc *of_xlate_and_get_gpiod_flags(struct gpio_chip *chip,
@@ -362,8 +362,8 @@  static void of_gpio_flags_quirks(const struct device_node *np,
 static struct gpio_desc *of_get_named_gpiod_flags(const struct device_node *np,
 		     const char *propname, int index, enum of_gpio_flags *flags)
 {
+	struct gpio_device *gdev __free(gpio_device_put) = NULL;
 	struct of_phandle_args gpiospec;
-	struct gpio_chip *chip;
 	struct gpio_desc *desc;
 	int ret;
 
@@ -375,13 +375,13 @@  static struct gpio_desc *of_get_named_gpiod_flags(const struct device_node *np,
 		return ERR_PTR(ret);
 	}
 
-	chip = of_find_gpiochip_by_xlate(&gpiospec);
-	if (!chip) {
+	gdev = of_find_gpio_device_by_xlate(&gpiospec);
+	if (!gdev) {
 		desc = ERR_PTR(-EPROBE_DEFER);
 		goto out;
 	}
 
-	desc = of_xlate_and_get_gpiod_flags(chip, &gpiospec, flags);
+	desc = of_xlate_and_get_gpiod_flags(gdev->chip, &gpiospec, flags);
 	if (IS_ERR(desc))
 		goto out;
 
@@ -813,16 +813,16 @@  static int of_gpiochip_match_node(struct gpio_chip *chip, void *data)
 	return device_match_of_node(&chip->gpiodev->dev, data);
 }
 
-static struct gpio_chip *of_find_gpiochip_by_node(struct device_node *np)
+static struct gpio_device *of_find_gpio_device_by_node(struct device_node *np)
 {
-	return gpiochip_find(np, of_gpiochip_match_node);
+	return gpio_device_find(np, of_gpiochip_match_node);
 }
 
 static int of_gpio_notify(struct notifier_block *nb, unsigned long action,
 			  void *arg)
 {
+	struct gpio_device *gdev __free(gpio_device_put) = NULL;
 	struct of_reconfig_data *rd = arg;
-	struct gpio_chip *chip;
 	int ret;
 
 	/*
@@ -839,11 +839,11 @@  static int of_gpio_notify(struct notifier_block *nb, unsigned long action,
 		if (of_node_test_and_set_flag(rd->dn, OF_POPULATED))
 			return NOTIFY_DONE;
 
-		chip = of_find_gpiochip_by_node(rd->dn->parent);
-		if (chip == NULL)
+		gdev = of_find_gpio_device_by_node(rd->dn->parent);
+		if (!gdev)
 			return NOTIFY_DONE;	/* not for us */
 
-		ret = of_gpiochip_add_hog(chip, rd->dn);
+		ret = of_gpiochip_add_hog(gdev->chip, rd->dn);
 		if (ret < 0) {
 			pr_err("%s: failed to add hogs for %pOF\n", __func__,
 			       rd->dn);
@@ -856,11 +856,11 @@  static int of_gpio_notify(struct notifier_block *nb, unsigned long action,
 		if (!of_node_check_flag(rd->dn, OF_POPULATED))
 			return NOTIFY_DONE;	/* already depopulated */
 
-		chip = of_find_gpiochip_by_node(rd->dn->parent);
-		if (chip == NULL)
+		gdev = of_find_gpio_device_by_node(rd->dn->parent);
+		if (!gdev)
 			return NOTIFY_DONE;	/* not for us */
 
-		of_gpiochip_remove_hog(chip, rd->dn);
+		of_gpiochip_remove_hog(gdev->chip, rd->dn);
 		of_node_clear_flag(rd->dn, OF_POPULATED);
 		return NOTIFY_OK;
 	}