linux-kernel - [PATCH v2 44/62] pinctrl: change the signature of pinctrl_match_gpio

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Date:   Wed, 11 Oct 2023 14:08:12 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v2 44/62] pinctrl: change the signature of pinctrl_match_gpio_range()

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Modify pinctrl_match_gpio_range() to be in line with public GPIO
helpers and take a pair of GPIO chip & offset as arguments.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/pinctrl/core.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 2eebd86ca2bc..dbc59e409439 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -292,13 +292,15 @@ static inline int gpio_to_pin(struct pinctrl_gpio_range *range,
 /**
  * pinctrl_match_gpio_range() - check if a certain GPIO pin is in range
  * @pctldev: pin controller device to check
- * @gpio: gpio pin to check taken from the global GPIO pin space
+ * @gc: GPIO chip structure from the GPIO subsystem
+ * @offset: hardware offset of the GPIO relative to the controller
  *
  * Tries to match a GPIO pin number to the ranges handled by a certain pin
  * controller, return the range or NULL
  */
 static struct pinctrl_gpio_range *
-pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, unsigned gpio)
+pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, struct gpio_chip *gc,
+			 unsigned int offset)
 {
 	struct pinctrl_gpio_range *range;
 
@@ -306,8 +308,8 @@ pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, unsigned gpio)
 	/* Loop over the ranges */
 	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
 		/* Check if we're in the valid range */
-		if (gpio >= range->base &&
-		    gpio < range->base + range->npins) {
+		if ((gc->base + offset) >= range->base &&
+		    (gc->base + offset) < range->base + range->npins) {
 			mutex_unlock(&pctldev->mutex);
 			return range;
 		}
@@ -395,7 +397,7 @@ static int pinctrl_get_device_gpio_range(struct gpio_chip *gc,
 	list_for_each_entry(pctldev, &pinctrldev_list, node) {
 		struct pinctrl_gpio_range *range;
 
-		range = pinctrl_match_gpio_range(pctldev, gc->base + offset);
+		range = pinctrl_match_gpio_range(pctldev, gc, offset);
 		if (range) {
 			*outdev = pctldev;
 			*outrange = range;
-- 
2.39.2