linux-kernel - [PATCH v2 1/2] pinctrl: intel: Export intel_gpio_add_pin

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Message-ID: <20251118123444.1217863-2-andriy.shevchenko@linux.intel.com>
Date: Tue, 18 Nov 2025 13:34:01 +0100
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Andy Shevchenko <andy@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v2 1/2] pinctrl: intel: Export intel_gpio_add_pin_ranges()

Export intel_gpio_add_pin_ranges() for reuse in other drivers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 12 +++++++++++-
 drivers/pinctrl/intel/pinctrl-intel.h |  2 ++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 8e067aaf3399..10e8f82e4543 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -1345,7 +1345,16 @@ static int intel_gpio_irq_init_hw(struct gpio_chip *gc)
 	return 0;
 }
 
-static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
+/**
+ * intel_gpio_add_pin_ranges - add GPIO pin ranges for all groups in all communities
+ * @gc: GPIO chip structure
+ *
+ * This function iterates over all communities and all groups and adds the respective
+ * GPIO pin ranges, so the GPIO library will correctly map a GPIO offset to a pin number.
+ *
+ * Return: 0, or negative error code if range can't be added.
+ */
+int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
 {
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
 	const struct intel_community *community;
@@ -1362,6 +1371,7 @@ static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(intel_gpio_add_pin_ranges, "PINCTRL_INTEL");
 
 static unsigned int intel_gpio_ngpio(const struct intel_pinctrl *pctrl)
 {
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index 654af5977603..c1520797f895 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -276,6 +276,8 @@ extern const struct dev_pm_ops intel_pinctrl_pm_ops;
 const struct intel_community *intel_get_community(const struct intel_pinctrl *pctrl,
 						  unsigned int pin);
 
+int intel_gpio_add_pin_ranges(struct gpio_chip *gc);
+
 int intel_get_groups_count(struct pinctrl_dev *pctldev);
 const char *intel_get_group_name(struct pinctrl_dev *pctldev, unsigned int group);
 int intel_get_group_pins(struct pinctrl_dev *pctldev, unsigned int group,
-- 
2.50.1