linux-kernel - [PATCH v7 11/15] gpio: Export gpiochip_irq

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Date:   Tue,  7 Nov 2017 19:15:55 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Grygorii Strashko <grygorii.strashko@...com>
Cc:     Jonathan Hunter <jonathanh@...dia.com>, linux-gpio@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v7 11/15] gpio: Export gpiochip_irq_{map,unmap}()

From: Thierry Reding <treding@...dia.com>

Export these functions so that drivers can explicitly use these when
setting up their IRQ domain.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 drivers/gpio/gpiolib.c      | 8 +++++---
 include/linux/gpio/driver.h | 4 ++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d809d9e7df0f..f4b30883eefc 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1638,8 +1638,8 @@ EXPORT_SYMBOL_GPL(gpiochip_set_nested_irqchip);
  * gpiochip by assigning the gpiochip as chip data, and using the irqchip
  * stored inside the gpiochip.
  */
-static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
-			    irq_hw_number_t hwirq)
+int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
+		     irq_hw_number_t hwirq)
 {
 	struct gpio_chip *chip = d->host_data;
 	int err = 0;
@@ -1676,8 +1676,9 @@ static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(gpiochip_irq_map);
 
-static void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
+void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
 {
 	struct gpio_chip *chip = d->host_data;
 
@@ -1686,6 +1687,7 @@ static void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
 	irq_set_chip_and_handler(irq, NULL, NULL);
 	irq_set_chip_data(irq, NULL);
 }
+EXPORT_SYMBOL_GPL(gpiochip_irq_unmap);
 
 static const struct irq_domain_ops gpiochip_domain_ops = {
 	.map	= gpiochip_irq_map,
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index fbfcff676b05..ebc1a02c989a 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -368,6 +368,10 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev,
 
 #ifdef CONFIG_GPIOLIB_IRQCHIP
 
+int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
+		     irq_hw_number_t hwirq);
+void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq);
+
 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
 		struct irq_chip *irqchip,
 		unsigned int parent_irq,
-- 
2.14.1