ARM: at91/gpio: add .to_irq gpio_chip handler
Replace the gpio_to_irq() macro by a plain gpiolib .to_irq() handler.
This call is using the irqdomain to translate hardware to Linux
IRQ numbers.
The irq_to_gpio() macro is completely removed.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index 0dc3f5e..e8f5831 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -11,6 +11,7 @@
#include <linux/clk.h>
#include <linux/errno.h>
+#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@@ -48,6 +49,7 @@
unsigned offset, int val);
static int at91_gpiolib_direction_input(struct gpio_chip *chip,
unsigned offset);
+static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset);
#define AT91_GPIO_CHIP(name, base_gpio, nr_gpio) \
{ \
@@ -59,6 +61,7 @@
.set = at91_gpiolib_set, \
.dbg_show = at91_gpiolib_dbg_show, \
.base = base_gpio, \
+ .to_irq = at91_gpiolib_to_irq, \
.ngpio = nr_gpio, \
}, \
}
@@ -640,6 +643,16 @@
}
}
+static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ int virq = irq_find_mapping(at91_gpio->domain, offset);
+
+ dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n",
+ chip->label, offset + chip->base, virq);
+ return virq;
+}
+
static int __init at91_gpio_setup_clk(int idx)
{
struct at91_gpio_chip *at91_gpio = &gpio_chip[idx];