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authorNicolas Ferre <nicolas.ferre@atmel.com>2012-02-11 15:56:01 +0100
committerNicolas Ferre <nicolas.ferre@atmel.com>2012-03-01 13:29:02 +0100
commitb134ce854ad63421bd5c7d34623a1337d525a435 (patch)
tree41a74511132c744a32e0fb02b4e9da5510cade3d /arch/arm/mach-at91/gpio.c
parent5bc067b71928d3f470d051847aefa55724fd0c95 (diff)
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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>
Diffstat (limited to 'arch/arm/mach-at91/gpio.c')
-rw-r--r--arch/arm/mach-at91/gpio.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index 0dc3f5ead7bb..e8f5831e573d 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 @@ static int at91_gpiolib_direction_output(struct gpio_chip *chip,
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 @@ static int at91_gpiolib_direction_input(struct gpio_chip *chip,
.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 void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
}
}
+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];