diff mbox

[03/10] gpio: pxa: avoid to use global irq base

Message ID 1358929554-32265-4-git-send-email-haojian.zhuang@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Haojian Zhuang Jan. 23, 2013, 8:25 a.m. UTC
Avoid to use global irq_base in gpio-pxa driver. Define irq_base in each
pxa_gpio_chip instead. Then we can avoid to use macro PXA_GPIO_TO_IRQ() &
MMP_GPIO_TO_IRQ().

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 arch/arm/mach-pxa/pxa25x.c |    2 +-
 arch/arm/mach-pxa/pxa27x.c |    2 +-
 drivers/gpio/gpio-pxa.c    |  142 ++++++++++++++++++++++----------------------
 include/linux/gpio-pxa.h   |    4 +-
 4 files changed, 77 insertions(+), 73 deletions(-)

Comments

Igor Grinberg Jan. 28, 2013, 11:07 a.m. UTC | #1
On 01/23/13 10:25, Haojian Zhuang wrote:
> Avoid to use global irq_base in gpio-pxa driver. Define irq_base in each
> pxa_gpio_chip instead. Then we can avoid to use macro PXA_GPIO_TO_IRQ() &
> MMP_GPIO_TO_IRQ().
> 
> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
> ---
>  arch/arm/mach-pxa/pxa25x.c |    2 +-
>  arch/arm/mach-pxa/pxa27x.c |    2 +-
>  drivers/gpio/gpio-pxa.c    |  142 ++++++++++++++++++++++----------------------
>  include/linux/gpio-pxa.h   |    4 +-
>  4 files changed, 77 insertions(+), 73 deletions(-)

[...]

> diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
> index 8e66c6b..da6e7fd 100644
> --- a/drivers/gpio/gpio-pxa.c
> +++ b/drivers/gpio/gpio-pxa.c

[...]

> @@ -485,7 +452,7 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
>  	return 0;
>  }
>  
> -const struct irq_domain_ops pxa_irq_domain_ops = {
> +static const struct irq_domain_ops pxa_irq_domain_ops = {
>  	.map	= pxa_irq_domain_map,
>  	.xlate	= irq_domain_xlate_twocell,
>  };

You should also move this out of CONFIG_OF as I don't think it is a dependency,
and also otherwise you get the below...

> @@ -529,14 +496,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
>  	nr_gpios = nr_banks << 5;
>  	pxa_last_gpio = nr_gpios - 1;
>  
> -	irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
> -	if (irq_base < 0) {
> -		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
> -		goto err;
> -	}
> -	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
> -				       &pxa_irq_domain_ops, NULL);
> -	pxa_gpio_of_node = np;
>  	return 0;
>  err:
>  	iounmap(gpio_reg_base);
> @@ -546,6 +505,56 @@ err:
>  #define pxa_gpio_probe_dt(pdev)		(-1)
>  #endif
>  
> +static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end,
> +			      int (*set_wake)(unsigned int, unsigned int))
> +{
> +	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
> +	struct pxa_gpio_chip *chips;
> +
> +	chips = devm_kzalloc(&pdev->dev, nbanks * sizeof(*chips), GFP_KERNEL);
> +	if (chips == NULL) {
> +		pr_err("%s: failed to allocate GPIO chips\n", __func__);
> +		return -ENOMEM;
> +	}
> +
> +	for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
> +		struct gpio_chip *c = &chips[i].chip;
> +
> +		sprintf(chips[i].label, "gpio-%d", i);
> +		chips[i].regbase = gpio_reg_base + BANK_OFF(i);
> +		chips[i].set_wake = set_wake;
> +
> +		c->base  = gpio;
> +		c->label = chips[i].label;
> +
> +		c->direction_input  = pxa_gpio_direction_input;
> +		c->direction_output = pxa_gpio_direction_output;
> +		c->get = pxa_gpio_get;
> +		c->set = pxa_gpio_set;
> +		c->to_irq = pxa_gpio_to_irq;
> +#ifdef CONFIG_OF_GPIO
> +		c->of_node = pxa_gpio_of_node;
> +		c->of_xlate = pxa_gpio_of_xlate;
> +		c->of_gpio_n_cells = 2;
> +#endif
> +
> +		/* number of GPIOs on last bank may be less than 32 */
> +		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
> +
> +		chips[i].irq_base = irq_alloc_descs(-1, 0, c->ngpio, 0);
> +		if (chips[i].irq_base < 0)
> +			return -EINVAL;
> +		if (!irq_domain_add_legacy(pdev->dev.of_node, c->ngpio,
> +					   chips[i].irq_base, 0,
> +					   &pxa_irq_domain_ops, &chips[i]))

if !CONFIG_OF, you get:
drivers/gpio/gpio-pxa.c:479: error: 'pxa_irq_domain_ops' undeclared (first use in this function)

Also, for !CONFIG_IRQ_DOMAIN, you get:
drivers/gpio/gpio-pxa.c: In function 'pxa_init_gpio_chip':
drivers/gpio/gpio-pxa.c:477: error: implicit declaration of function 'irq_domain_add_legacy'

Should we select IRQ_DOMAIN for PXA?
Will it work for other drivers?

> +			return -ENODEV;
> +
> +		gpiochip_add(c);
> +	}
> +	pxa_gpio_chips = chips;
> +	return 0;
> +}
> +
>  static int pxa_gpio_probe(struct platform_device *pdev)
>  {
>  	struct pxa_gpio_chip *c;

[...]
Haojian Zhuang Jan. 29, 2013, 4:13 p.m. UTC | #2
On 28 January 2013 19:07, Igor Grinberg <grinberg@compulab.co.il> wrote:
> On 01/23/13 10:25, Haojian Zhuang wrote:
>> Avoid to use global irq_base in gpio-pxa driver. Define irq_base in each
>> pxa_gpio_chip instead. Then we can avoid to use macro PXA_GPIO_TO_IRQ() &
>> MMP_GPIO_TO_IRQ().
>>
>> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
>> ---
>>  arch/arm/mach-pxa/pxa25x.c |    2 +-
>>  arch/arm/mach-pxa/pxa27x.c |    2 +-
>>  drivers/gpio/gpio-pxa.c    |  142 ++++++++++++++++++++++----------------------
>>  include/linux/gpio-pxa.h   |    4 +-
>>  4 files changed, 77 insertions(+), 73 deletions(-)
>
> [...]
>
>> diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
>> index 8e66c6b..da6e7fd 100644
>> --- a/drivers/gpio/gpio-pxa.c
>> +++ b/drivers/gpio/gpio-pxa.c
>
> [...]
>
>> @@ -485,7 +452,7 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
>>       return 0;
>>  }
>>
>> -const struct irq_domain_ops pxa_irq_domain_ops = {
>> +static const struct irq_domain_ops pxa_irq_domain_ops = {
>>       .map    = pxa_irq_domain_map,
>>       .xlate  = irq_domain_xlate_twocell,
>>  };
>
> You should also move this out of CONFIG_OF as I don't think it is a dependency,
> and also otherwise you get the below...
>
>> @@ -529,14 +496,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
>>       nr_gpios = nr_banks << 5;
>>       pxa_last_gpio = nr_gpios - 1;
>>
>> -     irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
>> -     if (irq_base < 0) {
>> -             dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
>> -             goto err;
>> -     }
>> -     domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
>> -                                    &pxa_irq_domain_ops, NULL);
>> -     pxa_gpio_of_node = np;
>>       return 0;
>>  err:
>>       iounmap(gpio_reg_base);
>> @@ -546,6 +505,56 @@ err:
>>  #define pxa_gpio_probe_dt(pdev)              (-1)
>>  #endif
>>
>> +static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end,
>> +                           int (*set_wake)(unsigned int, unsigned int))
>> +{
>> +     int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
>> +     struct pxa_gpio_chip *chips;
>> +
>> +     chips = devm_kzalloc(&pdev->dev, nbanks * sizeof(*chips), GFP_KERNEL);
>> +     if (chips == NULL) {
>> +             pr_err("%s: failed to allocate GPIO chips\n", __func__);
>> +             return -ENOMEM;
>> +     }
>> +
>> +     for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
>> +             struct gpio_chip *c = &chips[i].chip;
>> +
>> +             sprintf(chips[i].label, "gpio-%d", i);
>> +             chips[i].regbase = gpio_reg_base + BANK_OFF(i);
>> +             chips[i].set_wake = set_wake;
>> +
>> +             c->base  = gpio;
>> +             c->label = chips[i].label;
>> +
>> +             c->direction_input  = pxa_gpio_direction_input;
>> +             c->direction_output = pxa_gpio_direction_output;
>> +             c->get = pxa_gpio_get;
>> +             c->set = pxa_gpio_set;
>> +             c->to_irq = pxa_gpio_to_irq;
>> +#ifdef CONFIG_OF_GPIO
>> +             c->of_node = pxa_gpio_of_node;
>> +             c->of_xlate = pxa_gpio_of_xlate;
>> +             c->of_gpio_n_cells = 2;
>> +#endif
>> +
>> +             /* number of GPIOs on last bank may be less than 32 */
>> +             c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
>> +
>> +             chips[i].irq_base = irq_alloc_descs(-1, 0, c->ngpio, 0);
>> +             if (chips[i].irq_base < 0)
>> +                     return -EINVAL;
>> +             if (!irq_domain_add_legacy(pdev->dev.of_node, c->ngpio,
>> +                                        chips[i].irq_base, 0,
>> +                                        &pxa_irq_domain_ops, &chips[i]))
>
> if !CONFIG_OF, you get:
> drivers/gpio/gpio-pxa.c:479: error: 'pxa_irq_domain_ops' undeclared (first use in this function)
>
> Also, for !CONFIG_IRQ_DOMAIN, you get:
> drivers/gpio/gpio-pxa.c: In function 'pxa_init_gpio_chip':
> drivers/gpio/gpio-pxa.c:477: error: implicit declaration of function 'irq_domain_add_legacy'
>
> Should we select IRQ_DOMAIN for PXA?
> Will it work for other drivers?
>
We could use IRQ_DOMAIN. After all these patches are applied, there's
no CONFIG_IRQ_DOMAIN in pxa-gpio.c.
I tested the gpio driver on pxa910 (arch/mmp) w/wo CONFIG_OF. It works.

Thanks for your test. I'm sorry that I didn't do enough build test on
pxa. I'll fix all these issues.

>> +                     return -ENODEV;
>> +
>> +             gpiochip_add(c);
>> +     }
>> +     pxa_gpio_chips = chips;
>> +     return 0;
>> +}
>> +
>>  static int pxa_gpio_probe(struct platform_device *pdev)
>>  {
>>       struct pxa_gpio_chip *c;
>
> [...]
>
>
> --
> Regards,
> Igor.
diff mbox

Patch

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 3f5171e..f4c293a 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -289,7 +289,7 @@  static inline void pxa25x_init_pm(void) {}
 
 static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	uint32_t mask = 0;
 
 	if (gpio >= 0 && gpio < 85)
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 8047ee0..257d936 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -356,7 +356,7 @@  static inline void pxa27x_init_pm(void) {}
  */
 static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	uint32_t mask;
 
 	if (gpio >= 0 && gpio < 128)
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 8e66c6b..da6e7fd 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -13,6 +13,7 @@ 
  */
 #include <linux/module.h>
 #include <linux/clk.h>
+#include <linux/device.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/gpio-pxa.h>
@@ -61,16 +62,15 @@ 
 #define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 
 int pxa_last_gpio;
-static int irq_base;
 
 #ifdef CONFIG_OF
-static struct irq_domain *domain;
 static struct device_node *pxa_gpio_of_node;
 #endif
 
 struct pxa_gpio_chip {
 	struct gpio_chip chip;
 	void __iomem	*regbase;
+	unsigned int	irq_base;
 	char label[10];
 
 	unsigned long	irq_mask;
@@ -170,14 +170,22 @@  static inline int __gpio_is_occupied(unsigned gpio)
 	return ret;
 }
 
-static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+static int pxa_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 {
-	return chip->base + offset + irq_base;
+	struct pxa_gpio_chip *chip = NULL;
+
+	chip = container_of(gc, struct pxa_gpio_chip, chip);
+	return chip->irq_base + offset;
 }
 
-int pxa_irq_to_gpio(int irq)
+int pxa_irq_to_gpio(struct irq_data *d)
 {
-	return irq - irq_base;
+	struct pxa_gpio_chip *chip;
+	int gpio;
+
+	chip = (struct pxa_gpio_chip *)d->domain->host_data;
+	gpio = d->irq - chip->irq_base + chip->chip.base;
+	return gpio;
 }
 
 static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
@@ -250,47 +258,6 @@  static int pxa_gpio_of_xlate(struct gpio_chip *gc,
 }
 #endif
 
-static int pxa_init_gpio_chip(int gpio_end,
-					int (*set_wake)(unsigned int, unsigned int))
-{
-	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
-	struct pxa_gpio_chip *chips;
-
-	chips = kzalloc(nbanks * sizeof(struct pxa_gpio_chip), GFP_KERNEL);
-	if (chips == NULL) {
-		pr_err("%s: failed to allocate GPIO chips\n", __func__);
-		return -ENOMEM;
-	}
-
-	for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
-		struct gpio_chip *c = &chips[i].chip;
-
-		sprintf(chips[i].label, "gpio-%d", i);
-		chips[i].regbase = gpio_reg_base + BANK_OFF(i);
-		chips[i].set_wake = set_wake;
-
-		c->base  = gpio;
-		c->label = chips[i].label;
-
-		c->direction_input  = pxa_gpio_direction_input;
-		c->direction_output = pxa_gpio_direction_output;
-		c->get = pxa_gpio_get;
-		c->set = pxa_gpio_set;
-		c->to_irq = pxa_gpio_to_irq;
-#ifdef CONFIG_OF_GPIO
-		c->of_node = pxa_gpio_of_node;
-		c->of_xlate = pxa_gpio_of_xlate;
-		c->of_gpio_n_cells = 2;
-#endif
-
-		/* number of GPIOs on last bank may be less than 32 */
-		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
-		gpiochip_add(c);
-	}
-	pxa_gpio_chips = chips;
-	return 0;
-}
-
 /* Update only those GRERx and GFERx edge detection register bits if those
  * bits are set in c->irq_mask
  */
@@ -309,7 +276,7 @@  static inline void update_edge_detect(struct pxa_gpio_chip *c)
 static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 {
 	struct pxa_gpio_chip *c;
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	unsigned long gpdr, mask = GPIO_bit(gpio);
 
 	c = gpio_to_pxachip(gpio);
@@ -383,7 +350,7 @@  static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 
 static void pxa_ack_muxed_gpio(struct irq_data *d)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 
 	writel_relaxed(GPIO_bit(gpio), c->regbase + GEDR_OFFSET);
@@ -391,7 +358,7 @@  static void pxa_ack_muxed_gpio(struct irq_data *d)
 
 static void pxa_mask_muxed_gpio(struct irq_data *d)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 	uint32_t grer, gfer;
 
@@ -405,7 +372,7 @@  static void pxa_mask_muxed_gpio(struct irq_data *d)
 
 static int pxa_gpio_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 
 	if (c->set_wake)
@@ -416,7 +383,7 @@  static int pxa_gpio_set_wake(struct irq_data *d, unsigned int on)
 
 static void pxa_unmask_muxed_gpio(struct irq_data *d)
 {
-	int gpio = pxa_irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 
 	c->irq_mask |= GPIO_bit(gpio);
@@ -485,7 +452,7 @@  static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
 	return 0;
 }
 
-const struct irq_domain_ops pxa_irq_domain_ops = {
+static const struct irq_domain_ops pxa_irq_domain_ops = {
 	.map	= pxa_irq_domain_map,
 	.xlate	= irq_domain_xlate_twocell,
 };
@@ -529,14 +496,6 @@  static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	nr_gpios = nr_banks << 5;
 	pxa_last_gpio = nr_gpios - 1;
 
-	irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
-	if (irq_base < 0) {
-		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
-		goto err;
-	}
-	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
-				       &pxa_irq_domain_ops, NULL);
-	pxa_gpio_of_node = np;
 	return 0;
 err:
 	iounmap(gpio_reg_base);
@@ -546,6 +505,56 @@  err:
 #define pxa_gpio_probe_dt(pdev)		(-1)
 #endif
 
+static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end,
+			      int (*set_wake)(unsigned int, unsigned int))
+{
+	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
+	struct pxa_gpio_chip *chips;
+
+	chips = devm_kzalloc(&pdev->dev, nbanks * sizeof(*chips), GFP_KERNEL);
+	if (chips == NULL) {
+		pr_err("%s: failed to allocate GPIO chips\n", __func__);
+		return -ENOMEM;
+	}
+
+	for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
+		struct gpio_chip *c = &chips[i].chip;
+
+		sprintf(chips[i].label, "gpio-%d", i);
+		chips[i].regbase = gpio_reg_base + BANK_OFF(i);
+		chips[i].set_wake = set_wake;
+
+		c->base  = gpio;
+		c->label = chips[i].label;
+
+		c->direction_input  = pxa_gpio_direction_input;
+		c->direction_output = pxa_gpio_direction_output;
+		c->get = pxa_gpio_get;
+		c->set = pxa_gpio_set;
+		c->to_irq = pxa_gpio_to_irq;
+#ifdef CONFIG_OF_GPIO
+		c->of_node = pxa_gpio_of_node;
+		c->of_xlate = pxa_gpio_of_xlate;
+		c->of_gpio_n_cells = 2;
+#endif
+
+		/* number of GPIOs on last bank may be less than 32 */
+		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
+
+		chips[i].irq_base = irq_alloc_descs(-1, 0, c->ngpio, 0);
+		if (chips[i].irq_base < 0)
+			return -EINVAL;
+		if (!irq_domain_add_legacy(pdev->dev.of_node, c->ngpio,
+					   chips[i].irq_base, 0,
+					   &pxa_irq_domain_ops, &chips[i]))
+			return -ENODEV;
+
+		gpiochip_add(c);
+	}
+	pxa_gpio_chips = chips;
+	return 0;
+}
+
 static int pxa_gpio_probe(struct platform_device *pdev)
 {
 	struct pxa_gpio_chip *c;
@@ -558,14 +567,6 @@  static int pxa_gpio_probe(struct platform_device *pdev)
 	ret = pxa_gpio_probe_dt(pdev);
 	if (ret < 0) {
 		pxa_last_gpio = pxa_gpio_nums();
-#ifdef CONFIG_ARCH_PXA
-		if (gpio_is_pxa_type(gpio_type))
-			irq_base = PXA_GPIO_TO_IRQ(0);
-#endif
-#ifdef CONFIG_ARCH_MMP
-		if (gpio_is_mmp_type(gpio_type))
-			irq_base = MMP_GPIO_TO_IRQ(0);
-#endif
 	} else {
 		use_of = 1;
 	}
@@ -605,7 +606,8 @@  static int pxa_gpio_probe(struct platform_device *pdev)
 
 	/* Initialize GPIO chips */
 	info = dev_get_platdata(&pdev->dev);
-	pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL);
+	pxa_init_gpio_chip(pdev, pxa_last_gpio,
+			   info ? info->gpio_set_wake : NULL);
 
 	/* clear all GPIO edge detects */
 	for_each_gpio_chip(gpio, c) {
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index d88d6e3..bdee118 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -1,6 +1,8 @@ 
 #ifndef __GPIO_PXA_H
 #define __GPIO_PXA_H
 
+#include <linux/irq.h>
+
 #define GPIO_bit(x)	(1 << ((x) & 0x1f))
 
 #define gpio_to_bank(gpio)	((gpio) >> 5)
@@ -11,7 +13,7 @@ 
  */
 extern int pxa_last_gpio;
 
-extern int pxa_irq_to_gpio(int irq);
+extern int pxa_irq_to_gpio(struct irq_data *d);
 
 struct pxa_gpio_platform_data {
 	unsigned ed_mask;	/* not 0 means ed_mask reg is available */