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path: root/drivers/gpio/gpio-pxa.c
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Diffstat (limited to 'drivers/gpio/gpio-pxa.c')
-rw-r--r--drivers/gpio/gpio-pxa.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 5689ce62fd81..fc3ace3fd4cb 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -64,6 +64,7 @@ struct pxa_gpio_chip {
unsigned long irq_mask;
unsigned long irq_edge_rise;
unsigned long irq_edge_fall;
+ int (*set_wake)(unsigned int gpio, unsigned int on);
#ifdef CONFIG_PM
unsigned long saved_gplr;
@@ -269,7 +270,8 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
(value ? GPSR_OFFSET : GPCR_OFFSET));
}
-static int __devinit pxa_init_gpio_chip(int gpio_end)
+static int __devinit 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;
@@ -285,6 +287,7 @@ static int __devinit pxa_init_gpio_chip(int gpio_end)
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;
@@ -412,6 +415,17 @@ static void pxa_mask_muxed_gpio(struct irq_data *d)
writel_relaxed(gfer, c->regbase + GFER_OFFSET);
}
+static int pxa_gpio_set_wake(struct irq_data *d, unsigned int on)
+{
+ int gpio = pxa_irq_to_gpio(d->irq);
+ struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
+
+ if (c->set_wake)
+ return c->set_wake(gpio, on);
+ else
+ return 0;
+}
+
static void pxa_unmask_muxed_gpio(struct irq_data *d)
{
int gpio = pxa_irq_to_gpio(d->irq);
@@ -427,6 +441,7 @@ static struct irq_chip pxa_muxed_gpio_chip = {
.irq_mask = pxa_mask_muxed_gpio,
.irq_unmask = pxa_unmask_muxed_gpio,
.irq_set_type = pxa_gpio_irq_type,
+ .irq_set_wake = pxa_gpio_set_wake,
};
static int pxa_gpio_nums(void)
@@ -471,6 +486,7 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
struct pxa_gpio_chip *c;
struct resource *res;
struct clk *clk;
+ struct pxa_gpio_platform_data *info;
int gpio, irq, ret;
int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
@@ -516,7 +532,8 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
}
/* Initialize GPIO chips */
- pxa_init_gpio_chip(pxa_last_gpio);
+ info = dev_get_platdata(&pdev->dev);
+ pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL);
/* clear all GPIO edge detects */
for_each_gpio_chip(gpio, c) {