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path: root/drivers/gpio/wm831x-gpio.c
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Diffstat (limited to 'drivers/gpio/wm831x-gpio.c')
-rw-r--r--drivers/gpio/wm831x-gpio.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/gpio/wm831x-gpio.c b/drivers/gpio/wm831x-gpio.c
index f9c09a54ec7f..b4468b616890 100644
--- a/drivers/gpio/wm831x-gpio.c
+++ b/drivers/gpio/wm831x-gpio.c
@@ -22,8 +22,7 @@
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/gpio.h>
-
-#define WM831X_GPIO_MAX 16
+#include <linux/mfd/wm831x/irq.h>
struct wm831x_gpio {
struct wm831x *wm831x;
@@ -80,6 +79,17 @@ static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
value << offset);
}
+static int wm831x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
+ struct wm831x *wm831x = wm831x_gpio->wm831x;
+
+ if (!wm831x->irq_base)
+ return -EINVAL;
+
+ return wm831x->irq_base + WM831X_IRQ_GPIO_1 + offset;
+}
+
#ifdef CONFIG_DEBUG_FS
static void wm831x_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{
@@ -175,6 +185,7 @@ static struct gpio_chip template_chip = {
.get = wm831x_gpio_get,
.direction_output = wm831x_gpio_direction_out,
.set = wm831x_gpio_set,
+ .to_irq = wm831x_gpio_to_irq,
.dbg_show = wm831x_gpio_dbg_show,
.can_sleep = 1,
};
@@ -192,7 +203,7 @@ static int __devinit wm831x_gpio_probe(struct platform_device *pdev)
wm831x_gpio->wm831x = wm831x;
wm831x_gpio->gpio_chip = template_chip;
- wm831x_gpio->gpio_chip.ngpio = WM831X_GPIO_MAX;
+ wm831x_gpio->gpio_chip.ngpio = wm831x->num_gpio;
wm831x_gpio->gpio_chip.dev = &pdev->dev;
if (pdata && pdata->gpio_base)
wm831x_gpio->gpio_chip.base = pdata->gpio_base;