gpiolib: Implement gpio_to_irq() for wm831x
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/gpio/wm831x-gpio.c b/drivers/gpio/wm831x-gpio.c
index f5e4934..b4468b6 100644
--- a/drivers/gpio/wm831x-gpio.c
+++ b/drivers/gpio/wm831x-gpio.c
@@ -22,6 +22,7 @@
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/gpio.h>
+#include <linux/mfd/wm831x/irq.h>
struct wm831x_gpio {
struct wm831x *wm831x;
@@ -78,6 +79,17 @@
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)
{
@@ -173,6 +185,7 @@
.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,
};