diff options
Diffstat (limited to 'drivers/gpio/wm8994-gpio.c')
| -rw-r--r-- | drivers/gpio/wm8994-gpio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpio/wm8994-gpio.c b/drivers/gpio/wm8994-gpio.c index de28b4a470ea..2ac9a16d3daa 100644 --- a/drivers/gpio/wm8994-gpio.c +++ b/drivers/gpio/wm8994-gpio.c @@ -13,6 +13,7 @@ */ #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/module.h> #include <linux/gpio.h> #include <linux/mfd/core.h> @@ -80,6 +81,18 @@ static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value) wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, WM8994_GPN_LVL, value); } +static int wm8994_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip); + struct wm8994 *wm8994 = wm8994_gpio->wm8994; + + if (!wm8994->irq_base) + return -EINVAL; + + return wm8994->irq_base + offset; +} + + #ifdef CONFIG_DEBUG_FS static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) { |