extcon: gpio: Use gpio driver/chip debounce if supported

This patch use gpio_set_debounce() API provided from gpiolib if SoC or device
driver with gpio support gpio_set_debounce() function.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 6368a0f3ae6d..862743bc825f 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -100,7 +100,13 @@ static int gpio_extcon_probe(struct platform_device *pdev)
         extcon_data->state_off = pdata->state_off;
         if (pdata->state_on && pdata->state_off)
                 extcon_data->edev.print_state = extcon_gpio_print_state;
-        extcon_data->debounce_jiffies = msecs_to_jiffies(pdata->debounce);
+        if (pdata->debounce) {
+                ret = gpio_set_debounce(extcon_data->gpio,
+                                        pdata->debounce * 1000);
+                if (ret < 0)
+                        extcon_data->debounce_jiffies =
+                                msecs_to_jiffies(pdata->debounce);
+        }
 
         ret = extcon_dev_register(&extcon_data->edev, &pdev->dev);
         if (ret < 0)