From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 11 Sep 2013 02:16:18 +0000 (-0700)
Subject: extcon: gpio: Use gpio driver/chip debounce if supported
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=338de0ca;p=deliverable%2Flinux.git

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>
---

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)