From: Przemyslaw Marczak <p.marczak@samsung.com>
Date: Thu, 6 Mar 2014 15:39:44 +0000 (+0100)
Subject: samsung: misc: keys: fix gpio key debouncing by adding 50 ms delay
X-Git-Tag: submit/tizen_boot/20140403.091755~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=93de9b3c1fb586277efcbc89380d2b30c37ed1fd;p=platform%2Fkernel%2Fu-boot.git

samsung: misc: keys: fix gpio key debouncing by adding 50 ms delay

This change prevents gpio keys debouncing by adding 50 ms delay
when key pressed condition met.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
---

diff --git a/board/samsung/common/misc.c b/board/samsung/common/misc.c
index 65b5c3052e..5b43821c4b 100644
--- a/board/samsung/common/misc.c
+++ b/board/samsung/common/misc.c
@@ -105,6 +105,10 @@ static int check_keys(void)
 	if (key_pressed(KEY_VOLUMEDOWN))
 		keys += KEY_VOLUMEDOWN;
 
+	/* Avoids gpio keys debouncing */
+	if (keys)
+		mdelay(50);
+
 	return keys;
 }