ar71xx: use the gpio_keys_polled driver instead of gpio_buttons

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26603 3c298f89-4303-0410-b956-a3cf2f4a3e73

38 files changed, 299 insertions, 262 deletions

diff --git a/target/linux/ar71xx/Makefile b/target/linux/ar71xx/Makefile
index 1ab408d54..b223c40dd 100644
--- a/target/linux/ar71xx/Makefile
+++ b/target/linux/ar71xx/Makefile
@@ -19,7 +19,7 @@ include $(INCLUDE_DIR)/target.mk
 
 DEFAULT_PACKAGES += \
 	kmod-leds-gpio kmod-input-core kmod-input-polldev \
-	kmod-input-gpio-buttons kmod-button-hotplug swconfig
+	kmod-input-gpio-keys-polled kmod-button-hotplug swconfig
 
 define Target/Description
 	Build firmware images for Atheros AR71xx/AR913x/AR934x based boards.
diff --git a/target/linux/ar71xx/base-files/lib/preinit/05_enable_reset_button_ar71xx b/target/linux/ar71xx/base-files/lib/preinit/05_enable_reset_button_ar71xx
index 2b4e4adb5..305fe0018 100644
--- a/target/linux/ar71xx/base-files/lib/preinit/05_enable_reset_button_ar71xx
+++ b/target/linux/ar71xx/base-files/lib/preinit/05_enable_reset_button_ar71xx
@@ -8,7 +8,7 @@
 preinit_enable_reset_button() {
 	insmod input-core
 	insmod input-polldev
-	insmod gpio_buttons
+	insmod gpio_keys_polled
 	insmod button-hotplug
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.c b/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.c
index 85ba33e50..c22e652f1 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.c
@@ -15,14 +15,14 @@
 
 #include "dev-gpio-buttons.h"
 
-void __init ar71xx_add_device_gpio_buttons(int id,
-					   unsigned poll_interval,
-					   unsigned nbuttons,
-					   struct gpio_button *buttons)
+void __init ar71xx_register_gpio_keys_polled(int id,
+					     unsigned poll_interval,
+					     unsigned nbuttons,
+					     struct gpio_keys_button *buttons)
 {
 	struct platform_device *pdev;
-	struct gpio_buttons_platform_data pdata;
-	struct gpio_button *p;
+	struct gpio_keys_platform_data pdata;
+	struct gpio_keys_button *p;
 	int err;
 
 	p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
@@ -31,7 +31,7 @@ void __init ar71xx_add_device_gpio_buttons(int id,
 
 	memcpy(p, buttons, nbuttons * sizeof(*p));
 
-	pdev = platform_device_alloc("gpio-buttons", id);
+	pdev = platform_device_alloc("gpio-keys-polled", id);
 	if (!pdev)
 		goto err_free_buttons;
 
@@ -44,7 +44,6 @@ void __init ar71xx_add_device_gpio_buttons(int id,
 	if (err)
 		goto err_put_pdev;
 
-
 	err = platform_device_add(pdev);
 	if (err)
 		goto err_put_pdev;
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.h b/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.h
index 97e9fe599..5ed863489 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.h
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/dev-gpio-buttons.h
@@ -13,13 +13,11 @@
 #define _AR71XX_DEV_GPIO_BUTTONS_H
 
 #include <linux/input.h>
-#include <linux/gpio_buttons.h>
+#include <linux/gpio_keys.h>
 
-#include <asm/mach-ar71xx/platform.h>
-
-void ar71xx_add_device_gpio_buttons(int id,
-				    unsigned poll_interval,
-				    unsigned nbuttons,
-				    struct gpio_button *buttons) __init;
+void ar71xx_register_gpio_keys_polled(int id,
+				      unsigned poll_interval,
+				      unsigned nbuttons,
+				      struct gpio_keys_button *buttons);
 
 #endif /* _AR71XX_DEV_GPIO_BUTTONS_H */
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap81.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap81.c
index a8d1818ae..66c57ed30 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap81.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap81.c
@@ -30,7 +30,8 @@
 #define AP81_GPIO_BTN_SW4	12
 #define AP81_GPIO_BTN_SW1	21
 
-#define AP81_BUTTONS_POLL_INTERVAL	20
+#define AP81_KEYS_POLL_INTERVAL		20 /* msecs */
+#define AP81_KEYS_DEBOUNCE_INTERVAL	(3 * AP81_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition ap81_partitions[] = {
@@ -87,19 +88,19 @@ static struct gpio_led ap81_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button ap81_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ap81_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw1",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = AP81_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP81_GPIO_BTN_SW1,
 		.active_low	= 1,
 	}, {
 		.desc		= "sw4",
 		.type		= EV_KEY,
 		.code		= BTN_1,
-		.threshold	= 3,
+		.debounce_interval = AP81_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP81_GPIO_BTN_SW4,
 		.active_low	= 1,
 	}
@@ -131,9 +132,9 @@ static void __init ap81_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap81_leds_gpio),
 					ap81_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, AP81_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ap81_gpio_buttons),
-					ap81_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, AP81_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ap81_gpio_keys),
+					 ap81_gpio_keys);
 
 	ar9xxx_add_device_wmac(eeprom, NULL);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c
index 964fac55d..bcd2faeb5 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c
@@ -38,7 +38,8 @@
 #define AP83_050_GPIO_VSC7385_MOSI	16
 #define AP83_050_GPIO_VSC7385_SCK	17
 
-#define AP83_BUTTONS_POLL_INTERVAL	20
+#define AP83_KEYS_POLL_INTERVAL		20	/* msecs */
+#define AP83_KEYS_DEBOUNCE_INTERVAL	(3 * AP83_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition ap83_flash_partitions[] = {
@@ -115,19 +116,19 @@ static struct gpio_led ap83_leds_gpio[] __initdata = {
 	},
 };
 
-static struct gpio_button ap83_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ap83_gpio_keys[] __initdata = {
 	{
 		.desc		= "soft_reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP83_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "jumpstart",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP83_GPIO_BTN_JUMPSTART,
 		.active_low	= 1,
 	}
@@ -216,9 +217,9 @@ static void __init ap83_generic_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 					ap83_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, AP83_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ap83_gpio_buttons),
-					ap83_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, AP83_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ap83_gpio_keys),
+					 ap83_gpio_keys);
 
 	ar71xx_add_device_usb();
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap96.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap96.c
index c8d86ef78..a43631ff2 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap96.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap96.c
@@ -37,7 +37,8 @@
 /* WPS button - next to a led on right */
 #define AP96_GPIO_BTN_WPS		8
 
-#define AP96_BUTTONS_POLL_INTERVAL    20
+#define AP96_KEYS_POLL_INTERVAL		20	/* msecs */
+#define AP96_KEYS_DEBOUNCE_INTERVAL	(3 * AP96_KEYS_POLL_INTERVAL)
 
 #define AP96_WMAC0_MAC_OFFSET		0x120c
 #define AP96_WMAC1_MAC_OFFSET		0x520c
@@ -116,19 +117,19 @@ static struct gpio_led ap96_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button ap96_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ap96_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = AP96_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP96_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = AP96_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AP96_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -166,9 +167,9 @@ static void __init ap96_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap96_leds_gpio),
 					ap96_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, AP96_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ap96_gpio_buttons),
-					ap96_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, AP96_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ap96_gpio_keys),
+					 ap96_gpio_keys);
 
 	ap94_pci_init(art + AP96_CALDATA0_OFFSET,
 		      art + AP96_WMAC0_MAC_OFFSET,
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-aw-nr580.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-aw-nr580.c
index a6c317ea6..96cae5534 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-aw-nr580.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-aw-nr580.c
@@ -31,7 +31,8 @@
 #define AW_NR580_GPIO_BTN_WPS		3
 #define AW_NR580_GPIO_BTN_RESET		11
 
-#define AW_NR580_BUTTONS_POLL_INTERVAL	20
+#define AW_NR580_KEYS_POLL_INTERVAL	20	/* msecs */
+#define AW_NR580_KEYS_DEBOUNCE_INTERVAL	(3 * AW_NR580_KEYS_POLL_INTERVAL)
 
 static struct gpio_led aw_nr580_leds_gpio[] __initdata = {
 	{
@@ -57,19 +58,19 @@ static struct gpio_led aw_nr580_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button aw_nr580_gpio_buttons[] __initdata = {
+static struct gpio_keys_button aw_nr580_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = AW_NR580_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AW_NR580_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = AW_NR580_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= AW_NR580_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -92,9 +93,9 @@ static void __init aw_nr580_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(aw_nr580_leds_gpio),
 					aw_nr580_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, AW_NR580_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(aw_nr580_gpio_buttons),
-					aw_nr580_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, AW_NR580_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(aw_nr580_gpio_keys),
+					 aw_nr580_gpio_keys);
 }
 
 MIPS_MACHINE(AR71XX_MACH_AW_NR580, "AW-NR580", "AzureWave AW-NR580",
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-db120.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-db120.c
index c6fb64245..56c2bf752 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-db120.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-db120.c
@@ -33,7 +33,8 @@
 #define DB120_CALDATA_OFFSET	0x1000
 #define DB120_WMAC_MAC_OFFSET	0x1002
 
-#define DB120_BUTTONS_POLL_INTERVAL	20
+#define DB120_KEYS_POLL_INTERVAL	20	/* msecs */
+#define DB120_KEYS_DEBOUNCE_INTERVAL	(3 * DB120_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition db120_partitions[] = {
@@ -98,12 +99,12 @@ static struct gpio_led db120_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button db120_gpio_buttons[] __initdata = {
+static struct gpio_keys_button db120_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw1",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = DB120_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DB120_GPIO_BTN_SW1,
 		.active_low	= 1,
 	}
@@ -120,9 +121,9 @@ static void __init db120_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(db120_leds_gpio),
 					db120_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, DB120_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(db120_gpio_buttons),
-					db120_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, DB120_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(db120_gpio_keys),
+					 db120_gpio_keys);
 
 	ar9xxx_add_device_wmac(art + DB120_CALDATA_OFFSET,
 				art + DB120_WMAC_MAC_OFFSET);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-600-a1.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-600-a1.c
index c076489bf..34f77dde3 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-600-a1.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-600-a1.c
@@ -28,7 +28,8 @@
 #define DIR_600_A1_GPIO_BTN_RESET		8
 #define DIR_600_A1_GPIO_BTN_WPS			12
 
-#define DIR_600_A1_BUTTONS_POLL_INTERVAL	20
+#define DIR_600_A1_KEYS_POLL_INTERVAL	20	/* msecs */
+#define DIR_600_A1_KEYS_DEBOUNCE_INTERVAL (3 * DIR_600_A1_KEYS_POLL_INTERVAL)
 
 #define DIR_600_A1_NVRAM_ADDR	0x1f030000
 #define DIR_600_A1_NVRAM_SIZE	0x10000
@@ -91,19 +92,19 @@ static struct gpio_led dir_600_a1_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button dir_600_a1_gpio_buttons[] __initdata = {
+static struct gpio_keys_button dir_600_a1_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = DIR_600_A1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR_600_A1_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = DIR_600_A1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR_600_A1_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -128,9 +129,9 @@ static void __init dir_600_a1_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(dir_600_a1_leds_gpio),
 					dir_600_a1_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, DIR_600_A1_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(dir_600_a1_gpio_buttons),
-					dir_600_a1_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, DIR_600_A1_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(dir_600_a1_gpio_keys),
+					 dir_600_a1_gpio_keys);
 
 	ar71xx_eth1_data.has_ar7240_switch = 1;
 	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-615-c1.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-615-c1.c
index e7431c5d2..2b1a8e24b 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-615-c1.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-615-c1.c
@@ -35,7 +35,8 @@
 #define DIR_615C1_GPIO_BTN_WPS		12
 #define DIR_615C1_GPIO_BTN_RESET	21
 
-#define DIR_615C1_BUTTONS_POLL_INTERVAL	20
+#define DIR_615C1_KEYS_POLL_INTERVAL	20	/* msecs */
+#define DIR_615C1_KEYS_DEBOUNCE_INTERVAL (3 * DIR_615C1_KEYS_POLL_INTERVAL)
 
 #define DIR_615C1_CONFIG_ADDR		0x1f020000
 #define DIR_615C1_CONFIG_SIZE		0x10000
@@ -112,18 +113,18 @@ static struct gpio_led dir_615c1_leds_gpio[] __initdata = {
 
 };
 
-static struct gpio_button dir_615c1_gpio_buttons[] __initdata = {
+static struct gpio_keys_button dir_615c1_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = DIR_615C1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR_615C1_GPIO_BTN_RESET,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = DIR_615C1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR_615C1_GPIO_BTN_WPS,
 	}
 };
@@ -163,9 +164,9 @@ static void __init dir_615c1_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(dir_615c1_leds_gpio),
 					dir_615c1_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, DIR_615C1_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(dir_615c1_gpio_buttons),
-					dir_615c1_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, DIR_615C1_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(dir_615c1_gpio_keys),
+					 dir_615c1_gpio_keys);
 
 	ar9xxx_add_device_wmac(eeprom, wlan_mac);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-825-b1.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-825-b1.c
index 6b4bc7608..84fb184c0 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-825-b1.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-dir-825-b1.c
@@ -39,7 +39,8 @@
 #define DIR825B1_GPIO_RTL8366_SDA		5
 #define DIR825B1_GPIO_RTL8366_SCK		7
 
-#define DIR825B1_BUTTONS_POLL_INTERVAL		20
+#define DIR825B1_KEYS_POLL_INTERVAL		20	/* msecs */
+#define DIR825B1_KEYS_DEBOUNCE_INTERVAL		(3 * DIR825B1_KEYS_POLL_INTERVAL)
 
 #define DIR825B1_CAL_LOCATION_0			0x1f661000
 #define DIR825B1_CAL_LOCATION_1			0x1f665000
@@ -112,19 +113,19 @@ static struct gpio_led dir825b1_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button dir825b1_gpio_buttons[] __initdata = {
+static struct gpio_keys_button dir825b1_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = DIR825B1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR825B1_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = DIR825B1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= DIR825B1_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -176,9 +177,9 @@ static void __init dir825b1_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(dir825b1_leds_gpio),
 					dir825b1_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, DIR825B1_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(dir825b1_gpio_buttons),
-					dir825b1_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, DIR825B1_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(dir825b1_gpio_keys),
+					 dir825b1_gpio_keys);
 
 	ar71xx_add_device_usb();
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-eap7660d.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-eap7660d.c
index c749eec4d..d960d0cd4 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-eap7660d.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-eap7660d.c
@@ -22,7 +22,9 @@
 #include "dev-leds-gpio.h"
 #include "dev-m25p80.h"
 
-#define EAP7660D_BUTTONS_POLL_INTERVAL	20
+#define EAP7660D_KEYS_POLL_INTERVAL	20	/* msecs */
+#define EAP7660D_KEYS_DEBOUNCE_INTERVAL	(3 * EAP7660D_KEYS_POLL_INTERVAL)
+
 #define EAP7660D_GPIO_DS4		7
 #define EAP7660D_GPIO_DS5		2
 #define EAP7660D_GPIO_DS7		0
@@ -125,12 +127,12 @@ static struct gpio_led eap7660d_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button eap7660d_gpio_buttons[] __initdata = {
+static struct gpio_keys_button eap7660d_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = EAP7660D_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= EAP7660D_GPIO_SW1,
 		.active_low	= 1,
 	},
@@ -138,7 +140,7 @@ static struct gpio_button eap7660d_gpio_buttons[] __initdata = {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = EAP7660D_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= EAP7660D_GPIO_SW3,
 		.active_low	= 1,
 	}
@@ -158,9 +160,9 @@ static void __init eap7660d_setup(void)
 	ar71xx_add_device_m25p80(NULL);
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(eap7660d_leds_gpio),
 					eap7660d_leds_gpio);
-	ar71xx_add_device_gpio_buttons(-1, EAP7660D_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(eap7660d_gpio_buttons),
-					eap7660d_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, EAP7660D_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(eap7660d_gpio_keys),
+					 eap7660d_gpio_keys);
 	eap7660d_pci_init(boardconfig + EAP7660D_WMAC0_CALDATA_OFFSET,
 			boardconfig + EAP7660D_WMAC0_MAC_OFFSET,
 			boardconfig + EAP7660D_WMAC1_CALDATA_OFFSET,
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ja76pf.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ja76pf.c
index d39de3c4d..7d4467322 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ja76pf.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ja76pf.c
@@ -15,7 +15,8 @@
 #include "dev-usb.h"
 #include "dev-leds-gpio.h"
 
-#define JA76PF_BUTTONS_POLL_INTERVAL	20
+#define JA76PF_KEYS_POLL_INTERVAL	20	/* msecs */
+#define JA76PF_KEYS_DEBOUNCE_INTERVAL	(3 * JA76PF_KEYS_POLL_INTERVAL)
 
 #define JA76PF_GPIO_I2C_SCL		0
 #define JA76PF_GPIO_I2C_SDA		1
@@ -35,12 +36,12 @@ static struct gpio_led ja76pf_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button ja76pf_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ja76pf_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = JA76PF_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= JA76PF_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}
@@ -85,9 +86,9 @@ static void __init ja76pf_init(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ja76pf_leds_gpio),
 					ja76pf_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, JA76PF_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ja76pf_gpio_buttons),
-					ja76pf_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, JA76PF_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ja76pf_gpio_keys),
+					 ja76pf_gpio_keys);
 
 	ar71xx_add_device_usb();
 	pb42_pci_init();
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-jwap003.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-jwap003.c
index d62e9a000..f7215a133 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-jwap003.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-jwap003.c
@@ -15,17 +15,19 @@
 #include "dev-pb42-pci.h"
 #include "dev-usb.h"
 
-#define JWAP003_BUTTONS_POLL_INTERVAL	20
+#define JWAP003_KEYS_POLL_INTERVAL	20	/* msecs */
+#define JWAP003_KEYS_DEBOUNCE_INTERVAL	(3 * JWAP003_KEYS_POLL_INTERVAL)
+
 #define JWAP003_GPIO_WPS	11
 #define JWAP003_GPIO_I2C_SCL	0
 #define JWAP003_GPIO_I2C_SDA	1
 
-static struct gpio_button jwap003_gpio_buttons[] __initdata = {
+static struct gpio_keys_button jwap003_gpio_keys[] __initdata = {
 	{
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = JWAP003_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= JWAP003_GPIO_WPS,
 		.active_low	= 1,
 	}
@@ -71,9 +73,9 @@ static void __init jwap003_init(void)
 
 	ar71xx_add_device_usb();
 
-	ar71xx_add_device_gpio_buttons(-1, JWAP003_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(jwap003_gpio_buttons),
-					jwap003_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, JWAP003_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(jwap003_gpio_keys),
+					 jwap003_gpio_keys);
 
 	pb42_pci_init();
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w04nu.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w04nu.c
index 2f5d41618..54dbe35fc 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w04nu.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w04nu.c
@@ -32,7 +32,8 @@
 #define MZK_W04NU_GPIO_BTN_WPS		12
 #define MZK_W04NU_GPIO_BTN_RESET	21
 
-#define MZK_W04NU_BUTTONS_POLL_INTERVAL	20
+#define MZK_W04NU_KEYS_POLL_INTERVAL	20	/* msecs */
+#define MZK_W04NU_KEYS_DEBOUNCE_INTERVAL (3 * MZK_W04NU_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition mzk_w04nu_partitions[] = {
@@ -101,26 +102,26 @@ static struct gpio_led mzk_w04nu_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button mzk_w04nu_gpio_buttons[] __initdata = {
+static struct gpio_keys_button mzk_w04nu_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = MZK_W04NU_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W04NU_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = MZK_W04NU_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W04NU_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}, {
 		.desc		= "aprouter",
 		.type		= EV_KEY,
 		.code		= BTN_2,
-		.threshold	= 3,
+		.debounce_interval = MZK_W04NU_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W04NU_GPIO_BTN_APROUTER,
 		.active_low	= 0,
 	}
@@ -153,9 +154,9 @@ static void __init mzk_w04nu_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(mzk_w04nu_leds_gpio),
 					mzk_w04nu_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, MZK_W04NU_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(mzk_w04nu_gpio_buttons),
-					mzk_w04nu_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, MZK_W04NU_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(mzk_w04nu_gpio_keys),
+					 mzk_w04nu_gpio_keys);
 	ar71xx_add_device_usb();
 
 	ar9xxx_add_device_wmac(eeprom, NULL);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w300nh.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w300nh.c
index 03ffe5e68..27f1738cf 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w300nh.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-mzk-w300nh.c
@@ -31,7 +31,8 @@
 #define MZK_W300NH_GPIO_BTN_WPS		12
 #define MZK_W300NH_GPIO_BTN_RESET	21
 
-#define MZK_W04NU_BUTTONS_POLL_INTERVAL	20
+#define MZK_W300NH_KEYS_POLL_INTERVAL	20	/* msecs */
+#define MZK_W300NH_KEYS_DEBOUNCE_INTERVAL (3 * MZK_W300NH_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition mzk_w300nh_partitions[] = {
@@ -96,26 +97,26 @@ static struct gpio_led mzk_w300nh_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button mzk_w300nh_gpio_buttons[] __initdata = {
+static struct gpio_keys_button mzk_w300nh_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = MZK_W300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W300NH_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = MZK_W300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W300NH_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}, {
 		.desc		= "aprouter",
 		.type		= EV_KEY,
 		.code		= BTN_2,
-		.threshold	= 3,
+		.debounce_interval = MZK_W300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= MZK_W300NH_GPIO_BTN_APROUTER,
 		.active_low	= 0,
 	}
@@ -148,9 +149,9 @@ static void __init mzk_w300nh_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(mzk_w300nh_leds_gpio),
 					mzk_w300nh_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, MZK_W04NU_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(mzk_w300nh_gpio_buttons),
-					mzk_w300nh_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, MZK_W300NH_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(mzk_w300nh_gpio_keys),
+					 mzk_w300nh_gpio_keys);
 	ar9xxx_add_device_wmac(eeprom, NULL);
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-nbg460n.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-nbg460n.c
index 8f3b52084..7d8161811 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-nbg460n.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-nbg460n.c
@@ -38,7 +38,9 @@
 /* Buttons */
 #define NBG460N_GPIO_BTN_WPS		12
 #define NBG460N_GPIO_BTN_RESET		21
-#define NBG460N_BUTTONS_POLL_INTERVAL	20
+
+#define NBG460N_KEYS_POLL_INTERVAL	20	/* msecs */
+#define NBG460N_KEYS_DEBOUNCE_INTERVAL	(3 * NBG460N_KEYS_POLL_INTERVAL)
 
 /* RTC chip PCF8563 I2C interface */
 #define NBG460N_GPIO_PCF8563_SDA	8
@@ -114,19 +116,19 @@ static struct gpio_led nbg460n_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button nbg460n_gpio_buttons[] __initdata = {
+static struct gpio_keys_button nbg460n_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = NBG460N_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= NBG460N_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = NBG460N_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= NBG460N_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -214,9 +216,9 @@ static void __init nbg460n_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(nbg460n_leds_gpio),
 					nbg460n_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, NBG460N_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(nbg460n_gpio_buttons),
-					nbg460n_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, NBG460N_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(nbg460n_gpio_keys),
+					 nbg460n_gpio_keys);
 }
 
 MIPS_MACHINE(AR71XX_MACH_NBG460N, "NBG460N", "Zyxel NBG460N/550N/550NH",
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb42.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb42.c
index 2dbb75374..118a54e99 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb42.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb42.c
@@ -18,24 +18,25 @@
 #include "dev-pb42-pci.h"
 #include "dev-usb.h"
 
-#define PB42_BUTTONS_POLL_INTERVAL	20
+#define PB42_KEYS_POLL_INTERVAL		20	/* msecs */
+#define PB42_KEYS_DEBOUNCE_INTERVAL	(3 * PB42_KEYS_POLL_INTERVAL)
 
 #define PB42_GPIO_BTN_SW4	8
 #define PB42_GPIO_BTN_SW5	3
 
-static struct gpio_button pb42_gpio_buttons[] __initdata = {
+static struct gpio_keys_button pb42_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw4",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = PB42_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB42_GPIO_BTN_SW4,
 		.active_low	= 1,
 	}, {
 		.desc		= "sw5",
 		.type		= EV_KEY,
 		.code		= BTN_1,
-		.threshold	= 3,
+		.debounce_interval = PB42_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB42_GPIO_BTN_SW5,
 		.active_low	= 1,
 	}
@@ -63,9 +64,9 @@ static void __init pb42_init(void)
 	ar71xx_add_device_eth(0);
 	ar71xx_add_device_eth(1);
 
-	ar71xx_add_device_gpio_buttons(-1, PB42_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(pb42_gpio_buttons),
-					pb42_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, PB42_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(pb42_gpio_keys),
+					 pb42_gpio_keys);
 
 	pb42_pci_init();
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb44.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb44.c
index 219b832ee..59802d4b8 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb44.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb44.c
@@ -54,6 +54,9 @@
 #define PB44_GPIO_LED_JUMP1	(PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP1)
 #define PB44_GPIO_LED_JUMP2	(PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP2)
 
+#define PB44_KEYS_POLL_INTERVAL		20	/* msecs */
+#define PB44_KEYS_DEBOUNCE_INTERVAL	(3 * PB44_KEYS_POLL_INTERVAL)
+
 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
 	.sda_pin        = PB44_GPIO_I2C_SDA,
 	.scl_pin        = PB44_GPIO_I2C_SCL,
@@ -90,19 +93,19 @@ static struct gpio_led pb44_leds_gpio[] __initdata = {
 	},
 };
 
-static struct gpio_button pb44_gpio_buttons[] __initdata = {
+static struct gpio_keys_button pb44_gpio_keys[] __initdata = {
 	{
 		.desc		= "soft_reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB44_GPIO_SW_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "jumpstart",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB44_GPIO_SW_JUMP,
 		.active_low	= 1,
 	}
@@ -202,8 +205,9 @@ static void __init pb44_init(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
 					pb44_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(pb44_gpio_buttons),
-					pb44_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(pb44_gpio_keys),
+					 pb44_gpio_keys);
 }
 
 MIPS_MACHINE(AR71XX_MACH_PB44, "PB44", "Atheros PB44", pb44_init);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
index 83a1e66ce..4a05f5bdc 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
@@ -56,25 +56,25 @@ static struct flash_platform_data pb92_flash_data = {
 #endif
 };
 
-
-#define PB92_BUTTONS_POLL_INTERVAL	20
+#define PB92_KEYS_POLL_INTERVAL		20	/* msecs */
+#define PB92_KEYS_DEBOUNCE_INTERVAL	(3 * PB92_KEYS_POLL_INTERVAL)
 
 #define PB92_GPIO_BTN_SW4	8
 #define PB92_GPIO_BTN_SW5	3
 
-static struct gpio_button pb92_gpio_buttons[] __initdata = {
+static struct gpio_keys_button pb92_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw4",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = PB92_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB92_GPIO_BTN_SW4,
 		.active_low	= 1,
 	}, {
 		.desc		= "sw5",
 		.type		= EV_KEY,
 		.code		= BTN_1,
-		.threshold	= 3,
+		.debounce_interval = PB92_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= PB92_GPIO_BTN_SW5,
 		.active_low	= 1,
 	}
@@ -100,9 +100,9 @@ static void __init pb92_init(void)
 	ar71xx_add_device_eth(0);
 	ar71xx_add_device_eth(1);
 
-	ar71xx_add_device_gpio_buttons(-1, PB92_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(pb92_gpio_buttons),
-					pb92_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, PB92_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(pb92_gpio_keys),
+					 pb92_gpio_keys);
 
 	pb9x_pci_init();
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c
index 6c670fbd8..02fcaa47b 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c
@@ -38,7 +38,8 @@
 #define RB4XX_GPIO_CPLD_LED4	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED4)
 #define RB4XX_GPIO_CPLD_LED5	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED5)
 
-#define RB4XX_BUTTONS_POLL_INTERVAL	20
+#define RB4XX_KEYS_POLL_INTERVAL	20	/* msecs */
+#define RB4XX_KEYS_DEBOUNCE_INTERVAL	(3 * RB4XX_KEYS_POLL_INTERVAL)
 
 static struct gpio_led rb4xx_leds_gpio[] __initdata = {
 	{
@@ -68,12 +69,12 @@ static struct gpio_led rb4xx_leds_gpio[] __initdata = {
 	},
 };
 
-static struct gpio_button rb4xx_gpio_buttons[] __initdata = {
+static struct gpio_keys_button rb4xx_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset_switch",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = RB4XX_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= RB4XX_GPIO_RESET_SWITCH,
 		.active_low	= 1,
 	}
@@ -201,9 +202,9 @@ static void __init rb4xx_generic_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 					rb4xx_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(rb4xx_gpio_buttons),
-					rb4xx_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, RB4XX_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(rb4xx_gpio_keys),
+					 rb4xx_gpio_keys);
 
 	spi_register_board_info(rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
 	platform_device_register(&rb4xx_spi_device);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tew-632brp.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tew-632brp.c
index 9816f0336..14deb982b 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tew-632brp.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tew-632brp.c
@@ -28,7 +28,8 @@
 #define TEW_632BRP_GPIO_BTN_WPS		12
 #define TEW_632BRP_GPIO_BTN_RESET	21
 
-#define TEW_632BRP_BUTTONS_POLL_INTERVAL	20
+#define TEW_632BRP_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TEW_632BRP_KEYS_DEBOUNCE_INTERVAL (3 * TEW_632BRP_KEYS_POLL_INTERVAL)
 
 #define TEW_632BRP_CONFIG_ADDR	0x1f020000
 #define TEW_632BRP_CONFIG_SIZE	0x10000
@@ -88,18 +89,18 @@ static struct gpio_led tew_632brp_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tew_632brp_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tew_632brp_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TEW_632BRP_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TEW_632BRP_GPIO_BTN_RESET,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TEW_632BRP_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TEW_632BRP_GPIO_BTN_WPS,
 	}
 };
@@ -139,9 +140,9 @@ static void __init tew_632brp_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tew_632brp_leds_gpio),
 					tew_632brp_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TEW_632BRP_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tew_632brp_gpio_buttons),
-					tew_632brp_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TEW_632BRP_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tew_632brp_gpio_keys),
+					 tew_632brp_gpio_keys);
 
 	ar9xxx_add_device_wmac(eeprom, wlan_mac);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-mr3x20.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-mr3x20.c
index 8bf853b83..341f22907 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-mr3x20.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-mr3x20.c
@@ -31,7 +31,8 @@
 
 #define TL_MR3X20_GPIO_USB_POWER	6
 
-#define TL_MR3X20_BUTTONS_POLL_INTERVAL	20
+#define TL_MR3X20_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_MR3X20_KEYS_DEBOUNCE_INTERVAL (3 * TL_MR3X20_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_mr3x20_partitions[] = {
@@ -86,19 +87,19 @@ static struct gpio_led tl_mr3x20_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_mr3x20_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_mr3x20_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_MR3X20_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_MR3X20_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_MR3X20_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_MR3X20_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -118,9 +119,9 @@ static void __init tl_mr3x20_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_mr3x20_leds_gpio),
 					tl_mr3x20_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_MR3X20_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_mr3x20_gpio_buttons),
-					tl_mr3x20_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_MR3X20_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_mr3x20_gpio_keys),
+					 tl_mr3x20_gpio_keys);
 
 	ar71xx_eth1_data.has_ar7240_switch = 1;
 	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd-v2.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd-v2.c
index 72a8bd21f..7fb4d80ae 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd-v2.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd-v2.c
@@ -30,8 +30,9 @@
 #define TL_WA901ND_V2_GPIO_BTN_RESET		3
 #define TL_WA901ND_V2_GPIO_BTN_QSS		7
 
-#define TL_WA901ND_V2_BUTTONS_POLL_INTERVAL	20
-
+#define TL_WA901ND_V2_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WA901ND_V2_KEYS_DEBOUNCE_INTERVAL	\
+					(3 * TL_WA901ND_V2_KEYS_POLL_INTERVAL)
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wa901nd_v2_partitions[] = {
 	{
@@ -82,19 +83,19 @@ static struct gpio_led tl_wa901nd_v2_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wa901nd_v2_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wa901nd_v2_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_WA901ND_V2_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WA901ND_V2_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_WA901ND_V2_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WA901ND_V2_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -120,9 +121,9 @@ static void __init tl_wa901nd_v2_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_wa901nd_v2_leds_gpio),
 					tl_wa901nd_v2_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WA901ND_V2_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wa901nd_v2_gpio_buttons),
-					tl_wa901nd_v2_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WA901ND_V2_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wa901nd_v2_gpio_keys),
+					 tl_wa901nd_v2_gpio_keys);
 
         ar9xxx_add_device_wmac(eeprom, mac);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd.c
index 3193262c7..4a108feba 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wa901nd.c
@@ -27,7 +27,8 @@
 #define TL_WA901ND_GPIO_BTN_RESET	11
 #define TL_WA901ND_GPIO_BTN_QSS		12
 
-#define TL_WA901ND_BUTTONS_POLL_INTERVAL	20
+#define TL_WA901ND_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WA901ND_KEYS_DEBOUNCE_INTERVAL (3 * TL_WA901ND_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wa901nd_partitions[] = {
@@ -76,19 +77,19 @@ static struct gpio_led tl_wa901nd_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wa901nd_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wa901nd_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = TL_WA901ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WA901ND_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= BTN_1,
-		.threshold	= 3,
+		.debounce_interval = TL_WA901ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WA901ND_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -118,9 +119,9 @@ static void __init tl_wa901nd_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_wa901nd_leds_gpio),
 					tl_wa901nd_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WA901ND_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wa901nd_gpio_buttons),
-					tl_wa901nd_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WA901ND_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wa901nd_gpio_keys),
+					 tl_wa901nd_gpio_keys);
 
 	ap91_pci_init(ee, mac);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr1043nd.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr1043nd.c
index e4de9d50c..1cf016848 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr1043nd.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr1043nd.c
@@ -33,7 +33,8 @@
 #define TL_WR1043ND_GPIO_RTL8366_SDA	18
 #define TL_WR1043ND_GPIO_RTL8366_SCK	19
 
-#define TL_WR1043ND_BUTTONS_POLL_INTERVAL     20
+#define TL_WR1043ND_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WR1043ND_KEYS_DEBOUNCE_INTERVAL (3 * TL_WR1043ND_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wr1043nd_partitions[] = {
@@ -90,19 +91,19 @@ static struct gpio_led tl_wr1043nd_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wr1043nd_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wr1043nd_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_WR1043ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR1043ND_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_WR1043ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR1043ND_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -144,9 +145,9 @@ static void __init tl_wr1043nd_setup(void)
 
 	platform_device_register(&tl_wr1043nd_rtl8366rb_device);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WR1043ND_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wr1043nd_gpio_buttons),
-					tl_wr1043nd_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WR1043ND_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wr1043nd_gpio_keys),
+					 tl_wr1043nd_gpio_keys);
 
 	ar9xxx_add_device_wmac(eeprom, mac);
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr741nd.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr741nd.c
index 909327ac7..4732ab9cd 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr741nd.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr741nd.c
@@ -26,7 +26,8 @@
 #define TL_WR741ND_GPIO_BTN_RESET	11
 #define TL_WR741ND_GPIO_BTN_QSS		12
 
-#define TL_WR741ND_BUTTONS_POLL_INTERVAL	20
+#define TL_WR741ND_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WR741ND_KEYS_DEBOUNCE_INTERVAL (3 * TL_WR741ND_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wr741nd_partitions[] = {
@@ -75,19 +76,19 @@ static struct gpio_led tl_wr741nd_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wr741nd_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wr741nd_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_WR741ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR741ND_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_WR741ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR741ND_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -103,9 +104,9 @@ static void __init tl_wr741nd_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_wr741nd_leds_gpio),
 					tl_wr741nd_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WR741ND_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wr741nd_gpio_buttons),
-					tl_wr741nd_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WR741ND_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wr741nd_gpio_keys),
+					 tl_wr741nd_gpio_keys);
 
 	ar71xx_eth1_data.has_ar7240_switch = 1;
 	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c
index a9a59e5cf..b523b274f 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c
@@ -28,7 +28,9 @@
 #define TL_WR841ND_V1_GPIO_BTN_RESET	3
 #define TL_WR841ND_V1_GPIO_BTN_QSS	7
 
-#define TL_WR841ND_V1_BUTTONS_POLL_INTERVAL	20
+#define TL_WR841ND_V1_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WR841ND_V1_KEYS_DEBOUNCE_INTERVAL \
+				(3 * TL_WR841ND_V1_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wr841n_v1_partitions[] = {
@@ -79,19 +81,19 @@ static struct gpio_led tl_wr841n_v1_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wr841n_v1_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wr841n_v1_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_WR841ND_V1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR841ND_V1_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_WR841ND_V1_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR841ND_V1_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -131,9 +133,9 @@ static void __init tl_wr841n_v1_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_wr841n_v1_leds_gpio),
 					tl_wr841n_v1_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WR841ND_V1_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wr841n_v1_gpio_buttons),
-					tl_wr841n_v1_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WR841ND_V1_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wr841n_v1_gpio_keys),
+					 tl_wr841n_v1_gpio_keys);
 
 	pb42_pci_init();
 }
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr941nd.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr941nd.c
index c0085e573..04173ea26 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr941nd.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr941nd.c
@@ -29,7 +29,8 @@
 #define TL_WR941ND_GPIO_BTN_RESET	3
 #define TL_WR941ND_GPIO_BTN_QSS		7
 
-#define TL_WR941ND_BUTTONS_POLL_INTERVAL	20
+#define TL_WR941ND_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_WR941ND_KEYS_DEBOUNCE_INTERVAL (3 * TL_WR941ND_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition tl_wr941nd_partitions[] = {
@@ -84,19 +85,19 @@ static struct gpio_led tl_wr941nd_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button tl_wr941nd_gpio_buttons[] __initdata = {
+static struct gpio_keys_button tl_wr941nd_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = TL_WR941ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR941ND_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "qss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = TL_WR941ND_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= TL_WR941ND_GPIO_BTN_QSS,
 		.active_low	= 1,
 	}
@@ -136,9 +137,9 @@ static void __init tl_wr941nd_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_wr941nd_leds_gpio),
 					tl_wr941nd_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, TL_WR941ND_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(tl_wr941nd_gpio_buttons),
-					tl_wr941nd_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, TL_WR941ND_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_wr941nd_gpio_keys),
+					 tl_wr941nd_gpio_keys);
 	ar9xxx_add_device_wmac(eeprom, mac);
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ubnt.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ubnt.c
index 5db59319b..1cfcec38e 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ubnt.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ubnt.c
@@ -38,7 +38,8 @@
 #define UBNT_M_GPIO_LED_L4	7
 #define UBNT_M_GPIO_BTN_RESET	12
 
-#define UBNT_BUTTONS_POLL_INTERVAL	20
+#define UBNT_KEYS_POLL_INTERVAL		20	/* msecs */
+#define UBNT_KEYS_DEBOUNCE_INTERVAL	(3 * UBNT_KEYS_POLL_INTERVAL)
 
 static struct gpio_led ubnt_rs_leds_gpio[] __initdata = {
 	{
@@ -100,23 +101,23 @@ static struct gpio_led ubnt_m_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button ubnt_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ubnt_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw4",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = UBNT_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= UBNT_RS_GPIO_SW4,
 		.active_low	= 1,
 	}
 };
 
-static struct gpio_button ubnt_m_gpio_buttons[] __initdata = {
+static struct gpio_keys_button ubnt_m_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = UBNT_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= UBNT_M_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}
@@ -126,9 +127,9 @@ static void __init ubnt_generic_setup(void)
 {
 	ar71xx_add_device_m25p80(NULL);
 
-	ar71xx_add_device_gpio_buttons(-1, UBNT_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ubnt_gpio_buttons),
-					ubnt_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, UBNT_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ubnt_gpio_keys),
+					 ubnt_gpio_keys);
 
 	pb42_pci_init();
 }
@@ -260,9 +261,9 @@ static void __init ubnt_m_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ubnt_m_leds_gpio),
 					ubnt_m_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, UBNT_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(ubnt_m_gpio_buttons),
-					ubnt_m_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, UBNT_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(ubnt_m_gpio_keys),
+					 ubnt_m_gpio_keys);
 }
 
 static void __init ubnt_rocket_m_setup(void)
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
index f0b781955..15bc05535 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
@@ -38,7 +38,8 @@
 #define WNDR3700_GPIO_RTL8366_SDA	5
 #define WNDR3700_GPIO_RTL8366_SCK	7
 
-#define WNDR3700_BUTTONS_POLL_INTERVAL    20
+#define WNDR3700_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WNDR3700_KEYS_DEBOUNCE_INTERVAL (3 * WNDR3700_KEYS_POLL_INTERVAL)
 
 #define WNDR3700_ETH0_MAC_OFFSET	0
 #define WNDR3700_ETH1_MAC_OFFSET	0x6
@@ -179,26 +180,26 @@ static struct gpio_led wndr3700_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wndr3700_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wndr3700_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = WNDR3700_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WNDR3700_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = WNDR3700_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WNDR3700_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}, {
 		.desc		= "wifi",
 		.type		= EV_KEY,
 		.code		= BTN_2,
-		.threshold	= 3,
+		.debounce_interval = WNDR3700_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WNDR3700_GPIO_BTN_WIFI,
 		.active_low	= 1,
 	}
@@ -246,9 +247,9 @@ static void __init wndr3700_common_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wndr3700_leds_gpio),
 					wndr3700_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WNDR3700_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wndr3700_gpio_buttons),
-					wndr3700_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WNDR3700_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wndr3700_gpio_keys),
+					 wndr3700_gpio_keys);
 
 	platform_device_register(&wndr3700_rtl8366s_device);
 	platform_device_register_simple("wndr3700-led-usb", -1, NULL, 0);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wnr2000.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wnr2000.c
index 24cf477a1..1da20fafc 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wnr2000.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wnr2000.c
@@ -29,7 +29,8 @@
 #define WNR2000_GPIO_BTN_RESET		21
 #define WNR2000_GPIO_BTN_WPS		8
 
-#define WNR2000_BUTTONS_POLL_INTERVAL	20
+#define WNR2000_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WNR2000_KEYS_DEBOUNCE_INTERVAL	(3 * WNR2000_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition wnr2000_partitions[] = {
@@ -98,18 +99,18 @@ static struct gpio_led wnr2000_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wnr2000_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wnr2000_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = WNR2000_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WNR2000_GPIO_BTN_RESET,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = WNR2000_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WNR2000_GPIO_BTN_WPS,
 	}
 };
@@ -138,9 +139,9 @@ static void __init wnr2000_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wnr2000_leds_gpio),
 					wnr2000_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WNR2000_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wnr2000_gpio_buttons),
-					wnr2000_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WNR2000_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wnr2000_gpio_keys),
+					 wnr2000_gpio_keys);
 
 
 	ar9xxx_add_device_wmac(eeprom, NULL);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c
index 20e032441..d85f13e55 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c
@@ -30,7 +30,8 @@
 #define WP543_GPIO_LED_DIAG	7
 #define WP543_GPIO_SW4		8
 
-#define WP543_BUTTONS_POLL_INTERVAL	20
+#define WP543_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WP543_KEYS_DEBOUNCE_INTERVAL	(3 * WP543_KEYS_POLL_INTERVAL)
 
 static struct gpio_led wp543_leds_gpio[] __initdata = {
 	{
@@ -56,18 +57,18 @@ static struct gpio_led wp543_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wp543_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wp543_gpio_keys[] __initdata = {
 	{
 		.desc		= "sw6",
 		.type		= EV_KEY,
 		.code		= BTN_0,
-		.threshold	= 3,
+		.debounce_interval = WP543_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WP543_GPIO_SW6,
 	}, {
 		.desc		= "sw4",
 		.type		= EV_KEY,
 		.code		= BTN_1,
-		.threshold	= 3,
+		.debounce_interval = WP543_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WP543_GPIO_SW4,
 	}
 };
@@ -92,9 +93,9 @@ static void __init wp543_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wp543_leds_gpio),
 					wp543_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WP543_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wp543_gpio_buttons),
-					wp543_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WP543_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wp543_gpio_keys),
+					 wp543_gpio_keys);
 }
 
 MIPS_MACHINE(AR71XX_MACH_WP543, "WP543", "Compex WP543", wp543_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt160nl.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt160nl.c
index 72dece80a..799f9f796 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt160nl.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt160nl.c
@@ -30,7 +30,8 @@
 #define WRT160NL_GPIO_BTN_WPS		7
 #define WRT160NL_GPIO_BTN_RESET		21
 
-#define WRT160NL_BUTTONS_POLL_INTERVAL	20
+#define WRT160NL_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WRT160NL_KEYS_DEBOUNCE_INTERVAL	(3 * WRT160NL_KEYS_POLL_INTERVAL)
 
 #define WRT160NL_NVRAM_ADDR	0x1f7e0000
 #define WRT160NL_NVRAM_SIZE	0x10000
@@ -96,19 +97,19 @@ static struct gpio_led wrt160nl_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wrt160nl_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wrt160nl_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = WRT160NL_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WRT160NL_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wps",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = WRT160NL_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WRT160NL_GPIO_BTN_WPS,
 		.active_low	= 1,
 	}
@@ -150,9 +151,9 @@ static void __init wrt160nl_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wrt160nl_leds_gpio),
 					wrt160nl_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WRT160NL_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wrt160nl_gpio_buttons),
-					wrt160nl_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WRT160NL_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wrt160nl_gpio_keys),
+					 wrt160nl_gpio_keys);
 
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt400n.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt400n.c
index 35860260c..fd0e5de0e 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt400n.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wrt400n.c
@@ -29,7 +29,8 @@
 #define WRT400N_GPIO_BTN_RESET	8
 #define WRT400N_GPIO_BTN_WLSEC	3
 
-#define WRT400N_BUTTONS_POLL_INTERVAL	20
+#define WRT400N_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WRT400N_KEYS_DEBOUNE_INTERVAL	(3 * WRT400N_KEYS_POLL_INTERVAL)
 
 #define WRT400N_MAC_ADDR_OFFSET		0x120c
 #define WRT400N_CALDATA0_OFFSET		0x1000
@@ -110,19 +111,19 @@ static struct gpio_led wrt400n_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wrt400n_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wrt400n_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = WRT400N_KEYS_DEBOUNE_INTERVAL,
 		.gpio		= WRT400N_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "wlsec",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = WRT400N_KEYS_DEBOUNE_INTERVAL,
 		.gpio		= WRT400N_GPIO_BTN_WLSEC,
 		.active_low	= 1,
 	}
@@ -152,9 +153,9 @@ static void __init wrt400n_setup(void)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wrt400n_leds_gpio),
 					wrt400n_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WRT400N_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wrt400n_gpio_buttons),
-					wrt400n_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WRT400N_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wrt400n_gpio_keys),
+					 wrt400n_gpio_keys);
 
 	ap94_pci_init(art + WRT400N_CALDATA0_OFFSET, NULL,
 		      art + WRT400N_CALDATA1_OFFSET, NULL);
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
index 2806f3bf2..13a17db47 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
@@ -49,7 +49,8 @@
 #define WZRHPG300NH_GPIO_BTN_ROUTER_AUTO (WZRHPG300NH_GPIO_EXP_BASE + 6)
 #define WZRHPG300NH_GPIO_BTN_QOS_OFF	(WZRHPG300NH_GPIO_EXP_BASE + 7)
 
-#define WZRHPG300NH_BUTTONS_POLL_INTERVAL	20
+#define WZRHPG300NH_KEYS_POLL_INTERVAL	20	/* msecs */
+#define WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL (3 * WZRHPG300NH_KEYS_POLL_INTERVAL)
 
 #define WZRHPG300NH_MAC_OFFSET		0x20c
 
@@ -144,54 +145,54 @@ static struct gpio_led wzrhpg300nh_leds_gpio[] __initdata = {
 	}
 };
 
-static struct gpio_button wzrhpg300nh_gpio_buttons[] __initdata = {
+static struct gpio_keys_button wzrhpg300nh_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}, {
 		.desc		= "aoss",
 		.type		= EV_KEY,
 		.code		= KEY_WPS_BUTTON,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_AOSS,
 		.active_low	= 1,
 	}, {
 		.desc		= "usb",
 		.type		= EV_KEY,
 		.code		= BTN_2,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_USB,
 		.active_low	= 1,
 	}, {
 		.desc		= "qos_on",
 		.type		= EV_KEY,
 		.code		= BTN_3,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_QOS_ON,
 		.active_low	= 0,
 	}, {
 		.desc		= "qos_off",
 		.type		= EV_KEY,
 		.code		= BTN_4,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_QOS_OFF,
 		.active_low	= 0,
 	}, {
 		.desc		= "router_on",
 		.type		= EV_KEY,
 		.code		= BTN_5,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_ROUTER_ON,
 		.active_low	= 0,
 	}, {
 		.desc		= "router_auto",
 		.type		= EV_KEY,
 		.code		= BTN_6,
-		.threshold	= 3,
+		.debounce_interval = WZRHPG300NH_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= WZRHPG300NH_GPIO_BTN_ROUTER_AUTO,
 		.active_low	= 0,
 	}
@@ -283,9 +284,9 @@ static void __init wzrhpg30xnh_setup(bool hasrtl8366rb)
 	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(wzrhpg300nh_leds_gpio),
 					wzrhpg300nh_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, WZRHPG300NH_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(wzrhpg300nh_gpio_buttons),
-					wzrhpg300nh_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, WZRHPG300NH_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(wzrhpg300nh_gpio_keys),
+					 wzrhpg300nh_gpio_keys);
 
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-zcn-1523h.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-zcn-1523h.c
index c7be5c029..bfbb72621 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-zcn-1523h.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-zcn-1523h.c
@@ -34,7 +34,8 @@
 #define ZCN_1523H_5_GPIO_LED_MEDIUM	15
 #define ZCN_1523H_5_GPIO_LED_STRONG	16
 
-#define ZCN_1523H_BUTTONS_POLL_INTERVAL	20
+#define ZCN_1523H_KEYS_POLL_INTERVAL	20	/* msecs */
+#define ZCN_1523H_KEYS_DEBOUNCE_INTERVAL (3 * ZCN_1523H_KEYS_POLL_INTERVAL)
 
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition zcn_1523h_partitions[] = {
@@ -86,12 +87,12 @@ static struct flash_platform_data zcn_1523h_flash_data = {
 #endif
 };
 
-static struct gpio_button zcn_1523h_gpio_buttons[] __initdata = {
+static struct gpio_keys_button zcn_1523h_gpio_keys[] __initdata = {
 	{
 		.desc		= "reset",
 		.type		= EV_KEY,
 		.code		= KEY_RESTART,
-		.threshold	= 3,
+		.debounce_interval = ZCN_1523H_KEYS_DEBOUNCE_INTERVAL,
 		.gpio		= ZCN_1523H_GPIO_BTN_RESET,
 		.active_low	= 1,
 	}
@@ -164,9 +165,9 @@ static void __init zcn_1523h_generic_setup(void)
 	ar71xx_add_device_leds_gpio(0, ARRAY_SIZE(zcn_1523h_leds_gpio),
 					zcn_1523h_leds_gpio);
 
-	ar71xx_add_device_gpio_buttons(-1, ZCN_1523H_BUTTONS_POLL_INTERVAL,
-					ARRAY_SIZE(zcn_1523h_gpio_buttons),
-					zcn_1523h_gpio_buttons);
+	ar71xx_register_gpio_keys_polled(-1, ZCN_1523H_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(zcn_1523h_gpio_keys),
+					 zcn_1523h_gpio_keys);
 
 	ap91_pci_init(ee, mac);