Commit c9fd77d4 authored Oct 29, 2013 by Shinya Kuribayashi Committed by Simon Horman Dec 10, 2013

ARM: shmobile: lager: set .debounce_interval



In R-Car GPIO hardware block, 'chattering removal' feature can be
enabled on GPIO-n-[3:0] pins, but it's not supported on rest of pins
GPIO-n-[31:4].

Set an appropriate debounce interval, instead.  We could confirm that
spurious/unnecessary GPIO interrupts are prevented by this settings.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

parent 79990c16

arch/arm/mach-shmobile/board-lager.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -120,7 +120,8 @@ static const struct gpio_led_platform_data lager_leds_pdata __initconst = {

	/* GPIO KEY */		/* GPIO KEY */
	#define GPIO_KEY(c, g, d, ...) \		#define GPIO_KEY(c, g, d, ...) \
	{ .code = c, .gpio = g, .desc = d, .active_low = 1 }		{ .code = c, .gpio = g, .desc = d, .active_low = 1, \
			.debounce_interval = 20 }

	static struct gpio_keys_button gpio_buttons[] = {		static struct gpio_keys_button gpio_buttons[] = {
	GPIO_KEY(KEY_4, RCAR_GP_PIN(1, 28), "SW2-pin4"),		GPIO_KEY(KEY_4, RCAR_GP_PIN(1, 28), "SW2-pin4"),