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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>
This commit is contained in:
Shinya Kuribayashi 2013-10-29 17:57:30 +09:00 committed by Simon Horman
parent 79990c164d
commit c9fd77d48a
1 changed files with 2 additions and 1 deletions
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3
arch/arm/mach-shmobile/board-lager.c
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@ -120,7 +120,8 @@ static const struct gpio_led_platform_data lager_leds_pdata __initconst = {
/* GPIO KEY */
#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[] = {
GPIO_KEY(KEY_4, RCAR_GP_PIN(1, 28), "SW2-pin4"),