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authorShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>2013-10-29 17:57:30 +0900
committerSimon Horman <horms+renesas@verge.net.au>2013-12-10 17:24:22 +0900
commitc9fd77d48a72d4210c992c4ee27ef8217a44da03 (patch)
tree034be0e33adf794bc4be0bcda484b64efa3f3444 /arch/arm
parent79990c164dcc7514398ca824a609c74cb5f563da (diff)
downloadblackbird-op-linux-c9fd77d48a72d4210c992c4ee27ef8217a44da03.tar.gz
blackbird-op-linux-c9fd77d48a72d4210c992c4ee27ef8217a44da03.zip
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-shmobile/board-lager.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 78a31b667988..fcf06fd9cfee 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -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"),
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