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| author | Simon Horman <horms+renesas@verge.net.au> | 2013-10-29 17:57:31 +0900 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-12-10 17:24:22 +0900 |
| commit | 478e2f9ca5ac9862a5cac0798814ba7d6a5de002 (patch) | |
| tree | d79d407f3510830bfc5f6d073b779bc8ba6af5b0 | |
| parent | c9fd77d48a72d4210c992c4ee27ef8217a44da03 (diff) | |
| download | linux-478e2f9ca5ac9862a5cac0798814ba7d6a5de002.tar.bz2 | |
ARM: shmobile: koelsch: 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.
Based on work for the lager board by Shinya Kuribayashi.
Cc: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| -rw-r--r-- | arch/arm/mach-shmobile/board-koelsch.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c index 59fa0b975473..5b81a343c5f9 100644 --- a/arch/arm/mach-shmobile/board-koelsch.c +++ b/arch/arm/mach-shmobile/board-koelsch.c @@ -56,7 +56,8 @@ static const struct gpio_led_platform_data koelsch_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(5, 3), "SW2-pin4"), |