From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Horman Date: Tue, 29 Oct 2013 08:57:30 +0000 Subject: [PATCH 1/2] ARM: shmobile: lager: set .debounce_interval Message-Id: <1383037051-21427-2-git-send-email-horms+renesas@verge.net.au> List-Id: References: <1383037051-21427-1-git-send-email-horms+renesas@verge.net.au> In-Reply-To: <1383037051-21427-1-git-send-email-horms+renesas@verge.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org From: Shinya Kuribayashi 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 Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/board-lager.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c index 78a31b6..fcf06fd 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"), -- 1.8.4