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| author | Felix Fietkau <nbd@openwrt.org> | 2013-08-05 10:32:13 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2013-08-05 10:32:13 +0000 |
| commit | 6743f2625b854cd45d253e289844524c99584777 (patch) | |
| tree | d8f1c8b130eaa4b0b18408bb6f86a0d33b50b0bb | |
| parent | 158cc23d39dab3f0ddae876fd0a74a748e6b5251 (diff) | |
| download | mtk-20170518-6743f2625b854cd45d253e289844524c99584777.zip mtk-20170518-6743f2625b854cd45d253e289844524c99584777.tar.gz mtk-20170518-6743f2625b854cd45d253e289844524c99584777.tar.bz2 | |
gpio-button-hotplug: debounce the initial button state, the first reads at boot time might be wrong
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 37702
| -rw-r--r-- | package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c b/package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c index 487c813..ea6f94b 100644 --- a/package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c +++ b/package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c @@ -298,7 +298,9 @@ static void gpio_keys_polled_check_state(struct gpio_keys_button *button, return; } - button_hotplug_event(bdata, type, button->code, state); + if (bdata->last_state != -1) + button_hotplug_event(bdata, type, button->code, state); + bdata->last_state = state; } @@ -508,7 +510,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev) } bdata->can_sleep = gpio_cansleep(gpio); - bdata->last_state = gpio_button_get_value(button, bdata); + bdata->last_state = -1; bdata->threshold = DIV_ROUND_UP(button->debounce_interval, pdata->poll_interval); } |