diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-08-05 10:32:13 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-08-05 10:32:13 +0000 |
| commit | 0c4be452a32c90e50c9300554801dfabb1bdc5bd (patch) | |
| tree | 3650c7a37e9bbb5e02f6c59124d5e8444d9830b4 | |
| parent | aeb80cb3a87426e9b71771e401380863c1620b70 (diff) | |
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>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37702 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -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 487c813dda..ea6f94ba43 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); } |