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gpio-button-hotplug: debounce the initial button state, the first reads at boot time might be wrong

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37702 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Felix Fietkau
2013-08-05 10:32:13 +00:00
parent 662f4981cb
commit 1ddc303962
1 changed files with 4 additions and 2 deletions
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6
package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c
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@@ -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);
}