gpio-button-hotplug: debounce the initial button state, the first reads at boot time...
authorFelix Fietkau <nbd@openwrt.org>
Mon, 5 Aug 2013 10:32:13 +0000 (10:32 +0000)
committerFelix Fietkau <nbd@openwrt.org>
Mon, 5 Aug 2013 10:32:13 +0000 (10:32 +0000)
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 37702

package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c

index 487c813..ea6f94b 100644 (file)
@@ -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);
        }