Input: Do not generate events from atkbd until keyboard is completely

       initialized. It should suppress messages about suprious NAKs
       when controller's timeout is longer than one in atkbd

drivers/input/keyboard/atkbd.c

@@ -188,6 +188,7 @@ struct atkbd {
 	unsigned int resend:1;
 	unsigned int release:1;
 	unsigned int bat_xl:1;
+	unsigned int enabled:1;
 
 	unsigned int last;
 	unsigned long time;
@@ -248,6 +249,9 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		goto out;
 	}
 
+	if (!atkbd->enabled)
+		goto out;
+
 	if (atkbd->translated) {
 
 		if (atkbd->emul ||
@@ -750,6 +754,8 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 		atkbd->id = 0xab00;
 	}
 
+	atkbd->enabled = 1;
+
 	if (atkbd->extra) {
 		atkbd->dev.ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC);
 		sprintf(atkbd->name, "AT Set 2 Extra keyboard");