drm: omapdrm: Remove unused parameter from omap_drm_irq handler

The only omap_drm_irq handler doesn't use the irqstatus parameter passed
to the function. Remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/omap_drv.h

@@ -58,7 +58,7 @@ struct omap_drm_irq {
 	struct list_head node;
 	uint32_t irqmask;
 	bool registered;
-	void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus);
+	void (*irq)(struct omap_drm_irq *irq);
 };
 
 /* For KMS code that needs to wait for a certain # of IRQs:

drivers/gpu/drm/omapdrm/omap_irq.c

@@ -82,7 +82,7 @@ struct omap_irq_wait {
 
 static DECLARE_WAIT_QUEUE_HEAD(wait_event);
 
-static void wait_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
+static void wait_irq(struct omap_drm_irq *irq)
 {
 	struct omap_irq_wait *wait =
 			container_of(irq, struct omap_irq_wait, irq);
@@ -248,7 +248,7 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
 	list_for_each_entry_safe(handler, n, &priv->irq_list, node) {
 		if (handler->irqmask & irqstatus) {
 			spin_unlock_irqrestore(&list_lock, flags);
-			handler->irq(handler, handler->irqmask & irqstatus);
+			handler->irq(handler);
 			spin_lock_irqsave(&list_lock, flags);
 		}
 	}