drm: omapdrm: Don't expose the omap_irq_(un)register() functions

The IRQ registration functions are not used outside of their compilation
unit, make them static. As the __omap_irq_(un)register() functions are
only called by their omap_irq_(un)register() counterparts, merge them
together.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/omap_drv.h

@@ -127,10 +127,6 @@ int omap_gem_resume(struct device *dev);
 
 int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe);
 void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe);
-void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
-void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
-void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
-void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
 void omap_drm_irq_uninstall(struct drm_device *dev);
 int omap_drm_irq_install(struct drm_device *dev);
 

drivers/gpu/drm/omapdrm/omap_irq.c

@@ -39,11 +39,12 @@ static void omap_irq_update(struct drm_device *dev)
 	dispc_read_irqenable();        /* flush posted write */
 }
 
-void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq)
+static void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq)
 {
 	struct omap_drm_private *priv = dev->dev_private;
 	unsigned long flags;
 
+	dispc_runtime_get();
 	spin_lock_irqsave(&list_lock, flags);
 
 	if (!WARN_ON(irq->registered)) {
@@ -53,21 +54,15 @@ void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq)
 	}
 
 	spin_unlock_irqrestore(&list_lock, flags);
-}
-
-void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq)
-{
-	dispc_runtime_get();
-
-	__omap_irq_register(dev, irq);
-
 	dispc_runtime_put();
 }
 
-void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq)
+static void omap_irq_unregister(struct drm_device *dev,
+				struct omap_drm_irq *irq)
 {
 	unsigned long flags;
 
+	dispc_runtime_get();
 	spin_lock_irqsave(&list_lock, flags);
 
 	if (!WARN_ON(!irq->registered)) {
@@ -77,14 +72,6 @@ void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq)
 	}
 
 	spin_unlock_irqrestore(&list_lock, flags);
-}
-
-void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq)
-{
-	dispc_runtime_get();
-
-	__omap_irq_unregister(dev, irq);
-
 	dispc_runtime_put();
 }