drm: Make irq_enabled bool

irq_enabled is only ever 0 or 1, so make it a bool.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_irq.c

@@ -293,7 +293,7 @@ int drm_irq_install(struct drm_device *dev)
 		mutex_unlock(&dev->struct_mutex);
 		return -EBUSY;
 	}
-	dev->irq_enabled = 1;
+	dev->irq_enabled = true;
 	mutex_unlock(&dev->struct_mutex);
 
 	DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));
@@ -316,7 +316,7 @@ int drm_irq_install(struct drm_device *dev)
 
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);
-		dev->irq_enabled = 0;
+		dev->irq_enabled = false;
 		mutex_unlock(&dev->struct_mutex);
 		return ret;
 	}
@@ -330,7 +330,7 @@ int drm_irq_install(struct drm_device *dev)
 
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);
-		dev->irq_enabled = 0;
+		dev->irq_enabled = false;
 		mutex_unlock(&dev->struct_mutex);
 		if (!drm_core_check_feature(dev, DRIVER_MODESET))
 			vga_client_register(dev->pdev, NULL, NULL, NULL);
@@ -351,14 +351,15 @@ EXPORT_SYMBOL(drm_irq_install);
 int drm_irq_uninstall(struct drm_device *dev)
 {
 	unsigned long irqflags;
-	int irq_enabled, i;
+	bool irq_enabled;
+	int i;
 
 	if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
 		return -EINVAL;
 
 	mutex_lock(&dev->struct_mutex);
 	irq_enabled = dev->irq_enabled;
-	dev->irq_enabled = 0;
+	dev->irq_enabled = false;
 	mutex_unlock(&dev->struct_mutex);
 
 	/*

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -716,13 +716,13 @@ static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
 {
 	/*
 	 * enable drm irq mode.
-	 * - with irq_enabled = 1, we can use the vblank feature.
+	 * - with irq_enabled = true, we can use the vblank feature.
 	 *
 	 * P.S. note that we wouldn't use drm irq handler but
 	 *	just specific driver own one instead because
 	 *	drm framework supports only one irq handler.
 	 */
-	drm_dev->irq_enabled = 1;
+	drm_dev->irq_enabled = true;
 
 	/*
 	 * with vblank_disable_allowed = true, vblank interrupt will be disabled

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -383,13 +383,13 @@ static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
 {
 	/*
 	 * enable drm irq mode.
-	 * - with irq_enabled = 1, we can use the vblank feature.
+	 * - with irq_enabled = true, we can use the vblank feature.
 	 *
 	 * P.S. note that we wouldn't use drm irq handler but
 	 *	just specific driver own one instead because
 	 *	drm framework supports only one irq handler.
 	 */
-	drm_dev->irq_enabled = 1;
+	drm_dev->irq_enabled = true;
 
 	/*
 	 * with vblank_disable_allowed = true, vblank interrupt will be disabled

drivers/gpu/drm/mga/mga_irq.c

@@ -169,5 +169,5 @@ void mga_driver_irq_uninstall(struct drm_device *dev)
 	/* Disable *all* interrupts */
 	MGA_WRITE(MGA_IEN, 0);
 
-	dev->irq_enabled = 0;
+	dev->irq_enabled = false;
 }

drivers/gpu/drm/omapdrm/omap_irq.c

@@ -261,7 +261,7 @@ int omap_drm_irq_install(struct drm_device *dev)
 		mutex_unlock(&dev->struct_mutex);
 		return -EBUSY;
 	}
-	dev->irq_enabled = 1;
+	dev->irq_enabled = true;
 	mutex_unlock(&dev->struct_mutex);
 
 	/* Before installing handler */
@@ -272,7 +272,7 @@ int omap_drm_irq_install(struct drm_device *dev)
 
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);
-		dev->irq_enabled = 0;
+		dev->irq_enabled = false;
 		mutex_unlock(&dev->struct_mutex);
 		return ret;
 	}
@@ -283,7 +283,7 @@ int omap_drm_irq_install(struct drm_device *dev)
 
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);
-		dev->irq_enabled = 0;
+		dev->irq_enabled = false;
 		mutex_unlock(&dev->struct_mutex);
 		dispc_free_irq(dev);
 	}
@@ -294,11 +294,12 @@ int omap_drm_irq_install(struct drm_device *dev)
 int omap_drm_irq_uninstall(struct drm_device *dev)
 {
 	unsigned long irqflags;
-	int irq_enabled, i;
+	bool irq_enabled;
+	int i;
 
 	mutex_lock(&dev->struct_mutex);
 	irq_enabled = dev->irq_enabled;
-	dev->irq_enabled = 0;
+	dev->irq_enabled = false;
 	mutex_unlock(&dev->struct_mutex);
 
 	/*

drivers/gpu/host1x/drm/drm.c

@@ -264,7 +264,7 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
 	 * core, so we need to set this manually in order to allow the
 	 * DRM_IOCTL_WAIT_VBLANK to operate correctly.
 	 */
-	drm->irq_enabled = 1;
+	drm->irq_enabled = true;
 
 	err = drm_vblank_init(drm, drm->mode_config.num_crtc);
 	if (err < 0)

drivers/staging/imx-drm/imx-drm-core.c

@@ -396,14 +396,14 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
 
 	/*
 	 * enable drm irq mode.
-	 * - with irq_enabled = 1, we can use the vblank feature.
+	 * - with irq_enabled = true, we can use the vblank feature.
 	 *
 	 * P.S. note that we wouldn't use drm irq handler but
 	 *      just specific driver own one instead because
 	 *      drm framework supports only one irq handler and
 	 *      drivers can well take care of their interrupts
 	 */
-	drm->irq_enabled = 1;
+	drm->irq_enabled = true;
 
 	drm_mode_config_init(drm);
 	imx_drm_mode_config_init(drm);

include/drm/drmP.h

@@ -1149,7 +1149,7 @@ struct drm_device {
 
 	/** \name Context support */
 	/*@{ */
-	int irq_enabled;		/**< True if irq handler is enabled */
+	bool irq_enabled;		/**< True if irq handler is enabled */
 	__volatile__ long context_flag;	/**< Context swapping flag */
 	int last_context;		/**< Last current context */
 	/*@} */