+static irqreturn_t fsl_dcu_drm_irq(int irq, void *arg)
+{
+ struct drm_device *dev = arg;
+ struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+ unsigned int int_status;
+ int ret;
+
+ ret = regmap_read(fsl_dev->regmap, DCU_INT_STATUS, &int_status);
+ if (ret) {
+ dev_err(dev->dev, "read DCU_INT_STATUS failed\n");
+ return IRQ_NONE;
+ }
+
+ if (int_status & DCU_INT_STATUS_VBLANK)
+ drm_handle_vblank(dev, 0);
+
+ regmap_write(fsl_dev->regmap, DCU_INT_STATUS, int_status);
+
+ return IRQ_HANDLED;
+}
+
+static int fsl_dcu_irq_install(struct drm_device *dev, unsigned int irq)
+{
+ if (irq == IRQ_NOTCONNECTED)
+ return -ENOTCONN;
+
+ fsl_dcu_irq_reset(dev);
+
+ return request_irq(irq, fsl_dcu_drm_irq, 0, dev->driver->name, dev);
+}
+
+static void fsl_dcu_irq_uninstall(struct drm_device *dev)
+{
+ struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+
+ fsl_dcu_irq_reset(dev);
+ free_irq(fsl_dev->irq, dev);
+}
+