diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c index 345c8357b273..d3da87fbd85a 100644 --- a/drivers/gpu/drm/arm/hdlcd_drv.c +++ b/drivers/gpu/drm/arm/hdlcd_drv.c @@ -297,6 +297,9 @@ static int hdlcd_drm_bind(struct device *dev) if (ret) goto err_free; + /* Set the CRTC's port so that the encoder component can find it */ + hdlcd->crtc.port = of_graph_get_port_by_id(dev->of_node, 0); + ret = component_bind_all(dev, drm); if (ret) { DRM_ERROR("Failed to bind all components\n"); @@ -340,11 +343,14 @@ err_register: } err_fbdev: drm_kms_helper_poll_fini(drm); + drm_vblank_cleanup(drm); err_vblank: pm_runtime_disable(drm->dev); err_pm_active: component_unbind_all(dev, drm); err_unload: + of_node_put(hdlcd->crtc.port); + hdlcd->crtc.port = NULL; drm_irq_uninstall(drm); of_reserved_mem_device_release(drm->dev); err_free: @@ -367,6 +373,9 @@ static void hdlcd_drm_unbind(struct device *dev) } drm_kms_helper_poll_fini(drm); component_unbind_all(dev, drm); + of_node_put(hdlcd->crtc.port); + hdlcd->crtc.port = NULL; + drm_vblank_cleanup(drm); pm_runtime_get_sync(drm->dev); drm_irq_uninstall(drm); pm_runtime_put_sync(drm->dev);