static int pl111_modeset_init(struct drm_device *dev) { struct drm_mode_config *mode_config; struct pl111_drm_dev_private *priv = dev->dev_private; int ret = 0; drm_mode_config_init(dev); mode_config = &dev->mode_config; mode_config->funcs = &mode_config_funcs; mode_config->min_width = 1; mode_config->max_width = 1024; mode_config->min_height = 1; mode_config->max_height = 768; ret = pl111_connector_init(dev); if (ret) { dev_err(dev->dev, "Failed to create pl111_drm_connector\n"); goto out_config; } /* Don't actually attach if we didn't find a drm_panel * attached to us. This will allow a kernel to include both * the fbdev pl111 driver and this one, and choose between * them based on which subsystem has support for the panel. */ if (!priv->connector.panel) { dev_info(dev->dev, "Disabling due to lack of DRM panel device.\n"); ret = -ENODEV; goto out_config; } ret = pl111_display_init(dev); if (ret != 0) { dev_err(dev->dev, "Failed to init display\n"); goto out_config; } ret = drm_vblank_init(dev, 1); if (ret != 0) { dev_err(dev->dev, "Failed to init vblank\n"); goto out_config; } drm_mode_config_reset(dev); priv->fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_connector); drm_kms_helper_poll_init(dev); goto finish; out_config: drm_mode_config_cleanup(dev); finish: return ret; }
static int pl111_modeset_init(struct drm_device *dev) { struct drm_mode_config *mode_config; struct pl111_drm_dev_private *priv = dev->dev_private; struct drm_panel *panel; struct drm_bridge *bridge; int ret = 0; drm_mode_config_init(dev); mode_config = &dev->mode_config; mode_config->funcs = &mode_config_funcs; mode_config->min_width = 1; mode_config->max_width = 1024; mode_config->min_height = 1; mode_config->max_height = 768; ret = drm_of_find_panel_or_bridge(dev->dev->of_node, 0, 0, &panel, &bridge); if (ret && ret != -ENODEV) return ret; if (panel) { bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_Unknown); if (IS_ERR(bridge)) { ret = PTR_ERR(bridge); goto out_config; } /* * TODO: when we are using a different bridge than a panel * (such as a dumb VGA connector) we need to devise a different * method to get the connector out of the bridge. */ } ret = pl111_display_init(dev); if (ret != 0) { dev_err(dev->dev, "Failed to init display\n"); goto out_bridge; } ret = drm_simple_display_pipe_attach_bridge(&priv->pipe, bridge); if (ret) return ret; priv->bridge = bridge; priv->panel = panel; priv->connector = panel->connector; ret = drm_vblank_init(dev, 1); if (ret != 0) { dev_err(dev->dev, "Failed to init vblank\n"); goto out_bridge; } drm_mode_config_reset(dev); drm_fb_cma_fbdev_init(dev, 32, 0); drm_kms_helper_poll_init(dev); goto finish; out_bridge: if (panel) drm_panel_bridge_remove(bridge); out_config: drm_mode_config_cleanup(dev); finish: return ret; }