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;
}
