/**
 * load - setup chip and create an initial config
 * @dev: DRM device
 * @flags: startup flags
 *
 * The driver load routine has to do several things:
 *   - initialize the memory manager
 *   - allocate initial config memory
 *   - setup the DRM framebuffer with the allocated memory
 */
static int dev_load(struct drm_device *dev, unsigned long flags)
{
	struct omap_drm_platform_data *pdata = dev->dev->platform_data;
	struct omap_drm_private *priv;
	int ret;

	DBG("load: dev=%p", dev);

	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->omaprev = pdata->omaprev;

	dev->dev_private = priv;

	priv->wq = alloc_ordered_workqueue("omapdrm", 0);

	spin_lock_init(&priv->list_lock);
	INIT_LIST_HEAD(&priv->obj_list);

	omap_gem_init(dev);

	ret = omap_modeset_init(dev);
	if (ret) {
		dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
		dev->dev_private = NULL;
		kfree(priv);
		return ret;
	}

	ret = drm_vblank_init(dev, priv->num_crtcs);
	if (ret)
		dev_warn(dev->dev, "could not init vblank\n");

	priv->fbdev = omap_fbdev_init(dev);
	if (!priv->fbdev) {
		dev_warn(dev->dev, "omap_fbdev_init failed\n");
		/* well, limp along without an fbdev.. maybe X11 will work? */
	}

	/* store off drm_device for use in pm ops */
	dev_set_drvdata(dev->dev, dev);

	drm_kms_helper_poll_init(dev);

	return 0;
}
/**
 * load - setup chip and create an initial config
 * @dev: DRM device
 * @flags: startup flags
 *
 * The driver load routine has to do several things:
 *   - initialize the memory manager
 *   - allocate initial config memory
 *   - setup the DRM framebuffer with the allocated memory
 */
static int dev_load(struct drm_device *dev, unsigned long flags)
{
	struct omap_drm_private *priv;
	int ret;

	DBG("load: dev=%p", dev);

	drm_device = dev;

	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		dev_err(dev->dev, "could not allocate priv\n");
		return -ENOMEM;
	}

	dev->dev_private = priv;

	priv->wq = alloc_workqueue("omapdrm",
			WQ_UNBOUND | WQ_NON_REENTRANT, 1);

	INIT_LIST_HEAD(&priv->obj_list);

	omap_gem_init(dev);

	ret = omap_modeset_init(dev);
	if (ret) {
		dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
		dev->dev_private = NULL;
		kfree(priv);
		return ret;
	}

	priv->fbdev = omap_fbdev_init(dev);
	if (!priv->fbdev) {
		dev_warn(dev->dev, "omap_fbdev_init failed\n");
		/* well, limp along without an fbdev.. maybe X11 will work? */
	}

	drm_kms_helper_poll_init(dev);

	ret = drm_vblank_init(dev, priv->num_crtcs);
	if (ret) {
		dev_warn(dev->dev, "could not init vblank\n");
	}

	return 0;
}
示例#3
0
static int pdev_probe(struct platform_device *pdev)
{
	const struct soc_device_attribute *soc;
	struct omap_drm_private *priv;
	struct drm_device *ddev;
	unsigned int i;
	int ret;

	DBG("%s", pdev->name);

	if (omapdss_is_initialized() == false)
		return -EPROBE_DEFER;

	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
	if (ret) {
		dev_err(&pdev->dev, "Failed to set the DMA mask\n");
		return ret;
	}

	omap_crtc_pre_init();

	ret = omap_connect_dssdevs();
	if (ret)
		goto err_crtc_uninit;

	/* Allocate and initialize the driver private structure. */
	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		ret = -ENOMEM;
		goto err_disconnect_dssdevs;
	}

	priv->dispc_ops = dispc_get_ops();

	soc = soc_device_match(omapdrm_soc_devices);
	priv->omaprev = soc ? (unsigned int)soc->data : 0;
	priv->wq = alloc_ordered_workqueue("omapdrm", 0);

	spin_lock_init(&priv->list_lock);
	INIT_LIST_HEAD(&priv->obj_list);

	/* Allocate and initialize the DRM device. */
	ddev = drm_dev_alloc(&omap_drm_driver, &pdev->dev);
	if (IS_ERR(ddev)) {
		ret = PTR_ERR(ddev);
		goto err_free_priv;
	}

	ddev->dev_private = priv;
	platform_set_drvdata(pdev, ddev);

	/* Get memory bandwidth limits */
	if (priv->dispc_ops->get_memory_bandwidth_limit)
		priv->max_bandwidth =
				priv->dispc_ops->get_memory_bandwidth_limit();

	omap_gem_init(ddev);

	ret = omap_modeset_init(ddev);
	if (ret) {
		dev_err(&pdev->dev, "omap_modeset_init failed: ret=%d\n", ret);
		goto err_free_drm_dev;
	}

	/* Initialize vblank handling, start with all CRTCs disabled. */
	ret = drm_vblank_init(ddev, priv->num_crtcs);
	if (ret) {
		dev_err(&pdev->dev, "could not init vblank\n");
		goto err_cleanup_modeset;
	}

	for (i = 0; i < priv->num_crtcs; i++)
		drm_crtc_vblank_off(priv->crtcs[i]);

	priv->fbdev = omap_fbdev_init(ddev);

	drm_kms_helper_poll_init(ddev);
	omap_modeset_enable_external_hpd();

	/*
	 * Register the DRM device with the core and the connectors with
	 * sysfs.
	 */
	ret = drm_dev_register(ddev, 0);
	if (ret)
		goto err_cleanup_helpers;

	return 0;

err_cleanup_helpers:
	omap_modeset_disable_external_hpd();
	drm_kms_helper_poll_fini(ddev);
	if (priv->fbdev)
		omap_fbdev_free(ddev);
err_cleanup_modeset:
	drm_mode_config_cleanup(ddev);
	omap_drm_irq_uninstall(ddev);
err_free_drm_dev:
	omap_gem_deinit(ddev);
	drm_dev_unref(ddev);
err_free_priv:
	destroy_workqueue(priv->wq);
	kfree(priv);
err_disconnect_dssdevs:
	omap_disconnect_dssdevs();
err_crtc_uninit:
	omap_crtc_pre_uninit();
	return ret;
}