C++ (Cpp) rcar_du_remove Examples

Example #1

File: rcar_du_drv.c Project: Anjali05/linux

static int rcar_du_probe(struct platform_device *pdev)
{
	struct rcar_du_device *rcdu;
	struct drm_device *ddev;
	struct resource *mem;
	int ret;

	/* Allocate and initialize the R-Car device structure. */
	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
	if (rcdu == NULL)
		return -ENOMEM;

	rcdu->dev = &pdev->dev;
	rcdu->info = of_device_get_match_data(rcdu->dev);

	platform_set_drvdata(pdev, rcdu);

	/* I/O resources */
	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
	if (IS_ERR(rcdu->mmio))
		return PTR_ERR(rcdu->mmio);

	/* DRM/KMS objects */
	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
	if (IS_ERR(ddev))
		return PTR_ERR(ddev);

	rcdu->ddev = ddev;
	ddev->dev_private = rcdu;

	ret = rcar_du_modeset_init(rcdu);
	if (ret < 0) {
		if (ret != -EPROBE_DEFER)
			dev_err(&pdev->dev,
				"failed to initialize DRM/KMS (%d)\n", ret);
		goto error;
	}

	ddev->irq_enabled = 1;

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

	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));

	drm_fbdev_generic_setup(ddev, 32);

	return 0;

error:
	rcar_du_remove(pdev);

	return ret;
}

Example #2

File: rcar_du_drv.c Project: AK101111/linux

static int rcar_du_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct rcar_du_device *rcdu;
	struct drm_device *ddev;
	struct resource *mem;
	int ret;

	if (np == NULL) {
		dev_err(&pdev->dev, "no device tree node\n");
		return -ENODEV;
	}

	/* Allocate and initialize the DRM and R-Car device structures. */
	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
	if (rcdu == NULL)
		return -ENOMEM;

	init_waitqueue_head(&rcdu->commit.wait);

	rcdu->dev = &pdev->dev;
	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;

	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
	if (!ddev)
		return -ENOMEM;

	rcdu->ddev = ddev;
	ddev->dev_private = rcdu;

	platform_set_drvdata(pdev, rcdu);

	/* I/O resources */
	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
	if (IS_ERR(rcdu->mmio)) {
		ret = PTR_ERR(rcdu->mmio);
		goto error;
	}

	/* Initialize vertical blanking interrupts handling. Start with vblank
	 * disabled for all CRTCs.
	 */
	ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
	if (ret < 0)
		goto error;

	/* DRM/KMS objects */
	ret = rcar_du_modeset_init(rcdu);
	if (ret < 0) {
		if (ret != -EPROBE_DEFER)
			dev_err(&pdev->dev,
				"failed to initialize DRM/KMS (%d)\n", ret);
		goto error;
	}

	ddev->irq_enabled = 1;

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

	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));

	return 0;

error:
	rcar_du_remove(pdev);

	return ret;
}