static int hva_remove(struct platform_device *pdev)
{
struct hva_dev *hva = platform_get_drvdata(pdev);
struct device *dev = hva_to_dev(hva);
hva_unregister_device(hva);
destroy_workqueue(hva->work_queue);
hva_hw_remove(hva);
v4l2_device_unregister(&hva->v4l2_dev);
dev_info(dev, "%s %s removed\n", HVA_PREFIX, pdev->name);
return 0;
}
static int hva_remove(struct platform_device *pdev)
{
struct hva_dev *hva = platform_get_drvdata(pdev);
struct device *dev = hva_to_dev(hva);
hva_unregister_device(hva);
destroy_workqueue(hva->work_queue);
hva_hw_remove(hva);
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS
hva_debugfs_remove(hva);
#endif
v4l2_device_unregister(&hva->v4l2_dev);
dev_info(dev, "%s %s removed\n", HVA_PREFIX, pdev->name);
return 0;
}
static int hva_probe(struct platform_device *pdev)
{
struct hva_dev *hva;
struct device *dev = &pdev->dev;
int ret;
hva = devm_kzalloc(dev, sizeof(*hva), GFP_KERNEL);
if (!hva) {
ret = -ENOMEM;
goto err;
}
hva->dev = dev;
hva->pdev = pdev;
platform_set_drvdata(pdev, hva);
mutex_init(&hva->lock);
/* probe hardware */
ret = hva_hw_probe(pdev, hva);
if (ret)
goto err;
/* register all available encoders */
register_encoders(hva);
/* register all supported formats */
register_formats(hva);
/* register on V4L2 */
ret = v4l2_device_register(dev, &hva->v4l2_dev);
if (ret) {
dev_err(dev, "%s %s failed to register V4L2 device\n",
HVA_PREFIX, HVA_NAME);
goto err_hw;
}
hva->work_queue = create_workqueue(HVA_NAME);
if (!hva->work_queue) {
dev_err(dev, "%s %s failed to allocate work queue\n",
HVA_PREFIX, HVA_NAME);
ret = -ENOMEM;
goto err_v4l2;
}
/* register device */
ret = hva_register_device(hva);
if (ret)
goto err_work_queue;
dev_info(dev, "%s %s registered as /dev/video%d\n", HVA_PREFIX,
HVA_NAME, hva->vdev->num);
return 0;
err_work_queue:
destroy_workqueue(hva->work_queue);
err_v4l2:
v4l2_device_unregister(&hva->v4l2_dev);
err_hw:
hva_hw_remove(hva);
err:
return ret;
}
