tegra_car.c 1.4 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Copyright (c) 2016, NVIDIA CORPORATION.
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <dm/lists.h>
  8. #include <dm/root.h>
  9. /**
  10. * The CAR exposes multiple different services. We create a sub-device for
  11. * each separate type of service, since each device must be of the appropriate
  12. * UCLASS.
  13. */
  14. static int tegra_car_bpmp_bind(struct udevice *dev)
  15. {
  16. int ret;
  17. struct udevice *child;
  18. debug("%s(dev=%p)\n", __func__, dev);
  19. ret = device_bind_driver_to_node(dev, "tegra_car_clk", "tegra_car_clk",
  20. dev_ofnode(dev), &child);
  21. if (ret)
  22. return ret;
  23. ret = device_bind_driver_to_node(dev, "tegra_car_reset",
  24. "tegra_car_reset", dev_ofnode(dev),
  25. &child);
  26. if (ret)
  27. return ret;
  28. return 0;
  29. }
  30. static int tegra_car_bpmp_probe(struct udevice *dev)
  31. {
  32. debug("%s(dev=%p)\n", __func__, dev);
  33. return 0;
  34. }
  35. static int tegra_car_bpmp_remove(struct udevice *dev)
  36. {
  37. debug("%s(dev=%p)\n", __func__, dev);
  38. return 0;
  39. }
  40. static const struct udevice_id tegra_car_bpmp_ids[] = {
  41. { .compatible = "nvidia,tegra20-car" },
  42. { .compatible = "nvidia,tegra30-car" },
  43. { .compatible = "nvidia,tegra114-car" },
  44. { .compatible = "nvidia,tegra124-car" },
  45. { .compatible = "nvidia,tegra210-car" },
  46. { }
  47. };
  48. U_BOOT_DRIVER(tegra_car_bpmp) = {
  49. .name = "tegra_car",
  50. .id = UCLASS_MISC,
  51. .of_match = tegra_car_bpmp_ids,
  52. .bind = tegra_car_bpmp_bind,
  53. .probe = tegra_car_bpmp_probe,
  54. .remove = tegra_car_bpmp_remove,
  55. };