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 <log.h>
  8. #include <dm/lists.h>
  9. #include <dm/root.h>
  10. /**
  11. * The CAR exposes multiple different services. We create a sub-device for
  12. * each separate type of service, since each device must be of the appropriate
  13. * UCLASS.
  14. */
  15. static int tegra_car_bpmp_bind(struct udevice *dev)
  16. {
  17. int ret;
  18. struct udevice *child;
  19. debug("%s(dev=%p)\n", __func__, dev);
  20. ret = device_bind_driver_to_node(dev, "tegra_car_clk", "tegra_car_clk",
  21. dev_ofnode(dev), &child);
  22. if (ret)
  23. return ret;
  24. ret = device_bind_driver_to_node(dev, "tegra_car_reset",
  25. "tegra_car_reset", dev_ofnode(dev),
  26. &child);
  27. if (ret)
  28. return ret;
  29. return 0;
  30. }
  31. static int tegra_car_bpmp_probe(struct udevice *dev)
  32. {
  33. debug("%s(dev=%p)\n", __func__, dev);
  34. return 0;
  35. }
  36. static int tegra_car_bpmp_remove(struct udevice *dev)
  37. {
  38. debug("%s(dev=%p)\n", __func__, dev);
  39. return 0;
  40. }
  41. static const struct udevice_id tegra_car_bpmp_ids[] = {
  42. { .compatible = "nvidia,tegra20-car" },
  43. { .compatible = "nvidia,tegra30-car" },
  44. { .compatible = "nvidia,tegra114-car" },
  45. { .compatible = "nvidia,tegra124-car" },
  46. { .compatible = "nvidia,tegra210-car" },
  47. { }
  48. };
  49. U_BOOT_DRIVER(tegra_car_bpmp) = {
  50. .name = "tegra_car",
  51. .id = UCLASS_MISC,
  52. .of_match = tegra_car_bpmp_ids,
  53. .bind = tegra_car_bpmp_bind,
  54. .probe = tegra_car_bpmp_probe,
  55. .remove = tegra_car_bpmp_remove,
  56. };