sandbox-reset-test.c 2.6 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 <malloc.h>
  9. #include <reset.h>
  10. #include <asm/io.h>
  11. #include <asm/reset.h>
  12. #include <linux/err.h>
  13. struct sandbox_reset_test {
  14. struct reset_ctl ctl;
  15. struct reset_ctl_bulk bulk;
  16. struct reset_ctl *ctlp;
  17. struct reset_ctl_bulk *bulkp;
  18. };
  19. int sandbox_reset_test_get(struct udevice *dev)
  20. {
  21. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  22. sbrt->ctlp = &sbrt->ctl;
  23. return reset_get_by_name(dev, "test", &sbrt->ctl);
  24. }
  25. int sandbox_reset_test_get_devm(struct udevice *dev)
  26. {
  27. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  28. struct reset_ctl *r;
  29. r = devm_reset_control_get(dev, "not-a-valid-reset-ctl");
  30. if (!IS_ERR(r))
  31. return -EINVAL;
  32. r = devm_reset_control_get_optional(dev, "not-a-valid-reset-ctl");
  33. if (r)
  34. return -EINVAL;
  35. sbrt->ctlp = devm_reset_control_get(dev, "test");
  36. if (IS_ERR(sbrt->ctlp))
  37. return PTR_ERR(sbrt->ctlp);
  38. return 0;
  39. }
  40. int sandbox_reset_test_get_bulk(struct udevice *dev)
  41. {
  42. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  43. sbrt->bulkp = &sbrt->bulk;
  44. return reset_get_bulk(dev, &sbrt->bulk);
  45. }
  46. int sandbox_reset_test_get_bulk_devm(struct udevice *dev)
  47. {
  48. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  49. struct reset_ctl_bulk *r;
  50. r = devm_reset_bulk_get_optional(dev);
  51. if (IS_ERR(r))
  52. return PTR_ERR(r);
  53. sbrt->bulkp = r;
  54. return 0;
  55. }
  56. int sandbox_reset_test_assert(struct udevice *dev)
  57. {
  58. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  59. return reset_assert(sbrt->ctlp);
  60. }
  61. int sandbox_reset_test_assert_bulk(struct udevice *dev)
  62. {
  63. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  64. return reset_assert_bulk(sbrt->bulkp);
  65. }
  66. int sandbox_reset_test_deassert(struct udevice *dev)
  67. {
  68. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  69. return reset_deassert(sbrt->ctlp);
  70. }
  71. int sandbox_reset_test_deassert_bulk(struct udevice *dev)
  72. {
  73. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  74. return reset_deassert_bulk(sbrt->bulkp);
  75. }
  76. int sandbox_reset_test_free(struct udevice *dev)
  77. {
  78. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  79. return reset_free(sbrt->ctlp);
  80. }
  81. int sandbox_reset_test_release_bulk(struct udevice *dev)
  82. {
  83. struct sandbox_reset_test *sbrt = dev_get_priv(dev);
  84. return reset_release_bulk(sbrt->bulkp);
  85. }
  86. static const struct udevice_id sandbox_reset_test_ids[] = {
  87. { .compatible = "sandbox,reset-ctl-test" },
  88. { }
  89. };
  90. U_BOOT_DRIVER(sandbox_reset_test) = {
  91. .name = "sandbox_reset_test",
  92. .id = UCLASS_MISC,
  93. .of_match = sandbox_reset_test_ids,
  94. .priv_auto_alloc_size = sizeof(struct sandbox_reset_test),
  95. };