of_platdata.c 6.5 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. #include <common.h>
  3. #include <dm.h>
  4. #include <dt-structs.h>
  5. #include <dm/test.h>
  6. #include <test/test.h>
  7. #include <test/ut.h>
  8. /* Test that we can find a device using of-platdata */
  9. static int dm_test_of_platdata_base(struct unit_test_state *uts)
  10. {
  11. struct udevice *dev;
  12. ut_assertok(uclass_first_device_err(UCLASS_SERIAL, &dev));
  13. ut_asserteq_str("sandbox_serial", dev->name);
  14. return 0;
  15. }
  16. DM_TEST(dm_test_of_platdata_base, UT_TESTF_SCAN_PDATA);
  17. /* Test that we can read properties from a device */
  18. static int dm_test_of_platdata_props(struct unit_test_state *uts)
  19. {
  20. struct dtd_sandbox_spl_test *plat;
  21. struct udevice *dev;
  22. int i;
  23. /* Skip the clock */
  24. ut_assertok(uclass_first_device_err(UCLASS_MISC, &dev));
  25. ut_asserteq_str("sandbox_clk_test", dev->name);
  26. ut_assertok(uclass_next_device_err(&dev));
  27. plat = dev_get_platdata(dev);
  28. ut_assert(plat->boolval);
  29. ut_asserteq(1, plat->intval);
  30. ut_asserteq(4, ARRAY_SIZE(plat->intarray));
  31. ut_asserteq(2, plat->intarray[0]);
  32. ut_asserteq(3, plat->intarray[1]);
  33. ut_asserteq(4, plat->intarray[2]);
  34. ut_asserteq(0, plat->intarray[3]);
  35. ut_asserteq(5, plat->byteval);
  36. ut_asserteq(3, ARRAY_SIZE(plat->bytearray));
  37. ut_asserteq(6, plat->bytearray[0]);
  38. ut_asserteq(0, plat->bytearray[1]);
  39. ut_asserteq(0, plat->bytearray[2]);
  40. ut_asserteq(9, ARRAY_SIZE(plat->longbytearray));
  41. for (i = 0; i < ARRAY_SIZE(plat->longbytearray); i++)
  42. ut_asserteq(9 + i, plat->longbytearray[i]);
  43. ut_asserteq_str("message", plat->stringval);
  44. ut_asserteq(3, ARRAY_SIZE(plat->stringarray));
  45. ut_asserteq_str("multi-word", plat->stringarray[0]);
  46. ut_asserteq_str("message", plat->stringarray[1]);
  47. ut_asserteq_str("", plat->stringarray[2]);
  48. ut_assertok(uclass_next_device_err(&dev));
  49. plat = dev_get_platdata(dev);
  50. ut_assert(!plat->boolval);
  51. ut_asserteq(3, plat->intval);
  52. ut_asserteq(5, plat->intarray[0]);
  53. ut_asserteq(0, plat->intarray[1]);
  54. ut_asserteq(0, plat->intarray[2]);
  55. ut_asserteq(0, plat->intarray[3]);
  56. ut_asserteq(8, plat->byteval);
  57. ut_asserteq(3, ARRAY_SIZE(plat->bytearray));
  58. ut_asserteq(1, plat->bytearray[0]);
  59. ut_asserteq(0x23, plat->bytearray[1]);
  60. ut_asserteq(0x34, plat->bytearray[2]);
  61. for (i = 0; i < ARRAY_SIZE(plat->longbytearray); i++)
  62. ut_asserteq(i < 4 ? 9 + i : 0, plat->longbytearray[i]);
  63. ut_asserteq_str("message2", plat->stringval);
  64. ut_asserteq_str("another", plat->stringarray[0]);
  65. ut_asserteq_str("multi-word", plat->stringarray[1]);
  66. ut_asserteq_str("message", plat->stringarray[2]);
  67. ut_assertok(uclass_next_device_err(&dev));
  68. plat = dev_get_platdata(dev);
  69. ut_assert(!plat->boolval);
  70. ut_asserteq_str("one", plat->stringarray[0]);
  71. ut_asserteq_str("", plat->stringarray[1]);
  72. ut_asserteq_str("", plat->stringarray[2]);
  73. ut_assertok(uclass_next_device_err(&dev));
  74. plat = dev_get_platdata(dev);
  75. ut_assert(!plat->boolval);
  76. ut_asserteq_str("spl", plat->stringarray[0]);
  77. ut_asserteq(-ENODEV, uclass_next_device_err(&dev));
  78. return 0;
  79. }
  80. DM_TEST(dm_test_of_platdata_props, UT_TESTF_SCAN_PDATA);
  81. /*
  82. * find_driver_info - recursively find the driver_info for a device
  83. *
  84. * This sets found[idx] to true when it finds the driver_info record for a
  85. * device, where idx is the index in the driver_info linker list.
  86. *
  87. * @uts: Test state
  88. * @parent: Parent to search
  89. * @found: bool array to update
  90. * @return 0 if OK, non-zero on error
  91. */
  92. static int find_driver_info(struct unit_test_state *uts, struct udevice *parent,
  93. bool found[])
  94. {
  95. struct udevice *dev;
  96. /* If not the root device, find the entry that caused it to be bound */
  97. if (parent->parent) {
  98. const int n_ents =
  99. ll_entry_count(struct driver_info, driver_info);
  100. int idx = -1;
  101. int i;
  102. for (i = 0; i < n_ents; i++) {
  103. const struct driver_rt *drt = gd_dm_driver_rt() + i;
  104. if (drt->dev == parent) {
  105. idx = i;
  106. found[idx] = true;
  107. break;
  108. }
  109. }
  110. ut_assert(idx != -1);
  111. }
  112. device_foreach_child(dev, parent) {
  113. int ret;
  114. ret = find_driver_info(uts, dev, found);
  115. if (ret < 0)
  116. return ret;
  117. }
  118. return 0;
  119. }
  120. /* Check that every device is recorded in its driver_info struct */
  121. static int dm_test_of_platdata_dev(struct unit_test_state *uts)
  122. {
  123. const struct driver_info *info =
  124. ll_entry_start(struct driver_info, driver_info);
  125. const int n_ents = ll_entry_count(struct driver_info, driver_info);
  126. bool found[n_ents];
  127. uint i;
  128. /* Record the indexes that are found */
  129. memset(found, '\0', sizeof(found));
  130. ut_assertok(find_driver_info(uts, gd->dm_root, found));
  131. /* Make sure that the driver entries without devices have no ->dev */
  132. for (i = 0; i < n_ents; i++) {
  133. const struct driver_rt *drt = gd_dm_driver_rt() + i;
  134. const struct driver_info *entry = info + i;
  135. struct udevice *dev;
  136. if (found[i]) {
  137. /* Make sure we can find it */
  138. ut_assertnonnull(drt->dev);
  139. ut_assertok(device_get_by_driver_info(entry, &dev));
  140. ut_asserteq_ptr(dev, drt->dev);
  141. } else {
  142. ut_assertnull(drt->dev);
  143. ut_asserteq(-ENOENT,
  144. device_get_by_driver_info(entry, &dev));
  145. }
  146. }
  147. return 0;
  148. }
  149. DM_TEST(dm_test_of_platdata_dev, UT_TESTF_SCAN_PDATA);
  150. /* Test handling of phandles that point to other devices */
  151. static int dm_test_of_platdata_phandle(struct unit_test_state *uts)
  152. {
  153. struct dtd_sandbox_clk_test *plat;
  154. struct udevice *dev, *clk;
  155. ut_assertok(uclass_first_device_err(UCLASS_MISC, &dev));
  156. ut_asserteq_str("sandbox_clk_test", dev->name);
  157. plat = dev_get_platdata(dev);
  158. ut_assertok(device_get_by_driver_info_idx(plat->clocks[0].idx, &clk));
  159. ut_asserteq_str("fixed_clock", clk->name);
  160. ut_assertok(device_get_by_driver_info_idx(plat->clocks[1].idx, &clk));
  161. ut_asserteq_str("sandbox_clk", clk->name);
  162. ut_asserteq(1, plat->clocks[1].arg[0]);
  163. ut_assertok(device_get_by_driver_info_idx(plat->clocks[2].idx, &clk));
  164. ut_asserteq_str("sandbox_clk", clk->name);
  165. ut_asserteq(0, plat->clocks[2].arg[0]);
  166. ut_assertok(device_get_by_driver_info_idx(plat->clocks[3].idx, &clk));
  167. ut_asserteq_str("sandbox_clk", clk->name);
  168. ut_asserteq(3, plat->clocks[3].arg[0]);
  169. ut_assertok(device_get_by_driver_info_idx(plat->clocks[4].idx, &clk));
  170. ut_asserteq_str("sandbox_clk", clk->name);
  171. ut_asserteq(2, plat->clocks[4].arg[0]);
  172. return 0;
  173. }
  174. DM_TEST(dm_test_of_platdata_phandle, UT_TESTF_SCAN_PDATA);
  175. #if CONFIG_IS_ENABLED(OF_PLATDATA_PARENT)
  176. /* Test that device parents are correctly set up */
  177. static int dm_test_of_platdata_parent(struct unit_test_state *uts)
  178. {
  179. struct udevice *rtc, *i2c;
  180. ut_assertok(uclass_first_device_err(UCLASS_RTC, &rtc));
  181. ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
  182. ut_asserteq_ptr(i2c, dev_get_parent(rtc));
  183. return 0;
  184. }
  185. DM_TEST(dm_test_of_platdata_parent, UT_TESTF_SCAN_PDATA);
  186. #endif