platform.c (9d066a252786e1a18484a6283f82614d42a9f4ac) platform.c (44a7185c2ae6383c88ff5b1ef2e2969f35d7b8b7)
1/*
2 * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
3 * <benh@kernel.crashing.org>
4 * and Arnd Bergmann, IBM Corp.
5 * Merged from powerpc/kernel/of_platform.c and
6 * sparc{,64}/kernel/of_device.c by Stephen Rothwell
7 *
8 * This program is free software; you can redistribute it and/or

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358
359 /* Make sure it has a compatible property */
360 if (strict && (!of_get_property(bus, "compatible", NULL))) {
361 pr_debug("%s() - skipping %s, no compatible prop\n",
362 __func__, bus->full_name);
363 return 0;
364 }
365
1/*
2 * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
3 * <benh@kernel.crashing.org>
4 * and Arnd Bergmann, IBM Corp.
5 * Merged from powerpc/kernel/of_platform.c and
6 * sparc{,64}/kernel/of_device.c by Stephen Rothwell
7 *
8 * This program is free software; you can redistribute it and/or

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358
359 /* Make sure it has a compatible property */
360 if (strict && (!of_get_property(bus, "compatible", NULL))) {
361 pr_debug("%s() - skipping %s, no compatible prop\n",
362 __func__, bus->full_name);
363 return 0;
364 }
365
366 if (of_node_check_flag(bus, OF_POPULATED_BUS)) {
367 pr_debug("%s() - skipping %s, already populated\n",
368 __func__, bus->full_name);
369 return 0;
370 }
371
366 auxdata = of_dev_lookup(lookup, bus);
367 if (auxdata) {
368 bus_id = auxdata->name;
369 platform_data = auxdata->platform_data;
370 }
371
372 if (of_device_is_compatible(bus, "arm,primecell")) {
373 /*

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409{
410 struct device_node *child;
411 int rc = 0;
412
413 root = root ? of_node_get(root) : of_find_node_by_path("/");
414 if (!root)
415 return -EINVAL;
416
372 auxdata = of_dev_lookup(lookup, bus);
373 if (auxdata) {
374 bus_id = auxdata->name;
375 platform_data = auxdata->platform_data;
376 }
377
378 if (of_device_is_compatible(bus, "arm,primecell")) {
379 /*

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415{
416 struct device_node *child;
417 int rc = 0;
418
419 root = root ? of_node_get(root) : of_find_node_by_path("/");
420 if (!root)
421 return -EINVAL;
422
417 pr_debug("of_platform_bus_probe()\n");
423 pr_debug("%s()\n", __func__);
418 pr_debug(" starting at: %s\n", root->full_name);
419
420 /* Do a self check of bus type, if there's a match, create children */
421 if (of_match_node(matches, root)) {
422 rc = of_platform_bus_create(root, matches, NULL, parent, false);
423 } else for_each_child_of_node(root, child) {
424 if (!of_match_node(matches, child))
425 continue;

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461{
462 struct device_node *child;
463 int rc = 0;
464
465 root = root ? of_node_get(root) : of_find_node_by_path("/");
466 if (!root)
467 return -EINVAL;
468
424 pr_debug(" starting at: %s\n", root->full_name);
425
426 /* Do a self check of bus type, if there's a match, create children */
427 if (of_match_node(matches, root)) {
428 rc = of_platform_bus_create(root, matches, NULL, parent, false);
429 } else for_each_child_of_node(root, child) {
430 if (!of_match_node(matches, child))
431 continue;

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467{
468 struct device_node *child;
469 int rc = 0;
470
471 root = root ? of_node_get(root) : of_find_node_by_path("/");
472 if (!root)
473 return -EINVAL;
474
475 pr_debug("%s()\n", __func__);
476 pr_debug(" starting at: %s\n", root->full_name);
477
469 for_each_child_of_node(root, child) {
470 rc = of_platform_bus_create(child, matches, lookup, parent, true);
471 if (rc) {
472 of_node_put(child);
473 break;
474 }
475 }
476 of_node_set_flag(root, OF_POPULATED_BUS);

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484 const struct of_dev_auxdata *lookup,
485 struct device *parent)
486{
487 return of_platform_populate(root, of_default_bus_match_table, lookup,
488 parent);
489}
490EXPORT_SYMBOL_GPL(of_platform_default_populate);
491
478 for_each_child_of_node(root, child) {
479 rc = of_platform_bus_create(child, matches, lookup, parent, true);
480 if (rc) {
481 of_node_put(child);
482 break;
483 }
484 }
485 of_node_set_flag(root, OF_POPULATED_BUS);

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493 const struct of_dev_auxdata *lookup,
494 struct device *parent)
495{
496 return of_platform_populate(root, of_default_bus_match_table, lookup,
497 parent);
498}
499EXPORT_SYMBOL_GPL(of_platform_default_populate);
500
501static int __init of_platform_default_populate_init(void)
502{
503 if (of_have_populated_dt())
504 of_platform_default_populate(NULL, NULL, NULL);
505
506 return 0;
507}
508arch_initcall_sync(of_platform_default_populate_init);
509
492static int of_platform_device_destroy(struct device *dev, void *data)
493{
494 /* Do not touch devices not populated from the device tree */
495 if (!dev->of_node || !of_node_check_flag(dev->of_node, OF_POPULATED))
496 return 0;
497
498 /* Recurse for any nodes that were treated as busses */
499 if (of_node_check_flag(dev->of_node, OF_POPULATED_BUS))

--- 101 unchanged lines hidden --- 		510static int of_platform_device_destroy(struct device *dev, void *data)
511{
512 /* Do not touch devices not populated from the device tree */
513 if (!dev->of_node || !of_node_check_flag(dev->of_node, OF_POPULATED))
514 return 0;
515
516 /* Recurse for any nodes that were treated as busses */
517 if (of_node_check_flag(dev->of_node, OF_POPULATED_BUS))

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