Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
53a42093 GL |
2 | /* |
3 | * Self tests for device tree subsystem | |
4 | */ | |
5 | ||
cabb7d5b | 6 | #define pr_fmt(fmt) "### dt-test ### " fmt |
53a42093 | 7 | |
0fa1c579 | 8 | #include <linux/bootmem.h> |
53a42093 GL |
9 | #include <linux/clk.h> |
10 | #include <linux/err.h> | |
11 | #include <linux/errno.h> | |
841ec213 | 12 | #include <linux/hashtable.h> |
81d0848f | 13 | #include <linux/libfdt.h> |
53a42093 | 14 | #include <linux/of.h> |
ae9304c9 | 15 | #include <linux/of_fdt.h> |
a9f10ca7 | 16 | #include <linux/of_irq.h> |
82c0f589 | 17 | #include <linux/of_platform.h> |
53a42093 GL |
18 | #include <linux/list.h> |
19 | #include <linux/mutex.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/device.h> | |
177d271c | 22 | #include <linux/platform_device.h> |
53a42093 | 23 | |
d5e75500 PA |
24 | #include <linux/i2c.h> |
25 | #include <linux/i2c-mux.h> | |
26 | ||
492a22ac PA |
27 | #include <linux/bitops.h> |
28 | ||
69843396 PA |
29 | #include "of_private.h" |
30 | ||
9697a559 | 31 | static struct unittest_results { |
a9f10ca7 GL |
32 | int passed; |
33 | int failed; | |
9697a559 | 34 | } unittest_results; |
a9f10ca7 | 35 | |
9697a559 | 36 | #define unittest(result, fmt, ...) ({ \ |
851da976 GL |
37 | bool failed = !(result); \ |
38 | if (failed) { \ | |
9697a559 | 39 | unittest_results.failed++; \ |
a9f10ca7 | 40 | pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \ |
cabb7d5b | 41 | } else { \ |
9697a559 | 42 | unittest_results.passed++; \ |
a9f10ca7 | 43 | pr_debug("pass %s():%i\n", __func__, __LINE__); \ |
cabb7d5b | 44 | } \ |
851da976 GL |
45 | failed; \ |
46 | }) | |
53a42093 | 47 | |
9697a559 | 48 | static void __init of_unittest_find_node_by_name(void) |
ae91ff72 GL |
49 | { |
50 | struct device_node *np; | |
0d638a07 | 51 | const char *options, *name; |
ae91ff72 GL |
52 | |
53 | np = of_find_node_by_path("/testcase-data"); | |
0d638a07 RH |
54 | name = kasprintf(GFP_KERNEL, "%pOF", np); |
55 | unittest(np && !strcmp("/testcase-data", name), | |
ae91ff72 GL |
56 | "find /testcase-data failed\n"); |
57 | of_node_put(np); | |
0d638a07 | 58 | kfree(name); |
ae91ff72 GL |
59 | |
60 | /* Test if trailing '/' works */ | |
61 | np = of_find_node_by_path("/testcase-data/"); | |
9697a559 | 62 | unittest(!np, "trailing '/' on /testcase-data/ should fail\n"); |
ae91ff72 GL |
63 | |
64 | np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); | |
0d638a07 RH |
65 | name = kasprintf(GFP_KERNEL, "%pOF", np); |
66 | unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name), | |
ae91ff72 GL |
67 | "find /testcase-data/phandle-tests/consumer-a failed\n"); |
68 | of_node_put(np); | |
0d638a07 | 69 | kfree(name); |
ae91ff72 GL |
70 | |
71 | np = of_find_node_by_path("testcase-alias"); | |
0d638a07 RH |
72 | name = kasprintf(GFP_KERNEL, "%pOF", np); |
73 | unittest(np && !strcmp("/testcase-data", name), | |
ae91ff72 GL |
74 | "find testcase-alias failed\n"); |
75 | of_node_put(np); | |
0d638a07 | 76 | kfree(name); |
ae91ff72 GL |
77 | |
78 | /* Test if trailing '/' works on aliases */ | |
79 | np = of_find_node_by_path("testcase-alias/"); | |
9697a559 | 80 | unittest(!np, "trailing '/' on testcase-alias/ should fail\n"); |
ae91ff72 GL |
81 | |
82 | np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a"); | |
0d638a07 RH |
83 | name = kasprintf(GFP_KERNEL, "%pOF", np); |
84 | unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name), | |
ae91ff72 GL |
85 | "find testcase-alias/phandle-tests/consumer-a failed\n"); |
86 | of_node_put(np); | |
0d638a07 | 87 | kfree(name); |
ae91ff72 GL |
88 | |
89 | np = of_find_node_by_path("/testcase-data/missing-path"); | |
0d638a07 | 90 | unittest(!np, "non-existent path returned node %pOF\n", np); |
ae91ff72 GL |
91 | of_node_put(np); |
92 | ||
93 | np = of_find_node_by_path("missing-alias"); | |
0d638a07 | 94 | unittest(!np, "non-existent alias returned node %pOF\n", np); |
ae91ff72 GL |
95 | of_node_put(np); |
96 | ||
97 | np = of_find_node_by_path("testcase-alias/missing-path"); | |
0d638a07 | 98 | unittest(!np, "non-existent alias with relative path returned node %pOF\n", np); |
ae91ff72 | 99 | of_node_put(np); |
75c28c09 LL |
100 | |
101 | np = of_find_node_opts_by_path("/testcase-data:testoption", &options); | |
9697a559 | 102 | unittest(np && !strcmp("testoption", options), |
75c28c09 LL |
103 | "option path test failed\n"); |
104 | of_node_put(np); | |
105 | ||
8cbba1ab | 106 | np = of_find_node_opts_by_path("/testcase-data:test/option", &options); |
9697a559 | 107 | unittest(np && !strcmp("test/option", options), |
8cbba1ab PH |
108 | "option path test, subcase #1 failed\n"); |
109 | of_node_put(np); | |
110 | ||
5ca1b0dd | 111 | np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options); |
9697a559 | 112 | unittest(np && !strcmp("test/option", options), |
5ca1b0dd BN |
113 | "option path test, subcase #2 failed\n"); |
114 | of_node_put(np); | |
115 | ||
75c28c09 | 116 | np = of_find_node_opts_by_path("/testcase-data:testoption", NULL); |
9697a559 | 117 | unittest(np, "NULL option path test failed\n"); |
75c28c09 LL |
118 | of_node_put(np); |
119 | ||
120 | np = of_find_node_opts_by_path("testcase-alias:testaliasoption", | |
121 | &options); | |
9697a559 | 122 | unittest(np && !strcmp("testaliasoption", options), |
75c28c09 LL |
123 | "option alias path test failed\n"); |
124 | of_node_put(np); | |
125 | ||
8cbba1ab PH |
126 | np = of_find_node_opts_by_path("testcase-alias:test/alias/option", |
127 | &options); | |
9697a559 | 128 | unittest(np && !strcmp("test/alias/option", options), |
8cbba1ab PH |
129 | "option alias path test, subcase #1 failed\n"); |
130 | of_node_put(np); | |
131 | ||
75c28c09 | 132 | np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL); |
9697a559 | 133 | unittest(np, "NULL option alias path test failed\n"); |
75c28c09 LL |
134 | of_node_put(np); |
135 | ||
136 | options = "testoption"; | |
137 | np = of_find_node_opts_by_path("testcase-alias", &options); | |
9697a559 | 138 | unittest(np && !options, "option clearing test failed\n"); |
75c28c09 LL |
139 | of_node_put(np); |
140 | ||
141 | options = "testoption"; | |
142 | np = of_find_node_opts_by_path("/", &options); | |
9697a559 | 143 | unittest(np && !options, "option clearing root node test failed\n"); |
75c28c09 | 144 | of_node_put(np); |
ae91ff72 GL |
145 | } |
146 | ||
9697a559 | 147 | static void __init of_unittest_dynamic(void) |
7e66c5c7 GL |
148 | { |
149 | struct device_node *np; | |
150 | struct property *prop; | |
151 | ||
152 | np = of_find_node_by_path("/testcase-data"); | |
153 | if (!np) { | |
154 | pr_err("missing testcase data\n"); | |
155 | return; | |
156 | } | |
157 | ||
158 | /* Array of 4 properties for the purpose of testing */ | |
6396bb22 | 159 | prop = kcalloc(4, sizeof(*prop), GFP_KERNEL); |
7e66c5c7 | 160 | if (!prop) { |
9697a559 | 161 | unittest(0, "kzalloc() failed\n"); |
7e66c5c7 GL |
162 | return; |
163 | } | |
164 | ||
165 | /* Add a new property - should pass*/ | |
166 | prop->name = "new-property"; | |
167 | prop->value = "new-property-data"; | |
3b9cf790 | 168 | prop->length = strlen(prop->value) + 1; |
9697a559 | 169 | unittest(of_add_property(np, prop) == 0, "Adding a new property failed\n"); |
7e66c5c7 GL |
170 | |
171 | /* Try to add an existing property - should fail */ | |
172 | prop++; | |
173 | prop->name = "new-property"; | |
174 | prop->value = "new-property-data-should-fail"; | |
3b9cf790 | 175 | prop->length = strlen(prop->value) + 1; |
9697a559 | 176 | unittest(of_add_property(np, prop) != 0, |
7e66c5c7 GL |
177 | "Adding an existing property should have failed\n"); |
178 | ||
179 | /* Try to modify an existing property - should pass */ | |
180 | prop->value = "modify-property-data-should-pass"; | |
3b9cf790 | 181 | prop->length = strlen(prop->value) + 1; |
9697a559 | 182 | unittest(of_update_property(np, prop) == 0, |
7e66c5c7 GL |
183 | "Updating an existing property should have passed\n"); |
184 | ||
185 | /* Try to modify non-existent property - should pass*/ | |
186 | prop++; | |
187 | prop->name = "modify-property"; | |
188 | prop->value = "modify-missing-property-data-should-pass"; | |
3b9cf790 | 189 | prop->length = strlen(prop->value) + 1; |
9697a559 | 190 | unittest(of_update_property(np, prop) == 0, |
7e66c5c7 GL |
191 | "Updating a missing property should have passed\n"); |
192 | ||
193 | /* Remove property - should pass */ | |
9697a559 | 194 | unittest(of_remove_property(np, prop) == 0, |
7e66c5c7 GL |
195 | "Removing a property should have passed\n"); |
196 | ||
197 | /* Adding very large property - should pass */ | |
198 | prop++; | |
199 | prop->name = "large-property-PAGE_SIZEx8"; | |
200 | prop->length = PAGE_SIZE * 8; | |
201 | prop->value = kzalloc(prop->length, GFP_KERNEL); | |
9697a559 | 202 | unittest(prop->value != NULL, "Unable to allocate large buffer\n"); |
7e66c5c7 | 203 | if (prop->value) |
9697a559 | 204 | unittest(of_add_property(np, prop) == 0, |
7e66c5c7 GL |
205 | "Adding a large property should have passed\n"); |
206 | } | |
207 | ||
9697a559 | 208 | static int __init of_unittest_check_node_linkage(struct device_node *np) |
f2051d6a | 209 | { |
5063e25a | 210 | struct device_node *child; |
f2051d6a GL |
211 | int count = 0, rc; |
212 | ||
213 | for_each_child_of_node(np, child) { | |
214 | if (child->parent != np) { | |
215 | pr_err("Child node %s links to wrong parent %s\n", | |
216 | child->name, np->name); | |
855ff287 JL |
217 | rc = -EINVAL; |
218 | goto put_child; | |
f2051d6a GL |
219 | } |
220 | ||
9697a559 | 221 | rc = of_unittest_check_node_linkage(child); |
f2051d6a | 222 | if (rc < 0) |
855ff287 | 223 | goto put_child; |
f2051d6a GL |
224 | count += rc; |
225 | } | |
226 | ||
227 | return count + 1; | |
855ff287 JL |
228 | put_child: |
229 | of_node_put(child); | |
230 | return rc; | |
f2051d6a GL |
231 | } |
232 | ||
9697a559 | 233 | static void __init of_unittest_check_tree_linkage(void) |
f2051d6a GL |
234 | { |
235 | struct device_node *np; | |
236 | int allnode_count = 0, child_count; | |
237 | ||
5063e25a | 238 | if (!of_root) |
f2051d6a GL |
239 | return; |
240 | ||
241 | for_each_of_allnodes(np) | |
242 | allnode_count++; | |
9697a559 | 243 | child_count = of_unittest_check_node_linkage(of_root); |
f2051d6a | 244 | |
9697a559 | 245 | unittest(child_count > 0, "Device node data structure is corrupted\n"); |
a2166ca5 | 246 | unittest(child_count == allnode_count, |
a6bb121e FR |
247 | "allnodes list size (%i) doesn't match sibling lists size (%i)\n", |
248 | allnode_count, child_count); | |
f2051d6a GL |
249 | pr_debug("allnodes list size (%i); sibling lists size (%i)\n", allnode_count, child_count); |
250 | } | |
251 | ||
ce4fecf1 PA |
252 | static void __init of_unittest_printf_one(struct device_node *np, const char *fmt, |
253 | const char *expected) | |
254 | { | |
d4b9e425 TH |
255 | unsigned char *buf; |
256 | int buf_size; | |
ce4fecf1 PA |
257 | int size, i; |
258 | ||
d4b9e425 TH |
259 | buf_size = strlen(expected) + 10; |
260 | buf = kmalloc(buf_size, GFP_KERNEL); | |
261 | if (!buf) | |
262 | return; | |
263 | ||
ce4fecf1 | 264 | /* Baseline; check conversion with a large size limit */ |
d4b9e425 TH |
265 | memset(buf, 0xff, buf_size); |
266 | size = snprintf(buf, buf_size - 2, fmt, np); | |
ce4fecf1 PA |
267 | |
268 | /* use strcmp() instead of strncmp() here to be absolutely sure strings match */ | |
269 | unittest((strcmp(buf, expected) == 0) && (buf[size+1] == 0xff), | |
270 | "sprintf failed; fmt='%s' expected='%s' rslt='%s'\n", | |
271 | fmt, expected, buf); | |
272 | ||
273 | /* Make sure length limits work */ | |
274 | size++; | |
275 | for (i = 0; i < 2; i++, size--) { | |
276 | /* Clear the buffer, and make sure it works correctly still */ | |
d4b9e425 | 277 | memset(buf, 0xff, buf_size); |
ce4fecf1 PA |
278 | snprintf(buf, size+1, fmt, np); |
279 | unittest(strncmp(buf, expected, size) == 0 && (buf[size+1] == 0xff), | |
280 | "snprintf failed; size=%i fmt='%s' expected='%s' rslt='%s'\n", | |
281 | size, fmt, expected, buf); | |
282 | } | |
d4b9e425 | 283 | kfree(buf); |
ce4fecf1 PA |
284 | } |
285 | ||
286 | static void __init of_unittest_printf(void) | |
287 | { | |
288 | struct device_node *np; | |
289 | const char *full_name = "/testcase-data/platform-tests/test-device@1/dev@100"; | |
290 | char phandle_str[16] = ""; | |
291 | ||
292 | np = of_find_node_by_path(full_name); | |
293 | if (!np) { | |
294 | unittest(np, "testcase data missing\n"); | |
295 | return; | |
296 | } | |
297 | ||
d1be35cb | 298 | num_to_str(phandle_str, sizeof(phandle_str), np->phandle, 0); |
ce4fecf1 PA |
299 | |
300 | of_unittest_printf_one(np, "%pOF", full_name); | |
301 | of_unittest_printf_one(np, "%pOFf", full_name); | |
302 | of_unittest_printf_one(np, "%pOFp", phandle_str); | |
303 | of_unittest_printf_one(np, "%pOFP", "dev@100"); | |
304 | of_unittest_printf_one(np, "ABC %pOFP ABC", "ABC dev@100 ABC"); | |
305 | of_unittest_printf_one(np, "%10pOFP", " dev@100"); | |
306 | of_unittest_printf_one(np, "%-10pOFP", "dev@100 "); | |
307 | of_unittest_printf_one(of_root, "%pOFP", "/"); | |
308 | of_unittest_printf_one(np, "%pOFF", "----"); | |
309 | of_unittest_printf_one(np, "%pOFPF", "dev@100:----"); | |
310 | of_unittest_printf_one(np, "%pOFPFPc", "dev@100:----:dev@100:test-sub-device"); | |
311 | of_unittest_printf_one(np, "%pOFc", "test-sub-device"); | |
312 | of_unittest_printf_one(np, "%pOFC", | |
313 | "\"test-sub-device\",\"test-compat2\",\"test-compat3\""); | |
314 | } | |
315 | ||
841ec213 GL |
316 | struct node_hash { |
317 | struct hlist_node node; | |
318 | struct device_node *np; | |
319 | }; | |
320 | ||
2118f4b8 | 321 | static DEFINE_HASHTABLE(phandle_ht, 8); |
9697a559 | 322 | static void __init of_unittest_check_phandles(void) |
841ec213 GL |
323 | { |
324 | struct device_node *np; | |
325 | struct node_hash *nh; | |
326 | struct hlist_node *tmp; | |
327 | int i, dup_count = 0, phandle_count = 0; | |
841ec213 | 328 | |
841ec213 GL |
329 | for_each_of_allnodes(np) { |
330 | if (!np->phandle) | |
331 | continue; | |
332 | ||
2118f4b8 | 333 | hash_for_each_possible(phandle_ht, nh, node, np->phandle) { |
841ec213 | 334 | if (nh->np->phandle == np->phandle) { |
0d638a07 RH |
335 | pr_info("Duplicate phandle! %i used by %pOF and %pOF\n", |
336 | np->phandle, nh->np, np); | |
841ec213 GL |
337 | dup_count++; |
338 | break; | |
339 | } | |
340 | } | |
341 | ||
342 | nh = kzalloc(sizeof(*nh), GFP_KERNEL); | |
343 | if (WARN_ON(!nh)) | |
344 | return; | |
345 | ||
346 | nh->np = np; | |
2118f4b8 | 347 | hash_add(phandle_ht, &nh->node, np->phandle); |
841ec213 GL |
348 | phandle_count++; |
349 | } | |
9697a559 | 350 | unittest(dup_count == 0, "Found %i duplicates in %i phandles\n", |
841ec213 GL |
351 | dup_count, phandle_count); |
352 | ||
353 | /* Clean up */ | |
2118f4b8 | 354 | hash_for_each_safe(phandle_ht, i, tmp, nh, node) { |
841ec213 GL |
355 | hash_del(&nh->node); |
356 | kfree(nh); | |
357 | } | |
358 | } | |
359 | ||
9697a559 | 360 | static void __init of_unittest_parse_phandle_with_args(void) |
53a42093 GL |
361 | { |
362 | struct device_node *np; | |
363 | struct of_phandle_args args; | |
cabb7d5b | 364 | int i, rc; |
53a42093 | 365 | |
53a42093 GL |
366 | np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
367 | if (!np) { | |
368 | pr_err("missing testcase data\n"); | |
369 | return; | |
370 | } | |
371 | ||
bd69f73f | 372 | rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells"); |
9697a559 | 373 | unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc); |
bd69f73f | 374 | |
f7f951c2 | 375 | for (i = 0; i < 8; i++) { |
53a42093 | 376 | bool passed = true; |
3db316d0 | 377 | |
53a42093 GL |
378 | rc = of_parse_phandle_with_args(np, "phandle-list", |
379 | "#phandle-cells", i, &args); | |
380 | ||
381 | /* Test the values from tests-phandle.dtsi */ | |
382 | switch (i) { | |
383 | case 0: | |
384 | passed &= !rc; | |
385 | passed &= (args.args_count == 1); | |
386 | passed &= (args.args[0] == (i + 1)); | |
387 | break; | |
388 | case 1: | |
389 | passed &= !rc; | |
390 | passed &= (args.args_count == 2); | |
391 | passed &= (args.args[0] == (i + 1)); | |
392 | passed &= (args.args[1] == 0); | |
393 | break; | |
394 | case 2: | |
395 | passed &= (rc == -ENOENT); | |
396 | break; | |
397 | case 3: | |
398 | passed &= !rc; | |
399 | passed &= (args.args_count == 3); | |
400 | passed &= (args.args[0] == (i + 1)); | |
401 | passed &= (args.args[1] == 4); | |
402 | passed &= (args.args[2] == 3); | |
403 | break; | |
404 | case 4: | |
405 | passed &= !rc; | |
406 | passed &= (args.args_count == 2); | |
407 | passed &= (args.args[0] == (i + 1)); | |
408 | passed &= (args.args[1] == 100); | |
409 | break; | |
410 | case 5: | |
411 | passed &= !rc; | |
412 | passed &= (args.args_count == 0); | |
413 | break; | |
414 | case 6: | |
415 | passed &= !rc; | |
416 | passed &= (args.args_count == 1); | |
417 | passed &= (args.args[0] == (i + 1)); | |
418 | break; | |
419 | case 7: | |
cabb7d5b | 420 | passed &= (rc == -ENOENT); |
53a42093 GL |
421 | break; |
422 | default: | |
423 | passed = false; | |
424 | } | |
425 | ||
0d638a07 RH |
426 | unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
427 | i, args.np, rc); | |
53a42093 GL |
428 | } |
429 | ||
430 | /* Check for missing list property */ | |
431 | rc = of_parse_phandle_with_args(np, "phandle-list-missing", | |
432 | "#phandle-cells", 0, &args); | |
9697a559 | 433 | unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); |
bd69f73f GL |
434 | rc = of_count_phandle_with_args(np, "phandle-list-missing", |
435 | "#phandle-cells"); | |
9697a559 | 436 | unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); |
53a42093 GL |
437 | |
438 | /* Check for missing cells property */ | |
439 | rc = of_parse_phandle_with_args(np, "phandle-list", | |
440 | "#phandle-cells-missing", 0, &args); | |
9697a559 | 441 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
bd69f73f GL |
442 | rc = of_count_phandle_with_args(np, "phandle-list", |
443 | "#phandle-cells-missing"); | |
9697a559 | 444 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
53a42093 GL |
445 | |
446 | /* Check for bad phandle in list */ | |
447 | rc = of_parse_phandle_with_args(np, "phandle-list-bad-phandle", | |
448 | "#phandle-cells", 0, &args); | |
9697a559 | 449 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
bd69f73f GL |
450 | rc = of_count_phandle_with_args(np, "phandle-list-bad-phandle", |
451 | "#phandle-cells"); | |
9697a559 | 452 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
53a42093 GL |
453 | |
454 | /* Check for incorrectly formed argument list */ | |
455 | rc = of_parse_phandle_with_args(np, "phandle-list-bad-args", | |
456 | "#phandle-cells", 1, &args); | |
9697a559 | 457 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
bd69f73f GL |
458 | rc = of_count_phandle_with_args(np, "phandle-list-bad-args", |
459 | "#phandle-cells"); | |
9697a559 | 460 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); |
53a42093 GL |
461 | } |
462 | ||
357aa4b6 SB |
463 | static void __init of_unittest_parse_phandle_with_args_map(void) |
464 | { | |
465 | struct device_node *np, *p0, *p1, *p2, *p3; | |
466 | struct of_phandle_args args; | |
467 | int i, rc; | |
468 | ||
469 | np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-b"); | |
470 | if (!np) { | |
471 | pr_err("missing testcase data\n"); | |
472 | return; | |
473 | } | |
474 | ||
475 | p0 = of_find_node_by_path("/testcase-data/phandle-tests/provider0"); | |
476 | if (!p0) { | |
477 | pr_err("missing testcase data\n"); | |
478 | return; | |
479 | } | |
480 | ||
481 | p1 = of_find_node_by_path("/testcase-data/phandle-tests/provider1"); | |
482 | if (!p1) { | |
483 | pr_err("missing testcase data\n"); | |
484 | return; | |
485 | } | |
486 | ||
487 | p2 = of_find_node_by_path("/testcase-data/phandle-tests/provider2"); | |
488 | if (!p2) { | |
489 | pr_err("missing testcase data\n"); | |
490 | return; | |
491 | } | |
492 | ||
493 | p3 = of_find_node_by_path("/testcase-data/phandle-tests/provider3"); | |
494 | if (!p3) { | |
495 | pr_err("missing testcase data\n"); | |
496 | return; | |
497 | } | |
498 | ||
499 | rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells"); | |
500 | unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc); | |
501 | ||
502 | for (i = 0; i < 8; i++) { | |
503 | bool passed = true; | |
504 | ||
505 | rc = of_parse_phandle_with_args_map(np, "phandle-list", | |
506 | "phandle", i, &args); | |
507 | ||
508 | /* Test the values from tests-phandle.dtsi */ | |
509 | switch (i) { | |
510 | case 0: | |
511 | passed &= !rc; | |
512 | passed &= (args.np == p1); | |
513 | passed &= (args.args_count == 1); | |
514 | passed &= (args.args[0] == 1); | |
515 | break; | |
516 | case 1: | |
517 | passed &= !rc; | |
518 | passed &= (args.np == p3); | |
519 | passed &= (args.args_count == 3); | |
520 | passed &= (args.args[0] == 2); | |
521 | passed &= (args.args[1] == 5); | |
522 | passed &= (args.args[2] == 3); | |
523 | break; | |
524 | case 2: | |
525 | passed &= (rc == -ENOENT); | |
526 | break; | |
527 | case 3: | |
528 | passed &= !rc; | |
529 | passed &= (args.np == p0); | |
530 | passed &= (args.args_count == 0); | |
531 | break; | |
532 | case 4: | |
533 | passed &= !rc; | |
534 | passed &= (args.np == p1); | |
535 | passed &= (args.args_count == 1); | |
536 | passed &= (args.args[0] == 3); | |
537 | break; | |
538 | case 5: | |
539 | passed &= !rc; | |
540 | passed &= (args.np == p0); | |
541 | passed &= (args.args_count == 0); | |
542 | break; | |
543 | case 6: | |
544 | passed &= !rc; | |
545 | passed &= (args.np == p2); | |
546 | passed &= (args.args_count == 2); | |
547 | passed &= (args.args[0] == 15); | |
548 | passed &= (args.args[1] == 0x20); | |
549 | break; | |
550 | case 7: | |
551 | passed &= (rc == -ENOENT); | |
552 | break; | |
553 | default: | |
554 | passed = false; | |
555 | } | |
556 | ||
557 | unittest(passed, "index %i - data error on node %s rc=%i\n", | |
558 | i, args.np->full_name, rc); | |
559 | } | |
560 | ||
561 | /* Check for missing list property */ | |
562 | rc = of_parse_phandle_with_args_map(np, "phandle-list-missing", | |
563 | "phandle", 0, &args); | |
564 | unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc); | |
565 | ||
566 | /* Check for missing cells,map,mask property */ | |
567 | rc = of_parse_phandle_with_args_map(np, "phandle-list", | |
568 | "phandle-missing", 0, &args); | |
569 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); | |
570 | ||
571 | /* Check for bad phandle in list */ | |
572 | rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-phandle", | |
573 | "phandle", 0, &args); | |
574 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); | |
575 | ||
576 | /* Check for incorrectly formed argument list */ | |
577 | rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-args", | |
578 | "phandle", 1, &args); | |
579 | unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc); | |
580 | } | |
581 | ||
9697a559 | 582 | static void __init of_unittest_property_string(void) |
7aff0fe3 | 583 | { |
a87fa1d8 | 584 | const char *strings[4]; |
7aff0fe3 GL |
585 | struct device_node *np; |
586 | int rc; | |
587 | ||
7aff0fe3 GL |
588 | np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
589 | if (!np) { | |
590 | pr_err("No testcase data in device tree\n"); | |
591 | return; | |
592 | } | |
593 | ||
594 | rc = of_property_match_string(np, "phandle-list-names", "first"); | |
9697a559 | 595 | unittest(rc == 0, "first expected:0 got:%i\n", rc); |
7aff0fe3 | 596 | rc = of_property_match_string(np, "phandle-list-names", "second"); |
9697a559 | 597 | unittest(rc == 1, "second expected:1 got:%i\n", rc); |
7aff0fe3 | 598 | rc = of_property_match_string(np, "phandle-list-names", "third"); |
9697a559 | 599 | unittest(rc == 2, "third expected:2 got:%i\n", rc); |
7aff0fe3 | 600 | rc = of_property_match_string(np, "phandle-list-names", "fourth"); |
9697a559 | 601 | unittest(rc == -ENODATA, "unmatched string; rc=%i\n", rc); |
7aff0fe3 | 602 | rc = of_property_match_string(np, "missing-property", "blah"); |
9697a559 | 603 | unittest(rc == -EINVAL, "missing property; rc=%i\n", rc); |
7aff0fe3 | 604 | rc = of_property_match_string(np, "empty-property", "blah"); |
9697a559 | 605 | unittest(rc == -ENODATA, "empty property; rc=%i\n", rc); |
7aff0fe3 | 606 | rc = of_property_match_string(np, "unterminated-string", "blah"); |
9697a559 | 607 | unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
a87fa1d8 GL |
608 | |
609 | /* of_property_count_strings() tests */ | |
610 | rc = of_property_count_strings(np, "string-property"); | |
9697a559 | 611 | unittest(rc == 1, "Incorrect string count; rc=%i\n", rc); |
a87fa1d8 | 612 | rc = of_property_count_strings(np, "phandle-list-names"); |
9697a559 | 613 | unittest(rc == 3, "Incorrect string count; rc=%i\n", rc); |
a87fa1d8 | 614 | rc = of_property_count_strings(np, "unterminated-string"); |
9697a559 | 615 | unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
a87fa1d8 | 616 | rc = of_property_count_strings(np, "unterminated-string-list"); |
9697a559 | 617 | unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc); |
a87fa1d8 GL |
618 | |
619 | /* of_property_read_string_index() tests */ | |
620 | rc = of_property_read_string_index(np, "string-property", 0, strings); | |
9697a559 | 621 | unittest(rc == 0 && !strcmp(strings[0], "foobar"), "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 GL |
622 | strings[0] = NULL; |
623 | rc = of_property_read_string_index(np, "string-property", 1, strings); | |
9697a559 | 624 | unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 | 625 | rc = of_property_read_string_index(np, "phandle-list-names", 0, strings); |
9697a559 | 626 | unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 | 627 | rc = of_property_read_string_index(np, "phandle-list-names", 1, strings); |
9697a559 | 628 | unittest(rc == 0 && !strcmp(strings[0], "second"), "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 | 629 | rc = of_property_read_string_index(np, "phandle-list-names", 2, strings); |
9697a559 | 630 | unittest(rc == 0 && !strcmp(strings[0], "third"), "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 GL |
631 | strings[0] = NULL; |
632 | rc = of_property_read_string_index(np, "phandle-list-names", 3, strings); | |
9697a559 | 633 | unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 GL |
634 | strings[0] = NULL; |
635 | rc = of_property_read_string_index(np, "unterminated-string", 0, strings); | |
9697a559 | 636 | unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 | 637 | rc = of_property_read_string_index(np, "unterminated-string-list", 0, strings); |
9697a559 | 638 | unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 GL |
639 | strings[0] = NULL; |
640 | rc = of_property_read_string_index(np, "unterminated-string-list", 2, strings); /* should fail */ | |
9697a559 | 641 | unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc); |
a87fa1d8 GL |
642 | strings[1] = NULL; |
643 | ||
644 | /* of_property_read_string_array() tests */ | |
645 | rc = of_property_read_string_array(np, "string-property", strings, 4); | |
9697a559 | 646 | unittest(rc == 1, "Incorrect string count; rc=%i\n", rc); |
a87fa1d8 | 647 | rc = of_property_read_string_array(np, "phandle-list-names", strings, 4); |
9697a559 | 648 | unittest(rc == 3, "Incorrect string count; rc=%i\n", rc); |
a87fa1d8 | 649 | rc = of_property_read_string_array(np, "unterminated-string", strings, 4); |
9697a559 | 650 | unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc); |
a87fa1d8 GL |
651 | /* -- An incorrectly formed string should cause a failure */ |
652 | rc = of_property_read_string_array(np, "unterminated-string-list", strings, 4); | |
9697a559 | 653 | unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc); |
a87fa1d8 GL |
654 | /* -- parsing the correctly formed strings should still work: */ |
655 | strings[2] = NULL; | |
656 | rc = of_property_read_string_array(np, "unterminated-string-list", strings, 2); | |
9697a559 | 657 | unittest(rc == 2 && strings[2] == NULL, "of_property_read_string_array() failure; rc=%i\n", rc); |
a87fa1d8 GL |
658 | strings[1] = NULL; |
659 | rc = of_property_read_string_array(np, "phandle-list-names", strings, 1); | |
9697a559 | 660 | unittest(rc == 1 && strings[1] == NULL, "Overwrote end of string array; rc=%i, str='%s'\n", rc, strings[1]); |
7aff0fe3 GL |
661 | } |
662 | ||
69843396 PA |
663 | #define propcmp(p1, p2) (((p1)->length == (p2)->length) && \ |
664 | (p1)->value && (p2)->value && \ | |
665 | !memcmp((p1)->value, (p2)->value, (p1)->length) && \ | |
666 | !strcmp((p1)->name, (p2)->name)) | |
9697a559 | 667 | static void __init of_unittest_property_copy(void) |
69843396 PA |
668 | { |
669 | #ifdef CONFIG_OF_DYNAMIC | |
670 | struct property p1 = { .name = "p1", .length = 0, .value = "" }; | |
671 | struct property p2 = { .name = "p2", .length = 5, .value = "abcd" }; | |
672 | struct property *new; | |
673 | ||
674 | new = __of_prop_dup(&p1, GFP_KERNEL); | |
9697a559 | 675 | unittest(new && propcmp(&p1, new), "empty property didn't copy correctly\n"); |
69843396 PA |
676 | kfree(new->value); |
677 | kfree(new->name); | |
678 | kfree(new); | |
679 | ||
680 | new = __of_prop_dup(&p2, GFP_KERNEL); | |
9697a559 | 681 | unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n"); |
69843396 PA |
682 | kfree(new->value); |
683 | kfree(new->name); | |
684 | kfree(new); | |
685 | #endif | |
686 | } | |
687 | ||
9697a559 | 688 | static void __init of_unittest_changeset(void) |
201c910b PA |
689 | { |
690 | #ifdef CONFIG_OF_DYNAMIC | |
a4f91f0d FR |
691 | struct property *ppadd, padd = { .name = "prop-add", .length = 1, .value = "" }; |
692 | struct property *ppname_n1, pname_n1 = { .name = "name", .length = 3, .value = "n1" }; | |
693 | struct property *ppname_n2, pname_n2 = { .name = "name", .length = 3, .value = "n2" }; | |
694 | struct property *ppname_n21, pname_n21 = { .name = "name", .length = 3, .value = "n21" }; | |
201c910b PA |
695 | struct property *ppupdate, pupdate = { .name = "prop-update", .length = 5, .value = "abcd" }; |
696 | struct property *ppremove; | |
a4f91f0d | 697 | struct device_node *n1, *n2, *n21, *nchangeset, *nremove, *parent, *np; |
201c910b PA |
698 | struct of_changeset chgset; |
699 | ||
b89dae18 | 700 | n1 = __of_node_dup(NULL, "n1"); |
9697a559 | 701 | unittest(n1, "testcase setup failure\n"); |
a4f91f0d | 702 | |
b89dae18 | 703 | n2 = __of_node_dup(NULL, "n2"); |
9697a559 | 704 | unittest(n2, "testcase setup failure\n"); |
a4f91f0d | 705 | |
b89dae18 | 706 | n21 = __of_node_dup(NULL, "n21"); |
9697a559 | 707 | unittest(n21, "testcase setup failure %p\n", n21); |
a4f91f0d FR |
708 | |
709 | nchangeset = of_find_node_by_path("/testcase-data/changeset"); | |
710 | nremove = of_get_child_by_name(nchangeset, "node-remove"); | |
9697a559 | 711 | unittest(nremove, "testcase setup failure\n"); |
a4f91f0d | 712 | |
201c910b | 713 | ppadd = __of_prop_dup(&padd, GFP_KERNEL); |
9697a559 | 714 | unittest(ppadd, "testcase setup failure\n"); |
a4f91f0d FR |
715 | |
716 | ppname_n1 = __of_prop_dup(&pname_n1, GFP_KERNEL); | |
717 | unittest(ppname_n1, "testcase setup failure\n"); | |
718 | ||
719 | ppname_n2 = __of_prop_dup(&pname_n2, GFP_KERNEL); | |
720 | unittest(ppname_n2, "testcase setup failure\n"); | |
721 | ||
722 | ppname_n21 = __of_prop_dup(&pname_n21, GFP_KERNEL); | |
723 | unittest(ppname_n21, "testcase setup failure\n"); | |
724 | ||
201c910b | 725 | ppupdate = __of_prop_dup(&pupdate, GFP_KERNEL); |
9697a559 | 726 | unittest(ppupdate, "testcase setup failure\n"); |
a4f91f0d FR |
727 | |
728 | parent = nchangeset; | |
201c910b PA |
729 | n1->parent = parent; |
730 | n2->parent = parent; | |
731 | n21->parent = n2; | |
a4f91f0d | 732 | |
201c910b | 733 | ppremove = of_find_property(parent, "prop-remove", NULL); |
9697a559 | 734 | unittest(ppremove, "failed to find removal prop"); |
201c910b PA |
735 | |
736 | of_changeset_init(&chgset); | |
a4f91f0d | 737 | |
9697a559 | 738 | unittest(!of_changeset_attach_node(&chgset, n1), "fail attach n1\n"); |
a4f91f0d FR |
739 | unittest(!of_changeset_add_property(&chgset, n1, ppname_n1), "fail add prop name\n"); |
740 | ||
9697a559 | 741 | unittest(!of_changeset_attach_node(&chgset, n2), "fail attach n2\n"); |
a4f91f0d FR |
742 | unittest(!of_changeset_add_property(&chgset, n2, ppname_n2), "fail add prop name\n"); |
743 | ||
9697a559 | 744 | unittest(!of_changeset_detach_node(&chgset, nremove), "fail remove node\n"); |
a4f91f0d FR |
745 | unittest(!of_changeset_add_property(&chgset, n21, ppname_n21), "fail add prop name\n"); |
746 | ||
9697a559 | 747 | unittest(!of_changeset_attach_node(&chgset, n21), "fail attach n21\n"); |
a4f91f0d FR |
748 | |
749 | unittest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop prop-add\n"); | |
9697a559 WL |
750 | unittest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n"); |
751 | unittest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n"); | |
a4f91f0d | 752 | |
9697a559 | 753 | unittest(!of_changeset_apply(&chgset), "apply failed\n"); |
201c910b | 754 | |
a4f91f0d FR |
755 | of_node_put(nchangeset); |
756 | ||
e5179581 | 757 | /* Make sure node names are constructed correctly */ |
9697a559 | 758 | unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")), |
0d638a07 | 759 | "'%pOF' not added\n", n21); |
c46ca3c8 | 760 | of_node_put(np); |
e5179581 | 761 | |
9697a559 | 762 | unittest(!of_changeset_revert(&chgset), "revert failed\n"); |
201c910b PA |
763 | |
764 | of_changeset_destroy(&chgset); | |
765 | #endif | |
766 | } | |
767 | ||
9697a559 | 768 | static void __init of_unittest_parse_interrupts(void) |
a9f10ca7 GL |
769 | { |
770 | struct device_node *np; | |
771 | struct of_phandle_args args; | |
772 | int i, rc; | |
773 | ||
774 | np = of_find_node_by_path("/testcase-data/interrupts/interrupts0"); | |
775 | if (!np) { | |
776 | pr_err("missing testcase data\n"); | |
777 | return; | |
778 | } | |
779 | ||
780 | for (i = 0; i < 4; i++) { | |
781 | bool passed = true; | |
3db316d0 | 782 | |
a9f10ca7 GL |
783 | args.args_count = 0; |
784 | rc = of_irq_parse_one(np, i, &args); | |
785 | ||
786 | passed &= !rc; | |
787 | passed &= (args.args_count == 1); | |
788 | passed &= (args.args[0] == (i + 1)); | |
789 | ||
0d638a07 RH |
790 | unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
791 | i, args.np, rc); | |
a9f10ca7 GL |
792 | } |
793 | of_node_put(np); | |
794 | ||
795 | np = of_find_node_by_path("/testcase-data/interrupts/interrupts1"); | |
796 | if (!np) { | |
797 | pr_err("missing testcase data\n"); | |
798 | return; | |
799 | } | |
800 | ||
801 | for (i = 0; i < 4; i++) { | |
802 | bool passed = true; | |
3db316d0 | 803 | |
a9f10ca7 GL |
804 | args.args_count = 0; |
805 | rc = of_irq_parse_one(np, i, &args); | |
806 | ||
807 | /* Test the values from tests-phandle.dtsi */ | |
808 | switch (i) { | |
809 | case 0: | |
810 | passed &= !rc; | |
811 | passed &= (args.args_count == 1); | |
812 | passed &= (args.args[0] == 9); | |
813 | break; | |
814 | case 1: | |
815 | passed &= !rc; | |
816 | passed &= (args.args_count == 3); | |
817 | passed &= (args.args[0] == 10); | |
818 | passed &= (args.args[1] == 11); | |
819 | passed &= (args.args[2] == 12); | |
820 | break; | |
821 | case 2: | |
822 | passed &= !rc; | |
823 | passed &= (args.args_count == 2); | |
824 | passed &= (args.args[0] == 13); | |
825 | passed &= (args.args[1] == 14); | |
826 | break; | |
827 | case 3: | |
828 | passed &= !rc; | |
829 | passed &= (args.args_count == 2); | |
830 | passed &= (args.args[0] == 15); | |
831 | passed &= (args.args[1] == 16); | |
832 | break; | |
833 | default: | |
834 | passed = false; | |
835 | } | |
0d638a07 RH |
836 | unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
837 | i, args.np, rc); | |
a9f10ca7 GL |
838 | } |
839 | of_node_put(np); | |
840 | } | |
841 | ||
9697a559 | 842 | static void __init of_unittest_parse_interrupts_extended(void) |
79d97015 GL |
843 | { |
844 | struct device_node *np; | |
845 | struct of_phandle_args args; | |
846 | int i, rc; | |
847 | ||
848 | np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0"); | |
849 | if (!np) { | |
850 | pr_err("missing testcase data\n"); | |
851 | return; | |
852 | } | |
853 | ||
854 | for (i = 0; i < 7; i++) { | |
855 | bool passed = true; | |
3db316d0 | 856 | |
79d97015 GL |
857 | rc = of_irq_parse_one(np, i, &args); |
858 | ||
859 | /* Test the values from tests-phandle.dtsi */ | |
860 | switch (i) { | |
861 | case 0: | |
862 | passed &= !rc; | |
863 | passed &= (args.args_count == 1); | |
864 | passed &= (args.args[0] == 1); | |
865 | break; | |
866 | case 1: | |
867 | passed &= !rc; | |
868 | passed &= (args.args_count == 3); | |
869 | passed &= (args.args[0] == 2); | |
870 | passed &= (args.args[1] == 3); | |
871 | passed &= (args.args[2] == 4); | |
872 | break; | |
873 | case 2: | |
874 | passed &= !rc; | |
875 | passed &= (args.args_count == 2); | |
876 | passed &= (args.args[0] == 5); | |
877 | passed &= (args.args[1] == 6); | |
878 | break; | |
879 | case 3: | |
880 | passed &= !rc; | |
881 | passed &= (args.args_count == 1); | |
882 | passed &= (args.args[0] == 9); | |
883 | break; | |
884 | case 4: | |
885 | passed &= !rc; | |
886 | passed &= (args.args_count == 3); | |
887 | passed &= (args.args[0] == 10); | |
888 | passed &= (args.args[1] == 11); | |
889 | passed &= (args.args[2] == 12); | |
890 | break; | |
891 | case 5: | |
892 | passed &= !rc; | |
893 | passed &= (args.args_count == 2); | |
894 | passed &= (args.args[0] == 13); | |
895 | passed &= (args.args[1] == 14); | |
896 | break; | |
897 | case 6: | |
898 | passed &= !rc; | |
899 | passed &= (args.args_count == 1); | |
900 | passed &= (args.args[0] == 15); | |
901 | break; | |
902 | default: | |
903 | passed = false; | |
904 | } | |
905 | ||
0d638a07 RH |
906 | unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
907 | i, args.np, rc); | |
79d97015 GL |
908 | } |
909 | of_node_put(np); | |
910 | } | |
911 | ||
afaed7a9 | 912 | static const struct of_device_id match_node_table[] = { |
1f42e5dd GL |
913 | { .data = "A", .name = "name0", }, /* Name alone is lowest priority */ |
914 | { .data = "B", .type = "type1", }, /* followed by type alone */ | |
915 | ||
916 | { .data = "Ca", .name = "name2", .type = "type1", }, /* followed by both together */ | |
917 | { .data = "Cb", .name = "name2", }, /* Only match when type doesn't match */ | |
918 | { .data = "Cc", .name = "name2", .type = "type2", }, | |
919 | ||
920 | { .data = "E", .compatible = "compat3" }, | |
921 | { .data = "G", .compatible = "compat2", }, | |
922 | { .data = "H", .compatible = "compat2", .name = "name5", }, | |
923 | { .data = "I", .compatible = "compat2", .type = "type1", }, | |
924 | { .data = "J", .compatible = "compat2", .type = "type1", .name = "name8", }, | |
925 | { .data = "K", .compatible = "compat2", .name = "name9", }, | |
926 | {} | |
927 | }; | |
928 | ||
929 | static struct { | |
930 | const char *path; | |
931 | const char *data; | |
932 | } match_node_tests[] = { | |
933 | { .path = "/testcase-data/match-node/name0", .data = "A", }, | |
934 | { .path = "/testcase-data/match-node/name1", .data = "B", }, | |
935 | { .path = "/testcase-data/match-node/a/name2", .data = "Ca", }, | |
936 | { .path = "/testcase-data/match-node/b/name2", .data = "Cb", }, | |
937 | { .path = "/testcase-data/match-node/c/name2", .data = "Cc", }, | |
938 | { .path = "/testcase-data/match-node/name3", .data = "E", }, | |
939 | { .path = "/testcase-data/match-node/name4", .data = "G", }, | |
940 | { .path = "/testcase-data/match-node/name5", .data = "H", }, | |
941 | { .path = "/testcase-data/match-node/name6", .data = "G", }, | |
942 | { .path = "/testcase-data/match-node/name7", .data = "I", }, | |
943 | { .path = "/testcase-data/match-node/name8", .data = "J", }, | |
944 | { .path = "/testcase-data/match-node/name9", .data = "K", }, | |
945 | }; | |
946 | ||
9697a559 | 947 | static void __init of_unittest_match_node(void) |
1f42e5dd GL |
948 | { |
949 | struct device_node *np; | |
950 | const struct of_device_id *match; | |
951 | int i; | |
952 | ||
953 | for (i = 0; i < ARRAY_SIZE(match_node_tests); i++) { | |
954 | np = of_find_node_by_path(match_node_tests[i].path); | |
955 | if (!np) { | |
9697a559 | 956 | unittest(0, "missing testcase node %s\n", |
1f42e5dd GL |
957 | match_node_tests[i].path); |
958 | continue; | |
959 | } | |
960 | ||
961 | match = of_match_node(match_node_table, np); | |
962 | if (!match) { | |
9697a559 | 963 | unittest(0, "%s didn't match anything\n", |
1f42e5dd GL |
964 | match_node_tests[i].path); |
965 | continue; | |
966 | } | |
967 | ||
968 | if (strcmp(match->data, match_node_tests[i].data) != 0) { | |
9697a559 | 969 | unittest(0, "%s got wrong match. expected %s, got %s\n", |
1f42e5dd GL |
970 | match_node_tests[i].path, match_node_tests[i].data, |
971 | (const char *)match->data); | |
972 | continue; | |
973 | } | |
9697a559 | 974 | unittest(1, "passed"); |
1f42e5dd GL |
975 | } |
976 | } | |
977 | ||
d2329fb5 GL |
978 | static struct resource test_bus_res = { |
979 | .start = 0xfffffff8, | |
980 | .end = 0xfffffff9, | |
981 | .flags = IORESOURCE_MEM, | |
982 | }; | |
37791b6f GL |
983 | static const struct platform_device_info test_bus_info = { |
984 | .name = "unittest-bus", | |
851da976 | 985 | }; |
9697a559 | 986 | static void __init of_unittest_platform_populate(void) |
82c0f589 | 987 | { |
851da976 GL |
988 | int irq, rc; |
989 | struct device_node *np, *child, *grandchild; | |
37791b6f | 990 | struct platform_device *pdev, *test_bus; |
afaed7a9 | 991 | const struct of_device_id match[] = { |
fb2caa50 RH |
992 | { .compatible = "test-device", }, |
993 | {} | |
994 | }; | |
82c0f589 RH |
995 | |
996 | np = of_find_node_by_path("/testcase-data"); | |
146dedbc | 997 | of_platform_default_populate(np, NULL, NULL); |
82c0f589 RH |
998 | |
999 | /* Test that a missing irq domain returns -EPROBE_DEFER */ | |
1000 | np = of_find_node_by_path("/testcase-data/testcase-device1"); | |
1001 | pdev = of_find_device_by_node(np); | |
9697a559 | 1002 | unittest(pdev, "device 1 creation failed\n"); |
7d1cdc89 | 1003 | |
82c0f589 | 1004 | irq = platform_get_irq(pdev, 0); |
9697a559 | 1005 | unittest(irq == -EPROBE_DEFER, "device deferred probe failed - %d\n", irq); |
82c0f589 RH |
1006 | |
1007 | /* Test that a parsing failure does not return -EPROBE_DEFER */ | |
1008 | np = of_find_node_by_path("/testcase-data/testcase-device2"); | |
1009 | pdev = of_find_device_by_node(np); | |
9697a559 | 1010 | unittest(pdev, "device 2 creation failed\n"); |
82c0f589 | 1011 | irq = platform_get_irq(pdev, 0); |
9697a559 | 1012 | unittest(irq < 0 && irq != -EPROBE_DEFER, "device parsing error failed - %d\n", irq); |
82c0f589 | 1013 | |
716e1d49 | 1014 | np = of_find_node_by_path("/testcase-data/platform-tests"); |
a2166ca5 | 1015 | unittest(np, "No testcase data in device tree\n"); |
716e1d49 | 1016 | if (!np) |
851da976 GL |
1017 | return; |
1018 | ||
37791b6f GL |
1019 | test_bus = platform_device_register_full(&test_bus_info); |
1020 | rc = PTR_ERR_OR_ZERO(test_bus); | |
a2166ca5 | 1021 | unittest(!rc, "testbus registration failed; rc=%i\n", rc); |
716e1d49 | 1022 | if (rc) |
fb2caa50 | 1023 | return; |
37791b6f | 1024 | test_bus->dev.of_node = np; |
fb2caa50 | 1025 | |
d2329fb5 GL |
1026 | /* |
1027 | * Add a dummy resource to the test bus node after it is | |
1028 | * registered to catch problems with un-inserted resources. The | |
1029 | * DT code doesn't insert the resources, and it has caused the | |
1030 | * kernel to oops in the past. This makes sure the same bug | |
1031 | * doesn't crop up again. | |
1032 | */ | |
1033 | platform_device_add_resources(test_bus, &test_bus_res, 1); | |
1034 | ||
37791b6f | 1035 | of_platform_populate(np, match, NULL, &test_bus->dev); |
fb2caa50 | 1036 | for_each_child_of_node(np, child) { |
fb2caa50 | 1037 | for_each_child_of_node(child, grandchild) |
9697a559 | 1038 | unittest(of_find_device_by_node(grandchild), |
fb2caa50 RH |
1039 | "Could not create device for node '%s'\n", |
1040 | grandchild->name); | |
1041 | } | |
851da976 | 1042 | |
37791b6f | 1043 | of_platform_depopulate(&test_bus->dev); |
851da976 GL |
1044 | for_each_child_of_node(np, child) { |
1045 | for_each_child_of_node(child, grandchild) | |
9697a559 | 1046 | unittest(!of_find_device_by_node(grandchild), |
851da976 GL |
1047 | "device didn't get destroyed '%s'\n", |
1048 | grandchild->name); | |
1049 | } | |
1050 | ||
37791b6f | 1051 | platform_device_unregister(test_bus); |
851da976 | 1052 | of_node_put(np); |
82c0f589 RH |
1053 | } |
1054 | ||
ae9304c9 GM |
1055 | /** |
1056 | * update_node_properties - adds the properties | |
1057 | * of np into dup node (present in live tree) and | |
1058 | * updates parent of children of np to dup. | |
1059 | * | |
1060 | * @np: node already present in live tree | |
1061 | * @dup: node present in live tree to be updated | |
1062 | */ | |
1063 | static void update_node_properties(struct device_node *np, | |
1064 | struct device_node *dup) | |
1065 | { | |
1066 | struct property *prop; | |
1067 | struct device_node *child; | |
1068 | ||
1069 | for_each_property_of_node(np, prop) | |
1070 | of_add_property(dup, prop); | |
1071 | ||
1072 | for_each_child_of_node(np, child) | |
1073 | child->parent = dup; | |
1074 | } | |
1075 | ||
1076 | /** | |
1077 | * attach_node_and_children - attaches nodes | |
1078 | * and its children to live tree | |
1079 | * | |
1080 | * @np: Node to attach to live tree | |
1081 | */ | |
1082 | static int attach_node_and_children(struct device_node *np) | |
1083 | { | |
5063e25a | 1084 | struct device_node *next, *dup, *child; |
3ce04b4a | 1085 | unsigned long flags; |
0d638a07 | 1086 | const char *full_name; |
ae9304c9 | 1087 | |
0d638a07 RH |
1088 | full_name = kasprintf(GFP_KERNEL, "%pOF", np); |
1089 | dup = of_find_node_by_path(full_name); | |
1090 | kfree(full_name); | |
5063e25a GL |
1091 | if (dup) { |
1092 | update_node_properties(np, dup); | |
1093 | return 0; | |
1094 | } | |
ae9304c9 | 1095 | |
5063e25a GL |
1096 | child = np->child; |
1097 | np->child = NULL; | |
3ce04b4a GM |
1098 | |
1099 | mutex_lock(&of_mutex); | |
1100 | raw_spin_lock_irqsave(&devtree_lock, flags); | |
1101 | np->sibling = np->parent->child; | |
1102 | np->parent->child = np; | |
1103 | of_node_clear_flag(np, OF_DETACHED); | |
1104 | raw_spin_unlock_irqrestore(&devtree_lock, flags); | |
1105 | ||
1106 | __of_attach_node_sysfs(np); | |
1107 | mutex_unlock(&of_mutex); | |
1108 | ||
5063e25a GL |
1109 | while (child) { |
1110 | next = child->sibling; | |
1111 | attach_node_and_children(child); | |
1112 | child = next; | |
ae9304c9 GM |
1113 | } |
1114 | ||
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | /** | |
9697a559 | 1119 | * unittest_data_add - Reads, copies data from |
ae9304c9 GM |
1120 | * linked tree and attaches it to the live tree |
1121 | */ | |
9697a559 | 1122 | static int __init unittest_data_add(void) |
ae9304c9 | 1123 | { |
9697a559 WL |
1124 | void *unittest_data; |
1125 | struct device_node *unittest_data_node, *np; | |
c8547119 FR |
1126 | /* |
1127 | * __dtb_testcases_begin[] and __dtb_testcases_end[] are magically | |
1128 | * created by cmd_dt_S_dtb in scripts/Makefile.lib | |
1129 | */ | |
ae9304c9 GM |
1130 | extern uint8_t __dtb_testcases_begin[]; |
1131 | extern uint8_t __dtb_testcases_end[]; | |
1132 | const int size = __dtb_testcases_end - __dtb_testcases_begin; | |
2eb46da2 | 1133 | int rc; |
ae9304c9 | 1134 | |
b951f9dc | 1135 | if (!size) { |
ae9304c9 GM |
1136 | pr_warn("%s: No testcase data to attach; not running tests\n", |
1137 | __func__); | |
1138 | return -ENODATA; | |
1139 | } | |
1140 | ||
1141 | /* creating copy */ | |
9697a559 | 1142 | unittest_data = kmemdup(__dtb_testcases_begin, size, GFP_KERNEL); |
ae9304c9 | 1143 | |
9697a559 WL |
1144 | if (!unittest_data) { |
1145 | pr_warn("%s: Failed to allocate memory for unittest_data; " | |
ae9304c9 GM |
1146 | "not running tests\n", __func__); |
1147 | return -ENOMEM; | |
1148 | } | |
c4263233 | 1149 | of_fdt_unflatten_tree(unittest_data, NULL, &unittest_data_node); |
9697a559 | 1150 | if (!unittest_data_node) { |
b951f9dc GM |
1151 | pr_warn("%s: No tree to attach; not running tests\n", __func__); |
1152 | return -ENODATA; | |
1153 | } | |
f948d6d8 FR |
1154 | |
1155 | /* | |
39a751a4 | 1156 | * This lock normally encloses of_resolve_phandles() |
f948d6d8 FR |
1157 | */ |
1158 | of_overlay_mutex_lock(); | |
1159 | ||
9697a559 | 1160 | rc = of_resolve_phandles(unittest_data_node); |
2eb46da2 GL |
1161 | if (rc) { |
1162 | pr_err("%s: Failed to resolve phandles (rc=%i)\n", __func__, rc); | |
f948d6d8 | 1163 | of_overlay_mutex_unlock(); |
2eb46da2 GL |
1164 | return -EINVAL; |
1165 | } | |
b951f9dc | 1166 | |
5063e25a | 1167 | if (!of_root) { |
9697a559 | 1168 | of_root = unittest_data_node; |
b951f9dc GM |
1169 | for_each_of_allnodes(np) |
1170 | __of_attach_node_sysfs(np); | |
1171 | of_aliases = of_find_node_by_path("/aliases"); | |
1172 | of_chosen = of_find_node_by_path("/chosen"); | |
f948d6d8 | 1173 | of_overlay_mutex_unlock(); |
b951f9dc GM |
1174 | return 0; |
1175 | } | |
ae9304c9 GM |
1176 | |
1177 | /* attach the sub-tree to live tree */ | |
9697a559 | 1178 | np = unittest_data_node->child; |
5063e25a GL |
1179 | while (np) { |
1180 | struct device_node *next = np->sibling; | |
3db316d0 | 1181 | |
5063e25a GL |
1182 | np->parent = of_root; |
1183 | attach_node_and_children(np); | |
1184 | np = next; | |
1185 | } | |
f948d6d8 FR |
1186 | |
1187 | of_overlay_mutex_unlock(); | |
1188 | ||
5063e25a | 1189 | return 0; |
ae9304c9 GM |
1190 | } |
1191 | ||
177d271c | 1192 | #ifdef CONFIG_OF_OVERLAY |
202fbf48 | 1193 | static int __init overlay_data_apply(const char *overlay_name, int *overlay_id); |
177d271c | 1194 | |
9697a559 | 1195 | static int unittest_probe(struct platform_device *pdev) |
177d271c PA |
1196 | { |
1197 | struct device *dev = &pdev->dev; | |
1198 | struct device_node *np = dev->of_node; | |
1199 | ||
1200 | if (np == NULL) { | |
1201 | dev_err(dev, "No OF data for device\n"); | |
1202 | return -EINVAL; | |
1203 | ||
1204 | } | |
1205 | ||
0d638a07 | 1206 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
6b1271de PA |
1207 | |
1208 | of_platform_populate(np, NULL, NULL, &pdev->dev); | |
1209 | ||
177d271c PA |
1210 | return 0; |
1211 | } | |
1212 | ||
9697a559 | 1213 | static int unittest_remove(struct platform_device *pdev) |
177d271c PA |
1214 | { |
1215 | struct device *dev = &pdev->dev; | |
1216 | struct device_node *np = dev->of_node; | |
1217 | ||
0d638a07 | 1218 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
177d271c PA |
1219 | return 0; |
1220 | } | |
1221 | ||
a2166ca5 | 1222 | static const struct of_device_id unittest_match[] = { |
9697a559 | 1223 | { .compatible = "unittest", }, |
177d271c PA |
1224 | {}, |
1225 | }; | |
177d271c | 1226 | |
9697a559 WL |
1227 | static struct platform_driver unittest_driver = { |
1228 | .probe = unittest_probe, | |
1229 | .remove = unittest_remove, | |
177d271c | 1230 | .driver = { |
9697a559 | 1231 | .name = "unittest", |
9697a559 | 1232 | .of_match_table = of_match_ptr(unittest_match), |
177d271c PA |
1233 | }, |
1234 | }; | |
1235 | ||
1236 | /* get the platform device instantiated at the path */ | |
1237 | static struct platform_device *of_path_to_platform_device(const char *path) | |
1238 | { | |
1239 | struct device_node *np; | |
1240 | struct platform_device *pdev; | |
1241 | ||
1242 | np = of_find_node_by_path(path); | |
1243 | if (np == NULL) | |
1244 | return NULL; | |
1245 | ||
1246 | pdev = of_find_device_by_node(np); | |
1247 | of_node_put(np); | |
1248 | ||
1249 | return pdev; | |
1250 | } | |
1251 | ||
1252 | /* find out if a platform device exists at that path */ | |
1253 | static int of_path_platform_device_exists(const char *path) | |
1254 | { | |
1255 | struct platform_device *pdev; | |
1256 | ||
1257 | pdev = of_path_to_platform_device(path); | |
1258 | platform_device_put(pdev); | |
1259 | return pdev != NULL; | |
1260 | } | |
1261 | ||
4252de39 | 1262 | #if IS_BUILTIN(CONFIG_I2C) |
d5e75500 PA |
1263 | |
1264 | /* get the i2c client device instantiated at the path */ | |
1265 | static struct i2c_client *of_path_to_i2c_client(const char *path) | |
1266 | { | |
1267 | struct device_node *np; | |
1268 | struct i2c_client *client; | |
1269 | ||
1270 | np = of_find_node_by_path(path); | |
1271 | if (np == NULL) | |
1272 | return NULL; | |
1273 | ||
1274 | client = of_find_i2c_device_by_node(np); | |
1275 | of_node_put(np); | |
1276 | ||
1277 | return client; | |
1278 | } | |
1279 | ||
1280 | /* find out if a i2c client device exists at that path */ | |
1281 | static int of_path_i2c_client_exists(const char *path) | |
1282 | { | |
1283 | struct i2c_client *client; | |
1284 | ||
1285 | client = of_path_to_i2c_client(path); | |
1286 | if (client) | |
1287 | put_device(&client->dev); | |
1288 | return client != NULL; | |
1289 | } | |
1290 | #else | |
1291 | static int of_path_i2c_client_exists(const char *path) | |
1292 | { | |
1293 | return 0; | |
1294 | } | |
1295 | #endif | |
1296 | ||
1297 | enum overlay_type { | |
1298 | PDEV_OVERLAY, | |
1299 | I2C_OVERLAY | |
1300 | }; | |
1301 | ||
1302 | static int of_path_device_type_exists(const char *path, | |
1303 | enum overlay_type ovtype) | |
177d271c | 1304 | { |
d5e75500 PA |
1305 | switch (ovtype) { |
1306 | case PDEV_OVERLAY: | |
1307 | return of_path_platform_device_exists(path); | |
1308 | case I2C_OVERLAY: | |
1309 | return of_path_i2c_client_exists(path); | |
1310 | } | |
1311 | return 0; | |
1312 | } | |
1313 | ||
9697a559 | 1314 | static const char *unittest_path(int nr, enum overlay_type ovtype) |
d5e75500 PA |
1315 | { |
1316 | const char *base; | |
177d271c PA |
1317 | static char buf[256]; |
1318 | ||
d5e75500 PA |
1319 | switch (ovtype) { |
1320 | case PDEV_OVERLAY: | |
1321 | base = "/testcase-data/overlay-node/test-bus"; | |
1322 | break; | |
1323 | case I2C_OVERLAY: | |
1324 | base = "/testcase-data/overlay-node/test-bus/i2c-test-bus"; | |
1325 | break; | |
1326 | default: | |
1327 | buf[0] = '\0'; | |
1328 | return buf; | |
1329 | } | |
9697a559 | 1330 | snprintf(buf, sizeof(buf) - 1, "%s/test-unittest%d", base, nr); |
177d271c | 1331 | buf[sizeof(buf) - 1] = '\0'; |
177d271c PA |
1332 | return buf; |
1333 | } | |
1334 | ||
9697a559 | 1335 | static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype) |
d5e75500 PA |
1336 | { |
1337 | const char *path; | |
1338 | ||
9697a559 | 1339 | path = unittest_path(unittest_nr, ovtype); |
d5e75500 PA |
1340 | |
1341 | switch (ovtype) { | |
1342 | case PDEV_OVERLAY: | |
1343 | return of_path_platform_device_exists(path); | |
1344 | case I2C_OVERLAY: | |
1345 | return of_path_i2c_client_exists(path); | |
1346 | } | |
1347 | return 0; | |
1348 | } | |
1349 | ||
39a751a4 | 1350 | static const char *overlay_name_from_nr(int nr) |
177d271c PA |
1351 | { |
1352 | static char buf[256]; | |
1353 | ||
1354 | snprintf(buf, sizeof(buf) - 1, | |
39a751a4 | 1355 | "overlay_%d", nr); |
177d271c PA |
1356 | buf[sizeof(buf) - 1] = '\0'; |
1357 | ||
1358 | return buf; | |
1359 | } | |
1360 | ||
1361 | static const char *bus_path = "/testcase-data/overlay-node/test-bus"; | |
1362 | ||
492a22ac PA |
1363 | /* it is guaranteed that overlay ids are assigned in sequence */ |
1364 | #define MAX_UNITTEST_OVERLAYS 256 | |
1365 | static unsigned long overlay_id_bits[BITS_TO_LONGS(MAX_UNITTEST_OVERLAYS)]; | |
1366 | static int overlay_first_id = -1; | |
1367 | ||
1368 | static void of_unittest_track_overlay(int id) | |
1369 | { | |
1370 | if (overlay_first_id < 0) | |
1371 | overlay_first_id = id; | |
1372 | id -= overlay_first_id; | |
1373 | ||
1374 | /* we shouldn't need that many */ | |
1375 | BUG_ON(id >= MAX_UNITTEST_OVERLAYS); | |
1376 | overlay_id_bits[BIT_WORD(id)] |= BIT_MASK(id); | |
1377 | } | |
1378 | ||
1379 | static void of_unittest_untrack_overlay(int id) | |
1380 | { | |
1381 | if (overlay_first_id < 0) | |
1382 | return; | |
1383 | id -= overlay_first_id; | |
1384 | BUG_ON(id >= MAX_UNITTEST_OVERLAYS); | |
1385 | overlay_id_bits[BIT_WORD(id)] &= ~BIT_MASK(id); | |
1386 | } | |
1387 | ||
1388 | static void of_unittest_destroy_tracked_overlays(void) | |
1389 | { | |
24789c5c | 1390 | int id, ret, defers, ovcs_id; |
492a22ac PA |
1391 | |
1392 | if (overlay_first_id < 0) | |
1393 | return; | |
1394 | ||
1395 | /* try until no defers */ | |
1396 | do { | |
1397 | defers = 0; | |
1398 | /* remove in reverse order */ | |
1399 | for (id = MAX_UNITTEST_OVERLAYS - 1; id >= 0; id--) { | |
1400 | if (!(overlay_id_bits[BIT_WORD(id)] & BIT_MASK(id))) | |
1401 | continue; | |
1402 | ||
24789c5c FR |
1403 | ovcs_id = id + overlay_first_id; |
1404 | ret = of_overlay_remove(&ovcs_id); | |
815d74b3 SS |
1405 | if (ret == -ENODEV) { |
1406 | pr_warn("%s: no overlay to destroy for #%d\n", | |
1407 | __func__, id + overlay_first_id); | |
1408 | continue; | |
1409 | } | |
492a22ac PA |
1410 | if (ret != 0) { |
1411 | defers++; | |
1412 | pr_warn("%s: overlay destroy failed for #%d\n", | |
1413 | __func__, id + overlay_first_id); | |
1414 | continue; | |
1415 | } | |
1416 | ||
1417 | overlay_id_bits[BIT_WORD(id)] &= ~BIT_MASK(id); | |
1418 | } | |
1419 | } while (defers > 0); | |
1420 | } | |
1421 | ||
39a751a4 | 1422 | static int __init of_unittest_apply_overlay(int overlay_nr, int unittest_nr, |
177d271c PA |
1423 | int *overlay_id) |
1424 | { | |
39a751a4 | 1425 | const char *overlay_name; |
177d271c | 1426 | |
39a751a4 | 1427 | overlay_name = overlay_name_from_nr(overlay_nr); |
177d271c | 1428 | |
82747326 | 1429 | if (!overlay_data_apply(overlay_name, overlay_id)) { |
39a751a4 FR |
1430 | unittest(0, "could not apply overlay \"%s\"\n", |
1431 | overlay_name); | |
82747326 | 1432 | return -EFAULT; |
177d271c | 1433 | } |
24789c5c | 1434 | of_unittest_track_overlay(*overlay_id); |
177d271c | 1435 | |
54587be4 | 1436 | return 0; |
177d271c PA |
1437 | } |
1438 | ||
1439 | /* apply an overlay while checking before and after states */ | |
39a751a4 FR |
1440 | static int __init of_unittest_apply_overlay_check(int overlay_nr, |
1441 | int unittest_nr, int before, int after, | |
1442 | enum overlay_type ovtype) | |
177d271c | 1443 | { |
24789c5c | 1444 | int ret, ovcs_id; |
177d271c | 1445 | |
9697a559 WL |
1446 | /* unittest device must not be in before state */ |
1447 | if (of_unittest_device_exists(unittest_nr, ovtype) != before) { | |
39a751a4 FR |
1448 | unittest(0, "%s with device @\"%s\" %s\n", |
1449 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1450 | unittest_path(unittest_nr, ovtype), |
177d271c PA |
1451 | !before ? "enabled" : "disabled"); |
1452 | return -EINVAL; | |
1453 | } | |
1454 | ||
24789c5c FR |
1455 | ovcs_id = 0; |
1456 | ret = of_unittest_apply_overlay(overlay_nr, unittest_nr, &ovcs_id); | |
177d271c | 1457 | if (ret != 0) { |
9697a559 | 1458 | /* of_unittest_apply_overlay already called unittest() */ |
177d271c PA |
1459 | return ret; |
1460 | } | |
1461 | ||
9697a559 WL |
1462 | /* unittest device must be to set to after state */ |
1463 | if (of_unittest_device_exists(unittest_nr, ovtype) != after) { | |
39a751a4 FR |
1464 | unittest(0, "%s failed to create @\"%s\" %s\n", |
1465 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1466 | unittest_path(unittest_nr, ovtype), |
177d271c PA |
1467 | !after ? "enabled" : "disabled"); |
1468 | return -EINVAL; | |
1469 | } | |
1470 | ||
1471 | return 0; | |
1472 | } | |
1473 | ||
1474 | /* apply an overlay and then revert it while checking before, after states */ | |
39a751a4 | 1475 | static int __init of_unittest_apply_revert_overlay_check(int overlay_nr, |
9697a559 | 1476 | int unittest_nr, int before, int after, |
d5e75500 | 1477 | enum overlay_type ovtype) |
177d271c | 1478 | { |
24789c5c | 1479 | int ret, ovcs_id; |
177d271c | 1480 | |
9697a559 WL |
1481 | /* unittest device must be in before state */ |
1482 | if (of_unittest_device_exists(unittest_nr, ovtype) != before) { | |
39a751a4 FR |
1483 | unittest(0, "%s with device @\"%s\" %s\n", |
1484 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1485 | unittest_path(unittest_nr, ovtype), |
177d271c PA |
1486 | !before ? "enabled" : "disabled"); |
1487 | return -EINVAL; | |
1488 | } | |
1489 | ||
1490 | /* apply the overlay */ | |
24789c5c FR |
1491 | ovcs_id = 0; |
1492 | ret = of_unittest_apply_overlay(overlay_nr, unittest_nr, &ovcs_id); | |
177d271c | 1493 | if (ret != 0) { |
9697a559 | 1494 | /* of_unittest_apply_overlay already called unittest() */ |
177d271c PA |
1495 | return ret; |
1496 | } | |
1497 | ||
9697a559 WL |
1498 | /* unittest device must be in after state */ |
1499 | if (of_unittest_device_exists(unittest_nr, ovtype) != after) { | |
39a751a4 FR |
1500 | unittest(0, "%s failed to create @\"%s\" %s\n", |
1501 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1502 | unittest_path(unittest_nr, ovtype), |
177d271c PA |
1503 | !after ? "enabled" : "disabled"); |
1504 | return -EINVAL; | |
1505 | } | |
1506 | ||
24789c5c | 1507 | ret = of_overlay_remove(&ovcs_id); |
177d271c | 1508 | if (ret != 0) { |
39a751a4 FR |
1509 | unittest(0, "%s failed to be destroyed @\"%s\"\n", |
1510 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1511 | unittest_path(unittest_nr, ovtype)); |
177d271c PA |
1512 | return ret; |
1513 | } | |
1514 | ||
9697a559 WL |
1515 | /* unittest device must be again in before state */ |
1516 | if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) { | |
39a751a4 FR |
1517 | unittest(0, "%s with device @\"%s\" %s\n", |
1518 | overlay_name_from_nr(overlay_nr), | |
9697a559 | 1519 | unittest_path(unittest_nr, ovtype), |
177d271c PA |
1520 | !before ? "enabled" : "disabled"); |
1521 | return -EINVAL; | |
1522 | } | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | /* test activation of device */ | |
39a751a4 | 1528 | static void __init of_unittest_overlay_0(void) |
177d271c | 1529 | { |
177d271c | 1530 | /* device should enable */ |
06c46978 | 1531 | if (of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY)) |
177d271c PA |
1532 | return; |
1533 | ||
9697a559 | 1534 | unittest(1, "overlay test %d passed\n", 0); |
177d271c PA |
1535 | } |
1536 | ||
1537 | /* test deactivation of device */ | |
39a751a4 | 1538 | static void __init of_unittest_overlay_1(void) |
177d271c | 1539 | { |
177d271c | 1540 | /* device should disable */ |
06c46978 | 1541 | if (of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY)) |
177d271c PA |
1542 | return; |
1543 | ||
9697a559 | 1544 | unittest(1, "overlay test %d passed\n", 1); |
177d271c PA |
1545 | } |
1546 | ||
1547 | /* test activation of device */ | |
39a751a4 | 1548 | static void __init of_unittest_overlay_2(void) |
177d271c | 1549 | { |
177d271c | 1550 | /* device should enable */ |
06c46978 | 1551 | if (of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY)) |
177d271c PA |
1552 | return; |
1553 | ||
9697a559 | 1554 | unittest(1, "overlay test %d passed\n", 2); |
177d271c PA |
1555 | } |
1556 | ||
1557 | /* test deactivation of device */ | |
39a751a4 | 1558 | static void __init of_unittest_overlay_3(void) |
177d271c | 1559 | { |
177d271c | 1560 | /* device should disable */ |
06c46978 | 1561 | if (of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY)) |
177d271c PA |
1562 | return; |
1563 | ||
9697a559 | 1564 | unittest(1, "overlay test %d passed\n", 3); |
177d271c PA |
1565 | } |
1566 | ||
1567 | /* test activation of a full device node */ | |
39a751a4 | 1568 | static void __init of_unittest_overlay_4(void) |
177d271c | 1569 | { |
177d271c | 1570 | /* device should disable */ |
06c46978 | 1571 | if (of_unittest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY)) |
177d271c PA |
1572 | return; |
1573 | ||
9697a559 | 1574 | unittest(1, "overlay test %d passed\n", 4); |
177d271c PA |
1575 | } |
1576 | ||
1577 | /* test overlay apply/revert sequence */ | |
39a751a4 | 1578 | static void __init of_unittest_overlay_5(void) |
177d271c | 1579 | { |
177d271c | 1580 | /* device should disable */ |
06c46978 | 1581 | if (of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY)) |
177d271c PA |
1582 | return; |
1583 | ||
9697a559 | 1584 | unittest(1, "overlay test %d passed\n", 5); |
177d271c PA |
1585 | } |
1586 | ||
1587 | /* test overlay application in sequence */ | |
39a751a4 | 1588 | static void __init of_unittest_overlay_6(void) |
177d271c | 1589 | { |
06c46978 | 1590 | int i, ov_id[2], ovcs_id; |
9697a559 | 1591 | int overlay_nr = 6, unittest_nr = 6; |
177d271c | 1592 | int before = 0, after = 1; |
39a751a4 | 1593 | const char *overlay_name; |
177d271c | 1594 | |
9697a559 | 1595 | /* unittest device must be in before state */ |
177d271c | 1596 | for (i = 0; i < 2; i++) { |
9697a559 | 1597 | if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) |
177d271c | 1598 | != before) { |
39a751a4 FR |
1599 | unittest(0, "%s with device @\"%s\" %s\n", |
1600 | overlay_name_from_nr(overlay_nr + i), | |
9697a559 | 1601 | unittest_path(unittest_nr + i, |
d5e75500 | 1602 | PDEV_OVERLAY), |
177d271c PA |
1603 | !before ? "enabled" : "disabled"); |
1604 | return; | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | /* apply the overlays */ | |
1609 | for (i = 0; i < 2; i++) { | |
1610 | ||
39a751a4 | 1611 | overlay_name = overlay_name_from_nr(overlay_nr + i); |
177d271c | 1612 | |
06c46978 | 1613 | if (!overlay_data_apply(overlay_name, &ovcs_id)) { |
39a751a4 FR |
1614 | unittest(0, "could not apply overlay \"%s\"\n", |
1615 | overlay_name); | |
177d271c PA |
1616 | return; |
1617 | } | |
24789c5c | 1618 | ov_id[i] = ovcs_id; |
492a22ac | 1619 | of_unittest_track_overlay(ov_id[i]); |
177d271c PA |
1620 | } |
1621 | ||
1622 | for (i = 0; i < 2; i++) { | |
9697a559 WL |
1623 | /* unittest device must be in after state */ |
1624 | if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) | |
177d271c | 1625 | != after) { |
9697a559 | 1626 | unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n", |
39a751a4 | 1627 | overlay_name_from_nr(overlay_nr + i), |
9697a559 | 1628 | unittest_path(unittest_nr + i, |
d5e75500 | 1629 | PDEV_OVERLAY), |
177d271c PA |
1630 | !after ? "enabled" : "disabled"); |
1631 | return; | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | for (i = 1; i >= 0; i--) { | |
24789c5c | 1636 | ovcs_id = ov_id[i]; |
06c46978 | 1637 | if (of_overlay_remove(&ovcs_id)) { |
39a751a4 FR |
1638 | unittest(0, "%s failed destroy @\"%s\"\n", |
1639 | overlay_name_from_nr(overlay_nr + i), | |
9697a559 | 1640 | unittest_path(unittest_nr + i, |
d5e75500 | 1641 | PDEV_OVERLAY)); |
177d271c PA |
1642 | return; |
1643 | } | |
492a22ac | 1644 | of_unittest_untrack_overlay(ov_id[i]); |
177d271c PA |
1645 | } |
1646 | ||
1647 | for (i = 0; i < 2; i++) { | |
9697a559 WL |
1648 | /* unittest device must be again in before state */ |
1649 | if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY) | |
177d271c | 1650 | != before) { |
39a751a4 FR |
1651 | unittest(0, "%s with device @\"%s\" %s\n", |
1652 | overlay_name_from_nr(overlay_nr + i), | |
9697a559 | 1653 | unittest_path(unittest_nr + i, |
d5e75500 | 1654 | PDEV_OVERLAY), |
177d271c PA |
1655 | !before ? "enabled" : "disabled"); |
1656 | return; | |
1657 | } | |
1658 | } | |
1659 | ||
9697a559 | 1660 | unittest(1, "overlay test %d passed\n", 6); |
177d271c PA |
1661 | } |
1662 | ||
1663 | /* test overlay application in sequence */ | |
39a751a4 | 1664 | static void __init of_unittest_overlay_8(void) |
177d271c | 1665 | { |
06c46978 | 1666 | int i, ov_id[2], ovcs_id; |
9697a559 | 1667 | int overlay_nr = 8, unittest_nr = 8; |
39a751a4 | 1668 | const char *overlay_name; |
177d271c PA |
1669 | |
1670 | /* we don't care about device state in this test */ | |
1671 | ||
1672 | /* apply the overlays */ | |
1673 | for (i = 0; i < 2; i++) { | |
1674 | ||
39a751a4 | 1675 | overlay_name = overlay_name_from_nr(overlay_nr + i); |
177d271c | 1676 | |
bdb7013d | 1677 | if (!overlay_data_apply(overlay_name, &ovcs_id)) { |
39a751a4 FR |
1678 | unittest(0, "could not apply overlay \"%s\"\n", |
1679 | overlay_name); | |
177d271c PA |
1680 | return; |
1681 | } | |
24789c5c | 1682 | ov_id[i] = ovcs_id; |
492a22ac | 1683 | of_unittest_track_overlay(ov_id[i]); |
177d271c PA |
1684 | } |
1685 | ||
1686 | /* now try to remove first overlay (it should fail) */ | |
24789c5c | 1687 | ovcs_id = ov_id[0]; |
06c46978 | 1688 | if (!of_overlay_remove(&ovcs_id)) { |
39a751a4 FR |
1689 | unittest(0, "%s was destroyed @\"%s\"\n", |
1690 | overlay_name_from_nr(overlay_nr + 0), | |
9697a559 | 1691 | unittest_path(unittest_nr, |
d5e75500 | 1692 | PDEV_OVERLAY)); |
177d271c PA |
1693 | return; |
1694 | } | |
1695 | ||
1696 | /* removing them in order should work */ | |
1697 | for (i = 1; i >= 0; i--) { | |
24789c5c | 1698 | ovcs_id = ov_id[i]; |
06c46978 | 1699 | if (of_overlay_remove(&ovcs_id)) { |
39a751a4 FR |
1700 | unittest(0, "%s not destroyed @\"%s\"\n", |
1701 | overlay_name_from_nr(overlay_nr + i), | |
9697a559 | 1702 | unittest_path(unittest_nr, |
d5e75500 | 1703 | PDEV_OVERLAY)); |
177d271c PA |
1704 | return; |
1705 | } | |
492a22ac | 1706 | of_unittest_untrack_overlay(ov_id[i]); |
177d271c PA |
1707 | } |
1708 | ||
9697a559 | 1709 | unittest(1, "overlay test %d passed\n", 8); |
177d271c PA |
1710 | } |
1711 | ||
6b1271de | 1712 | /* test insertion of a bus with parent devices */ |
39a751a4 | 1713 | static void __init of_unittest_overlay_10(void) |
6b1271de PA |
1714 | { |
1715 | int ret; | |
1716 | char *child_path; | |
1717 | ||
1718 | /* device should disable */ | |
9697a559 WL |
1719 | ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY); |
1720 | if (unittest(ret == 0, | |
d5e75500 | 1721 | "overlay test %d failed; overlay application\n", 10)) |
6b1271de PA |
1722 | return; |
1723 | ||
9697a559 WL |
1724 | child_path = kasprintf(GFP_KERNEL, "%s/test-unittest101", |
1725 | unittest_path(10, PDEV_OVERLAY)); | |
1726 | if (unittest(child_path, "overlay test %d failed; kasprintf\n", 10)) | |
6b1271de PA |
1727 | return; |
1728 | ||
d5e75500 | 1729 | ret = of_path_device_type_exists(child_path, PDEV_OVERLAY); |
6b1271de | 1730 | kfree(child_path); |
54587be4 FR |
1731 | |
1732 | unittest(ret, "overlay test %d failed; no child device\n", 10); | |
6b1271de PA |
1733 | } |
1734 | ||
1735 | /* test insertion of a bus with parent devices (and revert) */ | |
39a751a4 | 1736 | static void __init of_unittest_overlay_11(void) |
6b1271de PA |
1737 | { |
1738 | int ret; | |
1739 | ||
1740 | /* device should disable */ | |
9697a559 | 1741 | ret = of_unittest_apply_revert_overlay_check(11, 11, 0, 1, |
d5e75500 | 1742 | PDEV_OVERLAY); |
54587be4 | 1743 | unittest(ret == 0, "overlay test %d failed; overlay apply\n", 11); |
d5e75500 PA |
1744 | } |
1745 | ||
4252de39 | 1746 | #if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY) |
d5e75500 | 1747 | |
9697a559 | 1748 | struct unittest_i2c_bus_data { |
d5e75500 PA |
1749 | struct platform_device *pdev; |
1750 | struct i2c_adapter adap; | |
1751 | }; | |
1752 | ||
9697a559 | 1753 | static int unittest_i2c_master_xfer(struct i2c_adapter *adap, |
d5e75500 PA |
1754 | struct i2c_msg *msgs, int num) |
1755 | { | |
9697a559 | 1756 | struct unittest_i2c_bus_data *std = i2c_get_adapdata(adap); |
d5e75500 PA |
1757 | |
1758 | (void)std; | |
1759 | ||
1760 | return num; | |
1761 | } | |
1762 | ||
9697a559 | 1763 | static u32 unittest_i2c_functionality(struct i2c_adapter *adap) |
d5e75500 PA |
1764 | { |
1765 | return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; | |
1766 | } | |
1767 | ||
9697a559 WL |
1768 | static const struct i2c_algorithm unittest_i2c_algo = { |
1769 | .master_xfer = unittest_i2c_master_xfer, | |
1770 | .functionality = unittest_i2c_functionality, | |
d5e75500 PA |
1771 | }; |
1772 | ||
9697a559 | 1773 | static int unittest_i2c_bus_probe(struct platform_device *pdev) |
d5e75500 PA |
1774 | { |
1775 | struct device *dev = &pdev->dev; | |
1776 | struct device_node *np = dev->of_node; | |
9697a559 | 1777 | struct unittest_i2c_bus_data *std; |
d5e75500 PA |
1778 | struct i2c_adapter *adap; |
1779 | int ret; | |
1780 | ||
1781 | if (np == NULL) { | |
1782 | dev_err(dev, "No OF data for device\n"); | |
1783 | return -EINVAL; | |
1784 | ||
1785 | } | |
1786 | ||
0d638a07 | 1787 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
d5e75500 PA |
1788 | |
1789 | std = devm_kzalloc(dev, sizeof(*std), GFP_KERNEL); | |
1790 | if (!std) { | |
9697a559 | 1791 | dev_err(dev, "Failed to allocate unittest i2c data\n"); |
d5e75500 PA |
1792 | return -ENOMEM; |
1793 | } | |
1794 | ||
1795 | /* link them together */ | |
1796 | std->pdev = pdev; | |
1797 | platform_set_drvdata(pdev, std); | |
1798 | ||
1799 | adap = &std->adap; | |
1800 | i2c_set_adapdata(adap, std); | |
1801 | adap->nr = -1; | |
1802 | strlcpy(adap->name, pdev->name, sizeof(adap->name)); | |
1803 | adap->class = I2C_CLASS_DEPRECATED; | |
9697a559 | 1804 | adap->algo = &unittest_i2c_algo; |
d5e75500 PA |
1805 | adap->dev.parent = dev; |
1806 | adap->dev.of_node = dev->of_node; | |
1807 | adap->timeout = 5 * HZ; | |
1808 | adap->retries = 3; | |
1809 | ||
1810 | ret = i2c_add_numbered_adapter(adap); | |
1811 | if (ret != 0) { | |
1812 | dev_err(dev, "Failed to add I2C adapter\n"); | |
1813 | return ret; | |
1814 | } | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
9697a559 | 1819 | static int unittest_i2c_bus_remove(struct platform_device *pdev) |
d5e75500 PA |
1820 | { |
1821 | struct device *dev = &pdev->dev; | |
1822 | struct device_node *np = dev->of_node; | |
9697a559 | 1823 | struct unittest_i2c_bus_data *std = platform_get_drvdata(pdev); |
d5e75500 | 1824 | |
0d638a07 | 1825 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
d5e75500 PA |
1826 | i2c_del_adapter(&std->adap); |
1827 | ||
1828 | return 0; | |
1829 | } | |
1830 | ||
a2166ca5 | 1831 | static const struct of_device_id unittest_i2c_bus_match[] = { |
9697a559 | 1832 | { .compatible = "unittest-i2c-bus", }, |
d5e75500 PA |
1833 | {}, |
1834 | }; | |
1835 | ||
9697a559 WL |
1836 | static struct platform_driver unittest_i2c_bus_driver = { |
1837 | .probe = unittest_i2c_bus_probe, | |
1838 | .remove = unittest_i2c_bus_remove, | |
d5e75500 | 1839 | .driver = { |
9697a559 WL |
1840 | .name = "unittest-i2c-bus", |
1841 | .of_match_table = of_match_ptr(unittest_i2c_bus_match), | |
d5e75500 PA |
1842 | }, |
1843 | }; | |
1844 | ||
9697a559 | 1845 | static int unittest_i2c_dev_probe(struct i2c_client *client, |
d5e75500 PA |
1846 | const struct i2c_device_id *id) |
1847 | { | |
1848 | struct device *dev = &client->dev; | |
1849 | struct device_node *np = client->dev.of_node; | |
1850 | ||
1851 | if (!np) { | |
1852 | dev_err(dev, "No OF node\n"); | |
1853 | return -EINVAL; | |
1854 | } | |
1855 | ||
0d638a07 | 1856 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
d5e75500 PA |
1857 | |
1858 | return 0; | |
1859 | }; | |
1860 | ||
9697a559 | 1861 | static int unittest_i2c_dev_remove(struct i2c_client *client) |
d5e75500 PA |
1862 | { |
1863 | struct device *dev = &client->dev; | |
1864 | struct device_node *np = client->dev.of_node; | |
1865 | ||
0d638a07 | 1866 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
d5e75500 PA |
1867 | return 0; |
1868 | } | |
1869 | ||
9697a559 WL |
1870 | static const struct i2c_device_id unittest_i2c_dev_id[] = { |
1871 | { .name = "unittest-i2c-dev" }, | |
d5e75500 PA |
1872 | { } |
1873 | }; | |
1874 | ||
9697a559 | 1875 | static struct i2c_driver unittest_i2c_dev_driver = { |
d5e75500 | 1876 | .driver = { |
9697a559 | 1877 | .name = "unittest-i2c-dev", |
d5e75500 | 1878 | }, |
9697a559 WL |
1879 | .probe = unittest_i2c_dev_probe, |
1880 | .remove = unittest_i2c_dev_remove, | |
1881 | .id_table = unittest_i2c_dev_id, | |
d5e75500 PA |
1882 | }; |
1883 | ||
4252de39 | 1884 | #if IS_BUILTIN(CONFIG_I2C_MUX) |
d5e75500 | 1885 | |
b6e3b717 | 1886 | static int unittest_i2c_mux_select_chan(struct i2c_mux_core *muxc, u32 chan) |
d5e75500 PA |
1887 | { |
1888 | return 0; | |
1889 | } | |
1890 | ||
9697a559 | 1891 | static int unittest_i2c_mux_probe(struct i2c_client *client, |
d5e75500 PA |
1892 | const struct i2c_device_id *id) |
1893 | { | |
06c46978 | 1894 | int i, nchans; |
d5e75500 PA |
1895 | struct device *dev = &client->dev; |
1896 | struct i2c_adapter *adap = to_i2c_adapter(dev->parent); | |
1897 | struct device_node *np = client->dev.of_node, *child; | |
b6e3b717 | 1898 | struct i2c_mux_core *muxc; |
d5e75500 PA |
1899 | u32 reg, max_reg; |
1900 | ||
0d638a07 | 1901 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
d5e75500 PA |
1902 | |
1903 | if (!np) { | |
1904 | dev_err(dev, "No OF node\n"); | |
1905 | return -EINVAL; | |
1906 | } | |
1907 | ||
1908 | max_reg = (u32)-1; | |
1909 | for_each_child_of_node(np, child) { | |
06c46978 | 1910 | if (of_property_read_u32(child, "reg", ®)) |
d5e75500 PA |
1911 | continue; |
1912 | if (max_reg == (u32)-1 || reg > max_reg) | |
1913 | max_reg = reg; | |
1914 | } | |
1915 | nchans = max_reg == (u32)-1 ? 0 : max_reg + 1; | |
1916 | if (nchans == 0) { | |
1917 | dev_err(dev, "No channels\n"); | |
1918 | return -EINVAL; | |
1919 | } | |
1920 | ||
b6e3b717 PR |
1921 | muxc = i2c_mux_alloc(adap, dev, nchans, 0, 0, |
1922 | unittest_i2c_mux_select_chan, NULL); | |
1923 | if (!muxc) | |
d5e75500 | 1924 | return -ENOMEM; |
d5e75500 | 1925 | for (i = 0; i < nchans; i++) { |
06c46978 | 1926 | if (i2c_mux_add_adapter(muxc, 0, i, 0)) { |
d5e75500 | 1927 | dev_err(dev, "Failed to register mux #%d\n", i); |
b6e3b717 | 1928 | i2c_mux_del_adapters(muxc); |
d5e75500 PA |
1929 | return -ENODEV; |
1930 | } | |
1931 | } | |
1932 | ||
b6e3b717 | 1933 | i2c_set_clientdata(client, muxc); |
d5e75500 PA |
1934 | |
1935 | return 0; | |
1936 | }; | |
1937 | ||
9697a559 | 1938 | static int unittest_i2c_mux_remove(struct i2c_client *client) |
d5e75500 PA |
1939 | { |
1940 | struct device *dev = &client->dev; | |
1941 | struct device_node *np = client->dev.of_node; | |
b6e3b717 | 1942 | struct i2c_mux_core *muxc = i2c_get_clientdata(client); |
d5e75500 | 1943 | |
0d638a07 | 1944 | dev_dbg(dev, "%s for node @%pOF\n", __func__, np); |
b6e3b717 | 1945 | i2c_mux_del_adapters(muxc); |
d5e75500 PA |
1946 | return 0; |
1947 | } | |
1948 | ||
9697a559 WL |
1949 | static const struct i2c_device_id unittest_i2c_mux_id[] = { |
1950 | { .name = "unittest-i2c-mux" }, | |
d5e75500 PA |
1951 | { } |
1952 | }; | |
1953 | ||
9697a559 | 1954 | static struct i2c_driver unittest_i2c_mux_driver = { |
d5e75500 | 1955 | .driver = { |
9697a559 | 1956 | .name = "unittest-i2c-mux", |
d5e75500 | 1957 | }, |
9697a559 WL |
1958 | .probe = unittest_i2c_mux_probe, |
1959 | .remove = unittest_i2c_mux_remove, | |
1960 | .id_table = unittest_i2c_mux_id, | |
d5e75500 PA |
1961 | }; |
1962 | ||
1963 | #endif | |
1964 | ||
9697a559 | 1965 | static int of_unittest_overlay_i2c_init(void) |
d5e75500 PA |
1966 | { |
1967 | int ret; | |
1968 | ||
9697a559 WL |
1969 | ret = i2c_add_driver(&unittest_i2c_dev_driver); |
1970 | if (unittest(ret == 0, | |
1971 | "could not register unittest i2c device driver\n")) | |
d5e75500 PA |
1972 | return ret; |
1973 | ||
9697a559 WL |
1974 | ret = platform_driver_register(&unittest_i2c_bus_driver); |
1975 | if (unittest(ret == 0, | |
1976 | "could not register unittest i2c bus driver\n")) | |
d5e75500 PA |
1977 | return ret; |
1978 | ||
4252de39 | 1979 | #if IS_BUILTIN(CONFIG_I2C_MUX) |
9697a559 WL |
1980 | ret = i2c_add_driver(&unittest_i2c_mux_driver); |
1981 | if (unittest(ret == 0, | |
1982 | "could not register unittest i2c mux driver\n")) | |
d5e75500 PA |
1983 | return ret; |
1984 | #endif | |
1985 | ||
1986 | return 0; | |
1987 | } | |
1988 | ||
9697a559 | 1989 | static void of_unittest_overlay_i2c_cleanup(void) |
d5e75500 | 1990 | { |
4252de39 | 1991 | #if IS_BUILTIN(CONFIG_I2C_MUX) |
9697a559 | 1992 | i2c_del_driver(&unittest_i2c_mux_driver); |
d5e75500 | 1993 | #endif |
9697a559 WL |
1994 | platform_driver_unregister(&unittest_i2c_bus_driver); |
1995 | i2c_del_driver(&unittest_i2c_dev_driver); | |
d5e75500 PA |
1996 | } |
1997 | ||
39a751a4 | 1998 | static void __init of_unittest_overlay_i2c_12(void) |
d5e75500 | 1999 | { |
d5e75500 | 2000 | /* device should enable */ |
06c46978 | 2001 | if (of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY)) |
d5e75500 PA |
2002 | return; |
2003 | ||
9697a559 | 2004 | unittest(1, "overlay test %d passed\n", 12); |
d5e75500 PA |
2005 | } |
2006 | ||
2007 | /* test deactivation of device */ | |
39a751a4 | 2008 | static void __init of_unittest_overlay_i2c_13(void) |
d5e75500 | 2009 | { |
d5e75500 | 2010 | /* device should disable */ |
06c46978 | 2011 | if (of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY)) |
6b1271de | 2012 | return; |
d5e75500 | 2013 | |
9697a559 | 2014 | unittest(1, "overlay test %d passed\n", 13); |
d5e75500 PA |
2015 | } |
2016 | ||
2017 | /* just check for i2c mux existence */ | |
9697a559 | 2018 | static void of_unittest_overlay_i2c_14(void) |
d5e75500 | 2019 | { |
6b1271de PA |
2020 | } |
2021 | ||
39a751a4 | 2022 | static void __init of_unittest_overlay_i2c_15(void) |
d5e75500 | 2023 | { |
d5e75500 | 2024 | /* device should enable */ |
06c46978 | 2025 | if (of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY)) |
d5e75500 PA |
2026 | return; |
2027 | ||
9697a559 | 2028 | unittest(1, "overlay test %d passed\n", 15); |
d5e75500 PA |
2029 | } |
2030 | ||
2031 | #else | |
2032 | ||
9697a559 WL |
2033 | static inline void of_unittest_overlay_i2c_14(void) { } |
2034 | static inline void of_unittest_overlay_i2c_15(void) { } | |
d5e75500 PA |
2035 | |
2036 | #endif | |
2037 | ||
9697a559 | 2038 | static void __init of_unittest_overlay(void) |
177d271c PA |
2039 | { |
2040 | struct device_node *bus_np = NULL; | |
177d271c | 2041 | |
06c46978 | 2042 | if (platform_driver_register(&unittest_driver)) { |
9697a559 | 2043 | unittest(0, "could not register unittest driver\n"); |
177d271c PA |
2044 | goto out; |
2045 | } | |
2046 | ||
2047 | bus_np = of_find_node_by_path(bus_path); | |
2048 | if (bus_np == NULL) { | |
9697a559 | 2049 | unittest(0, "could not find bus_path \"%s\"\n", bus_path); |
177d271c PA |
2050 | goto out; |
2051 | } | |
2052 | ||
06c46978 | 2053 | if (of_platform_default_populate(bus_np, NULL, NULL)) { |
9697a559 | 2054 | unittest(0, "could not populate bus @ \"%s\"\n", bus_path); |
177d271c PA |
2055 | goto out; |
2056 | } | |
2057 | ||
9697a559 WL |
2058 | if (!of_unittest_device_exists(100, PDEV_OVERLAY)) { |
2059 | unittest(0, "could not find unittest0 @ \"%s\"\n", | |
2060 | unittest_path(100, PDEV_OVERLAY)); | |
177d271c PA |
2061 | goto out; |
2062 | } | |
2063 | ||
9697a559 WL |
2064 | if (of_unittest_device_exists(101, PDEV_OVERLAY)) { |
2065 | unittest(0, "unittest1 @ \"%s\" should not exist\n", | |
2066 | unittest_path(101, PDEV_OVERLAY)); | |
177d271c PA |
2067 | goto out; |
2068 | } | |
2069 | ||
9697a559 | 2070 | unittest(1, "basic infrastructure of overlays passed"); |
177d271c PA |
2071 | |
2072 | /* tests in sequence */ | |
9697a559 WL |
2073 | of_unittest_overlay_0(); |
2074 | of_unittest_overlay_1(); | |
2075 | of_unittest_overlay_2(); | |
2076 | of_unittest_overlay_3(); | |
2077 | of_unittest_overlay_4(); | |
2078 | of_unittest_overlay_5(); | |
2079 | of_unittest_overlay_6(); | |
2080 | of_unittest_overlay_8(); | |
2081 | ||
2082 | of_unittest_overlay_10(); | |
2083 | of_unittest_overlay_11(); | |
6b1271de | 2084 | |
4252de39 | 2085 | #if IS_BUILTIN(CONFIG_I2C) |
9697a559 | 2086 | if (unittest(of_unittest_overlay_i2c_init() == 0, "i2c init failed\n")) |
d5e75500 PA |
2087 | goto out; |
2088 | ||
9697a559 WL |
2089 | of_unittest_overlay_i2c_12(); |
2090 | of_unittest_overlay_i2c_13(); | |
2091 | of_unittest_overlay_i2c_14(); | |
2092 | of_unittest_overlay_i2c_15(); | |
d5e75500 | 2093 | |
9697a559 | 2094 | of_unittest_overlay_i2c_cleanup(); |
d5e75500 PA |
2095 | #endif |
2096 | ||
492a22ac PA |
2097 | of_unittest_destroy_tracked_overlays(); |
2098 | ||
177d271c PA |
2099 | out: |
2100 | of_node_put(bus_np); | |
2101 | } | |
2102 | ||
2103 | #else | |
9697a559 | 2104 | static inline void __init of_unittest_overlay(void) { } |
177d271c PA |
2105 | #endif |
2106 | ||
60a0004c FR |
2107 | #ifdef CONFIG_OF_OVERLAY |
2108 | ||
81d0848f FR |
2109 | /* |
2110 | * __dtb_ot_begin[] and __dtb_ot_end[] are created by cmd_dt_S_dtb | |
2111 | * in scripts/Makefile.lib | |
2112 | */ | |
2113 | ||
2114 | #define OVERLAY_INFO_EXTERN(name) \ | |
2115 | extern uint8_t __dtb_##name##_begin[]; \ | |
2116 | extern uint8_t __dtb_##name##_end[] | |
2117 | ||
39a751a4 FR |
2118 | #define OVERLAY_INFO(overlay_name, expected) \ |
2119 | { .dtb_begin = __dtb_##overlay_name##_begin, \ | |
2120 | .dtb_end = __dtb_##overlay_name##_end, \ | |
2121 | .expected_result = expected, \ | |
2122 | .name = #overlay_name, \ | |
81d0848f FR |
2123 | } |
2124 | ||
2125 | struct overlay_info { | |
39a751a4 FR |
2126 | uint8_t *dtb_begin; |
2127 | uint8_t *dtb_end; | |
2128 | int expected_result; | |
2129 | int overlay_id; | |
2130 | char *name; | |
81d0848f FR |
2131 | }; |
2132 | ||
2133 | OVERLAY_INFO_EXTERN(overlay_base); | |
2134 | OVERLAY_INFO_EXTERN(overlay); | |
39a751a4 FR |
2135 | OVERLAY_INFO_EXTERN(overlay_0); |
2136 | OVERLAY_INFO_EXTERN(overlay_1); | |
2137 | OVERLAY_INFO_EXTERN(overlay_2); | |
2138 | OVERLAY_INFO_EXTERN(overlay_3); | |
2139 | OVERLAY_INFO_EXTERN(overlay_4); | |
2140 | OVERLAY_INFO_EXTERN(overlay_5); | |
2141 | OVERLAY_INFO_EXTERN(overlay_6); | |
2142 | OVERLAY_INFO_EXTERN(overlay_7); | |
2143 | OVERLAY_INFO_EXTERN(overlay_8); | |
2144 | OVERLAY_INFO_EXTERN(overlay_9); | |
2145 | OVERLAY_INFO_EXTERN(overlay_10); | |
2146 | OVERLAY_INFO_EXTERN(overlay_11); | |
2147 | OVERLAY_INFO_EXTERN(overlay_12); | |
2148 | OVERLAY_INFO_EXTERN(overlay_13); | |
2149 | OVERLAY_INFO_EXTERN(overlay_15); | |
81d0848f | 2150 | OVERLAY_INFO_EXTERN(overlay_bad_phandle); |
60a0004c | 2151 | OVERLAY_INFO_EXTERN(overlay_bad_symbol); |
81d0848f FR |
2152 | |
2153 | /* order of entries is hard-coded into users of overlays[] */ | |
2154 | static struct overlay_info overlays[] = { | |
2155 | OVERLAY_INFO(overlay_base, -9999), | |
2156 | OVERLAY_INFO(overlay, 0), | |
39a751a4 FR |
2157 | OVERLAY_INFO(overlay_0, 0), |
2158 | OVERLAY_INFO(overlay_1, 0), | |
2159 | OVERLAY_INFO(overlay_2, 0), | |
2160 | OVERLAY_INFO(overlay_3, 0), | |
2161 | OVERLAY_INFO(overlay_4, 0), | |
2162 | OVERLAY_INFO(overlay_5, 0), | |
2163 | OVERLAY_INFO(overlay_6, 0), | |
2164 | OVERLAY_INFO(overlay_7, 0), | |
2165 | OVERLAY_INFO(overlay_8, 0), | |
2166 | OVERLAY_INFO(overlay_9, 0), | |
2167 | OVERLAY_INFO(overlay_10, 0), | |
2168 | OVERLAY_INFO(overlay_11, 0), | |
2169 | OVERLAY_INFO(overlay_12, 0), | |
2170 | OVERLAY_INFO(overlay_13, 0), | |
2171 | OVERLAY_INFO(overlay_15, 0), | |
81d0848f | 2172 | OVERLAY_INFO(overlay_bad_phandle, -EINVAL), |
60a0004c | 2173 | OVERLAY_INFO(overlay_bad_symbol, -EINVAL), |
81d0848f FR |
2174 | {} |
2175 | }; | |
2176 | ||
2177 | static struct device_node *overlay_base_root; | |
2178 | ||
0fa1c579 RH |
2179 | static void * __init dt_alloc_memory(u64 size, u64 align) |
2180 | { | |
2181 | return memblock_virt_alloc(size, align); | |
2182 | } | |
2183 | ||
81d0848f FR |
2184 | /* |
2185 | * Create base device tree for the overlay unittest. | |
2186 | * | |
2187 | * This is called from very early boot code. | |
2188 | * | |
2189 | * Do as much as possible the same way as done in __unflatten_device_tree | |
2190 | * and other early boot steps for the normal FDT so that the overlay base | |
2191 | * unflattened tree will have the same characteristics as the real tree | |
2192 | * (such as having memory allocated by the early allocator). The goal | |
2193 | * is to test "the real thing" as much as possible, and test "test setup | |
2194 | * code" as little as possible. | |
2195 | * | |
2196 | * Have to stop before resolving phandles, because that uses kmalloc. | |
2197 | */ | |
2198 | void __init unittest_unflatten_overlay_base(void) | |
2199 | { | |
2200 | struct overlay_info *info; | |
2201 | u32 data_size; | |
39a751a4 | 2202 | void *new_fdt; |
81d0848f FR |
2203 | u32 size; |
2204 | ||
2205 | info = &overlays[0]; | |
2206 | ||
2207 | if (info->expected_result != -9999) { | |
2208 | pr_err("No dtb 'overlay_base' to attach\n"); | |
2209 | return; | |
2210 | } | |
2211 | ||
2212 | data_size = info->dtb_end - info->dtb_begin; | |
2213 | if (!data_size) { | |
2214 | pr_err("No dtb 'overlay_base' to attach\n"); | |
2215 | return; | |
2216 | } | |
2217 | ||
2218 | size = fdt_totalsize(info->dtb_begin); | |
2219 | if (size != data_size) { | |
2220 | pr_err("dtb 'overlay_base' header totalsize != actual size"); | |
2221 | return; | |
2222 | } | |
2223 | ||
39a751a4 FR |
2224 | new_fdt = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE)); |
2225 | if (!new_fdt) { | |
81d0848f FR |
2226 | pr_err("alloc for dtb 'overlay_base' failed"); |
2227 | return; | |
2228 | } | |
2229 | ||
39a751a4 | 2230 | memcpy(new_fdt, info->dtb_begin, size); |
81d0848f | 2231 | |
39a751a4 | 2232 | __unflatten_device_tree(new_fdt, NULL, &overlay_base_root, |
0fa1c579 | 2233 | dt_alloc_memory, true); |
81d0848f FR |
2234 | } |
2235 | ||
2236 | /* | |
2237 | * The purpose of of_unittest_overlay_data_add is to add an | |
2238 | * overlay in the normal fashion. This is a test of the whole | |
2239 | * picture, instead of testing individual elements. | |
2240 | * | |
2241 | * A secondary purpose is to be able to verify that the contents of | |
2242 | * /proc/device-tree/ contains the updated structure and values from | |
2243 | * the overlay. That must be verified separately in user space. | |
2244 | * | |
2245 | * Return 0 on unexpected error. | |
2246 | */ | |
39a751a4 | 2247 | static int __init overlay_data_apply(const char *overlay_name, int *overlay_id) |
81d0848f FR |
2248 | { |
2249 | struct overlay_info *info; | |
39a751a4 | 2250 | int found = 0; |
81d0848f FR |
2251 | int k; |
2252 | int ret; | |
2253 | u32 size; | |
81d0848f | 2254 | |
39a751a4 FR |
2255 | for (k = 0, info = overlays; info && info->name; info++, k++) { |
2256 | if (!strcmp(overlay_name, info->name)) { | |
2257 | found = 1; | |
81d0848f | 2258 | break; |
39a751a4 | 2259 | } |
81d0848f | 2260 | } |
39a751a4 FR |
2261 | if (!found) { |
2262 | pr_err("no overlay data for %s\n", overlay_name); | |
81d0848f | 2263 | return 0; |
39a751a4 | 2264 | } |
81d0848f FR |
2265 | |
2266 | size = info->dtb_end - info->dtb_begin; | |
54587be4 | 2267 | if (!size) |
39a751a4 | 2268 | pr_err("no overlay data for %s\n", overlay_name); |
81d0848f | 2269 | |
39a751a4 FR |
2270 | ret = of_overlay_fdt_apply(info->dtb_begin, size, &info->overlay_id); |
2271 | if (overlay_id) | |
2272 | *overlay_id = info->overlay_id; | |
2273 | if (ret < 0) | |
2274 | goto out; | |
81d0848f | 2275 | |
39a751a4 | 2276 | pr_debug("%s applied\n", overlay_name); |
81d0848f FR |
2277 | |
2278 | out: | |
39a751a4 FR |
2279 | if (ret != info->expected_result) |
2280 | pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n", | |
2281 | info->expected_result, ret, overlay_name); | |
2282 | ||
81d0848f FR |
2283 | return (ret == info->expected_result); |
2284 | } | |
2285 | ||
2286 | /* | |
2287 | * The purpose of of_unittest_overlay_high_level is to add an overlay | |
2288 | * in the normal fashion. This is a test of the whole picture, | |
2289 | * instead of individual elements. | |
2290 | * | |
2291 | * The first part of the function is _not_ normal overlay usage; it is | |
2292 | * finishing splicing the base overlay device tree into the live tree. | |
2293 | */ | |
2294 | static __init void of_unittest_overlay_high_level(void) | |
2295 | { | |
2296 | struct device_node *last_sibling; | |
2297 | struct device_node *np; | |
2298 | struct device_node *of_symbols; | |
2299 | struct device_node *overlay_base_symbols; | |
2300 | struct device_node **pprev; | |
2301 | struct property *prop; | |
81d0848f FR |
2302 | |
2303 | if (!overlay_base_root) { | |
2304 | unittest(0, "overlay_base_root not initialized\n"); | |
2305 | return; | |
2306 | } | |
2307 | ||
2308 | /* | |
2309 | * Could not fixup phandles in unittest_unflatten_overlay_base() | |
2310 | * because kmalloc() was not yet available. | |
2311 | */ | |
f948d6d8 | 2312 | of_overlay_mutex_lock(); |
81d0848f | 2313 | of_resolve_phandles(overlay_base_root); |
f948d6d8 FR |
2314 | of_overlay_mutex_unlock(); |
2315 | ||
81d0848f FR |
2316 | |
2317 | /* | |
2318 | * do not allow overlay_base to duplicate any node already in | |
2319 | * tree, this greatly simplifies the code | |
2320 | */ | |
2321 | ||
2322 | /* | |
2323 | * remove overlay_base_root node "__local_fixups", after | |
2324 | * being used by of_resolve_phandles() | |
2325 | */ | |
2326 | pprev = &overlay_base_root->child; | |
2327 | for (np = overlay_base_root->child; np; np = np->sibling) { | |
2328 | if (!of_node_cmp(np->name, "__local_fixups__")) { | |
2329 | *pprev = np->sibling; | |
2330 | break; | |
2331 | } | |
2332 | pprev = &np->sibling; | |
2333 | } | |
2334 | ||
2335 | /* remove overlay_base_root node "__symbols__" if in live tree */ | |
2336 | of_symbols = of_get_child_by_name(of_root, "__symbols__"); | |
2337 | if (of_symbols) { | |
2338 | /* will have to graft properties from node into live tree */ | |
2339 | pprev = &overlay_base_root->child; | |
2340 | for (np = overlay_base_root->child; np; np = np->sibling) { | |
2341 | if (!of_node_cmp(np->name, "__symbols__")) { | |
2342 | overlay_base_symbols = np; | |
2343 | *pprev = np->sibling; | |
2344 | break; | |
2345 | } | |
2346 | pprev = &np->sibling; | |
2347 | } | |
2348 | } | |
2349 | ||
2350 | for (np = overlay_base_root->child; np; np = np->sibling) { | |
2351 | if (of_get_child_by_name(of_root, np->name)) { | |
2352 | unittest(0, "illegal node name in overlay_base %s", | |
2353 | np->name); | |
2354 | return; | |
2355 | } | |
2356 | } | |
2357 | ||
2358 | /* | |
2359 | * overlay 'overlay_base' is not allowed to have root | |
2360 | * properties, so only need to splice nodes into main device tree. | |
2361 | * | |
2362 | * root node of *overlay_base_root will not be freed, it is lost | |
2363 | * memory. | |
2364 | */ | |
2365 | ||
2366 | for (np = overlay_base_root->child; np; np = np->sibling) | |
2367 | np->parent = of_root; | |
2368 | ||
2369 | mutex_lock(&of_mutex); | |
2370 | ||
ee320b33 | 2371 | for (last_sibling = np = of_root->child; np; np = np->sibling) |
81d0848f FR |
2372 | last_sibling = np; |
2373 | ||
2374 | if (last_sibling) | |
2375 | last_sibling->sibling = overlay_base_root->child; | |
2376 | else | |
2377 | of_root->child = overlay_base_root->child; | |
2378 | ||
2379 | for_each_of_allnodes_from(overlay_base_root, np) | |
2380 | __of_attach_node_sysfs(np); | |
2381 | ||
2382 | if (of_symbols) { | |
39a751a4 | 2383 | struct property *new_prop; |
81d0848f | 2384 | for_each_property_of_node(overlay_base_symbols, prop) { |
39a751a4 FR |
2385 | |
2386 | new_prop = __of_prop_dup(prop, GFP_KERNEL); | |
2387 | if (!new_prop) { | |
2388 | unittest(0, "__of_prop_dup() of '%s' from overlay_base node __symbols__", | |
2389 | prop->name); | |
2390 | goto err_unlock; | |
2391 | } | |
06c46978 FR |
2392 | if (__of_add_property(of_symbols, new_prop)) { |
2393 | /* "name" auto-generated by unflatten */ | |
2394 | if (!strcmp(new_prop->name, "name")) | |
39a751a4 | 2395 | continue; |
39a751a4 | 2396 | unittest(0, "duplicate property '%s' in overlay_base node __symbols__", |
81d0848f | 2397 | prop->name); |
8756cd1d | 2398 | goto err_unlock; |
81d0848f | 2399 | } |
06c46978 | 2400 | if (__of_add_property_sysfs(of_symbols, new_prop)) { |
39a751a4 | 2401 | unittest(0, "unable to add property '%s' in overlay_base node __symbols__ to sysfs", |
81d0848f | 2402 | prop->name); |
8756cd1d | 2403 | goto err_unlock; |
81d0848f FR |
2404 | } |
2405 | } | |
2406 | } | |
2407 | ||
2408 | mutex_unlock(&of_mutex); | |
2409 | ||
2410 | ||
2411 | /* now do the normal overlay usage test */ | |
2412 | ||
39a751a4 | 2413 | unittest(overlay_data_apply("overlay", NULL), |
81d0848f FR |
2414 | "Adding overlay 'overlay' failed\n"); |
2415 | ||
39a751a4 | 2416 | unittest(overlay_data_apply("overlay_bad_phandle", NULL), |
81d0848f | 2417 | "Adding overlay 'overlay_bad_phandle' failed\n"); |
60a0004c | 2418 | |
39a751a4 | 2419 | unittest(overlay_data_apply("overlay_bad_symbol", NULL), |
60a0004c FR |
2420 | "Adding overlay 'overlay_bad_symbol' failed\n"); |
2421 | ||
8756cd1d DC |
2422 | return; |
2423 | ||
2424 | err_unlock: | |
2425 | mutex_unlock(&of_mutex); | |
81d0848f FR |
2426 | } |
2427 | ||
2428 | #else | |
2429 | ||
2430 | static inline __init void of_unittest_overlay_high_level(void) {} | |
2431 | ||
2432 | #endif | |
2433 | ||
9697a559 | 2434 | static int __init of_unittest(void) |
53a42093 GL |
2435 | { |
2436 | struct device_node *np; | |
ae9304c9 GM |
2437 | int res; |
2438 | ||
9697a559 WL |
2439 | /* adding data for unittest */ |
2440 | res = unittest_data_add(); | |
ae9304c9 GM |
2441 | if (res) |
2442 | return res; | |
788ec2fc GL |
2443 | if (!of_aliases) |
2444 | of_aliases = of_find_node_by_path("/aliases"); | |
53a42093 GL |
2445 | |
2446 | np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); | |
2447 | if (!np) { | |
2448 | pr_info("No testcase data in device tree; not running tests\n"); | |
2449 | return 0; | |
2450 | } | |
2451 | of_node_put(np); | |
2452 | ||
9697a559 WL |
2453 | pr_info("start of unittest - you will see error messages\n"); |
2454 | of_unittest_check_tree_linkage(); | |
2455 | of_unittest_check_phandles(); | |
2456 | of_unittest_find_node_by_name(); | |
2457 | of_unittest_dynamic(); | |
2458 | of_unittest_parse_phandle_with_args(); | |
357aa4b6 | 2459 | of_unittest_parse_phandle_with_args_map(); |
ce4fecf1 | 2460 | of_unittest_printf(); |
9697a559 WL |
2461 | of_unittest_property_string(); |
2462 | of_unittest_property_copy(); | |
2463 | of_unittest_changeset(); | |
2464 | of_unittest_parse_interrupts(); | |
2465 | of_unittest_parse_interrupts_extended(); | |
2466 | of_unittest_match_node(); | |
2467 | of_unittest_platform_populate(); | |
2468 | of_unittest_overlay(); | |
ae9304c9 | 2469 | |
f2051d6a | 2470 | /* Double check linkage after removing testcase data */ |
9697a559 | 2471 | of_unittest_check_tree_linkage(); |
f2051d6a | 2472 | |
81d0848f FR |
2473 | of_unittest_overlay_high_level(); |
2474 | ||
9697a559 WL |
2475 | pr_info("end of unittest - %i passed, %i failed\n", |
2476 | unittest_results.passed, unittest_results.failed); | |
f2051d6a | 2477 | |
53a42093 GL |
2478 | return 0; |
2479 | } | |
9697a559 | 2480 | late_initcall(of_unittest); |