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-rw-r--r--drivers/of/selftest.c161
1 files changed, 155 insertions, 6 deletions
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index 0eb5c38b4e07..e21012bde639 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -9,18 +9,24 @@
9#include <linux/errno.h> 9#include <linux/errno.h>
10#include <linux/module.h> 10#include <linux/module.h>
11#include <linux/of.h> 11#include <linux/of.h>
12#include <linux/of_irq.h>
12#include <linux/list.h> 13#include <linux/list.h>
13#include <linux/mutex.h> 14#include <linux/mutex.h>
14#include <linux/slab.h> 15#include <linux/slab.h>
15#include <linux/device.h> 16#include <linux/device.h>
16 17
17static bool selftest_passed = true; 18static struct selftest_results {
19 int passed;
20 int failed;
21} selftest_results;
22
18#define selftest(result, fmt, ...) { \ 23#define selftest(result, fmt, ...) { \
19 if (!(result)) { \ 24 if (!(result)) { \
20 pr_err("FAIL %s:%i " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \ 25 selftest_results.failed++; \
21 selftest_passed = false; \ 26 pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \
22 } else { \ 27 } else { \
23 pr_info("pass %s:%i\n", __FILE__, __LINE__); \ 28 selftest_results.passed++; \
29 pr_debug("pass %s():%i\n", __func__, __LINE__); \
24 } \ 30 } \
25} 31}
26 32
@@ -131,7 +137,6 @@ static void __init of_selftest_property_match_string(void)
131 struct device_node *np; 137 struct device_node *np;
132 int rc; 138 int rc;
133 139
134 pr_info("start\n");
135 np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); 140 np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
136 if (!np) { 141 if (!np) {
137 pr_err("No testcase data in device tree\n"); 142 pr_err("No testcase data in device tree\n");
@@ -154,6 +159,147 @@ static void __init of_selftest_property_match_string(void)
154 selftest(rc == -EILSEQ, "unterminated string; rc=%i", rc); 159 selftest(rc == -EILSEQ, "unterminated string; rc=%i", rc);
155} 160}
156 161
162static void __init of_selftest_parse_interrupts(void)
163{
164 struct device_node *np;
165 struct of_phandle_args args;
166 int i, rc;
167
168 np = of_find_node_by_path("/testcase-data/interrupts/interrupts0");
169 if (!np) {
170 pr_err("missing testcase data\n");
171 return;
172 }
173
174 for (i = 0; i < 4; i++) {
175 bool passed = true;
176 args.args_count = 0;
177 rc = of_irq_parse_one(np, i, &args);
178
179 passed &= !rc;
180 passed &= (args.args_count == 1);
181 passed &= (args.args[0] == (i + 1));
182
183 selftest(passed, "index %i - data error on node %s rc=%i\n",
184 i, args.np->full_name, rc);
185 }
186 of_node_put(np);
187
188 np = of_find_node_by_path("/testcase-data/interrupts/interrupts1");
189 if (!np) {
190 pr_err("missing testcase data\n");
191 return;
192 }
193
194 for (i = 0; i < 4; i++) {
195 bool passed = true;
196 args.args_count = 0;
197 rc = of_irq_parse_one(np, i, &args);
198
199 /* Test the values from tests-phandle.dtsi */
200 switch (i) {
201 case 0:
202 passed &= !rc;
203 passed &= (args.args_count == 1);
204 passed &= (args.args[0] == 9);
205 break;
206 case 1:
207 passed &= !rc;
208 passed &= (args.args_count == 3);
209 passed &= (args.args[0] == 10);
210 passed &= (args.args[1] == 11);
211 passed &= (args.args[2] == 12);
212 break;
213 case 2:
214 passed &= !rc;
215 passed &= (args.args_count == 2);
216 passed &= (args.args[0] == 13);
217 passed &= (args.args[1] == 14);
218 break;
219 case 3:
220 passed &= !rc;
221 passed &= (args.args_count == 2);
222 passed &= (args.args[0] == 15);
223 passed &= (args.args[1] == 16);
224 break;
225 default:
226 passed = false;
227 }
228 selftest(passed, "index %i - data error on node %s rc=%i\n",
229 i, args.np->full_name, rc);
230 }
231 of_node_put(np);
232}
233
234static void __init of_selftest_parse_interrupts_extended(void)
235{
236 struct device_node *np;
237 struct of_phandle_args args;
238 int i, rc;
239
240 np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0");
241 if (!np) {
242 pr_err("missing testcase data\n");
243 return;
244 }
245
246 for (i = 0; i < 7; i++) {
247 bool passed = true;
248 rc = of_irq_parse_one(np, i, &args);
249
250 /* Test the values from tests-phandle.dtsi */
251 switch (i) {
252 case 0:
253 passed &= !rc;
254 passed &= (args.args_count == 1);
255 passed &= (args.args[0] == 1);
256 break;
257 case 1:
258 passed &= !rc;
259 passed &= (args.args_count == 3);
260 passed &= (args.args[0] == 2);
261 passed &= (args.args[1] == 3);
262 passed &= (args.args[2] == 4);
263 break;
264 case 2:
265 passed &= !rc;
266 passed &= (args.args_count == 2);
267 passed &= (args.args[0] == 5);
268 passed &= (args.args[1] == 6);
269 break;
270 case 3:
271 passed &= !rc;
272 passed &= (args.args_count == 1);
273 passed &= (args.args[0] == 9);
274 break;
275 case 4:
276 passed &= !rc;
277 passed &= (args.args_count == 3);
278 passed &= (args.args[0] == 10);
279 passed &= (args.args[1] == 11);
280 passed &= (args.args[2] == 12);
281 break;
282 case 5:
283 passed &= !rc;
284 passed &= (args.args_count == 2);
285 passed &= (args.args[0] == 13);
286 passed &= (args.args[1] == 14);
287 break;
288 case 6:
289 passed &= !rc;
290 passed &= (args.args_count == 1);
291 passed &= (args.args[0] == 15);
292 break;
293 default:
294 passed = false;
295 }
296
297 selftest(passed, "index %i - data error on node %s rc=%i\n",
298 i, args.np->full_name, rc);
299 }
300 of_node_put(np);
301}
302
157static int __init of_selftest(void) 303static int __init of_selftest(void)
158{ 304{
159 struct device_node *np; 305 struct device_node *np;
@@ -168,7 +314,10 @@ static int __init of_selftest(void)
168 pr_info("start of selftest - you will see error messages\n"); 314 pr_info("start of selftest - you will see error messages\n");
169 of_selftest_parse_phandle_with_args(); 315 of_selftest_parse_phandle_with_args();
170 of_selftest_property_match_string(); 316 of_selftest_property_match_string();
171 pr_info("end of selftest - %s\n", selftest_passed ? "PASS" : "FAIL"); 317 of_selftest_parse_interrupts();
318 of_selftest_parse_interrupts_extended();
319 pr_info("end of selftest - %i passed, %i failed\n",
320 selftest_results.passed, selftest_results.failed);
172 return 0; 321 return 0;
173} 322}
174late_initcall(of_selftest); 323late_initcall(of_selftest);