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authorGrant Likely <grant.likely@linaro.org>2014-03-14 13:53:10 +0000
committerGrant Likely <grant.likely@linaro.org>2014-05-23 11:35:30 +0900
commitae91ff72e9132abe47f726424d9420fce004ca04 (patch)
tree930bda8116afaf11520fe7a9b18a25fc84ce5843 /drivers/of
parentc22e650e66b862babe9c00bebb20b8029c7b0362 (diff)
of: Add a testcase for of_find_node_by_path()
Add a testcase for the find_node_by_path() function to make sure it handles all the valid scenarios. Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/selftest.c46
-rw-r--r--drivers/of/testcase-data/tests-phandle.dtsi6
2 files changed, 51 insertions, 1 deletions
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index 2588faaaa305..077314eebb95 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -31,6 +31,51 @@ static struct selftest_results {
} \
}
+static void __init of_selftest_find_node_by_name(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_path("/testcase-data");
+ selftest(np && !strcmp("/testcase-data", np->full_name),
+ "find /testcase-data failed\n");
+ of_node_put(np);
+
+ /* Test if trailing '/' works */
+ np = of_find_node_by_path("/testcase-data/");
+ selftest(!np, "trailing '/' on /testcase-data/ should fail\n");
+
+ np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
+ selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+ "find /testcase-data/phandle-tests/consumer-a failed\n");
+ of_node_put(np);
+
+ np = of_find_node_by_path("testcase-alias");
+ selftest(np && !strcmp("/testcase-data", np->full_name),
+ "find testcase-alias failed\n");
+ of_node_put(np);
+
+ /* Test if trailing '/' works on aliases */
+ np = of_find_node_by_path("testcase-alias/");
+ selftest(!np, "trailing '/' on testcase-alias/ should fail\n");
+
+ np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
+ selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+ "find testcase-alias/phandle-tests/consumer-a failed\n");
+ of_node_put(np);
+
+ np = of_find_node_by_path("/testcase-data/missing-path");
+ selftest(!np, "non-existent path returned node %s\n", np->full_name);
+ of_node_put(np);
+
+ np = of_find_node_by_path("missing-alias");
+ selftest(!np, "non-existent alias returned node %s\n", np->full_name);
+ of_node_put(np);
+
+ np = of_find_node_by_path("testcase-alias/missing-path");
+ selftest(!np, "non-existent alias with relative path returned node %s\n", np->full_name);
+ of_node_put(np);
+}
+
static void __init of_selftest_dynamic(void)
{
struct device_node *np;
@@ -484,6 +529,7 @@ static int __init of_selftest(void)
of_node_put(np);
pr_info("start of selftest - you will see error messages\n");
+ of_selftest_find_node_by_name();
of_selftest_dynamic();
of_selftest_parse_phandle_with_args();
of_selftest_property_match_string();
diff --git a/drivers/of/testcase-data/tests-phandle.dtsi b/drivers/of/testcase-data/tests-phandle.dtsi
index 788a4c24b8f5..ce0fe083d406 100644
--- a/drivers/of/testcase-data/tests-phandle.dtsi
+++ b/drivers/of/testcase-data/tests-phandle.dtsi
@@ -1,6 +1,10 @@
/ {
- testcase-data {
+ aliases {
+ testcase-alias = &testcase;
+ };
+
+ testcase: testcase-data {
security-password = "password";
duplicate-name = "duplicate";
duplicate-name { };