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| author | Grant Likely <grant.likely@secretlab.ca> | 2011-12-12 17:25:58 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-01-28 18:29:20 +0100 |
| commit | 7aff0fe33033fc75b61446ba29d38b1b1354af9f (patch) | |
| tree | 2ddcfaf17ab0d98959478fd5133d1fe08adb8eef /drivers/of/selftest.c | |
| parent | Linux 3.3-rc1 (diff) | |
| download | linux-7aff0fe33033fc75b61446ba29d38b1b1354af9f.tar.xz linux-7aff0fe33033fc75b61446ba29d38b1b1354af9f.zip | |
of: Add of_property_match_string() to find index into a string list
Add a helper function for finding the index of a string in a string
list property. This helper is useful for bindings that use a separate
*-name property for attaching names to tuples in another property such
as 'reg' or 'gpios'.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of/selftest.c')
| -rw-r--r-- | drivers/of/selftest.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c index 9d2b4803a9d6..f24ffd7088d2 100644 --- a/drivers/of/selftest.c +++ b/drivers/of/selftest.c @@ -120,6 +120,34 @@ static void __init of_selftest_parse_phandle_with_args(void) pr_info("end - %s\n", passed_all ? "PASS" : "FAIL"); } +static void __init of_selftest_property_match_string(void) +{ + struct device_node *np; + int rc; + + pr_info("start\n"); + np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); + if (!np) { + pr_err("No testcase data in device tree\n"); + return; + } + + rc = of_property_match_string(np, "phandle-list-names", "first"); + selftest(rc == 0, "first expected:0 got:%i\n", rc); + rc = of_property_match_string(np, "phandle-list-names", "second"); + selftest(rc == 1, "second expected:0 got:%i\n", rc); + rc = of_property_match_string(np, "phandle-list-names", "third"); + selftest(rc == 2, "third expected:0 got:%i\n", rc); + rc = of_property_match_string(np, "phandle-list-names", "fourth"); + selftest(rc == -ENODATA, "unmatched string; rc=%i", rc); + rc = of_property_match_string(np, "missing-property", "blah"); + selftest(rc == -EINVAL, "missing property; rc=%i", rc); + rc = of_property_match_string(np, "empty-property", "blah"); + selftest(rc == -ENODATA, "empty property; rc=%i", rc); + rc = of_property_match_string(np, "unterminated-string", "blah"); + selftest(rc == -EILSEQ, "unterminated string; rc=%i", rc); +} + static int __init of_selftest(void) { struct device_node *np; @@ -133,6 +161,7 @@ static int __init of_selftest(void) pr_info("start of selftest - you will see error messages\n"); of_selftest_parse_phandle_with_args(); + of_selftest_property_match_string(); pr_info("end of selftest - %s\n", selftest_passed ? "PASS" : "FAIL"); return 0; } |