From 7aff0fe33033fc75b61446ba29d38b1b1354af9f Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 12 Dec 2011 09:25:58 -0700 Subject: 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 --- drivers/of/selftest.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'drivers/of/selftest.c') diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c index 9d2b480..f24ffd7 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; } -- cgit v1.1