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of: unittest: Add phandle remapping test 

Test the functionality of of_parse_phandle_with_args_map().

Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Stephen Boyd 2018-01-30 18:36:17 -08:00 committed by Rob Herring
parent bd6f2fd5a1
commit 357aa4b61c
2 changed files with 145 additions and 0 deletions
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25
drivers/of/unittest-data/tests-phandle.dtsi
View File

@ -26,6 +26,18 @@
#phandle-cells = <3>;
};
provider4: provider4 {
#phandle-cells = <2>;
phandle-map = <0 1 &provider1 3>,
<4 0 &provider0>,
<16 5 &provider3 3 5 0>,
<200 8 &provider2 23 6>,
<19 0 &provider2 15 0>,
<2 3 &provider3 2 5 3>;
phandle-map-mask = <0xff 0xf>;
phandle-map-pass-thru = <0x0 0xf0>;
};
consumer-a {
phandle-list = <&provider1 1>,
<&provider2 2 0>,
@ -44,6 +56,19 @@
unterminated-string = [40 41 42 43];
unterminated-string-list = "first", "second", [40 41 42 43];
};
consumer-b {
phandle-list = <&provider1 1>,
<&provider4 2 3>,
<0>,
<&provider4 4 0x100>,
<&provider4 0 0x61>,
<&provider0>,
<&provider4 19 0x20>;
phandle-list-bad-phandle = <12345678 0 0>;
phandle-list-bad-args = <&provider2 1 0>,
<&provider4 0>;
};
};
};
};

120
drivers/of/unittest.c
View File

@ -453,6 +453,125 @@ static void __init of_unittest_parse_phandle_with_args(void)
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
}
static void __init of_unittest_parse_phandle_with_args_map(void)
{
struct device_node *np, *p0, *p1, *p2, *p3;
struct of_phandle_args args;
int i, rc;
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-b");
if (!np) {
pr_err("missing testcase data\n");
return;
}
p0 = of_find_node_by_path("/testcase-data/phandle-tests/provider0");
if (!p0) {
pr_err("missing testcase data\n");
return;
}
p1 = of_find_node_by_path("/testcase-data/phandle-tests/provider1");
if (!p1) {
pr_err("missing testcase data\n");
return;
}
p2 = of_find_node_by_path("/testcase-data/phandle-tests/provider2");
if (!p2) {
pr_err("missing testcase data\n");
return;
}
p3 = of_find_node_by_path("/testcase-data/phandle-tests/provider3");
if (!p3) {
pr_err("missing testcase data\n");
return;
}
rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells");
unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc);
for (i = 0; i < 8; i++) {
bool passed = true;
rc = of_parse_phandle_with_args_map(np, "phandle-list",
"phandle", i, &args);
/* Test the values from tests-phandle.dtsi */
switch (i) {
case 0:
passed &= !rc;
passed &= (args.np == p1);
passed &= (args.args_count == 1);
passed &= (args.args[0] == 1);
break;
case 1:
passed &= !rc;
passed &= (args.np == p3);
passed &= (args.args_count == 3);
passed &= (args.args[0] == 2);
passed &= (args.args[1] == 5);
passed &= (args.args[2] == 3);
break;
case 2:
passed &= (rc == -ENOENT);
break;
case 3:
passed &= !rc;
passed &= (args.np == p0);
passed &= (args.args_count == 0);
break;
case 4:
passed &= !rc;
passed &= (args.np == p1);
passed &= (args.args_count == 1);
passed &= (args.args[0] == 3);
break;
case 5:
passed &= !rc;
passed &= (args.np == p0);
passed &= (args.args_count == 0);
break;
case 6:
passed &= !rc;
passed &= (args.np == p2);
passed &= (args.args_count == 2);
passed &= (args.args[0] == 15);
passed &= (args.args[1] == 0x20);
break;
case 7:
passed &= (rc == -ENOENT);
break;
default:
passed = false;
}
unittest(passed, "index %i - data error on node %s rc=%i\n",
i, args.np->full_name, rc);
}
/* Check for missing list property */
rc = of_parse_phandle_with_args_map(np, "phandle-list-missing",
"phandle", 0, &args);
unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
/* Check for missing cells,map,mask property */
rc = of_parse_phandle_with_args_map(np, "phandle-list",
"phandle-missing", 0, &args);
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for bad phandle in list */
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-phandle",
"phandle", 0, &args);
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
/* Check for incorrectly formed argument list */
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-args",
"phandle", 1, &args);
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
}
static void __init of_unittest_property_string(void)
{
const char *strings[4];
@ -2359,6 +2478,7 @@ static int __init of_unittest(void)
of_unittest_find_node_by_name();
of_unittest_dynamic();
of_unittest_parse_phandle_with_args();
of_unittest_parse_phandle_with_args_map();
of_unittest_printf();
of_unittest_property_string();
of_unittest_property_copy();