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-rw-r--r--drivers/of/unittest-data/tests-platform.dtsi13
-rw-r--r--drivers/of/unittest.c14
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/of/unittest-data/tests-platform.dtsi b/drivers/of/unittest-data/tests-platform.dtsi
index fa39611071b3..cd310b26b50c 100644
--- a/drivers/of/unittest-data/tests-platform.dtsi
+++ b/drivers/of/unittest-data/tests-platform.dtsi
@@ -34,5 +34,18 @@
};
};
};
+
+ platform-tests-2 {
+ // No #address-cells or #size-cells
+ node {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ test-device@100 {
+ compatible = "test-sub-device";
+ reg = <0x100 1>;
+ };
+ };
+ };
};
};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 80483e38d7b4..34c957add8b9 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -1380,6 +1380,7 @@ static void __init of_unittest_bus_3cell_ranges(void)
static void __init of_unittest_reg(void)
{
struct device_node *np;
+ struct resource res;
int ret;
u64 addr, size;
@@ -1396,6 +1397,19 @@ static void __init of_unittest_reg(void)
np, addr);
of_node_put(np);
+
+ np = of_find_node_by_path("/testcase-data/platform-tests-2/node/test-device@100");
+ if (!np) {
+ pr_err("missing testcase data\n");
+ return;
+ }
+
+ ret = of_address_to_resource(np, 0, &res);
+ unittest(ret == -EINVAL, "of_address_to_resource(%pOF) expected error on untranslatable address\n",
+ np);
+
+ of_node_put(np);
+
}
struct of_unittest_expected_res {