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-rw-r--r--test/dm/regmap.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/dm/regmap.c b/test/dm/regmap.c
index 5b51a90488..d4b86b3b03 100644
--- a/test/dm/regmap.c
+++ b/test/dm/regmap.c
@@ -91,3 +91,28 @@ static int dm_test_regmap_syscon(struct unit_test_state *uts)
}
DM_TEST(dm_test_regmap_syscon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Read/Write/Modify test */
+static int dm_test_regmap_rw(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ struct regmap *map;
+ uint reg;
+
+ ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
+ map = syscon_get_regmap(dev);
+ ut_assertok_ptr(map);
+
+ ut_assertok(regmap_write(map, 0, 0xcacafafa));
+ ut_assertok(regmap_write(map, 3, 0x55aa2211));
+
+ ut_assertok(regmap_read(map, 0, &reg));
+ ut_assertok(regmap_read(map, 3, &reg));
+
+ ut_assertok(regmap_update_bits(map, 0, 0xff00ff00, 0x55aa2211));
+ ut_assertok(regmap_update_bits(map, 3, 0x00ff00ff, 0xcacafada));
+
+ return 0;
+}
+
+DM_TEST(dm_test_regmap_rw, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);