test: regmap: add regmap_read_poll_timeout test

Add test to regmap_read_poll_timeout() helper to check the timeout works
properly but cannot test proper condition matching since read/write calls
are not executed in sandbox.

Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

diff --git a/test/dm/regmap.c b/test/dm/regmap.c
index a8d7e68..9a70c15 100644 (file)
--- a/test/dm/regmap.c
+++ b/test/dm/regmap.c
@@ -144,3 +144,29 @@ static int dm_test_regmap_getset(struct unit_test_state *uts)
 }
 
 DM_TEST(dm_test_regmap_getset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Read polling test */
+static int dm_test_regmap_poll(struct unit_test_state *uts)
+{
+       struct udevice *dev;
+       struct regmap *map;
+       uint reg;
+       unsigned long start;
+
+       ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
+       map = syscon_get_regmap(dev);
+       ut_assertok_ptr(map);
+
+       start = get_timer(0);
+
+       ut_asserteq(-ETIMEDOUT,
+                   regmap_read_poll_timeout(map, 0, reg,
+                                            (reg == 0xcacafafa),
+                                            1, 5 * CONFIG_SYS_HZ));
+
+       ut_assert(get_timer(start) > (5 * CONFIG_SYS_HZ));
+
+       return 0;
+}
+
+DM_TEST(dm_test_regmap_poll, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);