diff options
| author | Jonas Karlman <[email protected]> | 2026-07-09 23:02:40 +0000 |
|---|---|---|
| committer | Peng Fan <[email protected]> | 2026-07-12 16:18:32 +0800 |
| commit | 10acd5bc9a6c453b86486156e76f1fbbe116e285 (patch) | |
| tree | 545fbe5352d3551f541b943dad02d240b4b753fe /test | |
| parent | 0663b4f553789f8d38220a543116563885693120 (diff) | |
test: dm: regulator: Add regulator_set_value_clamp() tests
Add a sandbox LDO3 with a configurable 1.8V to 3.3V range and use it
to test regulator_set_value_clamp().
Test in-range requests, clamping against the regulator limits, invalid
ranges outside the regulator limits and a min value higher than max.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Diffstat (limited to 'test')
| -rw-r--r-- | test/dm/regulator.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/dm/regulator.c b/test/dm/regulator.c index 449748ad52f..51007d4079d 100644 --- a/test/dm/regulator.c +++ b/test/dm/regulator.c @@ -28,6 +28,7 @@ enum { BUCK3, LDO1, LDO2, + LDO3, OUTPUT_COUNT, }; @@ -44,6 +45,7 @@ static const char *regulator_names[OUTPUT_COUNT][OUTPUT_NAME_COUNT] = { { SANDBOX_BUCK3_DEVNAME, SANDBOX_BUCK3_PLATNAME }, { SANDBOX_LDO1_DEVNAME, SANDBOX_LDO1_PLATNAME}, { SANDBOX_LDO2_DEVNAME, SANDBOX_LDO2_PLATNAME}, + { SANDBOX_LDO3_DEVNAME, SANDBOX_LDO3_PLATNAME}, }; /* Test regulator get method */ @@ -118,6 +120,42 @@ static int dm_test_power_regulator_set_get_voltage(struct unit_test_state *uts) } DM_TEST(dm_test_power_regulator_set_get_voltage, UTF_SCAN_FDT); +/* Test regulator set Voltage clamp method */ +static int dm_test_power_regulator_set_value_clamp(struct unit_test_state *uts) +{ + struct udevice *dev; + const char *platname; + + /* LDO3 have 'min' 1.8V and 'max' 3.3V */ + platname = regulator_names[LDO3][PLATNAME]; + ut_assertok(regulator_get_by_platname(platname, &dev)); + + /* 'target' in 'min'/'max' range - should not clamp voltage */ + ut_assertok(regulator_set_value_clamp(dev, 1700000, 1800000, 1950000)); + ut_asserteq(1800000, regulator_get_value(dev)); + ut_assertok(regulator_set_value_clamp(dev, 2700000, 3300000, 3600000)); + ut_asserteq(3300000, regulator_get_value(dev)); + + /* 'target' out of 'min'/'max' range - should clamp voltage */ + ut_assertok(regulator_set_value_clamp(dev, 1700000, 1700000, 1950000)); + ut_asserteq(1800000, regulator_get_value(dev)); + ut_assertok(regulator_set_value_clamp(dev, 2700000, 3400000, 3600000)); + ut_asserteq(3300000, regulator_get_value(dev)); + + /* 'min'/'max' out of range - should return -EINVAL */ + ut_asserteq(-EINVAL, + regulator_set_value_clamp(dev, 1200000, 1500000, 1700000)); + ut_asserteq(-EINVAL, + regulator_set_value_clamp(dev, 3500000, 4000000, 5000000)); + + /* 'min' higher than 'max' - should return -EINVAL */ + ut_asserteq(-EINVAL, + regulator_set_value_clamp(dev, 3100000, 3000000, 2900000)); + + return 0; +} +DM_TEST(dm_test_power_regulator_set_value_clamp, UTF_SCAN_FDT); + /* Test regulator set and get Current method */ static int dm_test_power_regulator_set_get_current(struct unit_test_state *uts) { |