+
+static int dm_test_clrset_flags(struct unit_test_state *uts)
+{
+ struct gpio_desc desc;
+ struct udevice *dev;
+ ulong flags;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
+ ut_asserteq_str("a-test", dev->name);
+ ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_OUT));
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_OUT, flags);
+ ut_asserteq(GPIOD_IS_OUT, desc.flags);
+ ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE));
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, flags);
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, desc.flags);
+ ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
+ ut_asserteq(1, dm_gpio_get_value(&desc));
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_IN));
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_IN, flags & GPIOD_MASK_DIR);
+ ut_asserteq(GPIOD_IS_IN, desc.flags & GPIOD_MASK_DIR);
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_PULL,
+ GPIOD_PULL_UP));
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags);
+ ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, desc.flags);
+
+ /* Check we cannot set both PULL_UP and PULL_DOWN */
+ ut_asserteq(-EINVAL, dm_gpio_clrset_flags(&desc, 0, GPIOD_PULL_DOWN));
+
+ return 0;
+}
+DM_TEST(dm_test_clrset_flags, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Check that an active-low GPIO works as expected */
+static int dm_test_clrset_flags_invert(struct unit_test_state *uts)
+{
+ struct gpio_desc desc;
+ struct udevice *dev;
+ ulong flags;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
+ ut_asserteq_str("a-test", dev->name);
+ ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc,
+ GPIOD_IS_OUT | GPIOD_ACTIVE_LOW));
+
+ /*
+ * From this size we see it as 0 (active low), but the sandbox driver
+ * sees the pin value high
+ */
+ ut_asserteq(0, dm_gpio_get_value(&desc));
+ ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
+
+ ut_assertok(dm_gpio_set_value(&desc, 1));
+ ut_asserteq(1, dm_gpio_get_value(&desc));
+ ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
+
+ /* Do the same with dm_gpio_clrset_flags() */
+ ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0));
+ ut_asserteq(0, dm_gpio_get_value(&desc));
+ ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE));
+ ut_asserteq(1, dm_gpio_get_value(&desc));
+ ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
+
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE,
+ flags);
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE,
+ desc.flags);
+
+ ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0));
+ ut_assertok(dm_gpio_get_flags(&desc, &flags));
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, flags);
+ ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, desc.flags);
+
+ return 0;
+}
+DM_TEST(dm_test_clrset_flags_invert, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);