dm: core: Export uclass_find_device_by_phandle()
This function may be useful to code outside of the code driver-model
implementation. Export it and add a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c
index e43acb2..b70e3fa 100644
--- a/test/dm/test-fdt.c
+++ b/test/dm/test-fdt.c
@@ -611,3 +611,23 @@
}
DM_TEST(dm_test_fdt_disable_enable_by_path, DM_TESTF_SCAN_PDATA |
DM_TESTF_SCAN_FDT);
+
+/* Test a few uclass phandle functions */
+static int dm_test_fdt_phandle(struct unit_test_state *uts)
+{
+ struct udevice *back, *dev, *dev2;
+
+ ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
+ ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
+ back, "missing", &dev));
+ ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
+ "power-supply", &dev));
+ ut_asserteq(0, device_active(dev));
+ ut_asserteq_str("ldo1", dev->name);
+ ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
+ "power-supply", &dev2));
+ ut_asserteq_ptr(dev, dev2);
+
+ return 0;
+}
+DM_TEST(dm_test_fdt_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);