diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c
index 7cd2d04..1d2af94 100644
--- a/test/dm/test-fdt.c
+++ b/test/dm/test-fdt.c
@@ -12,6 +12,7 @@
 #include <asm/global_data.h>
 #include <asm/io.h>
 #include <dm/test.h>
+#include <dm/read.h>
 #include <dm/root.h>
 #include <dm/device-internal.h>
 #include <dm/devres.h>
@@ -1157,6 +1158,41 @@
 }
 DM_TEST(dm_test_decode_display_timing, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 
+/* Test dev_decode_panel_timing() */
+static int dm_test_decode_panel_timing(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+	struct display_timing timing;
+
+	ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
+	ut_asserteq_str("a-test", dev->name);
+
+	ut_assertok(dev_decode_panel_timing(dev, &timing));
+	ut_assert(timing.hactive.typ == 240);
+	ut_assert(timing.hback_porch.typ == 7);
+	ut_assert(timing.hfront_porch.typ == 6);
+	ut_assert(timing.hsync_len.typ == 1);
+	ut_assert(timing.vactive.typ == 320);
+	ut_assert(timing.vback_porch.typ == 5);
+	ut_assert(timing.vfront_porch.typ == 8);
+	ut_assert(timing.vsync_len.typ == 2);
+	ut_assert(timing.pixelclock.typ == 6500000);
+	ut_assert(timing.flags & DISPLAY_FLAGS_HSYNC_HIGH);
+	ut_assert(!(timing.flags & DISPLAY_FLAGS_HSYNC_LOW));
+	ut_assert(!(timing.flags & DISPLAY_FLAGS_VSYNC_HIGH));
+	ut_assert(timing.flags & DISPLAY_FLAGS_VSYNC_LOW);
+	ut_assert(timing.flags & DISPLAY_FLAGS_DE_HIGH);
+	ut_assert(!(timing.flags & DISPLAY_FLAGS_DE_LOW));
+	ut_assert(timing.flags & DISPLAY_FLAGS_PIXDATA_POSEDGE);
+	ut_assert(!(timing.flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE));
+	ut_assert(timing.flags & DISPLAY_FLAGS_INTERLACED);
+	ut_assert(timing.flags & DISPLAY_FLAGS_DOUBLESCAN);
+	ut_assert(timing.flags & DISPLAY_FLAGS_DOUBLECLK);
+
+	return 0;
+}
+DM_TEST(dm_test_decode_panel_timing, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
 /* Test read_resourcee() */
 static int dm_test_read_resource(struct unit_test_state *uts)
 {