[PATCH fbtest 13/17] tests: Clear frame buffer before each test

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

Make sure the frame buffer is cleared before each test, to avoid
leftover artifacts from a previous test.

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
 include/fb.h | 1 +
 tests.c      | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/fb.h b/include/fb.h
index 1df4e48311b6c1e9..6506ec120aa962ae 100644
--- a/include/fb.h
+++ b/include/fb.h
@@ -28,6 +28,7 @@ extern int fb_set_cmap(void);
 extern int fb_pan(u32 xoffset, u32 yoffset);
 extern void fb_map(void);
 extern void fb_unmap(void);
+extern void fb_clear(void);
 
 
     /*
diff --git a/tests.c b/tests.c
index b1573032372e8090..22a8a0f489c2bc06 100644
--- a/tests.c
+++ b/tests.c
@@ -78,6 +78,8 @@ static void run_one_test(const struct test *test)
 	}
     }
 
+    fb_clear();
+
     res = test->func();
     switch (res) {
 	case TEST_OK:
-- 
2.34.1