lib/igt_kms: set_vt_graphics_mode is a low-level helper

So give it a kmstest_ prefix and shuffle it around a bit.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/igt_kms.c

@@ -287,12 +287,16 @@ static void restore_vt_mode_at_exit(int sig)
 		set_vt_mode(orig_vt_mode);
 }
 
-/*
- * Set the VT to graphics mode and install an exit handler to restore the
- * original mode.
+/**
+ * kmstest_set_vt_graphics_mode:
+ *
+ * Sets the controlling VT (if available) into graphics/raw mode and installs an
+ * igt exit handler to set the VT back to text mode on exit.
+ *
+ * All kms tests must call this function to make sure that the fbcon doesn't
+ * interfere by e.g. blanking the screen.
  */
-
-void igt_set_vt_graphics_mode(void)
+void kmstest_set_vt_graphics_mode(void)
 {
 	long ret;
 

lib/igt_kms.h

@@ -36,6 +36,8 @@
 
 #include "igt_fb.h"
 
+/* Low-level helpers with kmstest_ prefix */
+
 enum pipe {
         PIPE_A = 0,
         PIPE_B,
@@ -163,6 +165,10 @@ void kmstest_unset_all_crtcs(int drm_fd, drmModeResPtr resources);
  * A small modeset API
  */
 
+/* set vt into graphics mode, required to prevent fbcon from interfering */
+void kmstest_set_vt_graphics_mode(void);
+
+/* High-level kms api with igt_ prefix */
 enum igt_commit_style {
 	COMMIT_LEGACY = 0,
 	COMMIT_UNIVERSAL,
@@ -239,9 +245,6 @@ struct igt_display {
 	bool has_universal_planes;
 };
 
-/* set vt into graphics mode, required to prevent fbcon from interfering */
-void igt_set_vt_graphics_mode(void);
-
 void igt_display_init(igt_display_t *display, int drm_fd);
 void igt_display_fini(igt_display_t *display);
 int  igt_display_commit2(igt_display_t *display, enum igt_commit_style s);