drm: Add "prefix" parameter to drm_rect_debug_print()

Allow the caller to specify a "prefix" string to drm_rect_debug_print()
to make it easier to see which drm_rect is being printed.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c
index 531ac4cc9756..a8e2c8603945 100644
--- a/drivers/gpu/drm/drm_rect.c
+++ b/drivers/gpu/drm/drm_rect.c
@@ -275,22 +275,23 @@ EXPORT_SYMBOL(drm_rect_calc_vscale_relaxed);
 
 /**
  * drm_rect_debug_print - print the rectangle information
+ * @prefix: prefix string
  * @r: rectangle to print
  * @fixed_point: rectangle is in 16.16 fixed point format
  */
-void drm_rect_debug_print(const struct drm_rect *r, bool fixed_point)
+void drm_rect_debug_print(const char *prefix, const struct drm_rect *r, bool fixed_point)
 {
         int w = drm_rect_width(r);
         int h = drm_rect_height(r);
 
         if (fixed_point)
-                DRM_DEBUG_KMS("%d.%06ux%d.%06u%+d.%06u%+d.%06u\n",
+                DRM_DEBUG_KMS("%s%d.%06ux%d.%06u%+d.%06u%+d.%06u\n", prefix,
                               w >> 16, ((w & 0xffff) * 15625) >> 10,
                               h >> 16, ((h & 0xffff) * 15625) >> 10,
                               r->x1 >> 16, ((r->x1 & 0xffff) * 15625) >> 10,
                               r->y1 >> 16, ((r->y1 & 0xffff) * 15625) >> 10);
         else
-                DRM_DEBUG_KMS("%dx%d%+d%+d\n", w, h, r->x1, r->y1);
+                DRM_DEBUG_KMS("%s%dx%d%+d%+d\n", prefix, w, h, r->x1, r->y1);
 }
 EXPORT_SYMBOL(drm_rect_debug_print);