drm/radeon/kms: add pll debugging output

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 71788e942cb7..367365652e9a 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -965,6 +965,10 @@ void radeon_compute_pll(struct radeon_pll *pll,
         *frac_fb_div_p = best_frac_feedback_div;
         *ref_div_p = best_ref_div;
         *post_div_p = best_post_div;
+        DRM_DEBUG_KMS("%d %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
+                      freq, best_freq / 1000, best_feedback_div, best_frac_feedback_div,
+                      best_ref_div, best_post_div);
+
 }
 
 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)