drm/radeon/kms: add pll debugging output

commit 51d4bf840a27fe02c883ddc6d9708af056773769 upstream.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index c2848e03404020c2181f11b5dec4c3d5a5b09a50..40e11e442f223643e1e18eb0f159eb53b5f68275 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -618,6 +618,10 @@ static void radeon_compute_pll_legacy(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 bool