drm/i915/dp: don't mention eDP bpp clamping if it doesn't affect bpp

This is useful with the follow-up patch that frobs
dev_priv->vbt.edp_bpp, and the value no longer comes directly from
VBT.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 7ee9210e6133..cea8624a0c1a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -822,10 +822,11 @@ intel_dp_compute_config(struct intel_encoder *encoder,
         /* Walk through all bpp values. Luckily they're all nicely spaced with 2
          * bpc in between. */
         bpp = pipe_config->pipe_bpp;
-        if (is_edp(intel_dp) && dev_priv->vbt.edp_bpp) {
+        if (is_edp(intel_dp) && dev_priv->vbt.edp_bpp &&
+            dev_priv->vbt.edp_bpp < bpp) {
                 DRM_DEBUG_KMS("clamping bpp for eDP panel to BIOS-provided %i\n",
                               dev_priv->vbt.edp_bpp);
-                bpp = min_t(int, bpp, dev_priv->vbt.edp_bpp);
+                bpp = dev_priv->vbt.edp_bpp;
         }
 
         for (; bpp >= 6*3; bpp -= 2*3) {