This has been lost in my recent bpp handling rework in
commit 4e53c2e010e531b4a014692199e978482d471c7e
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date: Wed Mar 27 00:44:58 2013 +0100
drm/i915: precompute pipe bpp before touching the hw
Cc: Paulo Zanoni <przanoni at gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/i915/intel_dp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index c5cfec3..58ba0a0 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -741,8 +741,11 @@ 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 = min_t(int, 8*3, pipe_config->pipe_bpp);
- if (is_edp(intel_dp) && dev_priv->edp.bpp)
+ if (is_edp(intel_dp) && dev_priv->edp.bpp) {
+ DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n",
+ bpp, dev_priv->edp.bpp);
bpp = min_t(int, bpp, dev_priv->edp.bpp);
+ }
for (; bpp >= 6*3; bpp -= 2*3) {
mode_rate = intel_dp_link_required(target_clock, bpp);
--
1.7.10.4
