3.11.10.7 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrj...@linux.intel.com>
commit 6375b768a9850b6154478993e5fb566fa4614a9c upstream.
Single-link DVI max dotclock is 165MHz. Filter out modes with higher
dotclock when the monitor doesn't support HDMI.
Modes higher than 165 MHz were allowed in
commit 7d148ef51a657fd04036c3ed7803da600dd0d451
Author: Daniel Vetter <daniel.vet...@ffwll.ch>
Date: Mon Jul 22 18:02:39 2013 +0200
drm/i915: fix hdmi portclock limits
Also don't attempt to use 12bpc mode with DVI monitors.
Cc: Adam Nielsen <a.niel...@shikadi.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75345
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70331
Tested-by: Ralf Jung <post+ker...@ralfj.de>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
drivers/gpu/drm/i915/intel_hdmi.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
b/drivers/gpu/drm/i915/intel_hdmi.c
index 2fd3fd5..5745277 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -789,7 +789,7 @@ static int hdmi_portclock_limit(struct intel_hdmi *hdmi)
{
struct drm_device *dev = intel_hdmi_to_dev(hdmi);
- if (IS_G4X(dev))
+ if (!hdmi->has_hdmi_sink || IS_G4X(dev))
return 165000;
else if (IS_HASWELL(dev))
return 300000;
@@ -842,8 +842,8 @@ bool intel_hdmi_compute_config(struct intel_encoder
*encoder,
* outputs. We also need to check that the higher clock still fits
* within limits.
*/
- if (pipe_config->pipe_bpp > 8*3 && clock_12bpc <= portclock_limit
- && HAS_PCH_SPLIT(dev)) {
+ if (pipe_config->pipe_bpp > 8*3 && intel_hdmi->has_hdmi_sink &&
+ clock_12bpc <= portclock_limit && HAS_PCH_SPLIT(dev)) {
DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n");
desired_bpp = 12*3;
--
1.9.1
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