TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: export a CPT mode set verification function

Browse Source 
At the point where we check, we can't do much about the failure, but it
can aid debugging.  Note that the auto-train override bit will be reset
as part of normal mode setting with this patch if a pipe ever does get
stuck, but that's consistent with the workaround for CPT provided by the
hardware team.  This patch helped catch the fact that the pipe wasn't
running in the !composite sync FDI case on my IVB SDV, so has already
shown to be useful.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Jesse Barnes
2011-10-11 10:43:02 -07:00
committed by Keith Packard
parent d64311ab4b
commit d4270e57ef
3 changed files with 32 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/intel_dp.c
+5
View File
@@ -1191,6 +1191,8 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
static void intel_dp_commit(struct drm_encoder *encoder)
{
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
struct drm_device *dev = encoder->dev;
struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc);
ironlake_edp_panel_vdd_on(intel_dp);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
@@ -1202,6 +1204,9 @@ static void intel_dp_commit(struct drm_encoder *encoder)
ironlake_edp_backlight_on(intel_dp);
intel_dp->dpms_mode = DRM_MODE_DPMS_ON;
if (HAS_PCH_CPT(dev))
intel_cpt_verify_modeset(dev, intel_crtc->pipe);
}
static void