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| author | Vandana Kannan <vandana.kannan@intel.com> | 2014-11-13 14:55:22 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-11-14 11:19:21 +0100 |
| commit | 23f08d8340e13c02fc2e5f64febc9fbd54e58770 (patch) | |
| tree | 2cd88cf37143bba97df24df4d3f95f53875cbc0a /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | 3f4cd19ff84232174fcf3ede12c612bdee420d4a (diff) | |
| download | lwn-23f08d8340e13c02fc2e5f64febc9fbd54e58770.tar.gz lwn-23f08d8340e13c02fc2e5f64febc9fbd54e58770.zip | |
drm/i915/skl: Apply eDP WA only for gen < 9
The eDP WA to stop link train based on port type is for HSW/BDW, not
required for SKL+.
Suggested by Satheesh
v2: Simplified the check befoe stop_link_train. Suggested by Satheesh.
v3: stop_link_train need not be called from intel_enable_ddi for gen >= 9
Suggested-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index df4b608894e9..17bf9116fab1 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1503,7 +1503,7 @@ static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder) intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); intel_dp_start_link_train(intel_dp); intel_dp_complete_link_train(intel_dp); - if (port != PORT_A) + if (port != PORT_A || INTEL_INFO(dev)->gen >= 9) intel_dp_stop_link_train(intel_dp); } else if (type == INTEL_OUTPUT_HDMI) { struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); @@ -1577,7 +1577,7 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder) } else if (type == INTEL_OUTPUT_EDP) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - if (port == PORT_A) + if (port == PORT_A && INTEL_INFO(dev)->gen < 9) intel_dp_stop_link_train(intel_dp); intel_edp_backlight_on(intel_dp); |