From: Vandana Kannan Date: Thu, 13 Nov 2014 14:55:22 +0000 (+0000) Subject: drm/i915/skl: Apply eDP WA only for gen < 9 X-Git-Tag: v4.14-rc1~6290^2~14^2~72 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=23f08d8340e13c02fc2e5f64febc9fbd54e58770;p=platform%2Fkernel%2Flinux-rpi.git 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 Reviewed-by: Paulo Zanoni Reviewed-by: Satheeshakrishna M Signed-off-by: Vandana Kannan Cc: Satheeshakrishna M Signed-off-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index df4b608..17bf911 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);