From d521361755c241a2cfd15e6ce6ef7117e3858f4a Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Wed, 31 Oct 2018 09:28:44 -0700 Subject: [PATCH] drm/i915: Define WA 0870 and kill dead code. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Let's introduce the WA number that is the cause of having NV12 disabled on both SLK and BXT. According to Spec: WA 0870: "Display flickers with NV12 video playback in Y tiling mode. WA: Use YUV422 surface format instead of NV12." v2: remove the useless dead code and consequently avoiding device info flag. (Ville) Cc: Ville Syrjälä Signed-off-by: Rodrigo Vivi Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181031162845.12419-3-rodrigo.vivi@intel.com --- drivers/gpu/drm/i915/intel_display.c | 6 ------ drivers/gpu/drm/i915/intel_sprite.c | 1 + 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e25b708..f88dac8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -458,9 +458,6 @@ static const struct intel_limit intel_limits_bxt = { static void skl_wa_clkgate(struct drm_i915_private *dev_priv, int pipe, bool enable) { - if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv)) - return; - if (enable) I915_WRITE(CLKGATE_DIS_PSL(pipe), DUPS1_GATING_DIS | DUPS2_GATING_DIS); @@ -5227,9 +5224,6 @@ static bool needs_nv12_wa(struct drm_i915_private *dev_priv, if (!crtc_state->nv12_planes) return false; - if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv)) - return false; - if ((IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv)) || IS_CANNONLAKE(dev_priv)) return true; diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index e7c95ec..370c827 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -1868,6 +1868,7 @@ static bool skl_plane_has_planar(struct drm_i915_private *dev_priv, if (INTEL_GEN(dev_priv) >= 11) return plane_id <= PLANE_SPRITE3; + /* Display WA #0870: skl, bxt */ if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv)) return false; -- 2.7.4