From: Ville Syrjälä Date: Tue, 12 May 2020 17:41:40 +0000 (+0300) Subject: drm/i915: Fix ibx max vswing/preemph X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=da882e6bb968b04195c32072376c4206f64037ef;p=linux.git drm/i915: Fix ibx max vswing/preemph IBX supports vswing level 3 and pre-emphasis level 3. Don't limit it to level 2 for those. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200512174145.3186-3-ville.syrjala@linux.intel.com Reviewed-by: José Roberto de Souza --- diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 338f6d046de33..67cb712f2d8fc 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4001,7 +4001,7 @@ intel_dp_voltage_max(struct intel_dp *intel_dp) if (HAS_DDI(dev_priv)) return intel_ddi_dp_voltage_max(encoder); else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv) || - (HAS_PCH_CPT(dev_priv) && port != PORT_A)) + (HAS_PCH_SPLIT(dev_priv) && port != PORT_A)) return DP_TRAIN_VOLTAGE_SWING_LEVEL_3; else if (IS_IVYBRIDGE(dev_priv) && port == PORT_A) return DP_TRAIN_VOLTAGE_SWING_LEVEL_2; @@ -4019,7 +4019,7 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, u8 voltage_swing) if (HAS_DDI(dev_priv)) { return intel_ddi_dp_pre_emphasis_max(encoder, voltage_swing); } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv) || - (HAS_PCH_CPT(dev_priv) && port != PORT_A)) { + (HAS_PCH_SPLIT(dev_priv) && port != PORT_A)) { switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { case DP_TRAIN_VOLTAGE_SWING_LEVEL_0: return DP_TRAIN_PRE_EMPH_LEVEL_3;