From: Lee, Shawn C Date: Thu, 27 Sep 2018 07:48:19 +0000 (-0700) Subject: drm/i915: Apply correct ddi translation table for AML device X-Git-Tag: Ubuntu-5.2.0-15.16~2958^2~15^2~351 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=dfdaa566b7d4ecbfcabbb624bc45c5221f142039;p=mirror_ubuntu-eoan-kernel.git drm/i915: Apply correct ddi translation table for AML device Amber Lake used the same gen graphics as Kaby Lake. Kernel driver should configure KBL's DDI buffer setting for AML ULX as well. So far, driver would load DDI translation table that used for KBL H/S platform and apply it on AML devices. But AML is belong to ULX series. This change will lead driver to apply KBL-Y's DDI table for AML devices to avoid unexpected eDP/DP signal quality issue. Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jose Roberto de Souza Signed-off-by: Lee, Shawn C Reviewed-by: José Roberto de Souza Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/1538034499-31256-2-git-send-email-shawn.c.lee@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 9e82281b4fdf..47960c92cbbf 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -642,7 +642,7 @@ skl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries) static const struct ddi_buf_trans * kbl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries) { - if (IS_KBL_ULX(dev_priv)) { + if (IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) { *n_entries = ARRAY_SIZE(kbl_y_ddi_translations_dp); return kbl_y_ddi_translations_dp; } else if (IS_KBL_ULT(dev_priv) || IS_CFL_ULT(dev_priv)) { @@ -658,7 +658,7 @@ static const struct ddi_buf_trans * skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries) { if (dev_priv->vbt.edp.low_vswing) { - if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { + if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) { *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp); return skl_y_ddi_translations_edp; } else if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv) || @@ -680,7 +680,7 @@ skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries) static const struct ddi_buf_trans * skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries) { - if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { + if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) { *n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi); return skl_y_ddi_translations_hdmi; } else {