[Intel-gfx] [PATCH 2/2] drm/i915: Apply correct ddi translation table for AML device

[Souza, Jose]

On Thu, 2018-09-27 at 00:48 -0700, Lee, Shawn C wrote:
> 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 <jani.nikula at intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Cc: Jose Roberto de Souza <jose.souza at intel.com>

On both patches:
Reviewed-by: José Roberto de Souza <jose.souza at intel.com>

> Signed-off-by: Lee, Shawn C <shawn.c.lee at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_ddi.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> b/drivers/gpu/drm/i915/intel_ddi.c
> index b6910c8b4e08..b051970912a3 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 {