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

[Rodrigo Vivi]

On Thu, Sep 27, 2018 at 05:35:00PM +0000, Souza, Jose wrote:
> 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>

Pushed both patches to dinq.

I accidentally forgot to propagate the rv-b to one of the
patches. I'm so sorry...

> 
> > 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 {
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