Re: [PATCH 4/5] drm/i915/gen11: Start distinguishing 'phy' from 'port'

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On Sat, Jun 22, 2019 at 12:24:10AM +0000, Souza, Jose wrote:
> On Fri, 2019-06-21 at 07:08 -0700, Matt Roper wrote:
> > @@ -2912,18 +2920,19 @@ static void intel_ddi_clk_disable(struct
> > intel_encoder *encoder)
> >  {
> >  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> >  	enum port port = encoder->port;
> > +	enum phy phy = intel_port_to_phy(dev_priv, port);
> >  
> >  	if (INTEL_GEN(dev_priv) >= 11) {
> > -		if (!intel_port_is_combophy(dev_priv, port))
> > -			I915_WRITE(DDI_CLK_SEL(port),
> > DDI_CLK_SEL_NONE);
> > +		if (!intel_phy_is_combo(dev_priv, phy))
> > +			I915_WRITE(DDI_CLK_SEL(phy), DDI_CLK_SEL_NONE);
> 
> 
> DDI_CLK_SEL() sets the clock to DDI so it should be port.
> 
> Same for the registers bellow

I guess the rought guideline should be the register offset:

0x6Cxxx / 0x16xxxx -> phy
everything else -> port

or at least that's the impression I got from the quick read
of the spec.

-- 
Ville Syrjälä
Intel
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