[Intel-gfx] [PATCH] drm/i915/cnl: allow HDMI 2.0 clock rates

[Rodrigo Vivi]

Please ignore this patch.

Freq is wrong... shoudl be 594000 as GLK but also other parts are
missing. Causes blank screen on CNL with HDMI 2.0 panel.

On Tue, Sep 26, 2017 at 3:13 PM, Rodrigo Vivi <rodrigo.vivi at intel.com> wrote:
> From: Shashank Sharma <shashank.sharma at intel.com>
>
> From GLK onwards, Intel platforms contain native HDMI 2.0
> controller, which is capable of driving clocks upto 600Mhz.
> This patch updates the max tmds clock limit for the same.
>
> V2: check for gen 10 and above (Ville)
>     align the gen10 condition with upper line (Ander)
> V3: rebase on top of patch-2-v3
> v4: (by Rodrigo): Besides rebasing it s/gen9_lp/glk+ on this
>     commit message.
>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_hdmi.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index e6f8f30ce7bd..f70591a024f0 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1222,6 +1222,8 @@ static int intel_hdmi_source_max_tmds_clock(struct drm_i915_private *dev_priv)
>  {
>         if (IS_G4X(dev_priv))
>                 return 165000;
> +       else if (INTEL_INFO(dev_priv)->gen >= 10)
> +               return 600000;
>         else if (IS_GEMINILAKE(dev_priv))
>                 return 594000;
>         else if (IS_HASWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 8)
> --
> 2.13.5
>
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-- 
Rodrigo Vivi
Blog: http://blog.vivi.eng.br