[Bug 65995] [HSW mobile] eDP can't light up when boot up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65995

--- Comment #8 from shui yangwei <yangweix.shui at intel.com> ---
(In reply to comment #7)
> Possibly related bug https://bugzilla.kernel.org/show_bug.cgi?id=59841 with
> a hack:
> 
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp.c
> b/drivers/gpu/drm/i915/intel_dp.c
> index 24a44ed..3ad6bef 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -102,7 +102,7 @@ intel_dp_max_link_bw(struct intel_dp *intel_dp)
>  static int
>  intel_dp_link_required(int pixel_clock, int bpp)
>  {
> -       return (pixel_clock * bpp + 9) / 10;
> +       return (pixel_clock * bpp + 9) / 10 * 40 / 39;
>  }
> 
>  static int

I tried this patch on latest -next-queued, and I find issue also exists. I
don't think this is related to the bug you give. When I start X and with
another pipe connected, then eDP could light up.

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