[Intel-gfx] [PATCH 2/3] drm/i915: fix FP CB tuning limits for lvds

[Paulo Zanoni]

Hi

2013/4/4 Daniel Vetter <daniel.vetter at ffwll.ch>:
> Only on IBX should we set the limiting factor to 25 unconditionally
> for dual-channel mode, on CPT/PPT 25 only applies when the lvds
> refclock is 100MHz.
>
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

> ---
>  drivers/gpu/drm/i915/intel_display.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index f623f97..cb3e23f 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -5408,7 +5408,7 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
>         if (is_lvds) {
>                 if ((intel_panel_use_ssc(dev_priv) &&
>                      dev_priv->lvds_ssc_freq == 100) ||
> -                   intel_is_dual_link_lvds(dev))
> +                   (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
>                         factor = 25;
>         } else if (is_sdvo && is_tv)
>                 factor = 20;
> --
> 1.7.10.4
>
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--
Paulo Zanoni