[Intel-gfx] [PATCH 07/15] drm/i915: PSR skip aux on wake up as defined by VBT.

[Rodrigo Vivi]

Please ignore this patch for now.

On SDP platforms VBT isn't set so we get a false positive on this
value causing frozen screens.

On Fri, Nov 14, 2014 at 8:52 AM, Rodrigo Vivi <rodrigo.vivi at intel.com> wrote:
> Let's always skip aux on exit unless specified at VBT we need it.
>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_psr.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> index e706c9d..4cfe7a4 100644
> --- a/drivers/gpu/drm/i915/intel_psr.c
> +++ b/drivers/gpu/drm/i915/intel_psr.c
> @@ -180,11 +180,13 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp)
>                 val |= EDP_PSR_LINK_STANDBY;
>                 val |= EDP_PSR_TP2_TP3_TIME_0us;
>                 val |= EDP_PSR_TP1_TIME_0us;
> -               val |= EDP_PSR_SKIP_AUX_EXIT;
>                 val |= IS_BROADWELL(dev) ? BDW_PSR_SINGLE_FRAME : 0;
>         } else
>                 val |= EDP_PSR_LINK_DISABLE;
>
> +       if (!dev_priv->vbt.psr.require_aux_wakeup)
> +               val |= EDP_PSR_SKIP_AUX_EXIT;
> +
>         I915_WRITE(EDP_PSR_CTL(dev), val |
>                    (IS_BROADWELL(dev) ? 0 : link_entry_time) |
>                    max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT |
> --
> 1.9.3
>
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-- 
Rodrigo Vivi
Blog: http://blog.vivi.eng.br