[Intel-gfx] [PATCH v2 3/3] drm/i915/mst: Drop pre_pll_enable null check

[Rodrigo Vivi]

On Mon, Nov 05, 2018 at 12:25:52PM -0800, José Roberto de Souza wrote:
> MST is only supported in DDI ports that have this hook, so the null
> check can be dropped.
> 
> Suggested-by: Imre Deak <imre.deak at intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>

I feel that the extra check doesn't hurt since it is an
"optional" hook, but I don't believe it would be possible
to have any mst without this pre-enalble hook anyway so
we can remove...

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

> ---
>  drivers/gpu/drm/i915/intel_dp_mst.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
> index d57dc7900eb1..34ac1a7c2202 100644
> --- a/drivers/gpu/drm/i915/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/intel_dp_mst.c
> @@ -209,8 +209,7 @@ static void intel_mst_pre_pll_enable_dp(struct intel_encoder *encoder,
>  	struct intel_digital_port *intel_dig_port = intel_mst->primary;
>  	struct intel_dp *intel_dp = &intel_dig_port->dp;
>  
> -	if (intel_dp->active_mst_links == 0 &&
> -	    intel_dig_port->base.pre_pll_enable)
> +	if (intel_dp->active_mst_links == 0)
>  		intel_dig_port->base.pre_pll_enable(&intel_dig_port->base,
>  						    pipe_config, NULL);
>  }
> -- 
> 2.19.1
> 
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