Re: [PATCH 03/16] drm/i915: Extract intel_dp_use_bigjoiner()

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On Mon, 13 Sep 2021, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Suck the "do we need bigjoiner?" checks into a helper instead of
> duplicating them in two differentt places.

Could've called it intel_dp_need_bigjoiner() but meh.

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>


>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 19 ++++++++++++++-----
>  1 file changed, 14 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 161c33b2c869..e898834cc5f9 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -805,6 +805,17 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
>  	return MODE_OK;
>  }
>  
> +static bool intel_dp_use_bigjoiner(struct intel_dp *intel_dp,
> +				   int hdisplay, int clock)
> +{
> +	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> +
> +	if (!intel_dp_can_bigjoiner(intel_dp))
> +		return false;
> +
> +	return clock > i915->max_dotclk_freq || hdisplay > 5120;
> +}
> +
>  static enum drm_mode_status
>  intel_dp_mode_valid(struct drm_connector *connector,
>  		    struct drm_display_mode *mode)
> @@ -840,8 +851,7 @@ intel_dp_mode_valid(struct drm_connector *connector,
>  	if (mode->clock < 10000)
>  		return MODE_CLOCK_LOW;
>  
> -	if ((target_clock > max_dotclk || mode->hdisplay > 5120) &&
> -	    intel_dp_can_bigjoiner(intel_dp)) {
> +	if (intel_dp_use_bigjoiner(intel_dp, mode->hdisplay, target_clock)) {
>  		bigjoiner = true;
>  		max_dotclk *= 2;
>  	}
> @@ -1457,9 +1467,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
>  		    limits.max_lane_count, limits.max_rate,
>  		    limits.max_bpp, adjusted_mode->crtc_clock);
>  
> -	if ((adjusted_mode->crtc_clock > i915->max_dotclk_freq ||
> -	     adjusted_mode->crtc_hdisplay > 5120) &&
> -	    intel_dp_can_bigjoiner(intel_dp))
> +	if (intel_dp_use_bigjoiner(intel_dp, adjusted_mode->crtc_hdisplay,
> +				   adjusted_mode->crtc_clock))
>  		pipe_config->bigjoiner = true;
>  
>  	/*

-- 
Jani Nikula, Intel Open Source Graphics Center




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