[Intel-gfx] [PATCH 4/4] drm/i915: Remove duplicated bxt/cnl/icl .modeset_calc_cdclk() funcs

[Matt Roper]

On Wed, Sep 11, 2019 at 04:31:29PM +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Reuse the same .modeset_calc_cdclk() function for all bxt+.
> 
> The only difference in between the cnl/icl and the bxt variants
> is the call to cnl_compute_min_voltage_level(). We can do that call
> just fine on older platforms since they leave min_voltage_level[]
> zeroed. Let's rename the function to bxt_compute_min_voltage_level()
> just so it stays consistent with the rest of the naming scheme.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_cdclk.c | 46 +++++-----------------
>  1 file changed, 9 insertions(+), 37 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
> index f5a99eb77efa..b8b3814ba116 100644
> --- a/drivers/gpu/drm/i915/display/intel_cdclk.c
> +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
> @@ -2017,6 +2017,10 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
>  }
>  
>  /*
> + * Account for port clock min voltage level requirements.
> + * This only really does something on CNL+ but can be
> + * called on earlier platforms as well.
> + *
>   * Note that this functions assumes that 0 is
>   * the lowest voltage value, and higher values
>   * correspond to increasingly higher voltages.
> @@ -2025,7 +2029,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
>   * future platforms this code will need to be
>   * adjusted.
>   */
> -static u8 cnl_compute_min_voltage_level(struct intel_atomic_state *state)
> +static u8 bxt_compute_min_voltage_level(struct intel_atomic_state *state)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
>  	struct intel_crtc *crtc;
> @@ -2195,43 +2199,11 @@ static int bxt_modeset_calc_cdclk(struct intel_atomic_state *state)
>  	cdclk = bxt_calc_cdclk(dev_priv, min_cdclk);
>  	vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
>  
> -	state->cdclk.logical.vco = vco;
> -	state->cdclk.logical.cdclk = cdclk;
> -	state->cdclk.logical.voltage_level =
> -		dev_priv->display.calc_voltage_level(cdclk);
> -
> -	if (!state->active_pipes) {
> -		cdclk = bxt_calc_cdclk(dev_priv, state->cdclk.force_min_cdclk);
> -		vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
> -
> -		state->cdclk.actual.vco = vco;
> -		state->cdclk.actual.cdclk = cdclk;
> -		state->cdclk.actual.voltage_level =
> -			dev_priv->display.calc_voltage_level(cdclk);
> -	} else {
> -		state->cdclk.actual = state->cdclk.logical;
> -	}
> -
> -	return 0;
> -}
> -
> -static int cnl_modeset_calc_cdclk(struct intel_atomic_state *state)
> -{
> -	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> -	int min_cdclk, cdclk, vco;
> -
> -	min_cdclk = intel_compute_min_cdclk(state);
> -	if (min_cdclk < 0)
> -		return min_cdclk;
> -
> -	cdclk = bxt_calc_cdclk(dev_priv, min_cdclk);
> -	vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
> -
>  	state->cdclk.logical.vco = vco;
>  	state->cdclk.logical.cdclk = cdclk;
>  	state->cdclk.logical.voltage_level =
>  		max(dev_priv->display.calc_voltage_level(cdclk),
> -		    cnl_compute_min_voltage_level(state));
> +		    bxt_compute_min_voltage_level(state));
>  
>  	if (!state->active_pipes) {
>  		cdclk = bxt_calc_cdclk(dev_priv, state->cdclk.force_min_cdclk);
> @@ -2466,17 +2438,17 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
>  {
>  	if (IS_ELKHARTLAKE(dev_priv)) {
>  		dev_priv->display.set_cdclk = bxt_set_cdclk;
> -		dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
> +		dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
>  		dev_priv->display.calc_voltage_level = ehl_calc_voltage_level;
>  		dev_priv->cdclk.table = icl_cdclk_table;
>  	} else if (INTEL_GEN(dev_priv) >= 11) {
>  		dev_priv->display.set_cdclk = bxt_set_cdclk;
> -		dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
> +		dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
>  		dev_priv->display.calc_voltage_level = icl_calc_voltage_level;
>  		dev_priv->cdclk.table = icl_cdclk_table;
>  	} else if (IS_CANNONLAKE(dev_priv)) {
>  		dev_priv->display.set_cdclk = bxt_set_cdclk;
> -		dev_priv->display.modeset_calc_cdclk = cnl_modeset_calc_cdclk;
> +		dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
>  		dev_priv->display.calc_voltage_level = cnl_calc_voltage_level;
>  		dev_priv->cdclk.table = cnl_cdclk_table;
>  	} else if (IS_GEN9_LP(dev_priv)) {
> -- 
> 2.21.0
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795