[PATCH v2 3/3] drm/i915: DDI: call intel_psr_ and _edp_drrs_enable() on pipe updates (v2)

[Rodrigo Vivi]

On Thu, Dec 20, 2018 at 02:21:20PM +0100, Hans de Goede wrote:
> Call intel_psr_enable() and intel_edp_drrs_enable() on pipe updates to make
> sure that we enable PSR / DRRS (when applicable) on fastsets.
> 
> Note calling these functions when PSR / DRRS has already been enabled is a
> no-op, so it is safe to do this on every encoder->update_pipe callback.
> 
> Changes in v2:
> -Merge the patches adding the intel_psr_enable() and intel_edp_drrs_enable()
>  calls into a single patch
> 
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Cc: José Roberto de Souza <jose.souza at intel.com>

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

> ---
>  drivers/gpu/drm/i915/intel_ddi.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index e3cc19e19199..fdf57f451b72 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -3537,6 +3537,24 @@ static void intel_disable_ddi(struct intel_encoder *encoder,
>  		intel_disable_ddi_dp(encoder, old_crtc_state, old_conn_state);
>  }
>  
> +static void intel_ddi_update_pipe_dp(struct intel_encoder *encoder,
> +				     const struct intel_crtc_state *crtc_state,
> +				     const struct drm_connector_state *conn_state)
> +{
> +	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> +
> +	intel_psr_enable(intel_dp, crtc_state);
> +	intel_edp_drrs_enable(intel_dp, crtc_state);
> +}
> +
> +static void intel_ddi_update_pipe(struct intel_encoder *encoder,
> +				  const struct intel_crtc_state *crtc_state,
> +				  const struct drm_connector_state *conn_state)
> +{
> +	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
> +		intel_ddi_update_pipe_dp(encoder, crtc_state, conn_state);
> +}
> +
>  static void intel_ddi_set_fia_lane_count(struct intel_encoder *encoder,
>  					 const struct intel_crtc_state *pipe_config,
>  					 enum port port)
> @@ -4169,6 +4187,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
>  	intel_encoder->pre_enable = intel_ddi_pre_enable;
>  	intel_encoder->disable = intel_disable_ddi;
>  	intel_encoder->post_disable = intel_ddi_post_disable;
> +	intel_encoder->update_pipe = intel_ddi_update_pipe;
>  	intel_encoder->get_hw_state = intel_ddi_get_hw_state;
>  	intel_encoder->get_config = intel_ddi_get_config;
>  	intel_encoder->suspend = intel_ddi_encoder_suspend;
> -- 
> 2.20.1
>