On Tue, 10 Oct 2017, Ville Syrjala <[email protected]> wrote:
> From: Ville Syrjälä <[email protected]>
>
> Untangle intel_disable_ddi() by splitting it into DP and HDMI specific
> variants.
>
> Signed-off-by: Ville Syrjälä <[email protected]>
> ---
>  drivers/gpu/drm/i915/intel_ddi.c | 51 
> ++++++++++++++++++++++++----------------
>  1 file changed, 31 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c 
> b/drivers/gpu/drm/i915/intel_ddi.c
> index 945980e71697..c930ef0338c5 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2424,29 +2424,40 @@ static void intel_enable_ddi(struct intel_encoder 
> *intel_encoder,
>               intel_audio_codec_enable(intel_encoder, pipe_config, 
> conn_state);
>  }
>  
> -static void intel_disable_ddi(struct intel_encoder *intel_encoder,
> +static void intel_disable_ddi_dp(struct intel_encoder *encoder,
> +                              const struct intel_crtc_state *old_crtc_state,
> +                              const struct drm_connector_state 
> *old_conn_state)
> +{
> +     struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> +
> +     if (old_crtc_state->has_audio)
> +             intel_audio_codec_disable(encoder);
> +

You remove the eDP check here, and...

> +     intel_edp_drrs_disable(intel_dp, old_crtc_state);

...this will now depend on old_crtc_state->has_drrs which is probably
fine, but...

> +     intel_psr_disable(intel_dp, old_crtc_state);

...but this will be wrong. I don't mind adding the edp check within.

> +     intel_edp_backlight_off(old_conn_state);

This is ok.

I guess easiest would be to keep the type == INTEL_OUTPUT_EDP check and
clean up afterwards.

Otherwise LGTM.

BR,
Jani.



> +}
> +
> +static void intel_disable_ddi_hdmi(struct intel_encoder *encoder,
> +                                const struct intel_crtc_state 
> *old_crtc_state,
> +                                const struct drm_connector_state 
> *old_conn_state)
> +{
> +     if (old_crtc_state->has_audio)
> +             intel_audio_codec_disable(encoder);
> +
> +     intel_hdmi_handle_sink_scrambling(encoder,
> +                                       old_conn_state->connector,
> +                                       false, false);
> +}
> +
> +static void intel_disable_ddi(struct intel_encoder *encoder,
>                             const struct intel_crtc_state *old_crtc_state,
>                             const struct drm_connector_state *old_conn_state)
>  {
> -     struct drm_encoder *encoder = &intel_encoder->base;
> -     int type = intel_encoder->type;
> -
> -     if (old_crtc_state->has_audio)
> -             intel_audio_codec_disable(intel_encoder);
> -
> -     if (type == INTEL_OUTPUT_HDMI) {
> -             intel_hdmi_handle_sink_scrambling(intel_encoder,
> -                                               old_conn_state->connector,
> -                                               false, false);
> -     }
> -
> -     if (type == INTEL_OUTPUT_EDP) {
> -             struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
> -
> -             intel_edp_drrs_disable(intel_dp, old_crtc_state);
> -             intel_psr_disable(intel_dp, old_crtc_state);
> -             intel_edp_backlight_off(old_conn_state);
> -     }
> +     if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
> +             intel_disable_ddi_hdmi(encoder, old_crtc_state, old_conn_state);
> +     else
> +             intel_disable_ddi_dp(encoder, old_crtc_state, old_conn_state);
>  }
>  
>  static void bxt_ddi_pre_pll_enable(struct intel_encoder *encoder,

-- 
Jani Nikula, Intel Open Source Technology Center
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