On Fri, 27 Mar 2020, Vipin Anand <vipin.an...@intel.com> wrote:
> this patch adds hdr capabilities checks for Gen9 devices with
> lspcon support.

My earlier feedback to this patch holds. I don't really understand what
you're trying to achieve.

BR,
Jani.

>
> Signed-off-by: Vipin Anand <vipin.an...@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_hdmi.c   | 17 +++++++++++++----
>  drivers/gpu/drm/i915/display/intel_lspcon.c |  9 +++++++--
>  2 files changed, 20 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c 
> b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index 9ae2f88cc925..70d0d76ed606 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -833,9 +833,12 @@ intel_hdmi_compute_drm_infoframe(struct intel_encoder 
> *encoder,
>  {
>       struct hdmi_drm_infoframe *frame = &crtc_state->infoframes.drm.drm;
>       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> +     struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
>       int ret;
>  
> -     if (!(INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)))
> +     if (!(INTEL_GEN(dev_priv) >= 10 ||
> +           (((INTEL_GEN(dev_priv) >= 9)) &&
> +           intel_dig_port->lspcon.active)))
>               return true;
>  
>       if (!crtc_state->has_infoframe)
> @@ -2102,9 +2105,12 @@ static int intel_hdmi_source_max_tmds_clock(struct 
> intel_encoder *encoder)
>       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>       const struct ddi_vbt_port_info *info =
>               &dev_priv->vbt.ddi_port_info[encoder->port];
> +     struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
>       int max_tmds_clock;
>  
> -     if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
> +     if (INTEL_GEN(dev_priv) >= 10 ||
> +         (((INTEL_GEN(dev_priv) >= 9)) &&
> +                      intel_dig_port->lspcon.active))
>               max_tmds_clock = 594000;
>       else if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
>               max_tmds_clock = 300000;
> @@ -2423,6 +2429,7 @@ int intel_hdmi_compute_config(struct intel_encoder 
> *encoder,
>       struct intel_digital_connector_state *intel_conn_state =
>               to_intel_digital_connector_state(conn_state);
>       bool force_dvi = intel_conn_state->force_audio == HDMI_AUDIO_OFF_DVI;
> +     struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
>       int ret;
>  
>       if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
> @@ -2469,7 +2476,8 @@ int intel_hdmi_compute_config(struct intel_encoder 
> *encoder,
>       pipe_config->lane_count = 4;
>  
>       if (scdc->scrambling.supported && (INTEL_GEN(dev_priv) >= 10 ||
> -                                        IS_GEMINILAKE(dev_priv))) {
> +                                        (((INTEL_GEN(dev_priv) >= 9)) &&
> +                                         intel_dig_port->lspcon.active))) {
>               if (scdc->scrambling.low_rates)
>                       pipe_config->hdmi_scrambling = true;
>  
> @@ -3171,7 +3179,8 @@ void intel_hdmi_init_connector(struct 
> intel_digital_port *intel_dig_port,
>       connector->doublescan_allowed = 0;
>       connector->stereo_allowed = 1;
>  
> -     if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
> +     if (INTEL_GEN(dev_priv) >= 10 ||
> +         (((INTEL_GEN(dev_priv) >= 9)) && intel_dig_port->lspcon.active))
>               connector->ycbcr_420_allowed = true;
>  
>       intel_encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port);
> diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c 
> b/drivers/gpu/drm/i915/display/intel_lspcon.c
> index 5cede4f07f22..be074acd74f3 100644
> --- a/drivers/gpu/drm/i915/display/intel_lspcon.c
> +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
> @@ -116,6 +116,8 @@ static bool lspcon_detect_hdr_capability(struct 
> intel_lspcon *lspcon)
>       if (lspcon->vendor == LSPCON_VENDOR_MCA)
>               ret = drm_dp_dpcd_read(&dp->aux, DPCD_MCA_LSPCON_HDR_STATUS,
>                                      &hdr_caps, 1);
> +     else if (lspcon->vendor == LSPCON_VENDOR_PARADE)
> +             return true;
>       else
>               return false;
>  
> @@ -474,7 +476,8 @@ void lspcon_write_infoframe(struct intel_encoder *encoder,
>        * Todo: Add support for Parade later
>        */
>       if (type == HDMI_PACKET_TYPE_GAMUT_METADATA &&
> -         lspcon->vendor != LSPCON_VENDOR_MCA)
> +             (lspcon->vendor != LSPCON_VENDOR_MCA ||
> +              lspcon->vendor != LSPCON_VENDOR_PARADE))
>               return;
>  
>       if (lspcon->vendor == LSPCON_VENDOR_MCA) {
> @@ -646,7 +649,9 @@ bool lspcon_init(struct intel_digital_port 
> *intel_dig_port)
>               return false;
>       }
>  
> -     if (lspcon->vendor == LSPCON_VENDOR_MCA && lspcon->hdr_supported)
> +     if ((lspcon->vendor == LSPCON_VENDOR_MCA ||
> +          lspcon->vendor == LSPCON_VENDOR_PARADE) &&
> +          lspcon->hdr_supported)
>               drm_object_attach_property(&connector->base,
>                                          
> connector->dev->mode_config.hdr_output_metadata_property,
>                                          0);

-- 
Jani Nikula, Intel Open Source Graphics Center
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