Re: [v12 11/15] drm/i915/lspcon: Create separate infoframe_enabled helper

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On Fri, Nov 27, 2020 at 02:33:10AM +0530, Uma Shankar wrote:
> Lspcon has Infoframes as well as DIP for HDR metadata(DRM Infoframe).
> Create a separate mechanism for lspcon compared to HDMI in order to
> address the same and ensure future scalability.
> 
> v2: Streamlined this as per Ville's suggestions, making sure that
> HDMI infoframe versions are directly returned instead of a redundant
> and confusing DIP overhead.
> 
> Suggested-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c    | 10 +++++++---
>  drivers/gpu/drm/i915/display/intel_lspcon.c |  9 +++++++++
>  drivers/gpu/drm/i915/display/intel_lspcon.h |  2 ++
>  3 files changed, 18 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 92940a0c5ef8..48da5dc59939 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -4583,6 +4583,7 @@ static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
>  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>  	struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
>  	enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
> +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
>  	u32 temp, flags = 0;
>  
>  	temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
> @@ -4657,9 +4658,12 @@ static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
>  				    pipe_config->fec_enable);
>  		}
>  
> -		pipe_config->infoframes.enable |=
> -			intel_hdmi_infoframes_enabled(encoder, pipe_config);
> -
> +		if (dig_port->lspcon.active && dig_port->dp.has_hdmi_sink)
> +			pipe_config->infoframes.enable |=
> +				intel_lspcon_infoframes_enabled(encoder, pipe_config);
> +		else
> +			pipe_config->infoframes.enable |=
> +				intel_hdmi_infoframes_enabled(encoder, pipe_config);
>  		break;
>  	case TRANS_DDI_MODE_SELECT_DP_MST:
>  		pipe_config->output_types |= BIT(INTEL_OUTPUT_DP_MST);
> diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
> index 592c19deba00..303f23d35020 100644
> --- a/drivers/gpu/drm/i915/display/intel_lspcon.c
> +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
> @@ -30,6 +30,7 @@
>  #include "intel_display_types.h"
>  #include "intel_dp.h"
>  #include "intel_lspcon.h"
> +#include "intel_hdmi.h"

Why do you need that header?

With that potentially removed if it's not needed.
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

>  
>  /* LSPCON OUI Vendor ID(signatures) */
>  #define LSPCON_VENDOR_PARADE_OUI 0x001CF8
> @@ -601,6 +602,14 @@ bool lspcon_init(struct intel_digital_port *dig_port)
>  	return true;
>  }
>  
> +u32 intel_lspcon_infoframes_enabled(struct intel_encoder *encoder,
> +				    const struct intel_crtc_state *pipe_config)
> +{
> +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +
> +	return dig_port->infoframes_enabled(encoder, pipe_config);
> +}
> +
>  void lspcon_resume(struct intel_digital_port *dig_port)
>  {
>  	struct intel_lspcon *lspcon = &dig_port->lspcon;
> diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.h b/drivers/gpu/drm/i915/display/intel_lspcon.h
> index 42ccb21c908f..44aa6bc38512 100644
> --- a/drivers/gpu/drm/i915/display/intel_lspcon.h
> +++ b/drivers/gpu/drm/i915/display/intel_lspcon.h
> @@ -33,6 +33,8 @@ void lspcon_set_infoframes(struct intel_encoder *encoder,
>  			   const struct drm_connector_state *conn_state);
>  u32 lspcon_infoframes_enabled(struct intel_encoder *encoder,
>  			      const struct intel_crtc_state *pipe_config);
> +u32 intel_lspcon_infoframes_enabled(struct intel_encoder *encoder,
> +				    const struct intel_crtc_state *pipe_config);
>  void hsw_write_infoframe(struct intel_encoder *encoder,
>  			 const struct intel_crtc_state *crtc_state,
>  			 unsigned int type,
> -- 
> 2.26.2

-- 
Ville Syrjälä
Intel
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