On Fri, Sep 18, 2020 at 12:43:34AM +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <[email protected]>
> 
> Pass the output_format directly to intel_dp_{min,output}_bpp()
> rather than passing in the crtc_state and digging out the
> output_format inside the functions. This will allow us to reuse
> the functions for mode validation purposes.
> 
> Signed-off-by: Ville Syrjälä <[email protected]>

Looks good

Reviewed-by: Manasi Navare <[email protected]>

Manasi

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c     | 15 ++++++++-------
>  drivers/gpu/drm/i915/display/intel_dp.h     |  3 ++-
>  drivers/gpu/drm/i915/display/intel_dp_mst.c |  2 +-
>  3 files changed, 11 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
> b/drivers/gpu/drm/i915/display/intel_dp.c
> index ad9b8b16fadb..aa4801a8123d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2111,14 +2111,14 @@ intel_dp_adjust_compliance_config(struct intel_dp 
> *intel_dp,
>       }
>  }
>  
> -static int intel_dp_output_bpp(const struct intel_crtc_state *crtc_state, 
> int bpp)
> +static int intel_dp_output_bpp(enum intel_output_format output_format, int 
> bpp)
>  {
>       /*
>        * bpp value was assumed to RGB format. And YCbCr 4:2:0 output
>        * format of the number of bytes per pixel will be half the number
>        * of bytes of RGB pixel.
>        */
> -     if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
> +     if (output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
>               bpp /= 2;
>  
>       return bpp;
> @@ -2135,7 +2135,7 @@ intel_dp_compute_link_config_wide(struct intel_dp 
> *intel_dp,
>       int mode_rate, link_clock, link_avail;
>  
>       for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) {
> -             int output_bpp = intel_dp_output_bpp(pipe_config, bpp);
> +             int output_bpp = 
> intel_dp_output_bpp(pipe_config->output_format, bpp);
>  
>               mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock,
>                                                  output_bpp);
> @@ -2346,9 +2346,9 @@ static int intel_dp_dsc_compute_config(struct intel_dp 
> *intel_dp,
>       return 0;
>  }
>  
> -int intel_dp_min_bpp(const struct intel_crtc_state *crtc_state)
> +int intel_dp_min_bpp(enum intel_output_format output_format)
>  {
> -     if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_RGB)
> +     if (output_format == INTEL_OUTPUT_FORMAT_RGB)
>               return 6 * 3;
>       else
>               return 8 * 3;
> @@ -2379,7 +2379,7 @@ intel_dp_compute_link_config(struct intel_encoder 
> *encoder,
>       limits.min_lane_count = 1;
>       limits.max_lane_count = intel_dp_max_lane_count(intel_dp);
>  
> -     limits.min_bpp = intel_dp_min_bpp(pipe_config);
> +     limits.min_bpp = intel_dp_min_bpp(pipe_config->output_format);
>       limits.max_bpp = intel_dp_max_bpp(intel_dp, pipe_config);
>  
>       if (intel_dp_is_edp(intel_dp)) {
> @@ -2765,7 +2765,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
>       if (pipe_config->dsc.compression_enable)
>               output_bpp = pipe_config->dsc.compressed_bpp;
>       else
> -             output_bpp = intel_dp_output_bpp(pipe_config, 
> pipe_config->pipe_bpp);
> +             output_bpp = intel_dp_output_bpp(pipe_config->output_format,
> +                                              pipe_config->pipe_bpp);
>  
>       intel_link_compute_m_n(output_bpp,
>                              pipe_config->lane_count,
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h 
> b/drivers/gpu/drm/i915/display/intel_dp.h
> index 08a1c0aa8b94..a9580d1df35b 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -10,6 +10,7 @@
>  
>  #include "i915_reg.h"
>  
> +enum intel_output_format;
>  enum pipe;
>  enum port;
>  struct drm_connector_state;
> @@ -35,7 +36,7 @@ void intel_dp_adjust_compliance_config(struct intel_dp 
> *intel_dp,
>                                      struct link_config_limits *limits);
>  bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state,
>                                 const struct drm_connector_state *conn_state);
> -int intel_dp_min_bpp(const struct intel_crtc_state *crtc_state);
> +int intel_dp_min_bpp(enum intel_output_format output_format);
>  bool intel_dp_port_enabled(struct drm_i915_private *dev_priv,
>                          i915_reg_t dp_reg, enum port port,
>                          enum pipe *pipe);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c 
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 64d885539e94..6a874b779b1f 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -130,7 +130,7 @@ static int intel_dp_mst_compute_config(struct 
> intel_encoder *encoder,
>       limits.min_lane_count =
>       limits.max_lane_count = intel_dp_max_lane_count(intel_dp);
>  
> -     limits.min_bpp = intel_dp_min_bpp(pipe_config);
> +     limits.min_bpp = intel_dp_min_bpp(pipe_config->output_format);
>       /*
>        * FIXME: If all the streams can't fit into the link with
>        * their current pipe_bpp we should reduce pipe_bpp across
> -- 
> 2.26.2
> 
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