Re: [PATCH] drm/amdgpu/display: fix the build when CONFIG_DRM_AMD_DC_DCN is not set

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On 2019-11-06 8:52 p.m., Alex Deucher wrote:
> Need to protect some DSC functions.
> 
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>

Harry

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index a1bdd51c50f7..fcbcf52a77e0 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -3891,7 +3891,9 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
>  	bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
>  	int mode_refresh;
>  	int preferred_refresh = 0;
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>  	struct dsc_dec_dpcd_caps dsc_caps;
> +#endif
>  	uint32_t link_bandwidth_kbps;
>  
>  	struct dc_sink *sink = NULL;
> @@ -3970,12 +3972,15 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
>  	stream->timing.flags.DSC = 0;
>  
>  	if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>  		dc_dsc_parse_dsc_dpcd(aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw,
>  				      aconnector->dc_link->dpcd_caps.dsc_caps.dsc_ext_caps.raw,
>  				      &dsc_caps);
> +#endif
>  		link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
>  							     dc_link_get_link_cap(aconnector->dc_link));
>  
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>  		if (dsc_caps.is_dsc_supported)
>  			if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
>  						  &dsc_caps,
> @@ -3984,6 +3989,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
>  						  &stream->timing,
>  						  &stream->timing.dsc_cfg))
>  				stream->timing.flags.DSC = 1;
> +#endif
>  	}
>  
>  	update_stream_scaling_settings(&mode, dm_state, stream);
> 
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