Need to protect DSC code with CONFIG_DRM_AMD_DC_DCN. Fixes the following build errors on arm64: ERROR: modpost: "dc_dsc_get_policy_for_timing" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! ERROR: modpost: "dc_dsc_compute_bandwidth_range" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! Fixes: 0087990a9f57 ("drm/amd/display: consider DSC pass-through during mode validation") Reported-by: Anders Roxell <anders.roxell@xxxxxxxxxx> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx> --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index ef6c94cd852b..0c52c0867211 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -1387,8 +1387,6 @@ bool pre_validate_dsc(struct drm_atomic_state *state, return (ret == 0); } -#endif - static unsigned int kbps_from_pbn(unsigned int pbn) { unsigned int kbps = pbn; @@ -1416,6 +1414,7 @@ static bool is_dsc_common_config_possible(struct dc_stream_state *stream, return bw_range->max_target_bpp_x16 && bw_range->min_target_bpp_x16; } +#endif /* CONFIG_DRM_AMD_DC_DCN */ enum dc_status dm_dp_mst_is_port_support_mode( struct amdgpu_dm_connector *aconnector, @@ -1428,6 +1427,7 @@ enum dc_status dm_dp_mst_is_port_support_mode( struct dc_dsc_bw_range bw_range = {0}; int bpp, pbn, branch_max_throughput_mps = 0; +#if defined(CONFIG_DRM_AMD_DC_DCN) /* * check if the mode could be supported if DSC pass-through is supported * AND check if there enough bandwidth available to support the mode @@ -1461,13 +1461,16 @@ enum dc_status dm_dp_mst_is_port_support_mode( return DC_FAIL_BANDWIDTH_VALIDATE; } } else { +#endif /* check if mode could be supported within full_pbn */ bpp = convert_dc_color_depth_into_bpc(stream->timing.display_color_depth) * 3; pbn = drm_dp_calc_pbn_mode(stream->timing.pix_clk_100hz / 10, bpp, false); if (pbn > aconnector->port->full_pbn) return DC_FAIL_BANDWIDTH_VALIDATE; +#if defined(CONFIG_DRM_AMD_DC_DCN) } +#endif /* check is mst dsc output bandwidth branch_overall_throughput_0_mps */ switch (stream->timing.pixel_encoding) { -- 2.37.1