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drm/amd/display: Add debug option to override DSC target bpp increment

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[why]
It's required for debug purposes.

[how]
Add a dsc_bpp_increment_div debug option that overrides DPCD
BITS_PER_PIXEL_INCREMENT value. The value dsc_bpp_increment_div should
be set to is the one after parsing, i.e. it could be 1, 2, 4, 8 or 16
(meaning 1pix, 1/2pix, ..., 1/16pix).

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nikola Cornij
2019-12-03 17:01:12 -05:00
committed by Alex Deucher
parent e97ed49690
commit 2af0f378c4
4 changed files with 23 additions and 3 deletions
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3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -4075,7 +4075,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
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,
dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
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