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| author | yanyan kang <Yanyan.Kang@amd.com> | 2020-04-20 14:40:43 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-05-05 13:11:56 -0400 |
| commit | e0a3794d226a5ab30ca6d68069bf32ed48c632bf (patch) | |
| tree | 21a6e14125e00070c96dd1c7cb85c7bf73b11253 | |
| parent | 1cfbbddead0abd8551ad2da5630cefea0a4289a6 (diff) | |
| download | linux-stable-e0a3794d226a5ab30ca6d68069bf32ed48c632bf.tar.gz linux-stable-e0a3794d226a5ab30ca6d68069bf32ed48c632bf.tar.bz2 linux-stable-e0a3794d226a5ab30ca6d68069bf32ed48c632bf.zip | |
drm/amd/display: The external monitor will show gray screen during SUT reboot
[Why]
same with CL#1711022(correcting yuv420 black color in function dcn10_blank_pixel_data,program_scaler),
yuv420 black color also needs to be correct when enabling HDMI stream at the resume procedure.
[How]
correcting the yuv420 black color according to the way how 420 is packed :2 channels carry Y component,
1 channel alternate between Cb and Cr.
Signed-off-by: yanyan kang <Yanyan.Kang@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index b33eafe45f76..f36d1f57b846 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -826,6 +826,14 @@ enum dc_status dcn10_enable_stream_timing( color_space = stream->output_color_space; color_space_to_black_color(dc, color_space, &black_color); + /* + * The way 420 is packed, 2 channels carry Y component, 1 channel + * alternate between Cb and Cr, so both channels need the pixel + * value for Y + */ + if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) + black_color.color_r_cr = black_color.color_g_y; + if (pipe_ctx->stream_res.tg->funcs->set_blank_color) pipe_ctx->stream_res.tg->funcs->set_blank_color( pipe_ctx->stream_res.tg, @@ -2254,6 +2262,14 @@ void dcn10_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx) &blnd_cfg.black_color); } + /* + * The way 420 is packed, 2 channels carry Y component, 1 channel + * alternate between Cb and Cr, so both channels need the pixel + * value for Y + */ + if (pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) + blnd_cfg.black_color.color_r_cr = blnd_cfg.black_color.color_g_y; + if (per_pixel_alpha) blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_PER_PIXEL_ALPHA; else |