UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14 

[Why]
Navi10 has 6 PHY, but Navi14 only has 5 PHY, that is
because there is no ENGINE_ID_DIGD in Navi14. Without
this patch, many HDMI related issues (e.g. HDMI S3
resume failure, HDMI pink screen on boot) will be
observed.

[How]
If "eng_id" is larger than ENGINE_ID_DIGD, then
add "eng_id" by 1.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhan Liu 2019-11-01 21:10:17 -04:00 committed by Alex Deucher
parent f2efc6e600
commit f9686ceedc
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
View File

@ -1107,6 +1107,11 @@ struct stream_encoder *dcn20_stream_encoder_create(
if (!enc1)
return NULL;
if (ASICREV_IS_NAVI14_M(ctx->asic_id.hw_internal_rev)) {
if (eng_id >= ENGINE_ID_DIGD)
eng_id++;
}
dcn20_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id,
&stream_enc_regs[eng_id],
&se_shift, &se_mask);