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authorZhan Liu <zhan.liu@amd.com>2019-11-01 21:10:17 -0400
committerAlex Deucher <alexander.deucher@amd.com>2019-11-06 15:31:19 -0500
commitf9686ceedc0a04a3309e02195184c1779f602699 (patch)
tree020f44e5e03080b2daf9b75acbb0e4966c5fa3f8 /drivers/gpu
parentdrm/amdgpu: dont schedule jobs while in reset (diff)
downloadlinux-dev-f9686ceedc0a04a3309e02195184c1779f602699.tar.xz
linux-dev-f9686ceedc0a04a3309e02195184c1779f602699.zip
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>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index dfb208285a9c..6b2f2f1a1c9c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -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);