| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 001/141] Revert "drm/amd/display: Fix DCN3 B0 DP Alt Mapping" | Date | Mon, 20 Jun 2022 14:48:59 +0200 |
| |
From: Stylon Wang <stylon.wang@amd.com>
commit 1039188806d4cfdf9c412bb4ddb51b4d8cd15478 upstream.
This reverts commit 4b7786d87fb3adf3e534c4f1e4f824d8700b786b.
Commit 4b7786d87fb3 ("drm/amd/display: Fix DCN3 B0 DP Alt Mapping") is causing 2nd USB-C display not lighting up. Phy id remapping is done differently than is assumed in this patch.
Signed-off-by: Stylon Wang <stylon.wang@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: "Limonciello, Mario" <Mario.Limonciello@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 6 ------ 1 file changed, 6 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c @@ -1392,12 +1392,6 @@ static struct stream_encoder *dcn31_stre return NULL; } - if (ctx->asic_id.chip_family == FAMILY_YELLOW_CARP && - ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) { - if ((eng_id == ENGINE_ID_DIGC) || (eng_id == ENGINE_ID_DIGD)) - eng_id = eng_id + 3; // For B0 only. C->F, D->G. - } - dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id, vpg, afmt, &stream_enc_regs[eng_id],
|