Commit f9686cee authored by Zhan Liu's avatar Zhan Liu Committed by Alex Deucher
Browse files

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: default avatarZhan Liu <zhan.liu@amd.com>
Reviewed-by: default avatarHersen Wu <hersenxs.wu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f2efc6e6

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

+5 −0
Original line number Diff line number Diff line
@@ -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);