Commit 9dda0c07 authored by Alvin Lee's avatar Alvin Lee Committed by Alex Deucher
Browse files

drm/amd/display: Revert " drm/amd/display: Use channel_width = 2 for vram table 3.0" 



[Description]
Revert commit fec05adc ("drm/amd/display: Use channel_width = 2 for vram table 3.0")
Because the issue is being fixed from VBIOS side.

Reviewed-by: default avatarSamson Tam <samson.tam@amd.com>
Acked-by: default avatarWayne Lin <wayne.lin@amd.com>
Signed-off-by: default avatarAlvin Lee <alvin.lee2@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ceb6a6f0

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

+1 −7
Original line number Diff line number Diff line
@@ -2386,13 +2386,7 @@ static enum bp_result get_vram_info_v30( 
		return BP_RESULT_BADBIOSTABLE;



	info->num_chans = info_v30->channel_num;

	/* As suggested by VBIOS we should always use

	 * dram_channel_width_bytes = 2 when using VRAM

	 * table version 3.0. This is because the channel_width

	 * param in the VRAM info table is changed in 7000 series and

	 * no longer represents the memory channel width.

	 */

	info->dram_channel_width_bytes = 2;

	info->dram_channel_width_bytes = (1 << info_v30->channel_width) / 8;



	return result;

}