iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
[Description]
Revert commit fec05adc40c2 ("drm/amd/display: Use channel_width = 2 for vram table 3.0")
Because the issue is being fixed from VBIOS side.

Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2023-12-04 15:19:34 -05:00 committed by Alex Deucher
parent ceb6a6f023
commit 9dda0c07f0
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
View File

@ -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* no longer represents the memory channel width.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;
}