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| author | Alvin Lee <alvin.lee2@amd.com> | 2023-12-04 15:19:34 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-19 15:18:14 -0500 |
| commit | 9dda0c07f00f511c112af135aa1ee349345037fa (patch) | |
| tree | 2e4b351d3239cf3bd3ab19518e1c4d6d2b4c3d76 /drivers/gpu/drm | |
| parent | ceb6a6f023fd3e8b07761ed900352ef574010bcb (diff) | |
| download | linux-stable-9dda0c07f00f511c112af135aa1ee349345037fa.tar.gz linux-stable-9dda0c07f00f511c112af135aa1ee349345037fa.tar.bz2 linux-stable-9dda0c07f00f511c112af135aa1ee349345037fa.zip | |
drm/amd/display: Revert " drm/amd/display: Use channel_width = 2 for vram table 3.0"
[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>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index 6a96810a477e..7cdb1a8a0ba0 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -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 This is because the channel_width - * param in the VRAM info table is changed in 7000 series and - * no longer represents the memory channel width.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; } |