diff options
| author | Duncan Ma <duncan.ma@amd.com> | 2022-08-24 21:35:03 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-13 21:33:00 +0300 |
| commit | 247a94a627dbd9fed370b575288b874ef4a01991 (patch) | |
| tree | fce974ed325ffbeba4c201acb2f85e5b6469f979 /drivers/gpu/drm/amd/display/dc/clk_mgr | |
| parent | e7dbdfa226ce621931a84f60e885d42c232fb990 (diff) | |
| download | linux-247a94a627dbd9fed370b575288b874ef4a01991.tar.xz | |
drm/amd/display: Correct dram channel width for dcn314
[Why]
The interpretation of the number of memory channels
differ by memory type, and this affects channel width
for the DML input.
[How]
Set dram channel width according to memory type for
dcn314.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c index 171c38fac6a3..cd86aa912e3c 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c @@ -677,6 +677,8 @@ static void dcn314_clk_mgr_helper_populate_bw_params(struct clk_mgr_internal *cl } ASSERT(bw_params->clk_table.entries[i-1].dcfclk_mhz); bw_params->vram_type = bios_info->memory_type; + + bw_params->dram_channel_width_bytes = bios_info->memory_type == 0x22 ? 8 : 4; bw_params->num_channels = bios_info->ma_channel_number ? bios_info->ma_channel_number : 4; for (i = 0; i < WM_SET_COUNT; i++) { |