diff options
| author |   Logatharshan Thothiralingam <logatharshan.thothiralingam@amd.com> | 2017-03-09 11:37:26 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 17:19:49 -0400 |
| commit | 1de8c33bbde4115561a5b2e684be7af66b3f085d (patch) | |
| tree | 58bef73b280bea1085e8d1c79d65652617e187c0 /drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | |
| parent | drm/amd/display: adding new dc_update_surfaces_and_stream (diff) | |
| download | linux-dev-1de8c33bbde4115561a5b2e684be7af66b3f085d.tar.xz linux-dev-1de8c33bbde4115561a5b2e684be7af66b3f085d.zip | |
drm/amd/display: Fixed bandwidth calculation error when converting fractions
[Problem]
VSR greyed out
[Root cause]
When converting fractions, we were using the integer function, which let to
a large display clock and the view was not supported
[Solution]
Change the integer to fraction functions
Signed-off-by: Logatharshan Thothiralingam <logatharshan.thothiralingam@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c index c855e49eb116..e47794398942 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c @@ -796,11 +796,11 @@ static void calculate_bandwidth( } else if (bw_leq(data->vsr[i], bw_int_to_fixed(1))) { data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_int_to_fixed(1); - } - else if (bw_leq(data->vsr[i], bw_int_to_fixed(4 / 3))) { + } else if (bw_leq(data->vsr[i], + bw_frc_to_fixed(4, 3))) { data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_div(bw_int_to_fixed(4), bw_int_to_fixed(3)); - } - else if (bw_leq(data->vsr[i], bw_int_to_fixed(6 / 4))) { + } else if (bw_leq(data->vsr[i], + bw_frc_to_fixed(6, 4))) { data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_div(bw_int_to_fixed(6), bw_int_to_fixed(4)); } else if (bw_leq(data->vsr[i], bw_int_to_fixed(2))) { |