diff options
| author | Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> | 2019-11-08 16:20:36 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-05 16:29:45 -0500 |
| commit | 084e1de7b938a00608b36a032c59bf987ff91667 (patch) | |
| tree | f436e7e3770190a2e17f0a1ea73420300eb4a75f /drivers/gpu/drm/amd/display/dc/dml/dcn20 | |
| parent | 1ba2a48305715f5832fac023ddc0d4ceba7a8491 (diff) | |
| download | linux-084e1de7b938a00608b36a032c59bf987ff91667.tar.bz2 | |
drm/amd/display: fix dml20 min_dst_y_next_start calculation
Bring this calculation in line with HW programming guide.
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dcn20')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c index 2c7455e22a65..9df24ececcec 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c @@ -929,8 +929,7 @@ static void dml20_rq_dlg_get_dlg_params(struct display_mode_lib *mode_lib, min_dst_y_ttu_vblank = min_ttu_vblank * pclk_freq_in_mhz / (double) htotal; dlg_vblank_start = interlaced ? (vblank_start / 2) : vblank_start; - disp_dlg_regs->min_dst_y_next_start = (unsigned int) (((double) dlg_vblank_start - + min_dst_y_ttu_vblank) * dml_pow(2, 2)); + disp_dlg_regs->min_dst_y_next_start = (unsigned int) ((double) dlg_vblank_start * dml_pow(2, 2)); ASSERT(disp_dlg_regs->min_dst_y_next_start < (unsigned int) dml_pow(2, 18)); dml_print("DML_DLG: %s: min_dcfclk_mhz = %3.2f\n", |