diff options
| author | Tony Cheng <tony.cheng@amd.com> | 2017-09-26 10:16:34 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-21 16:43:47 -0400 |
| commit | 9f945eab797b042930553388d37c12fed38f3396 (patch) | |
| tree | 155123942ee8891de98308b4a0db1342c3d2c326 | |
| parent | 966869d07aae2d1becfcb16b55cafd4aae3c6627 (diff) | |
drm/amd/display: fix bug in force_single_disp_pipe_split
should only lower dpp clock.
Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c index aa56243f2522..cf474eb1cde8 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c @@ -732,11 +732,14 @@ void hack_disable_optional_pipe_split(struct dcn_bw_internal_vars *v) void hack_force_pipe_split(struct dcn_bw_internal_vars *v, unsigned int pixel_rate_khz) { + float pixel_rate_mhz = pixel_rate_khz / 1000; + /* * force enabling pipe split by lower dpp clock for DPM0 to just * below the specify pixel_rate, so bw calc would split pipe. */ - v->max_dppclk[0] = pixel_rate_khz / 1000; + if (pixel_rate_mhz < v->max_dppclk[0]) + v->max_dppclk[0] = pixel_rate_mhz; } void hack_bounding_box(struct dcn_bw_internal_vars *v, |