diff options
| author | Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> | 2018-07-26 12:17:58 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-06 15:57:12 -0500 |
| commit | 99326ee3624b90d176a8f7e2aa3d15dfaa59c8f1 (patch) | |
| tree | 196c5a5e9f74507695ae88e441e9546d56ae61b7 /drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | |
| parent | fb7b11e1633e50b9a6b3fffe5cd151474aee9802 (diff) | |
drm/amd/display: program display clock on cache match
[Why]
We seem to have an issue where high enough display clock
will not get set properly during S3 resume if we only
call vbios once
[How]
Expand condition of display clock programming to happen
even when cached display clock matches requested display
clock
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c index f17677971d0f..684da3db7568 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c @@ -625,7 +625,9 @@ static void dcn1_update_clocks(struct dccg *dccg, } /* dcn1 dppclk is tied to dispclk */ - if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, dccg->clks.dispclk_khz)) { + /* program dispclk on = as a w/a for sleep resume clock ramping issues */ + if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, dccg->clks.dispclk_khz) + || new_clocks->dispclk_khz == dccg->clks.dispclk_khz) { dcn1_ramp_up_dispclk_with_dpp(dccg, new_clocks); dccg->clks.dispclk_khz = new_clocks->dispclk_khz; |