diff options
| author | Roman Li <Roman.Li@amd.com> | 2018-11-27 17:16:37 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 14:15:14 +0100 |
| commit | 3965b4f0c37f4bd92304c9cde538f02cd509ac2c (patch) | |
| tree | b8fa92f82e1a7e567f4b82a33cf94b9d41ee0bd2 /drivers | |
| parent | bdf7c4c84bea8be6403bf448a9da72f3cc8313ed (diff) | |
| download | talos-obmc-linux-3965b4f0c37f4bd92304c9cde538f02cd509ac2c.tar.gz talos-obmc-linux-3965b4f0c37f4bd92304c9cde538f02cd509ac2c.zip | |
drm/amd/display: Fix 6x4K displays light-up on Vega20 (v2)
[ Upstream commit c6888879fd55b1ba903c2a770127edbf6aef6f27 ]
[Why]
More than 4x4K didn't lightup on Vega20 due to low dcfclk value.
Powerplay expects valid min requirement for dcfclk from DC.
[How]
Update min_dcfclock_khz based on min_engine_clock value.
v2: backport to 4.20 (Alex)
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index b2f308766a9e..0941f3c689bc 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -2530,6 +2530,8 @@ static void pplib_apply_display_requirements( dc, context->bw.dce.sclk_khz); + pp_display_cfg->min_dcfclock_khz = pp_display_cfg->min_engine_clock_khz; + pp_display_cfg->min_engine_clock_deep_sleep_khz = context->bw.dce.sclk_deep_sleep_khz; |
