diff options
| author | Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> | 2022-06-10 17:44:41 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-05 16:14:03 -0400 |
| commit | 8a077d9caa3a274de36ee2fe7b608041f5690343 (patch) | |
| tree | 251653429f4b16b27f52f7aa8ba3e7f8e1e8fbf4 | |
| parent | 22676bc500c27d987a0b42cbe162aebf783f1c38 (diff) | |
drm/amd/display: disable otg toggle w/a on boot
This w/a has a bad interaction with seamless boot toggling an
active stream. Most panels recover, however some fail leading
to display corruption.
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c index f4381725b2107..36b0cd47c1c74 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c @@ -173,11 +173,14 @@ static void dcn315_update_clocks(struct clk_mgr *clk_mgr_base, } if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) { - dcn315_disable_otg_wa(clk_mgr_base, true); + /* No need to apply the w/a if we haven't taken over from bios yet */ + if (clk_mgr_base->clks.dispclk_khz) + dcn315_disable_otg_wa(clk_mgr_base, true); clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz; dcn315_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz); - dcn315_disable_otg_wa(clk_mgr_base, false); + if (clk_mgr_base->clks.dispclk_khz) + dcn315_disable_otg_wa(clk_mgr_base, false); update_dispclk = true; } |