diff options
| author | Lewis Huang <Lewis.Huang@amd.com> | 2021-09-29 11:32:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-28 21:26:13 +0300 |
| commit | cafea7728ca66a16dc45724b8bc13da89f703ee4 (patch) | |
| tree | 805a045451c5a04d2425ba4af0e9ef7d46e7dd4d /drivers | |
| parent | 9fac5799c8985aa0263dbed7f16f99f85c4d6cd7 (diff) | |
| download | linux-cafea7728ca66a16dc45724b8bc13da89f703ee4.tar.xz | |
drm/amd/display: Align bw context with hw config when system resume
[Why]
When the vbios config and driver config are different, if we update
clock to lower before call program_timing and program_pixel_clk, garbage
appear.
[How]
Align bw context with hw config when system resume
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 44d27579d898..a25732d07222 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -1378,6 +1378,12 @@ void dcn10_init_hw(struct dc *dc) if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks) dc->clk_mgr->funcs->init_clocks(dc->clk_mgr); + /* Align bw context with hw config when system resume. */ + if (dc->clk_mgr->clks.dispclk_khz != 0 && dc->clk_mgr->clks.dppclk_khz != 0) { + dc->current_state->bw_ctx.bw.dcn.clk.dispclk_khz = dc->clk_mgr->clks.dispclk_khz; + dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz = dc->clk_mgr->clks.dppclk_khz; + } + // Initialize the dccg if (dc->res_pool->dccg && dc->res_pool->dccg->funcs->dccg_init) dc->res_pool->dccg->funcs->dccg_init(res_pool->dccg); |