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drm/amd/display: Align bw context with hw config when system resume

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[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>
This commit is contained in:
Lewis Huang
2021-09-29 16:32:15 +08:00
committed by Alex Deucher
parent 9fac5799c8
commit cafea7728c
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
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@@ -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);