Commit cafea772 authored by Lewis Huang's avatar Lewis Huang Committed by Alex Deucher
Browse files

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: default avatarAnthony Koo <Anthony.Koo@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Acked-by: default avatarAgustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: default avatarLewis Huang <Lewis.Huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9fac5799

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

+6 −0
Original line number Diff line number Diff line
@@ -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);