Commit 58330ef1 authored by Alvin Lee's avatar Alvin Lee Committed by Alex Deucher
Browse files

drm/amd/display: Request min clocks after disabling pipes on init 



[Description]
- Request min clocks after disabling pipes on init
- This optimizes for power savings during init sequence
- Also handles the case where we boot up with no display connected

Tested-by: default avatarDaniel Wheeler <Daniel.Wheeler@amd.com>
Reviewed-by: default avatarJun Lei <Jun.Lei@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9190d4a2

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

+21 −0
Original line number Diff line number Diff line
@@ -685,6 +685,25 @@ void dcn32_program_mall_pipe_config(struct dc *dc, struct dc_state *context) 
	}

}



static void dcn32_initialize_min_clocks(struct dc *dc)

{

	struct dc_clocks *clocks = &dc->current_state->bw_ctx.bw.dcn.clk;



	clocks->dcfclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dcfclk_mhz * 1000;

	clocks->socclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].socclk_mhz * 1000;

	clocks->dramclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].memclk_mhz * 1000;

	clocks->dppclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dppclk_mhz * 1000;

	clocks->dispclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dispclk_mhz * 1000;

	clocks->ref_dtbclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dtbclk_mhz * 1000;

	clocks->fclk_p_state_change_support = true;

	clocks->p_state_change_support = true;



	dc->clk_mgr->funcs->update_clocks(

			dc->clk_mgr,

			dc->current_state,

			true);

}



void dcn32_init_hw(struct dc *dc)

{

	struct abm **abms = dc->res_pool->multiple_abms;
@@ -779,6 +798,8 @@ void dcn32_init_hw(struct dc *dc) 
		if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)

			dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,

					!dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);



		dcn32_initialize_min_clocks(dc);

	}



	/* In headless boot cases, DIG may be turned