Commit f341055b authored by Taimur Hassan's avatar Taimur Hassan Committed by Alex Deucher
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drm/amd/display: Send DTBCLK disable message on first commit 



[Why]
Previous patch to allow DTBCLK disable didn't address boot case. Driver
thinks DTBCLK is disabled by default, so we don't send disable message to
PMFW. DTBCLK is then enabled at idle desktop on boot, burning power.

[How]
Set dtbclk_en to true on boot so that disable message is sent during first
commit.

Reviewed-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: default avatarTom Chung <chiahsuan.chung@amd.com>
Signed-off-by: default avatarTaimur Hassan <syed.hassan@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5549c37e

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c

+1 −0
Original line number Diff line number Diff line
@@ -415,6 +415,7 @@ void dcn35_init_clocks(struct clk_mgr *clk_mgr) 
	memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));



	// Assumption is that boot state always supports pstate

	clk_mgr->clks.dtbclk_en = true;

	clk_mgr->clks.ref_dtbclk_khz = ref_dtbclk;	// restore ref_dtbclk

	clk_mgr->clks.p_state_change_support = true;

	clk_mgr->clks.prev_p_state_change_support = true;