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drm/amd/display: Send DTBCLK disable message on first commit

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[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: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Taimur Hassan <syed.hassan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Taimur Hassan
2024-01-16 18:10:54 -05:00
committed by Alex Deucher
parent 5549c37e3c
commit f341055b10
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
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@@ -415,6 +415,7 @@ void dcn35_init_clocks(struct clk_mgr *clk_mgr)
memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks)); memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
// Assumption is that boot state always supports pstate // 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.ref_dtbclk_khz = ref_dtbclk; // restore ref_dtbclk
clk_mgr->clks.p_state_change_support = true; clk_mgr->clks.p_state_change_support = true;
clk_mgr->clks.prev_p_state_change_support = true; clk_mgr->clks.prev_p_state_change_support = true;