From: Chris Park <Chris.Park@amd.com>
Date: Thu, 6 Jan 2022 04:39:56 +0000 (-0500)
Subject: drm/amd/display: DCEFCLK DS on CLK init
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6421c49567d55b1ba8d9389e5832297398a51a1c;p=linux.git

drm/amd/display: DCEFCLK DS on CLK init

[Why]
On HG APU + dGPU scenario with no display to dGPU,
DS stays disabled due to no display present.
This problem can be worked around by DAL calling
DCEFCLK DS message to SMU on clk init.

[How]
Call DCEFCLK DS message to SMU on clk init.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Chris Park <Chris.Park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
index f977f29907df5..0602bde78e6ca 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
@@ -184,6 +184,7 @@ void dcn3_init_clocks(struct clk_mgr *clk_mgr_base)
 	dcn3_init_single_clock(clk_mgr, PPCLK_DCEFCLK,
 			&clk_mgr_base->bw_params->clk_table.entries[0].dcfclk_mhz,
 			&num_levels);
+	dcn30_smu_set_min_deep_sleep_dcef_clk(clk_mgr, 0);
 
 	/* DTBCLK */
 	dcn3_init_single_clock(clk_mgr, PPCLK_DTBCLK,