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authorNicholas Kazlauskas <nicholas.kazlauskas@amd.com>2021-12-09 21:53:36 +0300
committerAlex Deucher <alexander.deucher@amd.com>2021-12-29 00:51:24 +0300
commita07f8b9983543d465b50870ab4f845d4d710ed3f (patch)
treedc939d682f0e7eb4f429d2268a58d00b81be6ca0 /drivers/gpu
parentd97e631af2db84c8c9d63abf68d487d0bb559e4c (diff)
downloadlinux-a07f8b9983543d465b50870ab4f845d4d710ed3f.tar.xz
drm/amd/display: Send s0i2_rdy in stream_count == 0 optimization
[Why] Otherwise SMU won't mark Display as idle when trying to perform s2idle. [How] Mark the bit in the dcn31 codepath, doesn't apply to older ASIC. It needed to be split from phy refclk off to prevent entering s2idle when PSR was engaged but driver was not ready. Fixes: 118a33151658 ("drm/amd/display: Add DCN3.1 clock manager support") Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Eric Yang <Eric.Yang2@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index f4c9a458ace8..9df38e2ee4f4 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -158,6 +158,7 @@ static void dcn31_update_clocks(struct clk_mgr *clk_mgr_base,
union display_idle_optimization_u idle_info = { 0 };
idle_info.idle_info.df_request_disabled = 1;
idle_info.idle_info.phy_ref_clk_off = 1;
+ idle_info.idle_info.s0i2_rdy = 1;
dcn31_smu_set_display_idle_optimization(clk_mgr, idle_info.data);
/* update power state */
clk_mgr_base->clks.pwr_state = DCN_PWR_STATE_LOW_POWER;