Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: DCN35 set min dispclk to 50Mhz

Browse Source 
[Why]

Causes hard hangs when resuming after display off on extended/duplicate
modes

[How]

Set the min dispclk to 50Mhz for DCN35

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Nicholas Susanto <Nicholas.Susanto@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Susanto 2024-08-15 18:45:21 -04:00 committed by Alex Deucher
parent ec9e2e7acc
commit 2344413205
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
View File

@ -305,6 +305,9 @@ void dcn35_update_clocks(struct clk_mgr *clk_mgr_base,
if (new_clocks->dtbclk_en && !new_clocks->ref_dtbclk_khz)
new_clocks->ref_dtbclk_khz = 600000;
if (dc->debug.min_disp_clk_khz > 0 && new_clocks->dispclk_khz < dc->debug.min_disp_clk_khz)
new_clocks->dispclk_khz = dc->debug.min_disp_clk_khz;
/*
* if it is safe to lower, but we are already in the lower state, we don't have to do anything
* also if safe to lower is false, we just go in the higher state

1
drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
View File

@ -786,6 +786,7 @@ static const struct dc_debug_options debug_defaults_drv = {
.disable_dmub_reallow_idle = false,
.static_screen_wait_frames = 2,
.disable_timeout = true,
.min_disp_clk_khz = 50000,
};
static const struct dc_panel_config panel_config_defaults = {