diff options
| author |   Eric Yang <Eric.Yang2@amd.com> | 2019-09-06 18:26:23 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-10-10 19:33:07 -0500 |
| commit | ab4a4072f260162284c15789329522a6773023ed (patch) | |
| tree | be4c1538300bdb74d9a8f9c9c71e2b7fd9cdb4a2 /drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | |
| parent | drm/amd/display: Program DWB watermarks from correct state (diff) | |
| download | linux-dev-ab4a4072f260162284c15789329522a6773023ed.tar.xz linux-dev-ab4a4072f260162284c15789329522a6773023ed.zip | |
drm/amd/display: exit PSR during detection
[Why]
If 48mhz refclk is turned off during PSR, we will have issue doing
link training during detection.
[How]
Get out of PSR before detection
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c index c43797bea413..8828dd9c3783 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c @@ -65,6 +65,31 @@ int clk_mgr_helper_get_active_display_cnt( return display_count; } +void clk_mgr_exit_optimized_pwr_state(const struct dc *dc, struct clk_mgr *clk_mgr) +{ + struct dc_link *edp_link = get_edp_link(dc); + + if (dc->hwss.exit_optimized_pwr_state) + dc->hwss.exit_optimized_pwr_state(dc, dc->current_state); + + if (edp_link) { + clk_mgr->psr_allow_active_cache = edp_link->psr_allow_active; + dc_link_set_psr_allow_active(edp_link, false, false); + } + +} + +void clk_mgr_optimize_pwr_state(const struct dc *dc, struct clk_mgr *clk_mgr) +{ + struct dc_link *edp_link = get_edp_link(dc); + + if (edp_link) + dc_link_set_psr_allow_active(edp_link, clk_mgr->psr_allow_active_cache, false); + + if (dc->hwss.optimize_pwr_state) + dc->hwss.optimize_pwr_state(dc, dc->current_state); + +} struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *pp_smu, struct dccg *dccg) { |