[PATCH 20/21] drm/amd/display: Remove the check to see if pp_display_cfg is changed

[sunpeng.li at amd.com]

From: Fatemeh Darbehani <fatemeh.darbehani at amd.com>

[Why]
When going to full-screen mode commit_planes_for_stream tries to decrease
dcf_deep_sleep value, but safe_to_lower is false, so we don't send the new value
to SMU but dc context gets updated.
Later when dc_post_update_surfaces_to_stream tries to lower dcf_ds when
safe_to_lower is true, this check prevents the message from being sent.

[How]
Remove the check that compares new value with what is stored in dc_context.
This check is not necessary as dcn1_update_clocks already checks if the value
is different from the current dcf_dp value.

Signed-off-by: Fatemeh Darbehani <fatemeh.darbehani at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Leo Li <sunpeng.li at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c
index 98a1e2c..20f531d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c
@@ -57,8 +57,7 @@ void dcn1_pplib_apply_display_requirements(
 	pp_display_cfg->disp_clk_khz = dc->res_pool->clk_mgr->clks.dispclk_khz;
 	dce110_fill_display_configs(context, pp_display_cfg);
 
-	if (memcmp(&dc->current_state->pp_display_cfg, pp_display_cfg, sizeof(*pp_display_cfg)) !=  0)
-		dm_pp_apply_display_requirements(dc->ctx, pp_display_cfg);
+	dm_pp_apply_display_requirements(dc->ctx, pp_display_cfg);
 }
 
 static int dcn1_determine_dppclk_threshold(struct clk_mgr *clk_mgr, struct dc_clocks *new_clocks)
-- 
2.7.4