[PATCH 01/18] drm/amd/display: Reinit DPG when exiting dynamic ODM

[Alex Hung]

From: Dillon Varone <dillon.var...@amd.com>

[WHY]
DPG must be returned to initialized state when pipe is disabled.

[HOW]
Reinit DPG on unused pipes when exiting dynamic ODM.

Reviewed-by: Alvin Lee <alvin.l...@amd.com>
Acked-by: Alex Hung <alex.h...@amd.com>
Signed-off-by: Dillon Varone <dillon.var...@amd.com>
---
 .../drm/amd/display/dc/dcn20/dcn20_hwseq.c    | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c 
b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index feff834d5410..b465a83bde6f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1079,6 +1079,29 @@ void dcn20_blank_pixel_data(
                                0);
        }
 
+       if (!blank && dc->debug.enable_single_display_2to1_odm_policy) {
+               /* when exiting dynamic ODM need to reinit DPG state for unused 
pipes */
+               struct pipe_ctx *old_odm_pipe = 
dc->current_state->res_ctx.pipe_ctx[pipe_ctx->pipe_idx].next_odm_pipe;
+
+               odm_pipe = pipe_ctx->next_odm_pipe;
+
+               while (old_odm_pipe) {
+                       if (!odm_pipe || old_odm_pipe->pipe_idx != 
odm_pipe->pipe_idx)
+                               dc->hwss.set_disp_pattern_generator(dc,
+                                               old_odm_pipe,
+                                               
CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
+                                               
CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+                                               COLOR_DEPTH_888,
+                                               NULL,
+                                               0,
+                                               0,
+                                               0);
+                       old_odm_pipe = old_odm_pipe->next_odm_pipe;
+                       if (odm_pipe)
+                               odm_pipe = odm_pipe->next_odm_pipe;
+               }
+       }
+
        if (!blank)
                if (stream_res->abm) {
                        dc->hwss.set_pipe(pipe_ctx);
-- 
2.38.1