From: Noah Abradjian <[email protected]>

[Why]
I was advised that we may need to check for mpcc idle in more cases
than just when opp_changed is true. Also, mpcc_inst is equal to
pipe_idx, so remove for loop.

[How]
Remove opp_changed flag check and mpcc_inst loop.

Signed-off-by: Noah Abradjian <[email protected]>
Reviewed-by: Dmytro Laktyushkin <[email protected]>
Acked-by: Leo Li <[email protected]>
---
 .../gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

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 fb23142cf535..2d093ff0a76c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1330,16 +1330,16 @@ static void dcn20_update_dchubp_dpp(
        if (pipe_ctx->update_flags.bits.mpcc
                        || plane_state->update_flags.bits.global_alpha_change
                        || 
plane_state->update_flags.bits.per_pixel_alpha_change) {
-               /* Need mpcc to be idle if changing opp */
-               if (pipe_ctx->update_flags.bits.opp_changed) {
-                       struct pipe_ctx *old_pipe_ctx = 
&dc->current_state->res_ctx.pipe_ctx[pipe_ctx->pipe_idx];
-                       int mpcc_inst;
-
-                       for (mpcc_inst = 0; mpcc_inst < MAX_PIPES; mpcc_inst++) 
{
-                               if 
(!old_pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst])
-                                       continue;
+               // MPCC inst is equal to pipe index in practice
+               int mpcc_inst = pipe_ctx->pipe_idx;
+               int opp_inst;
+               int opp_count = dc->res_pool->res_cap->num_opp;
+
+               for (opp_inst = 0; opp_inst < opp_count; opp_inst++) {
+                       if 
(dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst]) {
                                
dc->res_pool->mpc->funcs->wait_for_idle(dc->res_pool->mpc, mpcc_inst);
-                               
old_pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false;
+                               
dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst] = false;
+                               break;
                        }
                }
                hws->funcs.update_mpcc(dc, pipe_ctx);
-- 
2.24.0

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