From: Roman Li <[email protected]>

Fixing regression introduced by
'Use real BE and FE index to program regs.'

Signed-off-by: Roman Li <[email protected]>
Reviewed-by: Tony Cheng <[email protected]>
Acked-by: Harry Wentland <[email protected]>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c           | 3 ++-
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c 
b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index ba88284d305a..a215c5b74cbd 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1407,7 +1407,8 @@ static int acquire_first_free_pipe(
                        pipe_ctx->plane_res.xfm = pool->transforms[i];
                        pipe_ctx->plane_res.dpp = pool->dpps[i];
                        pipe_ctx->stream_res.opp = pool->opps[i];
-                       pipe_ctx->plane_res.mpcc_inst = pool->dpps[i]->inst;
+                       if (pool->dpps[i])
+                               pipe_ctx->plane_res.mpcc_inst = 
pool->dpps[i]->inst;
                        pipe_ctx->pipe_idx = i;
 
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c 
b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 58823bafdbe6..d036d1da03e3 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2819,7 +2819,8 @@ static void dce110_apply_ctx_for_surface(
 
 static void dce110_power_down_fe(struct dc *dc, struct pipe_ctx *pipe_ctx)
 {
-       int fe_idx = pipe_ctx->plane_res.mi->inst;
+       int fe_idx = pipe_ctx->plane_res.mi ?
+               pipe_ctx->plane_res.mi->inst : pipe_ctx->pipe_idx;
 
        /* Do not power down fe when stream is active on dce*/
        if (dc->current_state->res_ctx.pipe_ctx[fe_idx].stream)
-- 
2.14.1

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