From 002f32db0d4292f117994c330928d2374887b28e Mon Sep 17 00:00:00 2001 From: Charlene Liu Date: Wed, 11 Feb 2026 16:53:44 -0500 Subject: [PATCH] drm/amd/display: Fix dcn401_optimize_bandwidth [Why&How] We should check for != zstate disallow and programming extend blank from a different struct. Reviewed-by: Leo Chen Reviewed-by: Dmytro Laktyushkin Signed-off-by: Charlene Liu Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c index f604c30e8493..95d9e17a269b 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c @@ -1483,7 +1483,7 @@ void dcn401_optimize_bandwidth( dc->clk_mgr, context, true); - if (context->bw_ctx.bw.dcn.clk.zstate_support == DCN_ZSTATE_SUPPORT_ALLOW) { + if (context->bw_ctx.bw.dcn.clk.zstate_support != DCN_ZSTATE_SUPPORT_DISALLOW) { for (i = 0; i < dc->res_pool->pipe_count; ++i) { struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; @@ -1491,7 +1491,7 @@ void dcn401_optimize_bandwidth( && pipe_ctx->stream->adjust.v_total_min == pipe_ctx->stream->adjust.v_total_max && pipe_ctx->stream->adjust.v_total_max > pipe_ctx->stream->timing.v_total) pipe_ctx->plane_res.hubp->funcs->program_extended_blank(pipe_ctx->plane_res.hubp, - pipe_ctx->dlg_regs.min_dst_y_next_start); + pipe_ctx->hubp_regs.dlg_regs.min_dst_y_next_start); } } }