From: Roman Li <Roman.Li@amd.com>
Date: Thu, 7 Sep 2017 17:02:47 -0400
Subject: drm/amd/display: Add FBC on/off to front-end programming
Git-commit: e008b0bcc63793d3e42fd88f412a90f329a05865
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

- Fixing text mode for cases when VT-switch doesn't result
in timing change

Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2554,6 +2554,15 @@ static void dce110_program_front_end_for
 
 	program_scaler(dc, pipe_ctx);
 
+#ifdef ENABLE_FBC
+	if (dc->fbc_compressor && old_pipe->stream) {
+		if (plane_state->tiling_info.gfx8.array_mode == DC_ARRAY_LINEAR_GENERAL)
+			dc->fbc_compressor->funcs->disable_fbc(dc->fbc_compressor);
+		else
+			enable_fbc(dc, dc->current_state);
+	}
+#endif
+
 	mi->funcs->mem_input_program_surface_config(
 			mi,
 			plane_state->format,