drm/amdgpu/display: check if fbc is available in set_static_screen_control (v2)

alexdeucher · alexdeucher · commit 689e7b34234e · 2018-11-06T16:45:08.000-05:00
The value is dependent on whether fbc is available.

v2: only check if num_pipes is valid

Reviewed-by: Harry Wentland &lt;harry.wentland@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
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
@@ -1736,7 +1736,12 @@ static void set_static_screen_control(struct pipe_ctx **pipe_ctx,
 	if (events->force_trigger)
 		value |= 0x1;
 
-	value |= 0x84;
+	if (num_pipes) {
+		struct dc *dc = pipe_ctx[0]->stream->ctx->dc;
+
+		if (dc->fbc_compressor)
+			value |= 0x84;
+	}
 
 	for (i = 0; i < num_pipes; i++)
 		pipe_ctx[i]->stream_res.tg->funcs->
