324707fdf8
[Why] We want a test pattern to show up on screen when we're blanked and have visual confirm enabled, for debugging. Raven does this, it's a mistake that Navi does not. [How] - in "blank_pixel_data", set appropriate DPG pattern for visual confirm - refactor DPG calls out of "enable_stream_timing" Signed-off-by: Joshua Aberback <joshua.aberback@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>