From 7cd69b95a84bc9226d10042f3216fa3e78d060f8 Mon Sep 17 00:00:00 2001 From: Anthony Wang Date: Mon, 5 Apr 2021 17:13:58 -0400 Subject: [PATCH] drm/amd/display: Add DSC check to seamless boot validation [Why & How] We want to immediately fail seamless boot validation if DSC is active, as VBIOS currently does not support DSC timings. Add a check for the relevant flag in dc_validate_seamless_boot_timing. Signed-off-by: Anthony Wang Reviewed-by: Martin Leung Acked-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 757820a3f068..724ddce8aa41 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1400,6 +1400,10 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc, if (crtc_timing->v_sync_width != hw_crtc_timing.v_sync_width) return false; + /* block DSC for now, as VBIOS does not currently support DSC timings */ + if (crtc_timing->flags.DSC) + return false; + if (dc_is_dp_signal(link->connector_signal)) { unsigned int pix_clk_100hz;