[PATCH 02/19] drm/amd/display: Add DSC check to seamless boot validation

[Aurabindo Pillai]

From: Anthony Wang <anthony1.wang at amd.com>

[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 <anthony1.wang at amd.com>
Reviewed-by: Martin Leung <Martin.Leung at amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
---
 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;
 
-- 
2.31.1