[PATCH v1] drm/i915/display: Allow port sync on PTL

[Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>]

Some dual-SST tiled displays exhibit visual corruption on PTL, with
one tile's image vertically shifted or wrapped by a random amount
that changes on every hotplug.

PTL supports port sync, so allow it to be used to avoid these
display issues.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/8991
Fixes: 05cffc074938 ("drm/i915/display: Implement Wa_16024710867")
Cc: stable@vger.kernel.org
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index a46ab5d3d70f..a0aff087fafa 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4629,7 +4629,7 @@ intel_ddi_port_sync_transcoders(const struct intel_crtc_state *ref_crtc_state,
 	 * From, xe3lpd onwards we have defeatured this with reference to
 	 * Wa_16024710867
 	 */
-	if (!IS_DISPLAY_VER(display, 9, 20))
+	if (!IS_DISPLAY_VER(display, 9, 30))
 		return 0;
 
 	if (!intel_crtc_has_type(ref_crtc_state, INTEL_OUTPUT_DP))
-- 
2.48.1