[Intel-gfx] [PATCH v3 39/48] drm/i915/bigjoiner: Mode validation with uncompressed pipe joiner

[Matt Roper]

From: Animesh Manna <animesh.manna at intel.com>

No need for checking dsc flag for uncompressed pipe joiner mode
validation.

Cc: Manasi Navare <manasi.d.navare at intel.com>
Signed-off-by: Animesh Manna <animesh.manna at intel.com>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor at intel.com>
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b9b8a0b9889a..92d4c5ab32d7 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -819,8 +819,11 @@ intel_dp_mode_valid(struct drm_connector *connector,
 		dsc = dsc_max_output_bpp && dsc_slice_count;
 	}
 
-	/* big joiner configuration needs DSC */
-	if (bigjoiner && !dsc)
+	/*
+	 * Big joiner configuration needs DSC for TGL which is not true for
+	 * XE_LPD where uncompressed joiner is supported.
+	 */
+	if (DISPLAY_VER(dev_priv) < 13 && bigjoiner && !dsc)
 		return MODE_CLOCK_HIGH;
 
 	if (mode_rate > max_rate && !dsc)
-- 
2.25.4