[PATCH v4 1/2] drm/i915/display/dp: Remove support for UHBR13.5 on display14

Arun R Murthy arun.r.murthy at intel.com
Wed Apr 2 10:46:38 UTC 2025


Support for UHBR 13.5 has been removed for mtl by the
commit caf3d748f646 ("drm/i915/dp: Remove support for UHBR13.5")
Removing UHBR13.5 on all display14- platforms due to the same
retimer constraint.

v2: Reframed the commit msg (Jani)
v4: Reframed the commit msg & update the max rate supported (Jani)

Signed-off-by: Arun R Murthy <arun.r.murthy at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index f21f9b441fc2a4e644c69410e6ec6b3d37907478..92bca701a989b03e2ad4b3d9e7d0a9ef12567e5a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -481,7 +481,7 @@ bool intel_dp_has_joiner(struct intel_dp *intel_dp)
 
 static int dg2_max_source_rate(struct intel_dp *intel_dp)
 {
-	return intel_dp_is_edp(intel_dp) ? 810000 : 1350000;
+	return intel_dp_is_edp(intel_dp) ? 810000 : 1000000;
 }
 
 static int icl_max_source_rate(struct intel_dp *intel_dp)
@@ -550,7 +550,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
 	};
 	static const int icl_rates[] = {
 		162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000,
-		1000000, 1350000,
+		1000000,
 	};
 	static const int bxt_rates[] = {
 		162000, 216000, 243000, 270000, 324000, 432000, 540000

-- 
2.25.1



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