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From: Arun R Murthy <arun.r.murthy@intel.com>
To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
	imre.deak@intel.com,  Arun R Murthy <arun.r.murthy@intel.com>
Subject: [PATCH v4 1/2] drm/i915/display/dp: Remove support for UHBR13.5 on display14
Date: Wed, 02 Apr 2025 16:16:38 +0530	[thread overview]
Message-ID: <20250402-dprates-v4-1-752535b2068a@intel.com> (raw)
In-Reply-To: <20250402-dprates-v4-0-752535b2068a@intel.com>

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@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


  reply	other threads:[~2025-04-02 11:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-02 10:46 [PATCH v4 0/2] Remove UHBR13.5 for ICL, DG2 Arun R Murthy
2025-04-02 10:46 ` Arun R Murthy [this message]
2025-04-03 11:51   ` [PATCH v4 1/2] drm/i915/display/dp: Remove support for UHBR13.5 on display14 Jani Nikula
2025-04-14  6:39   ` Kandpal, Suraj
2025-04-02 10:46 ` [PATCH v4 2/2] drm/i915/display/dp: Remove the uhbr13.5 pll state values Arun R Murthy
2025-04-02 11:37 ` ✗ Fi.CI.SPARSE: warning for Remove UHBR13.5 for ICL, DG2 (rev2) Patchwork
2025-04-02 12:00 ` ✓ i915.CI.BAT: success " Patchwork
2025-04-02 13:26 ` ✗ i915.CI.Full: failure " Patchwork

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