From: Suraj Kandpal <suraj.kandpal@intel.com>
To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: ankit.k.nautiyal@intel.com, arun.r.murthy@intel.com,
Suraj Kandpal <suraj.kandpal@intel.com>
Subject: [PATCH v3 10/10] drm/i915/dp: Bump the max Link M/N ratio to 22 for DISPLAY_VER >= 35
Date: Wed, 16 Sep 2026 14:39:46 +0530 [thread overview]
Message-ID: <20260916090946.677564-11-suraj.kandpal@intel.com> (raw)
In-Reply-To: <20260916090946.677564-1-suraj.kandpal@intel.com>
Starting Xe3p max M/N ratio has been increased to 22.
Bspec: 68922
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 04a492a0b369..2610c33565a6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1269,6 +1269,9 @@ bool intel_dp_has_dsc(const struct intel_connector *connector)
static int
intel_dp_get_max_m_n_ratio(struct intel_display *display)
{
+ if (DISPLAY_VER(display) >= 35)
+ return 22;
+
if (display->platform.dg2)
return 4;
--
2.34.1
next prev parent reply other threads:[~2026-09-16 9:10 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 9:09 [PATCH v3 00/10] Implement Wa_14021768792 to bypass m_n ratio limit Suraj Kandpal
2026-09-16 9:09 ` [PATCH v3 01/10] drm/i915/display: Add helper to compute link M/N ratio for reuse Suraj Kandpal
2026-09-16 9:09 ` [PATCH v3 02/10] drm/i915/dp: Limit M/N ratio for DP SST Suraj Kandpal
2026-09-16 9:25 ` sashiko-bot
2026-09-16 9:33 ` Kandpal, Suraj
2026-09-16 9:09 ` [PATCH v3 03/10] drm/i915/dp_mst: Limit M/N ratio for MST Suraj Kandpal
2026-09-16 9:09 ` [PATCH v3 04/10] drm/i915/dp: Add M/N ratio check with warning for DP link config Suraj Kandpal
2026-09-16 9:23 ` sashiko-bot
2026-09-16 9:09 ` [PATCH v3 05/10] drm/i915/display: Add bits for link_n_extended for DISPLAY >= 14 Suraj Kandpal
2026-09-16 9:09 ` [PATCH v3 06/10] drm/i915/display_wa: Add support for Wa_14021768792 Suraj Kandpal
2026-09-16 9:09 ` [PATCH v3 07/10] drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10 Suraj Kandpal
2026-09-16 9:23 ` sashiko-bot
2026-09-16 9:09 ` [PATCH v3 08/10] drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n " Suraj Kandpal
2026-09-16 9:27 ` sashiko-bot
2026-09-16 9:09 ` [PATCH v3 09/10] drm/i915/dp: Extend intel_dp_can_support_m_n() for BMG M/N bypass Suraj Kandpal
2026-09-16 9:09 ` Suraj Kandpal [this message]
2026-09-16 9:18 ` ✓ CI.KUnit: success for Implement Wa_14021768792 to bypass m_n ratio limit (rev8) Patchwork
2026-09-16 9:55 ` ✓ Xe.CI.BAT: " Patchwork
2026-09-16 11:30 ` ✗ Xe.CI.FULL: failure " Patchwork
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