diff mbox series

[v3,17/21] drm/i915/xe2hpd: Set maximum DP rate to UHBR13.5

Message ID 20240415081423.495834-18-balasubramani.vivekanandan@intel.com (mailing list archive)
State New, archived
Headers show
Series Enable display support for Battlemage | expand

Commit Message

Vivekanandan, Balasubramani April 15, 2024, 8:14 a.m. UTC 
Max supported speed by xe2hpd is UHBR13.5. Limit the max DP source rate
to it.

Bspec: 67066
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 163da48bc406..23a4c5cca8e1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -474,6 +474,9 @@  static int mtl_max_source_rate(struct intel_dp *intel_dp)
 	if (intel_encoder_is_c10phy(encoder))
 		return 810000;
 
+	if (DISPLAY_VER_FULL(to_i915(encoder->base.dev)) == IP_VER(14, 1))
+		return 1350000;
+
 	return 2000000;
 }