From: Sung Joon Kim <sungjoon.kim@amd.com>
Date: Fri, 26 Apr 2024 19:08:06 +0000 (-0400)
Subject: drm/amd/display: Expand to higher link rates
X-Git-Tag: io_uring-6.11-20240722~49^2~25^2~257
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=4655b4d953067c176ecdbee4167cc85fc0058be1;p=linux-block.git

drm/amd/display: Expand to higher link rates

[WHY & HOW]
To support higher link rates that sink allows, we need to make
sure driver is ready and perform correct link-training sequence.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
index 107b2cec572d..8f57b344f09e 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
@@ -209,6 +209,9 @@ static enum dc_link_rate linkRateInKHzToLinkRateMultiplier(uint32_t link_rate_in
 	case 8100000:
 		link_rate = LINK_RATE_HIGH3;	// Rate_9 (HBR3)- 8.10 Gbps/Lane
 		break;
+	case 10000000:
+		link_rate = LINK_RATE_UHBR10;	// UHBR10 - 10.0 Gbps/Lane
+		break;
 	default:
 		link_rate = LINK_RATE_UNKNOWN;
 		break;