From: Matthew Stewart <Matthew.Stewart2@amd.com>
Date: Tue, 19 May 2026 01:14:20 +0000 (-0400)
Subject: drm/amd/display: Enable DM for DCN 4.2.1
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=c2630fdd65d806a1bccee1a2ebbe9bf2aa742d46;p=thirdparty%2Flinux.git

drm/amd/display: Enable DM for DCN 4.2.1

[Why & How]
Add DM IP block to amdgpu_discovery

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Matthew Stewart <Matthew.Stewart2@amd.com>
Signed-off-by: Ray Wu <ray.wu@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/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 21f6761624c2c..d5d044e7fca72 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -2399,6 +2399,7 @@ static int amdgpu_discovery_set_display_ip_blocks(struct amdgpu_device *adev)
 		case IP_VERSION(3, 6, 0):
 		case IP_VERSION(4, 1, 0):
 		case IP_VERSION(4, 2, 0):
+		case IP_VERSION(4, 2, 1):
 			/* TODO: Fix IP version. DC code expects version 4.0.1 */
 			if (adev->ip_versions[DCE_HWIP][0] == IP_VERSION(4, 1, 0))
 				adev->ip_versions[DCE_HWIP][0] = IP_VERSION(4, 0, 1);