diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
index 0b5115dac4d6b030cb1187da5d9bc17558635a68..f40819ead3207e1b5761ad7cfedb38f9b1707069 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
@@ -49,6 +49,10 @@ struct nvkm_ior_func {
 			     u8 max_ac_packet, u8 rekey, u8 *avi, u8 avi_size,
 			     u8 *vendor, u8 vendor_size);
 	} hdmi;
+
+	struct {
+		u8 lanes[4];
+	} dp;
 };
 
 int nvkm_ior_new_(const struct nvkm_ior_func *func, struct nvkm_disp *,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
index 3175bb3031b57ecd13e73154feb5a69b05a77dbd..3bcd31adecd8ee65eac7d8537cf8ca5dd45caaf8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
@@ -44,14 +44,7 @@ g94_sor_loff(struct nvkm_output_dp *outp)
 u32
 g94_sor_dp_lane_map(struct nvkm_device *device, u8 lane)
 {
-	static const u8 gm100[] = { 0, 8, 16, 24 };
-	static const u8 mcp89[] = { 24, 16, 8, 0 }; /* thanks, apple.. */
-	static const u8   g94[] = { 16, 8, 0, 24 };
-	if (device->chipset >= 0x110)
-		return gm100[lane];
-	if (device->chipset == 0xaf)
-		return mcp89[lane];
-	return g94[lane];
+	return nvkm_ior_find(device->disp, SOR, -1)->func->dp.lanes[lane] * 8;
 }
 
 static int
@@ -305,6 +298,9 @@ static const struct nvkm_ior_func
 g94_sor = {
 	.state = g94_sor_state,
 	.power = nv50_sor_power,
+	.dp = {
+		.lanes = { 2, 1, 0, 3},
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
index c3ce42e7a12e35d2b520f20f65eef8dd6a71e3db..c97c178be3dc1efc2981c7cb11f04601bfab5054 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
@@ -160,6 +160,9 @@ gf119_sor = {
 	.hdmi = {
 		.ctrl = gf119_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 2, 1, 0, 3 },
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
index 9f71f9438c6ab853219c644e7ad1e7ad798907b4..6d85a285e47b95ed65e3f6769ffde1805ba42017 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
@@ -28,6 +28,9 @@ gk104_sor = {
 	.hdmi = {
 		.ctrl = gk104_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 2, 1, 0, 3 },
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
index acffeff59a70c0314b9c8efeaecfe9c8a3eee7ad..bb055cd91b2f9fbffe134979845338478db6f44b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
@@ -60,6 +60,9 @@ gm107_sor = {
 	.hdmi = {
 		.ctrl = gk104_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
index c8773d0580730918e8c5dc85576c0e82019a6026..11fed49fa9b6f4a773e298a09406ee6e02c27fe8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
@@ -41,7 +41,7 @@ gm200_sor_loff(struct nvkm_output_dp *outp)
 static inline u32
 gm200_sor_dp_lane_map(struct nvkm_device *device, u8 lane)
 {
-	return lane * 0x08;
+	return nvkm_ior_find(device->disp, SOR, -1)->func->dp.lanes[lane] * 8;
 }
 
 static int
@@ -137,6 +137,9 @@ gm200_sor = {
 	.hdmi = {
 		.ctrl = gk104_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
index 7036eeeace570f89de4abdf8b813f592822afa83..221255228e041363437d046f3839e329c704af66 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
@@ -28,6 +28,9 @@ gt215_sor = {
 	.hdmi = {
 		.ctrl = gt215_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 2, 1, 0, 3 },
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
index a074a4733ca0409d172810b0424a0ed5cf149530..a771d10f253b73caeeff098364351357396c9be5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
@@ -28,6 +28,9 @@ mcp77_sor = {
 	.hdmi = {
 		.ctrl = g84_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 2, 1, 0, 3},
+	},
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
index 56cf11ff0659226492a0d62684c4e90bf463dba2..aece6bec5ecf091eedf035f51de782b6a42d6023 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
@@ -28,6 +28,9 @@ mcp89_sor = {
 	.hdmi = {
 		.ctrl = gt215_hdmi_ctrl,
 	},
+	.dp = {
+		.lanes = { 3, 2, 1, 0 },
+	},
 };
 
 int