drm/nouveau/dp: store unencoded link_bw everywhere

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 5308024..e0d275e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -708,11 +708,8 @@
 	case OUTPUT_TV:
 		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
 	case OUTPUT_DP:
-		if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
-			max_clock = nv_encoder->dp.link_nr * 270000;
-		else
-			max_clock = nv_encoder->dp.link_nr * 162000;
-
+		max_clock  = nv_encoder->dp.link_nr;
+		max_clock *= nv_encoder->dp.link_bw;
 		clock = clock * nouveau_connector_bpp(connector) / 8;
 		break;
 	default: