diff --git a/[refs] b/[refs]
index 931c1d6db528..08f483bed1ab 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2fa67f12e71d7f8adade7c4e6bb839156dea2365
+refs/heads/master: 190a43783f2c43186180c827444d4eac901b4bcf
diff --git a/trunk/drivers/gpu/drm/nouveau/nouveau_bios.c b/trunk/drivers/gpu/drm/nouveau/nouveau_bios.c
index fc924b649195..9ab0c83fe9be 100644
--- a/trunk/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/trunk/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2146,7 +2146,8 @@ init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
 	/* no iexec->execute check by design */
 
 	pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19);
-	bios_wr32(bios, NV_PBUS_PCI_NV_19, 0);
+	bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19 & ~0xf00);
+
 	bios_wr32(bios, reg, value1);
 
 	udelay(10);