Merge branch 'pci/controller/keystone'

- Hold power management references to all PHYs while enabling them to avoid
  a race when one provides clocks to others (Siddharth Vadapalli)

* pci/controller/keystone:
  PCI: keystone: Fix race condition when initializing PHYs

Author: bjorn-helgaas

drivers/pci/controller/dwc/pci-keystone.c

@@ -1218,7 +1218,16 @@ static int ks_pcie_probe(struct platform_device *pdev)
 		goto err_link;
 	}
 
+	/* Obtain references to the PHYs */
+	for (i = 0; i < num_lanes; i++)
+		phy_pm_runtime_get_sync(ks_pcie->phy[i]);
+
 	ret = ks_pcie_enable_phy(ks_pcie);
+
+	/* Release references to the PHYs */
+	for (i = 0; i < num_lanes; i++)
+		phy_pm_runtime_put_sync(ks_pcie->phy[i]);
+
 	if (ret) {
 		dev_err(dev, "failed to enable phy\n");
 		goto err_link;