PCI: rockchip: Factor out rockchip_pcie_get_phys()

We plan to introduce per-lane PHYs, so factor out rockchip_pcie_get_phys()
to make it easier in the future.  No functional change intended.

Tested-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index 80b9a88..35d6f59 100644 (file)
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -854,6 +854,19 @@ static void rockchip_pcie_legacy_int_handler(struct irq_desc *desc)
        chained_irq_exit(chip, desc);
 }
 
+static int rockchip_pcie_get_phys(struct rockchip_pcie *rockchip)
+{
+       struct device *dev = rockchip->dev;
+
+       rockchip->phy = devm_phy_get(dev, "pcie-phy");
+       if (IS_ERR(rockchip->phy)) {
+               if (PTR_ERR(rockchip->phy) != -EPROBE_DEFER)
+                       dev_err(dev, "missing phy\n");
+               return PTR_ERR(rockchip->phy);
+       }
+
+       return 0;
+}
 
 /**
  * rockchip_pcie_parse_dt - Parse Device Tree
@@ -884,12 +897,9 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
        if (IS_ERR(rockchip->apb_base))
                return PTR_ERR(rockchip->apb_base);
 
-       rockchip->phy = devm_phy_get(dev, "pcie-phy");
-       if (IS_ERR(rockchip->phy)) {
-               if (PTR_ERR(rockchip->phy) != -EPROBE_DEFER)
-                       dev_err(dev, "missing phy\n");
-               return PTR_ERR(rockchip->phy);
-       }
+       err = rockchip_pcie_get_phys(rockchip);
+       if (err)
+               return err;
 
        rockchip->lanes = 1;
        err = of_property_read_u32(node, "num-lanes", &rockchip->lanes);