[PATCH v4 6/6] PCI: rcar: Shut the PHY down in failpath

[Marek Vasut]

If anything fails past phy_init_fn() and the system is a Gen3 with
a PHY, the PHY will be left on and inited. This is caused by the
phy_init_fn, which is in fact a pointer to rcar_pcie_phy_init_gen3()
function, which starts the PHY, yet has no counterpart in the failpath.
Add that counterpart.

Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
Cc: Geert Uytterhoeven <geert+rene...@glider.be>
Cc: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>
Cc: Phil Edworthy <phil.edwor...@renesas.com>
Cc: Simon Horman <horms+rene...@verge.net.au>
Cc: Wolfram Sang <w...@the-dreams.de>
Cc: linux-renesas-soc@vger.kernel.org
Fixes: 517ca93a7159 ("PCI: rcar: Add R-Car gen3 PHY support")
---
V4: New patch
---
 drivers/pci/host/pcie-rcar.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 636c3c5095d2..695781934f0a 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1163,7 +1163,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
        if (rcar_pcie_hw_init(pcie)) {
                dev_info(dev, "PCIe link down\n");
                err = -ENODEV;
-               goto err_clk_disable;
+               goto err_phy_shutdown;
        }
 
        data = rcar_pci_read_reg(pcie, MACSR);
@@ -1175,7 +1175,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
                        dev_err(dev,
                                "failed to enable MSI support: %d\n",
                                err);
-                       goto err_clk_disable;
+                       goto err_phy_shutdown;
                }
        }
 
@@ -1189,6 +1189,12 @@ static int rcar_pcie_probe(struct platform_device *pdev)
        if (IS_ENABLED(CONFIG_PCI_MSI))
                rcar_pcie_teardown_msi(pcie);
 
+err_phy_shutdown:
+       if (pcie->phy) {
+               phy_power_off(pcie->phy);
+               phy_exit(pcie->phy);
+       }
+
 err_clk_disable:
        clk_disable_unprepare(pcie->bus_clk);
 
-- 
2.16.2