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PCI: rcar: Shut the PHY down in failpath 

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.

Fixes: 517ca93a71 ("PCI: rcar: Add R-Car gen3 PHY support")
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
hifive-unleashed-5.1
Marek Vasut 2018-06-29 13:47:38 -05:00 committed by Bjorn Helgaas
parent 925d31668d
commit 4050360f96
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/pci/controller/pcie-rcar.c
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@ -1165,7 +1165,7 @@ 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);
@ -1177,7 +1177,7 @@ 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;
}
}
@ -1191,6 +1191,12 @@ err_msi_teardown:
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);