PCI: cadence: Add shutdown callback to host driver

Add shutdown callback to host driver which will disable PHY and
PM runtime.

Signed-off-by: Alan Douglas <adouglas@cadence.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/pci/controller/pcie-cadence-host.c b/drivers/pci/controller/pcie-cadence-host.c
index e3e9b7de8592..ec394f6a19c8 100644
--- a/drivers/pci/controller/pcie-cadence-host.c
+++ b/drivers/pci/controller/pcie-cadence-host.c
@@ -343,6 +343,20 @@ static int cdns_pcie_host_probe(struct platform_device *pdev)
         return ret;
 }
 
+static void cdns_pcie_shutdown(struct platform_device *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct cdns_pcie *pcie = dev_get_drvdata(dev);
+        int ret;
+
+        ret = pm_runtime_put_sync(dev);
+        if (ret < 0)
+                dev_dbg(dev, "pm_runtime_put_sync failed\n");
+
+        pm_runtime_disable(dev);
+        cdns_pcie_disable_phy(pcie);
+}
+
 static struct platform_driver cdns_pcie_host_driver = {
         .driver = {
                 .name = "cdns-pcie-host",
@@ -350,5 +364,6 @@ static struct platform_driver cdns_pcie_host_driver = {
                 .pm     = &cdns_pcie_pm_ops,
         },
         .probe = cdns_pcie_host_probe,
+        .shutdown = cdns_pcie_shutdown,
 };
 builtin_platform_driver(cdns_pcie_host_driver);