LOCAL / PCI: exynos: add simple suspend/resume methods

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I255983c0cbd6ee19b39c9c229d21139a46dc22f4

diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/dwc/pci-exynos.c
index 7fd435f..e7474ae 100644 (file)
--- a/drivers/pci/dwc/pci-exynos.c
+++ b/drivers/pci/dwc/pci-exynos.c
@@ -598,6 +598,32 @@ static int __exit exynos_pcie_remove(struct platform_device *pdev)
        return 0;
 }
 
+static int __maybe_unused exynos_pcie_suspend_noirq(struct device *dev)
+{
+       struct exynos_pcie *ep = dev_get_drvdata(dev);
+
+       phy_power_off(ep->phy);
+       phy_exit(ep->phy);
+
+       return 0;
+}
+
+static int __maybe_unused exynos_pcie_resume_noirq(struct device *dev)
+{
+       struct exynos_pcie *ep = dev_get_drvdata(dev);
+       struct dw_pcie *pci = ep->pci;
+       struct pcie_port *pp = &pci->pp;
+
+       exynos_pcie_host_init(pp);
+
+       return 0;
+}
+
+static const struct dev_pm_ops exynos_pcie_pm_ops = {
+       SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos_pcie_suspend_noirq,
+                                     exynos_pcie_resume_noirq)
+};
+
 static const struct of_device_id exynos_pcie_of_match[] = {
        {
                .compatible = "samsung,exynos5440-pcie",
@@ -615,6 +641,7 @@ static struct platform_driver exynos_pcie_driver = {
        .driver = {
                .name   = "exynos-pcie",
                .of_match_table = exynos_pcie_of_match,
+               .pm             = &exynos_pcie_pm_ops,
        },
 };
 builtin_platform_driver(exynos_pcie_driver);