From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Fri, 7 Dec 2018 11:21:14 +0000 (+0100)
Subject: LOCAL / PCI: exynos: add simple suspend/resume methods
X-Git-Tag: accepted/tizen/unified/20190330.030053~136
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4c7519dff2a9ddeaee84f6a8bd8f16d79958444b;p=platform%2Fkernel%2Flinux-exynos.git

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
--- 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);