From f91649c525880006c78e62f6bae4d802a590c3ba Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Tue, 29 Jan 2019 10:23:43 +0100 Subject: [PATCH] usb: ehci-orion: add S2RAM support Add suspend/resume callbacks to reset the host controller properly during S2RAM operation. Signed-off-by: Miquel Raynal Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-orion.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 3109f082949e..790acf3633e8 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -182,6 +182,23 @@ static int ehci_orion_drv_reset(struct usb_hcd *hcd) return ret; } +static int __maybe_unused ehci_orion_drv_suspend(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + + return ehci_suspend(hcd, device_may_wakeup(dev)); +} + +static int __maybe_unused ehci_orion_drv_resume(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + + return ehci_resume(hcd, false); +} + +static SIMPLE_DEV_PM_OPS(ehci_orion_pm_ops, ehci_orion_drv_suspend, + ehci_orion_drv_resume); + static const struct ehci_driver_overrides orion_overrides __initconst = { .extra_priv_size = sizeof(struct orion_ehci_hcd), .reset = ehci_orion_drv_reset, @@ -334,6 +351,7 @@ static struct platform_driver ehci_orion_driver = { .driver = { .name = "orion-ehci", .of_match_table = ehci_orion_dt_ids, + .pm = &ehci_orion_pm_ops, }, }; -- 2.45.2