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| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2019-01-29 10:23:43 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-30 09:22:35 +0100 |
| commit | f91649c525880006c78e62f6bae4d802a590c3ba (patch) | |
| tree | c76ad257761512da4f49b239ae39dd5f767c039c | |
| parent | usb: ehci-orion: avoid double PHY initialization (diff) | |
| download | linux-dev-f91649c525880006c78e62f6bae4d802a590c3ba.tar.xz linux-dev-f91649c525880006c78e62f6bae4d802a590c3ba.zip | |
usb: ehci-orion: add S2RAM support
Add suspend/resume callbacks to reset the host controller properly
during S2RAM operation.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ehci-orion.c | 18 |
1 files changed, 18 insertions, 0 deletions
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, }, }; |