From: Keshava Munegowda <Keshava_mgowda@xxxxxx>
The global suspend and resume functions for ehci and ohci
drivers are implemented; these functions does the
pm_runtime_get_sync and pm_runtime_put_sync of the
parent device usbhs core driver respectively.
Signed-off-by: Keshava Munegowda <keshava_mgowda@xxxxxx>
---
drivers/usb/host/ehci-omap.c | 22 ++++++++++++++++++++--
drivers/usb/host/ohci-omap3.c | 21 +++++++++++++++++++++
2 files changed, 41 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 178f63e..a02a684 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -259,14 +259,32 @@ static void ehci_hcd_omap_shutdown(struct platform_device *pdev)
hcd->driver->shutdown(hcd);
}
+static int omap_ehci_resume(struct device *dev)
+{
+ if (dev->parent)
+ pm_runtime_get_sync(dev->parent);
+ return 0;
+}
+
+static int omap_ehci_suspend(struct device *dev)
+{
+ if (dev->parent)
+ pm_runtime_put_sync(dev->parent);
+ return 0;
+}
+
+static const struct dev_pm_ops omap_ehci_dev_pm_ops = {
+ .suspend = omap_ehci_suspend,
+ .resume = omap_ehci_resume,
+};
+
static struct platform_driver ehci_hcd_omap_driver = {
.probe = ehci_hcd_omap_probe,
.remove = ehci_hcd_omap_remove,
.shutdown = ehci_hcd_omap_shutdown,
- /*.suspend = ehci_hcd_omap_suspend, */
- /*.resume = ehci_hcd_omap_resume, */
.driver = {
.name = "ehci-omap",
+ .pm = &omap_ehci_dev_pm_ops,
}
};
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index 6ce50de..a1a7981 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -230,12 +230,33 @@ static void ohci_hcd_omap3_shutdown(struct platform_device *pdev)
hcd->driver->shutdown(hcd);
}
+
+static int omap_ohci_resume(struct device *dev)
+{
+ if (dev->parent)
+ pm_runtime_get_sync(dev->parent);
+ return 0;
+}
+
+static int omap_ohci_suspend(struct device *dev)
+{
+ if (dev->parent)
+ pm_runtime_put_sync(dev->parent);
+ return 0;
+}
+
+static const struct dev_pm_ops omap_ohci_dev_pm_ops = {
+ .suspend = omap_ohci_suspend,
+ .resume = omap_ohci_resume,
+};
+
static struct platform_driver ohci_hcd_omap3_driver = {
.probe = ohci_hcd_omap3_probe,
.remove = __devexit_p(ohci_hcd_omap3_remove),
.shutdown = ohci_hcd_omap3_shutdown,
.driver = {
.name = "ohci-omap3",
+ .pm = &omap_ohci_dev_pm_ops,
},
};
--
1.6.0.4
--
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