USB: OHCI: Properly handle ohci-sm501 suspend
Suspend scenario in case of ohci-sm501 glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly
handle ohci-sm501 suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_sm501_suspend() will ensure proper handling of suspend
scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index d479d5d..2a5de5f 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -216,14 +216,21 @@
static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg)
{
struct device *dev = &pdev->dev;
- struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(pdev));
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ bool do_wakeup = device_may_wakeup(dev);
+ int ret;
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
+ ret = ohci_suspend(hcd, do_wakeup);
+ if (ret)
+ return ret;
+
sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
- return 0;
+ return ret;
}
static int ohci_sm501_resume(struct platform_device *pdev)