From: Manjunath Goudar <manjunath.gou...@linaro.org>
Suspend scenario in case of ohci-spear glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-spear suspend scenario.
Calling explicitly the ohci_suspend() routine in
spear_ohci_hcd_drv_suspend() will ensure proper
handling of suspend scenario.
V1->V2:
-No changes.
Due to the build failure on ep93xx reverted this patch.
This patch is needed as Alan Stern suggestion.
Signed-off-by: Manjunath Goudar <manjunath.gou...@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvi...@gmail.com>
Cc: Alan Stern <st...@rowland.harvard.edu>
Cc: Arnd Bergmann <a...@arndb.de>
Cc: Greg KH <g...@kroah.com>
Cc: linux-usb@vger.kernel.org
---
drivers/usb/host/ohci-spear.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 31ff3fc..41148f8 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -130,20 +130,26 @@ static int spear_ohci_hcd_drv_remove(struct
platform_device *pdev)
}
#if defined(CONFIG_PM)
-static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
+static int spear_ohci_hcd_drv_suspend(struct platform_device *pdev,
pm_message_t message)
{
- struct usb_hcd *hcd = platform_get_drvdata(dev);
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct spear_ohci *sohci_p = to_spear_ohci(hcd);
+ bool do_wakeup = device_may_wakeup(&pdev->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;
+
clk_disable_unprepare(sohci_p->clk);
- return 0;
+ return ret;
}
static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
--
1.7.9.5
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