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Revert "USB: OHCI: Properly handle ohci-exynos suspend"

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This reverts commit fea0896fd36cff487685970bfc36ddd96352d95b.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Greg Kroah-Hartman 2013-10-14 10:16:58 -07:00
parent 3de80bfc1c
commit 066ba8e061
1 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/usb/host/ohci-exynos.c
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@ -204,15 +204,24 @@ static int exynos_ohci_suspend(struct device *dev)
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct platform_device *pdev = to_platform_device(dev);
bool do_wakeup = device_may_wakeup(dev);
unsigned long flags;
int rc = 0;
rc = ohci_suspend(hcd, do_wakeup);
if (rc)
return rc;
/*
* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
* the spinlock to properly synchronize with possible pending
* RH suspend or resume activity.
*/
spin_lock_irqsave(&ohci->lock, flags);
if (ohci->rh_state != OHCI_RH_SUSPENDED &&
ohci->rh_state != OHCI_RH_HALTED) {
rc = -EINVAL;
goto fail;
}
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
if (exynos_ohci->otg)
exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
@ -220,6 +229,7 @@ static int exynos_ohci_suspend(struct device *dev)
clk_disable_unprepare(exynos_ohci->clk);
fail:
spin_unlock_irqrestore(&ohci->lock, flags);
return rc;