From ee4ecb8ac63a5792bec448037d4b82ec4144f94b Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Fri, 27 Nov 2009 15:17:59 +0100 Subject: USB: work around for EHCI with quirky periodic schedules a quirky chipset needs periodic schedules to run for a minimum time before they can be disabled again. This enforces the requirement with a time stamp and a calculated delay Signed-off-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/host/ehci.h') diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 064e76821ff..2d85e21ff28 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -118,6 +118,7 @@ struct ehci_hcd { /* one per controller */ unsigned stamp; unsigned random_frame; unsigned long next_statechange; + ktime_t last_periodic_enable; u32 command; /* SILICON QUIRKS */ @@ -127,6 +128,7 @@ struct ehci_hcd { /* one per controller */ unsigned big_endian_desc:1; unsigned has_amcc_usb23:1; unsigned need_io_watchdog:1; + unsigned broken_periodic:1; /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) -- cgit