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| author | Oliver Neukum <oliver@neukum.org> | 2009-11-27 15:17:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-01 01:43:16 +0100 |
| commit | ee4ecb8ac63a5792bec448037d4b82ec4144f94b (patch) | |
| tree | b272d4c5bcfe8ef8e7c94b6182fa2b3ed024b745 /drivers/usb/host/ehci.h | |
| parent | USB: musb: Fix CPPI IRQs not being signaled (diff) | |
| download | linux-ee4ecb8ac63a5792bec448037d4b82ec4144f94b.tar.xz linux-ee4ecb8ac63a5792bec448037d4b82ec4144f94b.zip | |
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 <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci.h')
| -rw-r--r-- | drivers/usb/host/ehci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 064e76821ff5..2d85e21ff282 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) |