diff options
| author | David Vrabel <david.vrabel@csr.com> | 2009-01-07 10:54:22 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2009-01-07 10:54:22 +0000 |
| commit | a5e6ced58d423cb09c4fc0087dcfdb0b5deb5e1c (patch) | |
| tree | 56ab507e1df59cae1f57c2f5883bc676f1147441 /drivers/usb/host/whci/pzl.c | |
| parent | a23e66f3b8cfdedec14541e71ef29a754870a20c (diff) | |
| download | linux-a5e6ced58d423cb09c4fc0087dcfdb0b5deb5e1c.tar.bz2 | |
wusb: timeout when waiting for ASL/PZL updates in whci-hcd
Timeout if an ASL or PZL update doesn't not complete and reset the
hardware.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Diffstat (limited to 'drivers/usb/host/whci/pzl.c')
| -rw-r--r-- | drivers/usb/host/whci/pzl.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index 2ae5abf69a6a..7dc85a0bee7c 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -183,12 +183,17 @@ void pzl_stop(struct whc *whc) void pzl_update(struct whc *whc, uint32_t wusbcmd) { struct wusbhc *wusbhc = &whc->wusbhc; + long t; mutex_lock(&wusbhc->mutex); if (wusbhc->active) { whc_write_wusbcmd(whc, wusbcmd, wusbcmd); - wait_event(whc->periodic_list_wq, - (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0); + t = wait_event_timeout( + whc->periodic_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0, + msecs_to_jiffies(1000)); + if (t == 0) + whc_hw_error(whc, "PZL update timeout"); } mutex_unlock(&wusbhc->mutex); } |