diff options
| author | Hennerich, Michael <Michael.Hennerich@analog.com> | 2009-09-02 09:26:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 06:46:16 -0700 |
| commit | eb661bc88252e5c6dc69df732e77e42981dd4d8b (patch) | |
| tree | fa822f60e840530359bd73addb77ead12ab20012 /drivers | |
| parent | ec3815c3e14dc68d49428e6505ae99e86e5dd067 (diff) | |
| download | op-kernel-dev-eb661bc88252e5c6dc69df732e77e42981dd4d8b.zip op-kernel-dev-eb661bc88252e5c6dc69df732e77e42981dd4d8b.tar.gz | |
USB: sl811-hcd: Fix device disconnect:
SL811 Device detected after removal used to be working in linux-2.6.22
but then broke somewhere between 2.6.22 and 2.6.28. Current
hub_port_connect_change() in drivers/usb/core/hub.c won't call
usb_disconnect() in case the SL811 driver sets portstatus
USB_PORT_FEAT_CONNECTION upon removal.
AFAIK the SL811 has only a combined Device Insert/Remove
detection bit, therefore use a count to distinguish insert or remove.
Signed-Off-By: Michael Hennerich <hennerich@blackfin.uclinux.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index a949259..5b22a4d 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -719,8 +719,12 @@ retry: /* port status seems weird until after reset, so * force the reset and make khubd clean up later. */ - sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION) - | (1 << USB_PORT_FEAT_CONNECTION); + if (sl811->stat_insrmv & 1) + sl811->port1 |= 1 << USB_PORT_FEAT_CONNECTION; + else + sl811->port1 &= ~(1 << USB_PORT_FEAT_CONNECTION); + + sl811->port1 |= 1 << USB_PORT_FEAT_C_CONNECTION; } else if (irqstat & SL11H_INTMASK_RD) { if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) { |
