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authorHennerich, Michael <Michael.Hennerich@analog.com>2009-09-02 09:26:21 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 06:46:16 -0700
commiteb661bc88252e5c6dc69df732e77e42981dd4d8b (patch)
treefa822f60e840530359bd73addb77ead12ab20012 /drivers
parentec3815c3e14dc68d49428e6505ae99e86e5dd067 (diff)
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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.c8
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)) {
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