diff options
Diffstat (limited to 'src/drivers/usb/ehci.c')
| -rw-r--r-- | src/drivers/usb/ehci.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/drivers/usb/ehci.c b/src/drivers/usb/ehci.c index 653e72c1..d64024da 100644 --- a/src/drivers/usb/ehci.c +++ b/src/drivers/usb/ehci.c @@ -1498,6 +1498,7 @@ static int ehci_root_speed ( struct usb_hub *hub, struct usb_port *port ) { unsigned int speed; unsigned int line; int ccs; + int csc; int ped; /* Read port status */ @@ -1505,9 +1506,14 @@ static int ehci_root_speed ( struct usb_hub *hub, struct usb_port *port ) { DBGC2 ( ehci, "EHCI %p port %d status is %08x\n", ehci, port->address, portsc ); ccs = ( portsc & EHCI_PORTSC_CCS ); + csc = ( portsc & EHCI_PORTSC_CSC ); ped = ( portsc & EHCI_PORTSC_PED ); line = EHCI_PORTSC_LINE_STATUS ( portsc ); + /* Record disconnections and clear changes */ + port->disconnected |= csc; + writel ( portsc, ehci->op + EHCI_OP_PORTSC ( port->address ) ); + /* Determine port speed */ if ( ! ccs ) { /* Port not connected */ @@ -1564,7 +1570,8 @@ static void ehci_root_poll ( struct usb_hub *hub, struct usb_port *port ) { if ( ! change ) return; - /* Acknowledge changes */ + /* Record disconnections and clear changes */ + port->disconnected |= ( portsc & EHCI_PORTSC_CSC ); writel ( portsc, ehci->op + EHCI_OP_PORTSC ( port->address ) ); /* Report port status change */ |