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tty/8250 Add XR17D15x devices to the exar_handle_irq override

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Add XR17D15x devices to the exar_handle_irq override: they have the
same extra interrupt register that could fire and never be serviced by
the standard handle_irq.

Signed-off-by: Matt Schulte <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Matt Schulte authored and Greg Kroah-Hartman committed 2012-11-21 16:30:03 -08:00
1 parent 81db0772dc
commit 30fa96a346
1 file changed
+4 -2
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drivers/tty/serial/8250/8250.c
+4 -2
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@@ -1578,7 +1578,8 @@ static int exar_handle_irq(struct uart_port *port)
ret = serial8250_handle_irq(port, iir);
if (port->type == PORT_XR17V35X) {
if ((port->type == PORT_XR17V35X) ||
(port->type == PORT_XR17D15X)) {
int0 = serial_port_in(port, 0x80);
int1 = serial_port_in(port, 0x81);
int2 = serial_port_in(port, 0x82);
@@ -2689,7 +2690,8 @@ static void serial8250_config_port(struct uart_port *port, int flags)
serial8250_release_std_resource(up);
/* Fixme: probably not the best place for this */
if (port->type == PORT_XR17V35X)
if ((port->type == PORT_XR17V35X) ||
(port->type == PORT_XR17D15X))
port->handle_irq = exar_handle_irq;
}