Commit b790f210 authored by Michael Welling's avatar Michael Welling Committed by Greg Kroah-Hartman

tty: serial: 8250_core.c Bug fix for Exar chips.

The sleep function was updated to put the serial port to sleep only when necessary.
This appears to resolve the errant behavior of the driver as described in
Kernel Bug 61961 – "My Exar Corp. XR17C/D152 Dual PCI UART modem does not
work with 3.8.0".
Signed-off-by: default avatarMichael Welling <mwelling@ieee.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d1db0eea
...@@ -555,7 +555,7 @@ static void serial8250_set_sleep(struct uart_8250_port *p, int sleep) ...@@ -555,7 +555,7 @@ static void serial8250_set_sleep(struct uart_8250_port *p, int sleep)
*/ */
if ((p->port.type == PORT_XR17V35X) || if ((p->port.type == PORT_XR17V35X) ||
(p->port.type == PORT_XR17D15X)) { (p->port.type == PORT_XR17D15X)) {
serial_out(p, UART_EXAR_SLEEP, 0xff); serial_out(p, UART_EXAR_SLEEP, sleep ? 0xff : 0);
return; return;
} }
......
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