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authorPeter Hurley <peter@hurleysoftware.com>2015-02-24 14:25:05 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-26 16:14:27 +0100
commite13cb72beeada6f6ac12058b9129334e3bb5ce85 (patch)
treeb3332425f6e55dc4427f2e7f920f3391175cfa1e /drivers/tty/serial/8250/8250_core.c
parentd81e50f6161ea169a14fbc17a94cd4943f5d8df6 (diff)
serial: 8250: Decouple core from skip_txen_test module param
Prepare for 8250 split; initialize the port flags based on the "skip_txen_test" module param to use the existing flag test. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_core.c')
-rw-r--r--drivers/tty/serial/8250/8250_core.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 0cf9b85901dc..bd06ab790c64 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2253,7 +2253,7 @@ int serial8250_do_startup(struct uart_port *port)
is variable. So, let's just don't test if we receive
TX irq. This way, we'll never enable UART_BUG_TXEN.
*/
- if (skip_txen_test || up->port.flags & UPF_NO_TXEN_TEST)
+ if (up->port.flags & UPF_NO_TXEN_TEST)
goto dont_test_tx_en;
/*
@@ -3196,6 +3196,9 @@ serial8250_register_ports(struct uart_driver *drv, struct device *dev)
up->port.dev = dev;
+ if (skip_txen_test)
+ up->port.flags |= UPF_NO_TXEN_TEST;
+
if (up->port.flags & UPF_FIXED_TYPE)
serial8250_init_fixed_type_port(up, up->port.type);
@@ -3663,6 +3666,9 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
if (up->port.dev)
uart->port.dev = up->port.dev;
+ if (skip_txen_test)
+ uart->port.flags |= UPF_NO_TXEN_TEST;
+
if (up->port.flags & UPF_FIXED_TYPE)
serial8250_init_fixed_type_port(uart, up->port.type);
@@ -3728,6 +3734,8 @@ void serial8250_unregister_port(int line)
uart_remove_one_port(&serial8250_reg, &uart->port);
if (serial8250_isa_devs) {
uart->port.flags &= ~UPF_BOOT_AUTOCONF;
+ if (skip_txen_test)
+ uart->port.flags |= UPF_NO_TXEN_TEST;
uart->port.type = PORT_UNKNOWN;
uart->port.dev = &serial8250_isa_devs->dev;
uart->capabilities = 0;