diff options
| author | Matt Schulte <matts@commtech-fastcom.com> | 2012-11-20 12:23:56 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-21 19:28:04 -0500 |
| commit | b7a7e14f654c80dfd3aa514adee663c74cfa4be9 (patch) | |
| tree | 983d14ed2ec9e5e6bcf8b56e2438d064ab573e18 | |
| parent | d02f81555362e0032080af62154dca00d5ec99e0 (diff) | |
serial: Optimization: check for presence of UPF_EXAR_EFR flag before serial_in
Optimization: check for presence of UPF_EXAR_EFR flag before serial_in
Signed-off-by: Matt Schulte <matts@commtech-fastcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/8250/8250.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 3624df674a31..39d970719f7d 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c | |||
| @@ -911,9 +911,9 @@ static void autoconfig_16550a(struct uart_8250_port *up) | |||
| 911 | * found at offset 0x09. Instead check the Deice ID (DVID) | 911 | * found at offset 0x09. Instead check the Deice ID (DVID) |
| 912 | * register for a 2, 4 or 8 port UART. | 912 | * register for a 2, 4 or 8 port UART. |
| 913 | */ | 913 | */ |
| 914 | status1 = serial_in(up, UART_EXAR_DVID); | 914 | if (up->port.flags & UPF_EXAR_EFR) { |
| 915 | if (status1 == 0x82 || status1 == 0x84 || status1 == 0x88) { | 915 | status1 = serial_in(up, UART_EXAR_DVID); |
| 916 | if (up->port.flags & UPF_EXAR_EFR) { | 916 | if (status1 == 0x82 || status1 == 0x84 || status1 == 0x88) { |
| 917 | DEBUG_AUTOCONF("Exar XR17V35x "); | 917 | DEBUG_AUTOCONF("Exar XR17V35x "); |
| 918 | up->port.type = PORT_XR17V35X; | 918 | up->port.type = PORT_XR17V35X; |
| 919 | up->capabilities |= UART_CAP_AFE | UART_CAP_EFR | | 919 | up->capabilities |= UART_CAP_AFE | UART_CAP_EFR | |