diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2017-05-13 09:28:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-18 16:26:40 +0200 |
| commit | 7dea8165f1d6434dc7572004363f86339f0f4322 (patch) | |
| tree | 04965ba886fc353d7da7471bd82b5a80c4688041 /drivers/tty/serial/8250/8250_exar.c | |
| parent | imx-serial: RX DMA startup latency (diff) | |
| download | linux-7dea8165f1d6434dc7572004363f86339f0f4322.tar.xz linux-7dea8165f1d6434dc7572004363f86339f0f4322.zip | |
serial: exar: Preconfigure xr17v35x MPIOs as output
This is the safe default for GPIOs with unknown external wiring.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_exar.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_exar.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c index 2a8f00d96e6b..0a20f7185094 100644 --- a/drivers/tty/serial/8250/8250_exar.c +++ b/drivers/tty/serial/8250/8250_exar.c @@ -176,13 +176,13 @@ static void setup_gpio(u8 __iomem *p) writeb(0x00, p + UART_EXAR_MPIOLVL_7_0); writeb(0x00, p + UART_EXAR_MPIO3T_7_0); writeb(0x00, p + UART_EXAR_MPIOINV_7_0); - writeb(0x00, p + UART_EXAR_MPIOSEL_7_0); + writeb(0xff, p + UART_EXAR_MPIOSEL_7_0); writeb(0x00, p + UART_EXAR_MPIOOD_7_0); writeb(0x00, p + UART_EXAR_MPIOINT_15_8); writeb(0x00, p + UART_EXAR_MPIOLVL_15_8); writeb(0x00, p + UART_EXAR_MPIO3T_15_8); writeb(0x00, p + UART_EXAR_MPIOINV_15_8); - writeb(0x00, p + UART_EXAR_MPIOSEL_15_8); + writeb(0xff, p + UART_EXAR_MPIOSEL_15_8); writeb(0x00, p + UART_EXAR_MPIOOD_15_8); } |