[PATCH 1/8] serial: exar: Preconfigure xr17v35x MPIOs as output

[Jan Kiszka]

This is the safe default for GPIOs with unknown external wiring.

Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
 drivers/tty/serial/8250/8250_exar.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_exar.c 
b/drivers/tty/serial/8250/8250_exar.c
index 1270ff163f63..b4fa585156c7 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -177,13 +177,13 @@ 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);
 }
 
-- 
2.12.0