From: Jan Kiszka Date: Sat, 13 May 2017 07:28:59 +0000 (+0200) Subject: serial: exar: Preconfigure xr17v35x MPIOs as output X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7dea8165f1d6;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git serial: exar: Preconfigure xr17v35x MPIOs as output This is the safe default for GPIOs with unknown external wiring. Signed-off-by: Jan Kiszka Signed-off-by: Greg Kroah-Hartman --- 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); }