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The 8250_mxpcie driver sets UPF_FIXED_TYPE and uses PORT_MUEX50 so that the generic 8250 core applies the correct defaults. Signed-off-by: Crescent Hsieh --- drivers/tty/serial/8250/8250_mxpcie.c | 3 ++- drivers/tty/serial/8250/8250_port.c | 8 ++++++++ include/uapi/linux/serial_core.h | 3 +++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_mxpcie.c b/drivers/tty/serial/8250/8250_mxpcie.c index 7a509e0a2bd7..c82d3149a03d 100644 --- a/drivers/tty/serial/8250/8250_mxpcie.c +++ b/drivers/tty/serial/8250/8250_mxpcie.c @@ -219,7 +219,8 @@ static int mxpcie8250_probe(struct pci_dev *pdev, const struct pci_device_id *id up.port.dev = dev; up.port.irq = pdev->irq; up.port.uartclk = MOXA_PUART_BASE_BAUD * 16; - up.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + up.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ | UPF_FIXED_TYPE; + up.port.type = PORT_MUEX50; up.port.iotype = UPIO_MEM; up.port.iobase = 0; diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 719faf92aa8a..a17fdb5d68d2 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -310,6 +310,14 @@ static const struct serial8250_config uart_config[] = { .rxtrig_bytes = {1, 8, 16, 30}, .flags = UART_CAP_FIFO | UART_CAP_AFE, }, + [PORT_MUEX50] = { + .name = "Moxa MUEx50 UART", + .fifo_size = 128, + .tx_loadsz = 128, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, + .rxtrig_bytes = {15, 31, 63, 111}, + .flags = UART_CAP_FIFO, + }, }; /* Uart divisor latch read */ diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h index 9c007a106330..377884e3856a 100644 --- a/include/uapi/linux/serial_core.h +++ b/include/uapi/linux/serial_core.h @@ -100,6 +100,9 @@ /* TXX9 type number */ #define PORT_TXX9 64 +/* Moxa MUEx50 UART */ +#define PORT_MUEX50 65 + /*Digi jsm */ #define PORT_JSM 69 -- 2.45.2