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- --- a/drivers/tty/serial/8250/8250.h
- +++ b/drivers/tty/serial/8250/8250.h
- @@ -86,6 +86,7 @@ struct serial8250_config {
- * STOP PARITY EPAR SPAR WLEN5 WLEN6
- */
- #define UART_CAP_NOTEMT BIT(18) /* UART without interrupt on TEMT available */
- +#define UART_CAP_NMOD BIT(19) /* UART doesn't do termios */
-
- #define UART_BUG_QUOT BIT(0) /* UART has buggy quot LSB */
- #define UART_BUG_TXEN BIT(1) /* UART has buggy TX IIR status */
- --- a/drivers/tty/serial/8250/8250_port.c
- +++ b/drivers/tty/serial/8250/8250_port.c
- @@ -287,7 +287,7 @@ static const struct serial8250_config ua
- .tx_loadsz = 16,
- .fcr = UART_FCR_ENABLE_FIFO |
- UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
- - .flags = UART_CAP_FIFO,
- + .flags = UART_CAP_FIFO | UART_CAP_NMOD,
- },
- [PORT_NPCM] = {
- .name = "Nuvoton 16550",
- @@ -2774,6 +2774,11 @@ serial8250_do_set_termios(struct uart_po
- unsigned long flags;
- unsigned int baud, quot, frac = 0;
-
- + if (up->capabilities & UART_CAP_NMOD) {
- + termios->c_cflag = 0;
- + return;
- + }
- +
- if (up->capabilities & UART_CAP_MINI) {
- termios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CMSPAR);
- if ((termios->c_cflag & CSIZE) == CS5 ||
|
