diff options
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 9 | ||||
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/samsung.c | 6 | ||||
| -rw-r--r-- | drivers/tty/serial/st-asc.c | 11 |
4 files changed, 18 insertions, 10 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 6ee55a2d47bb..e65808c482f1 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -257,7 +257,7 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios, { unsigned int baud = tty_termios_baud_rate(termios); struct dw8250_data *d = p->private_data; - unsigned int rate; + long rate; int ret; if (IS_ERR(d->clk) || !old) @@ -265,7 +265,12 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios, clk_disable_unprepare(d->clk); rate = clk_round_rate(d->clk, baud * 16); - ret = clk_set_rate(d->clk, rate); + if (rate < 0) + ret = rate; + else if (rate == 0) + ret = -ENOENT; + else + ret = clk_set_rate(d->clk, rate); clk_prepare_enable(d->clk); if (!ret) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 8789ea423ccf..56f92d7348bf 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2373,7 +2373,7 @@ static int __init pl011_console_match(struct console *co, char *name, int idx, if (strcmp(name, "qdf2400_e44") == 0) { pr_info_once("UART: Working around QDF2400 SoC erratum 44"); qdf2400_e44_present = true; - } else if (strcmp(name, "pl011") != 0 || strcmp(name, "ttyAMA") != 0) { + } else if (strcmp(name, "pl011") != 0) { return -ENODEV; } diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index b4f86c219db1..7a17aedbf902 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1031,8 +1031,10 @@ static int s3c64xx_serial_startup(struct uart_port *port) if (ourport->dma) { ret = s3c24xx_serial_request_dma(ourport); if (ret < 0) { - dev_warn(port->dev, "DMA request failed\n"); - return ret; + dev_warn(port->dev, + "DMA request failed, DMA will not be used\n"); + devm_kfree(port->dev, ourport->dma); + ourport->dma = NULL; } } diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c index bcf1d33e6ffe..c334bcc59c64 100644 --- a/drivers/tty/serial/st-asc.c +++ b/drivers/tty/serial/st-asc.c @@ -575,12 +575,13 @@ static void asc_set_termios(struct uart_port *port, struct ktermios *termios, pinctrl_select_state(ascport->pinctrl, ascport->states[NO_HW_FLOWCTRL]); - gpiod = devm_get_gpiod_from_child(port->dev, "rts", - &np->fwnode); - if (!IS_ERR(gpiod)) { - gpiod_direction_output(gpiod, 0); + gpiod = devm_fwnode_get_gpiod_from_child(port->dev, + "rts", + &np->fwnode, + GPIOD_OUT_LOW, + np->name); + if (!IS_ERR(gpiod)) ascport->rts = gpiod; - } } } |