diff options
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 7e91b3d368cd..163fc9021f5a 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -508,8 +508,10 @@ static irqreturn_t imx_rxint(int irq, void *dev_id) if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx)) continue; - if (rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) ) { - if (rx & URXD_PRERR) + if (unlikely(rx & URXD_ERR)) { + if (rx & URXD_BRK) + sport->port.icount.brk++; + else if (rx & URXD_PRERR) sport->port.icount.parity++; else if (rx & URXD_FRMERR) sport->port.icount.frame++; @@ -524,7 +526,9 @@ static irqreturn_t imx_rxint(int irq, void *dev_id) rx &= sport->port.read_status_mask; - if (rx & URXD_PRERR) + if (rx & URXD_BRK) + flg = TTY_BREAK; + else if (rx & URXD_PRERR) flg = TTY_PARITY; else if (rx & URXD_FRMERR) flg = TTY_FRAME; @@ -1286,17 +1290,20 @@ static int serial_imx_resume(struct platform_device *dev) static int serial_imx_probe_dt(struct imx_port *sport, struct platform_device *pdev) { - static int portnum = 0; struct device_node *np = pdev->dev.of_node; const struct of_device_id *of_id = of_match_device(imx_uart_dt_ids, &pdev->dev); + int ret; if (!np) return -ENODEV; - sport->port.line = portnum++; - if (sport->port.line >= UART_NR) - return -EINVAL; + ret = of_alias_get_id(np, "serial"); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret); + return -ENODEV; + } + sport->port.line = ret; if (of_get_property(np, "fsl,uart-has-rtscts", NULL)) sport->have_rtscts = 1; |