diff options
| author | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2023-08-28 18:36:04 +0200 |
|---|---|---|
| committer | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2023-08-28 18:36:04 +0200 |
| commit | 942f6085cd5714acb59eb2534306943050805eb5 (patch) | |
| tree | 8c9ed8e890030c266adb3a4be3d8b4b01cd2774b /drivers/tty | |
| parent | 1793d83f61bb9e261c22781964665ff50bf61831 (diff) | |
| parent | 115472395b0a9ea522ba0e106d6dfd7a73df8ba6 (diff) | |
Merge tag 'v5.15.104' into 5.15-2.2.x-imx
This is the 5.15.104 stable release
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_em.c | 4 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/8250_fsl.c | 4 | ||||
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 12 |
3 files changed, 13 insertions, 7 deletions
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c index f8e99995eee9..d94c3811a8f7 100644 --- a/drivers/tty/serial/8250/8250_em.c +++ b/drivers/tty/serial/8250/8250_em.c @@ -106,8 +106,8 @@ static int serial8250_em_probe(struct platform_device *pdev) memset(&up, 0, sizeof(up)); up.port.mapbase = regs->start; up.port.irq = irq; - up.port.type = PORT_UNKNOWN; - up.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_IOREMAP; + up.port.type = PORT_16750; + up.port.flags = UPF_FIXED_PORT | UPF_IOREMAP | UPF_FIXED_TYPE; up.port.dev = &pdev->dev; up.port.private_data = priv; diff --git a/drivers/tty/serial/8250/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c index af74f82ad782..6a22f3a970f3 100644 --- a/drivers/tty/serial/8250/8250_fsl.c +++ b/drivers/tty/serial/8250/8250_fsl.c @@ -38,7 +38,7 @@ int fsl8250_handle_irq(struct uart_port *port) iir = port->serial_in(port, UART_IIR); if (iir & UART_IIR_NO_INT) { - spin_unlock(&up->port.lock); + spin_unlock_irqrestore(&up->port.lock, flags); return 0; } @@ -46,7 +46,7 @@ int fsl8250_handle_irq(struct uart_port *port) if (unlikely(up->lsr_saved_flags & UART_LSR_BI)) { up->lsr_saved_flags &= ~UART_LSR_BI; port->serial_in(port, UART_RX); - spin_unlock(&up->port.lock); + spin_unlock_irqrestore(&up->port.lock, flags); return 1; } diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index ab610380d87b..7385856d5e94 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -2417,9 +2417,15 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios, /* update the per-port timeout */ uart_update_timeout(port, termios->c_cflag, baud); - /* wait transmit engin complete */ - lpuart32_write(&sport->port, 0, UARTMODIR); - lpuart32_wait_bit_set(&sport->port, UARTSTAT, UARTSTAT_TC); + /* + * LPUART Transmission Complete Flag may never be set while queuing a break + * character, so skip waiting for transmission complete when UARTCTRL_SBK is + * asserted. + */ + if (!(old_ctrl & UARTCTRL_SBK)) { + lpuart32_write(&sport->port, 0, UARTMODIR); + lpuart32_wait_bit_set(&sport->port, UARTSTAT, UARTSTAT_TC); + } /* disable transmit and receive */ lpuart32_write(&sport->port, old_ctrl & ~(UARTCTRL_TE | UARTCTRL_RE), |