diff options
| author | Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> | 2016-07-19 13:13:06 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-31 15:48:28 +0200 |
| commit | aa9e7d78039e34ac0f56b370e21ac719482823ee (patch) | |
| tree | 0677cf5e90d2772539f8c7161eb5bcf833917c72 /drivers/tty/serial/fsl_lpuart.c | |
| parent | d68827c62a105eec547945daedf4d1d3e283717d (diff) | |
| download | talos-obmc-linux-aa9e7d78039e34ac0f56b370e21ac719482823ee.tar.gz talos-obmc-linux-aa9e7d78039e34ac0f56b370e21ac719482823ee.zip | |
tty: serial: fsl_lpuart: Fix broken 8m/s1 support
By default the driver always configure the mode as 8s1 even when 8m1 mode is
selected. Fix this by adding support to control the space/mark bit.
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 71646323e71b..5608b82b7f2d 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1220,13 +1220,14 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios, { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); unsigned long flags; - unsigned char cr1, old_cr1, old_cr2, cr4, bdh, modem; + unsigned char cr1, old_cr1, old_cr2, cr3, cr4, bdh, modem; unsigned int baud; unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8; unsigned int sbr, brfa; cr1 = old_cr1 = readb(sport->port.membase + UARTCR1); old_cr2 = readb(sport->port.membase + UARTCR2); + cr3 = readb(sport->port.membase + UARTCR3); cr4 = readb(sport->port.membase + UARTCR4); bdh = readb(sport->port.membase + UARTBDH); modem = readb(sport->port.membase + UARTMODEM); @@ -1274,7 +1275,10 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios, if ((termios->c_cflag & PARENB)) { if (termios->c_cflag & CMSPAR) { cr1 &= ~UARTCR1_PE; - cr1 |= UARTCR1_M; + if (termios->c_cflag & PARODD) + cr3 |= UARTCR3_T8; + else + cr3 &= ~UARTCR3_T8; } else { cr1 |= UARTCR1_PE; if ((termios->c_cflag & CSIZE) == CS8) @@ -1342,6 +1346,7 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios, writeb(cr4 | brfa, sport->port.membase + UARTCR4); writeb(bdh, sport->port.membase + UARTBDH); writeb(sbr & 0xFF, sport->port.membase + UARTBDL); + writeb(cr3, sport->port.membase + UARTCR3); writeb(cr1, sport->port.membase + UARTCR1); writeb(modem, sport->port.membase + UARTMODEM); |
