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| author | Alexander Shiyan <shc_work@mail.ru> | 2012-09-24 21:12:00 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-26 13:41:05 -0700 |
| commit | 1685118f55209a518bb5efbbc91706f8b7fa7ffa (patch) | |
| tree | c8a785e83f7beca993e008b920baff02cc3dd0cf /drivers/tty/serial/sccnxp.c | |
| parent | 93b5c032d95e032691e627526b364cd463834347 (diff) | |
| download | linux-1685118f55209a518bb5efbbc91706f8b7fa7ffa.tar.gz linux-1685118f55209a518bb5efbbc91706f8b7fa7ffa.tar.bz2 linux-1685118f55209a518bb5efbbc91706f8b7fa7ffa.zip | |
serial: sccnxp: Report actual baudrate back to core
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/sccnxp.c')
| -rw-r--r-- | drivers/tty/serial/sccnxp.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c index 05d767cf82a7..a7a6659b96ef 100644 --- a/drivers/tty/serial/sccnxp.c +++ b/drivers/tty/serial/sccnxp.c @@ -213,7 +213,7 @@ const struct baud_table baud_std[] = { { 0, 0, 0, 0 } }; -static void sccnxp_set_baud(struct uart_port *port, int baud) +static int sccnxp_set_baud(struct uart_port *port, int baud) { struct sccnxp_port *s = dev_get_drvdata(port->dev); int div_std, tmp_baud, bestbaud = baud, besterr = -1; @@ -244,8 +244,11 @@ static void sccnxp_set_baud(struct uart_port *port, int baud) sccnxp_port_write(port, SCCNXP_ACR_REG, acr | ACR_TIMER_MODE); sccnxp_port_write(port, SCCNXP_CSR_REG, (csr << 4) | csr); - dev_dbg(port->dev, "Baudrate desired: %i, calculated: %i\n", - baud, bestbaud); + if (baud != bestbaud) + dev_dbg(port->dev, "Baudrate desired: %i, calculated: %i\n", + baud, bestbaud); + + return bestbaud; } static void sccnxp_enable_irq(struct uart_port *port, int mask) @@ -587,11 +590,14 @@ static void sccnxp_set_termios(struct uart_port *port, baud = uart_get_baud_rate(port, termios, old, 50, (s->flags & SCCNXP_HAVE_MR0) ? 230400 : 38400); - sccnxp_set_baud(port, baud); + baud = sccnxp_set_baud(port, baud); /* Update timeout according to new baud rate */ uart_update_timeout(port, termios->c_cflag, baud); + if (tty_termios_baud_rate(termios)) + tty_termios_encode_baud_rate(termios, baud, baud); + /* Enable RX & TX */ sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_ENABLE | CR_TX_ENABLE); |