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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2012-10-06 09:08:20 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-11-04 12:29:33 +0000 |
| commit | 18f360f865cffde44b112577fed1a6a0dd2740dc (patch) | |
| tree | 6253fe3261bb0e4814e8d03ba350c76b3fdcda86 /drivers/tty/serial/omap-serial.c | |
| parent | SERIAL: omap: don't read back LCR/MCR/EFR (diff) | |
| download | linux-dev-18f360f865cffde44b112577fed1a6a0dd2740dc.tar.xz linux-dev-18f360f865cffde44b112577fed1a6a0dd2740dc.zip | |
SERIAL: omap: simplify
We have the sequence:
- LCR mode B
- write EFR with ECB clear
- LCR mode normal
- if s/w flow
- LCR mode B
- write EFR with ECB clear
...
- LCR mode B
- write EFR with ECB clear
- LCR mode normal
This can be simplified to:
- if s/w flow
- LCR mode B
- write EFR with ECB clear
...
- LCR mode B
- write EFR with ECB clear
- LCR mode normal
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/tty/serial/omap-serial.c')
| -rw-r--r-- | drivers/tty/serial/omap-serial.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 6d588e20c648..fbce4c2e55cf 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -917,19 +917,11 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios, /* Disable access to TCR/TLR */ serial_out(up, UART_MCR, up->mcr); - serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_out(up, UART_EFR, up->efr); - serial_out(up, UART_LCR, cval); } else { /* Disable AUTORTS and AUTOCTS */ up->efr &= ~(UART_EFR_CTS | UART_EFR_RTS); - - serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_out(up, UART_EFR, up->efr); - serial_out(up, UART_LCR, cval); } - /* Software Flow Control Configuration */ if (up->port.flags & UPF_SOFT_FLOW) { serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); serial_out(up, UART_EFR, up->efr); @@ -975,11 +967,12 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios, serial_out(up, UART_TI752_TCR, OMAP_UART_TCR_TRIG); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); serial_out(up, UART_MCR, up->mcr); - serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_out(up, UART_EFR, up->efr); - serial_out(up, UART_LCR, up->lcr); } + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_EFR, up->efr); + serial_out(up, UART_LCR, up->lcr); + serial_omap_set_mctrl(&up->port, up->port.mctrl); spin_unlock_irqrestore(&up->port.lock, flags); |