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msm: fixups to match current code 

The tty layer is now a bit more fussy about reporting the right baud rate
back. Make the msm driver match the current state of affairs.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2009-06-22 18:43:18 +01:00 committed by Linus Torvalds
parent 04896a77a9
commit 44da59e400
1 changed files with 8 additions and 3 deletions
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11
drivers/serial/msm_serial.c
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@ -229,7 +229,7 @@ static void msm_break_ctl(struct uart_port *port, int break_ctl)
msm_write(port, UART_CR_CMD_STOP_BREAK, UART_CR);
}
static void msm_set_baud_rate(struct uart_port *port, unsigned int baud)
static int msm_set_baud_rate(struct uart_port *port, unsigned int baud)
{
unsigned int baud_code, rxstale, watermark;
@ -281,6 +281,7 @@ static void msm_set_baud_rate(struct uart_port *port, unsigned int baud)
case 115200:
default:
baud_code = UART_CSR_115200;
baud = 115200;
rxstale = 31;
break;
}
@ -299,6 +300,8 @@ static void msm_set_baud_rate(struct uart_port *port, unsigned int baud)
/* set TX watermark */
msm_write(port, 10, UART_TFWR);
return baud;
}
static void msm_reset(struct uart_port *port)
@ -395,8 +398,10 @@ static void msm_set_termios(struct uart_port *port, struct ktermios *termios,
/* calculate and set baud rate */
baud = uart_get_baud_rate(port, termios, old, 300, 115200);
msm_set_baud_rate(port, baud);
baud = msm_set_baud_rate(port, baud);
if (tty_termios_baud_rate(termios))
tty_termios_encode_baud_rate(termios, baud, baud);
/* calculate parity */
mr = msm_read(port, UART_MR2);
mr &= ~UART_MR2_PARITY_MODE;