A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

serial_txx9: Fix modem control line handling

Browse source 
This chip does not have modem control lines.  Return TIOCM_CAR and
TIOCM_DSR always on get_mctrl() and ajust some bits in termios cflag.

Signed-off-by: Atsushi Nemoto <[email protected]>
Cc: Ralf Baechle <[email protected]>
Acked-by: Alan Cox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Atsushi Nemoto 2007-08-22 14:01:15 -07:00 • committed by Linus Torvalds
commit 999999616e
1 changed files with 11 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

14
drivers/serial/serial_txx9.c
View file

@ -37,7 +37,7 @@
#include <asm/io.h>
static char *serial_version = "1.09";
static char *serial_version = "1.10";
static char *serial_name = "TX39/49 Serial driver";
#define PASS_LIMIT 256
@ -436,8 +436,10 @@ static unsigned int serial_txx9_get_mctrl(struct uart_port *port)
struct uart_txx9_port *up = (struct uart_txx9_port *)port;
unsigned int ret;
ret = ((sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS)
| ((sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS);
/* no modem control lines */
ret = TIOCM_CAR | TIOCM_DSR;
ret |= (sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS;
ret |= (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS;
return ret;
}
@ -557,6 +559,12 @@ serial_txx9_set_termios(struct uart_port *port, struct ktermios *termios,
unsigned long flags;
unsigned int baud, quot;
/*
* We don't support modem control lines.
*/
termios->c_cflag &= ~(HUPCL | CMSPAR);
termios->c_cflag |= CLOCAL;
cval = sio_in(up, TXX9_SILCR);
/* byte size and parity */
cval &= ~TXX9_SILCR_UMODE_MASK;