diff options
| author | Thomas Weber <weber@corscience.de> | 2011-02-01 08:30:41 +0100 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-03-27 21:53:44 -0400 |
| commit | ceb4b2fe28ae1890180bb971bfd6fdcac5fa8f1b (patch) | |
| tree | 75ba0454410c54892ad6172313ca1a7d22d685d1 | |
| parent | 981e7269aed0073517194f3ed5a48216043a9d97 (diff) | |
OMAP: Enable Magic SysRq on serial console ttyOx
Magic SysRq key is not working for OMAP on new serial
console ttyOx because SUPPORT_SYSRQ is not defined
for omap-serial.
This patch defines SUPPORT_SYSRQ in omap-serial and
enables handling of Magic SysRq character.
Further there is an issue of losing first break character.
Removing the reset of the lsr_break_flag fixes this issue.
Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Govindraj.R <govindraj.raja@ti.com>
Tested-by: Manjunath G Kondaiah <manjugk@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
(cherry picked from commit 364a6ece62455f669336e50d5b00f14ba650da93)
| -rw-r--r-- | drivers/tty/serial/omap-serial.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 7f2f0105878..699b34446a5 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -20,6 +20,10 @@ * this driver as required for the omap-platform. */ +#if defined(CONFIG_SERIAL_OMAP_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) +#define SUPPORT_SYSRQ +#endif + #include <linux/module.h> #include <linux/init.h> #include <linux/console.h> @@ -190,7 +194,6 @@ static inline void receive_chars(struct uart_omap_port *up, int *status) if (up->port.line == up->port.cons->index) { /* Recover the break flag from console xmit */ lsr |= up->lsr_break_flag; - up->lsr_break_flag = 0; } #endif if (lsr & UART_LSR_BI) |