Messages in this thread Patch in this message | | | From | Thomas Weber <> | Subject | [PATCHv4] OMAP: Enable Magic SysRq on serial console ttyOx | Date | Tue, 1 Feb 2011 08:30:41 +0100 |
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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> --- v3->v4 Rebased to 2.6.38-rc2 after move of drivers/serial to drivers/tty/serial Added Acked-by and Tested-by
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 7f2f010..699b344 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) -- 1.7.4.rc3
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