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 <we...@corscience.de>
---
drivers/serial/omap-serial.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/omap-serial.c b/drivers/serial/omap-serial.c
index 7f2f010..699b344 100644
--- a/drivers/serial/omap-serial.c
+++ b/drivers/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.rc2
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