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serial: mxs-auart: add sysrq support 

When using mxs-auart based console, sometime we need the sysrq function
to help debugging kernel. The sysrq code is basically there,
this patch just simply enable it.

Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Janusz Uzycki 2014-10-10 13:13:28 +02:00 committed by Greg Kroah-Hartman
parent d4ac0633ad
commit 914d3b17e9
1 changed files with 4 additions and 0 deletions
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4
drivers/tty/serial/mxs-auart.c
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@ -14,6 +14,10 @@
* http://www.gnu.org/copyleft/gpl.html
*/
#if defined(CONFIG_SERIAL_MXS_AUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#define SUPPORT_SYSRQ
#endif
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>