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authorJanusz Uzycki <j.uzycki@elproma.com.pl>2014-10-10 13:13:28 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-05 18:56:47 -0800
commit914d3b17e90d9f75f764ffbdbdae354056b9fb79 (patch)
tree1476a70a42204846f17f0ae8bf8857cd144838e9 /drivers/tty/serial/mxs-auart.c
parentd4ac0633ad28580df12ed050993fa426d60c6429 (diff)
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>
Diffstat (limited to 'drivers/tty/serial/mxs-auart.c')
-rw-r--r--drivers/tty/serial/mxs-auart.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 10c29334fe2f..0296c1c3b70e 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -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>