51b1e8577c
many boards have a disconnected TTL level serial which can generate some garbage that can lead to spurious false sysrq detects. Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37210
24 lines
633 B
Diff
24 lines
633 B
Diff
--- a/drivers/tty/serial/8250/8250_core.c
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+++ b/drivers/tty/serial/8250/8250_core.c
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@@ -16,7 +16,7 @@
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* membase is an 'ioremapped' cookie.
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*/
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-#if defined(CONFIG_SERIAL_8250_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
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+#if defined(CONFIG_SERIAL_8250_SYSRQ) && defined(CONFIG_MAGIC_SYSRQ)
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#define SUPPORT_SYSRQ
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#endif
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--- a/drivers/tty/serial/8250/Kconfig
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+++ b/drivers/tty/serial/8250/Kconfig
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@@ -91,6 +91,10 @@ config SERIAL_8250_CONSOLE
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If unsure, say N.
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+config SERIAL_8250_SYSRQ
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+ bool "Magic sysrq support on 8250/16550 devices"
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+ depends on SERIAL_8250_CONSOLE
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+
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config FIX_EARLYCON_MEM
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bool
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depends on X86
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