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* [PATCH v2] ARM: shmobile: Use ->init_late() on Lager
@ 2013-11-20  0:02 Magnus Damm
  2013-11-21  4:55 ` Simon Horman
  0 siblings, 1 reply; 3+ messages in thread
From: Magnus Damm @ 2013-11-20  0:02 UTC (permalink / raw)
  To: linux-arm-kernel

From: Magnus Damm <damm@opensource.se>

Hook in shmobile_init_late() on Lager V2. This enables some PM
related things like CPUIdle and Suspend-to-RAM.

With this patch applied it is possible to use Suspend-to-RAM:
# echo enabled > /sys/class/tty/ttySC6/power/wakeup
# echo mem > /sys/power/state 
(wake by sending a character on the serial console)

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 Changes since V1:
 - added missing include <mach/common.h> to DT reference code

 Written on top of renesas.git renesas-devel-v3.12-20131119

 arch/arm/mach-shmobile/board-lager-reference.c |    2 ++
 arch/arm/mach-shmobile/board-lager.c           |    1 +
 2 files changed, 3 insertions(+)

--- 0001/arch/arm/mach-shmobile/board-lager-reference.c
+++ work/arch/arm/mach-shmobile/board-lager-reference.c	2013-11-20 08:14:45.000000000 +0900
@@ -20,6 +20,7 @@
 
 #include <linux/init.h>
 #include <linux/of_platform.h>
+#include <mach/common.h>
 #include <mach/rcar-gen2.h>
 #include <mach/r8a7790.h>
 #include <asm/mach/arch.h>
@@ -41,5 +42,6 @@ DT_MACHINE_START(LAGER_DT, "lager")
 	.init_early	= r8a7790_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_add_standard_devices,
+	.init_late	= shmobile_init_late,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END
--- 0001/arch/arm/mach-shmobile/board-lager.c
+++ work/arch/arm/mach-shmobile/board-lager.c	2013-11-20 08:14:34.000000000 +0900
@@ -259,5 +259,6 @@ DT_MACHINE_START(LAGER_DT, "lager")
 	.init_early	= r8a7790_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_init,
+	.init_late	= shmobile_init_late,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-11-21  6:58 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2013-11-20  0:02 [PATCH v2] ARM: shmobile: Use ->init_late() on Lager Magnus Damm
2013-11-21  4:55 ` Simon Horman
2013-11-21  6:58   ` Simon Horman

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