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authorJohan Hovold <johan@kernel.org>2014-12-11 00:53:29 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 02:41:14 +0100
commit672e2b14741368134c8640e3851c841b422f6c45 (patch)
treea82d734c24e55dd02c51467b8d2515cf514da992 /arch
parentARM: dts: am33xx: update rtc-node compatible property (diff)
downloadlinux-672e2b14741368134c8640e3851c841b422f6c45.tar.xz
linux-672e2b14741368134c8640e3851c841b422f6c45.zip
ARM: dts: am335x-boneblack: enable power off and rtc wake up
Configure the RTC as system-power controller, which allows the system to be powered off as well as woken up again on subsequent RTC alarms. Note that the PMIC needs to be put in SLEEP (rather than OFF) mode to maintain RTC power. Specifically, this means that the PMIC ti,pmic-shutdown-controller property must be left unset in order to be able to wake up on RTC alarms. Tested on BeagleBone Black (rev A5). Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Tony Lindgren <tony@atomide.com> Cc: Benot Cousson <bcousson@baylibre.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Keerthy J <j-keerthy@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/am335x-boneblack.dts4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 901739fcb85a..520b63605eb6 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -80,3 +80,7 @@
status = "okay";
};
};
+
+&rtc {
+ ti,system-power-controller;
+};