From 1a67e256dbd80f47f339c4a88c34deee12489aa0 Mon Sep 17 00:00:00 2001
From: Arnaud Ebalard <arno@natisbad.org>
Date: Fri, 13 Feb 2015 14:40:39 -0800
Subject: [PATCH] ARM: mvebu: ISL12057 rtc chip can now wake up RN102, RN102
 and RN2120
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Now that alarm support for ISL12057 chip is available w/ the specific
"isil,irq2-can-wakeup-machine" property, let's use that feature of the
driver dedicated to NETGEAR ReadyNAS 102, 104 and 2120 specific routing of
RTC Alarm IRQ#2 pin; on those devices, this pin is not connected to the
SoC but to a PMIC, which allows the device to be powered up when RTC alarm
rings.

For that to work, the chip needs to be explicitly marked as a device
wakeup source using this "isil,irq2-can-wakeup-machine" boolean property.
This makes 'wakealarm' sysfs entry available to configure the alarm.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Peter Huewe <peter.huewe@infineon.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Darshana Padmadas <darshanapadmadas@gmail.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Landley <rob@landley.net>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/boot/dts/armada-370-netgear-rn102.dts | 1 +
 arch/arm/boot/dts/armada-370-netgear-rn104.dts | 1 +
 arch/arm/boot/dts/armada-xp-netgear-rn2120.dts | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts
index 4e24932c6e30..1c83b7ce0982 100644
--- a/arch/arm/boot/dts/armada-370-netgear-rn102.dts
+++ b/arch/arm/boot/dts/armada-370-netgear-rn102.dts
@@ -87,6 +87,7 @@
 				isl12057: isl12057@68 {
 					compatible = "isil,isl12057";
 					reg = <0x68>;
+					isil,irq2-can-wakeup-machine;
 				};
 
 				g762: g762@3e {
diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
index 30586e47986a..5fbfe02964dc 100644
--- a/arch/arm/boot/dts/armada-370-netgear-rn104.dts
+++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
@@ -93,6 +93,7 @@
 				isl12057: isl12057@68 {
 					compatible = "isil,isl12057";
 					reg = <0x68>;
+					isil,irq2-can-wakeup-machine;
 				};
 
 				g762: g762@3e {
diff --git a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
index d81430aa4ab3..fc8bdfcd2348 100644
--- a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
+++ b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
@@ -100,6 +100,7 @@
 				isl12057: isl12057@68 {
 					compatible = "isil,isl12057";
 					reg = <0x68>;
+					isil,irq2-can-wakeup-machine;
 				};
 
 				/* Controller for rear fan #1 of 3 (Protechnic
-- 
2.20.1