drivers/rtc/rtc-twl.c: fix missing device_init_wakeup() when booted with device tree

commit 24b8256a1fb28d357bc6fa09184ba29b4255ba5c upstream.

When booted in legacy mode device_init_wakeup() gets called by
drivers/mfd/twl-core.c when the children are initialized.  However, when
booted using device tree, the children are created with
of_platform_populate() instead add_children().

This means that the RTC driver will not have device_init_wakeup() set,
and we need to call it from the driver probe like RTC drivers typically
do.

Without this we cannot test PM wake-up events on omaps for cases where
there may not be any physical wake-up event.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index a3e98f1..b37c8b0 100644 (file)
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -490,6 +490,7 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
        }
 
        platform_set_drvdata(pdev, rtc);
+       device_init_wakeup(&pdev->dev, 1);
        return 0;
 
 out2: