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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2013-12-13 05:12:30 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-13 06:19:26 +0400
commit222ead7fd80f455ac377ae20dfeb56cab513db96 (patch)
treed32eb368882569d2b9ba1d30805b0e3f658b7f9b
parentd73238d4a6ca2eadbd14565d769706c85650c641 (diff)
downloadlinux-222ead7fd80f455ac377ae20dfeb56cab513db96.tar.xz
rtc: s5m: enable IRQ wake during suspend
Add PM suspend/resume ops to rtc-s5m driver and enable IRQ wake during suspend so the RTC would act like a wake up source. This allows waking up from suspend to RAM on RTC alarm interrupt. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mark Brown <broonie@linaro.org> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/rtc/rtc-s5m.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 977b40cd32a7..0ba56b7cb382 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -639,6 +639,30 @@ static void s5m_rtc_shutdown(struct platform_device *pdev)
s5m_rtc_enable_smpl(info, false);
}
+static int s5m_rtc_resume(struct device *dev)
+{
+ struct s5m_rtc_info *info = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (device_may_wakeup(dev))
+ ret = disable_irq_wake(info->irq);
+
+ return ret;
+}
+
+static int s5m_rtc_suspend(struct device *dev)
+{
+ struct s5m_rtc_info *info = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (device_may_wakeup(dev))
+ ret = enable_irq_wake(info->irq);
+
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
+
static const struct platform_device_id s5m_rtc_id[] = {
{ "s5m-rtc", 0 },
};
@@ -647,6 +671,7 @@ static struct platform_driver s5m_rtc_driver = {
.driver = {
.name = "s5m-rtc",
.owner = THIS_MODULE,
+ .pm = &s5m_rtc_pm_ops,
},
.probe = s5m_rtc_probe,
.shutdown = s5m_rtc_shutdown,