@@ -322,6 +322,13 @@ static int snvs_rtc_suspend(struct device *dev)
if (device_may_wakeup(dev))
enable_irq_wake(data->irq);
+ return 0;
+}
+
+static int snvs_rtc_suspend_noirq(struct device *dev)
+{
+ struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
if (data->clk)
clk_disable_unprepare(data->clk);
@@ -331,23 +338,28 @@ static int snvs_rtc_suspend(struct device *dev)
static int snvs_rtc_resume(struct device *dev)
{
struct snvs_rtc_data *data = dev_get_drvdata(dev);
- int ret;
if (device_may_wakeup(dev))
- disable_irq_wake(data->irq);
+ return disable_irq_wake(data->irq);
- if (data->clk) {
- ret = clk_prepare_enable(data->clk);
- if (ret)
- return ret;
- }
+ return 0;
+}
+
+static int snvs_rtc_resume_noirq(struct device *dev)
+{
+ struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
+ if (data->clk)
+ return clk_prepare_enable(data->clk);
return 0;
}
static const struct dev_pm_ops snvs_rtc_pm_ops = {
- .suspend_noirq = snvs_rtc_suspend,
- .resume_noirq = snvs_rtc_resume,
+ .suspend = snvs_rtc_suspend,
+ .suspend_noirq = snvs_rtc_suspend_noirq,
+ .resume = snvs_rtc_resume,
+ .resume_noirq = snvs_rtc_resume_noirq,
};
#define SNVS_RTC_PM_OPS (&snvs_rtc_pm_ops)
This is a note to let you know that I have just added a patch titled rtc: snvs: fix wakealarm by call enable_irq_wake earlier to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.y-ckt4. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 6a566dd10b30b9b6e85ce1baf99c51585880ee21 Mon Sep 17 00:00:00 2001 From: Stefan Agner <stefan@agner.ch> Date: Thu, 21 May 2015 17:29:35 +0200 Subject: rtc: snvs: fix wakealarm by call enable_irq_wake earlier commit 119434f44c78df8c4b6d67f835448542a4bd7e91 upstream. When entering suspend while an wakeup alarm is set, enable_set_wake should make sure that the RTC interrupt keep being enabled and the .irq_set_wake for the RTC interrupt get called. However, since the driver uses the suspend_noirq callback, the call to enable_irq_wake has been made after disabling the interrupts. While .irq_set_wake has been called properly, the interrupt remained disabled. Use the suspend callback to call enable_irq_wake early enough to ensure the RTC interrupt remains enabled. Fixes: 7654e9d4fd8f ("drivers/rtc/rtc-snvs: fix suspend/resume") Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/rtc/rtc-snvs.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) -- 1.9.1