On Monday 22 December 2014 14:59:49 Matthew Garrett wrote:
> Can you try this diff?
Unfortunately it doesn't work (I made a change, see here below).
> diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
> index 5b2e761..637f980 100644
> --- a/drivers/rtc/rtc-cmos.c
> +++ b/drivers/rtc/rtc-cmos.c
> @@ -48,6 +48,7 @@ struct cmos_rtc {
> struct device *dev;
> int irq;
> struct resource *iomem;
> + struct rtc_wkalrm alm;
>
> void (*wake_on)(struct device *);
> void (*wake_off)(struct device *);
> @@ -59,6 +60,8 @@ struct cmos_rtc {
> u8 day_alrm;
> u8 mon_alrm;
> u8 century;
> +
> + bool valid_alarm;
> };
>
> /* both platform and pnp busses use negative numbers for invalid irqs */
> @@ -879,6 +882,7 @@ static int cmos_suspend(struct device *dev)
>
> cmos_checkintr(cmos, tmp);
> }
> + cmos->valid_alarm = !!cmos_read_alarm(dev, &cmos->alm);
I moved this after spin_unlock_irq(), it causes a deadlock otherwise.
> spin_unlock_irq(&rtc_lock);
>
> if (tmp & RTC_AIE) {
> @@ -949,6 +953,10 @@ static int cmos_resume(struct device *dev)
> hpet_mask_rtc_irq_bit(RTC_AIE);
> } while (mask & RTC_AIE);
> }
> +
> + if (cmos->valid_alarm)
> + cmos_set_alarm(dev, &cmos->alm);
> +
> spin_unlock_irq(&rtc_lock);
>
> dev_dbg(dev, "resume, ctrl %02x\n", tmp);
>
>
>
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