rtc: ds1343: remove misuse of IRQF_NO_SUSPEND flag
The IRQF_NO_SUSPEND flag is used to identify the interrupts that should be left enabled so as to allow them to work as expected during the suspend-resume cycle, but doesn't guarantee that it will wake the system from a suspended state, enable_irq_wake is recommended to be used for the wakeup. This patch removes the use of IRQF_NO_SUSPEND flags and uses newly introduce PM wakeup APIs dev_pm_{set,clear}_wake_irq. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: rtc-linux@googlegroups.com Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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@ -21,6 +21,7 @@
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#include <linux/rtc.h>
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#include <linux/bcd.h>
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#include <linux/pm.h>
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#include <linux/pm_wakeirq.h>
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#include <linux/slab.h>
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#define DS1343_DRV_VERSION "01.00"
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@ -663,15 +664,15 @@ static int ds1343_probe(struct spi_device *spi)
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if (priv->irq >= 0) {
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res = devm_request_threaded_irq(&spi->dev, spi->irq, NULL,
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ds1343_thread,
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IRQF_NO_SUSPEND | IRQF_ONESHOT,
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ds1343_thread, IRQF_ONESHOT,
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"ds1343", priv);
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if (res) {
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priv->irq = -1;
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dev_err(&spi->dev,
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"unable to request irq for rtc ds1343\n");
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} else {
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device_set_wakeup_capable(&spi->dev, 1);
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device_init_wakeup(&spi->dev, true);
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dev_pm_set_wake_irq(&spi->dev, spi->irq);
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}
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}
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@ -692,6 +693,8 @@ static int ds1343_remove(struct spi_device *spi)
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priv->irqen &= ~RTC_AF;
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mutex_unlock(&priv->mutex);
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dev_pm_clear_wake_irq(&spi->dev);
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device_init_wakeup(&spi->dev, false);
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devm_free_irq(&spi->dev, spi->irq, priv);
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}
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