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authorTony Lindgren <tony@atomide.com>2018-02-08 19:30:10 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-02-27 01:23:37 +0300
commitda997b22c40473b7db60bde6ea188d35565d10c8 (patch)
tree17c26d3593dc20083f74d85c0210f3a42d96cf82 /drivers/base/power/wakeirq.c
parent4a3928c6f8a53fa1aed28ccba227742486e8ddcb (diff)
downloadlinux-da997b22c40473b7db60bde6ea188d35565d10c8.tar.xz
PM / wakeirq: Add wakeup name to dedicated wake irqs
This makes it easy to grep :wakeup /proc/interrupts. Suggested-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/power/wakeirq.c')
-rw-r--r--drivers/base/power/wakeirq.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
index 6637fc319269..b8fa5c0f2d13 100644
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -112,6 +112,7 @@ void dev_pm_clear_wake_irq(struct device *dev)
free_irq(wirq->irq, wirq);
wirq->status &= ~WAKE_IRQ_DEDICATED_MASK;
}
+ kfree(wirq->name);
kfree(wirq);
}
EXPORT_SYMBOL_GPL(dev_pm_clear_wake_irq);
@@ -184,6 +185,12 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
if (!wirq)
return -ENOMEM;
+ wirq->name = kasprintf(GFP_KERNEL, "%s:wakeup", dev_name(dev));
+ if (!wirq->name) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+
wirq->dev = dev;
wirq->irq = irq;
irq_set_status_flags(irq, IRQ_NOAUTOEN);
@@ -196,9 +203,9 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
* so we use a threaded irq.
*/
err = request_threaded_irq(irq, NULL, handle_threaded_wake_irq,
- IRQF_ONESHOT, dev_name(dev), wirq);
+ IRQF_ONESHOT, wirq->name, wirq);
if (err)
- goto err_free;
+ goto err_free_name;
err = dev_pm_attach_wake_irq(dev, irq, wirq);
if (err)
@@ -210,6 +217,8 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
err_free_irq:
free_irq(irq, wirq);
+err_free_name:
+ kfree(wirq->name);
err_free:
kfree(wirq);