Messages in this thread Patch in this message | | | From | Tony Lindgren <> | Subject | [PATCHv2] PM / wakeirq: Add wakeup name to dedicated wake irqs | Date | Fri, 23 Feb 2018 14:06:12 -0800 |
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This makes it easy to grep :wakeup /proc/interrupts.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Brian Norris <briannorris@chromium.org> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Suggested-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/base/power/power.h | 1 + drivers/base/power/wakeirq.c | 15 +++++++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -31,6 +31,7 @@ struct wake_irq { struct device *dev; unsigned int status; int irq; + char *name; }; extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c --- 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 +185,14 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq) if (!wirq) return -ENOMEM; + wirq->name = kasprintf(GFP_KERNEL, "%s:%s", + dev_name(dev), + "wakeup"); + if (!wirq->name) { + err = -ENOMEM; + goto err_free; + } + wirq->dev = dev; wirq->irq = irq; irq_set_status_flags(irq, IRQ_NOAUTOEN); @@ -196,9 +205,9 @@ 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 +219,8 @@ 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); -- 2.16.2
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