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| author | Thomas Gleixner <tglx@linutronix.de> | 2014-08-28 16:49:43 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-01 13:48:21 +0200 |
| commit | 092fadd59b50208f6859f89dd7ea84e03955b544 (patch) | |
| tree | 7266c77f62a4e69d93ba110d14f7e3e76df1071d /kernel/irq/pm.c | |
| parent | 5417de222393164b87b2d142b6ec332be40a2564 (diff) | |
| download | linux-092fadd59b50208f6859f89dd7ea84e03955b544.tar.gz linux-092fadd59b50208f6859f89dd7ea84e03955b544.tar.bz2 linux-092fadd59b50208f6859f89dd7ea84e03955b544.zip | |
genirq: Move MASK_ON_SUSPEND handling into suspend_device_irqs()
There is no reason why we should delay the masking of interrupts whose
interrupt chip requests MASK_ON_SUSPEND to the point where we check
the wakeup interrupts. We can do it right at the point where we mark
the interrupt as suspended.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/irq/pm.c')
| -rw-r--r-- | kernel/irq/pm.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c index 74ca6bb541d5..a21b3dc9825a 100644 --- a/kernel/irq/pm.c +++ b/kernel/irq/pm.c @@ -56,6 +56,15 @@ static void suspend_device_irq(struct irq_desc *desc, int irq) desc->istate |= IRQS_SUSPENDED; __disable_irq(desc, irq); + + /* + * Hardware which has no wakeup source configuration facility + * requires that the non wakeup interrupts are masked at the + * chip level. The chip implementation indicates that with + * IRQCHIP_MASK_ON_SUSPEND. + */ + if (irq_desc_get_chip(desc)->flags & IRQCHIP_MASK_ON_SUSPEND) + mask_irq(desc); } /** @@ -176,19 +185,7 @@ int check_wakeup_irqs(void) if (irqd_is_wakeup_set(&desc->irq_data)) { if (desc->depth == 1 && desc->istate & IRQS_PENDING) return -EBUSY; - continue; } - /* - * Check the non wakeup interrupts whether they need - * to be masked before finally going into suspend - * state. That's for hardware which has no wakeup - * source configuration facility. The chip - * implementation indicates that with - * IRQCHIP_MASK_ON_SUSPEND. - */ - if (desc->istate & IRQS_SUSPENDED && - irq_desc_get_chip(desc)->flags & IRQCHIP_MASK_ON_SUSPEND) - mask_irq(desc); } return 0; |