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authorJavier Martinez Canillas <javier.martinez@collabora.co.uk>2013-06-14 18:40:43 +0200
committerThomas Gleixner <tglx@linutronix.de>2013-06-25 11:48:24 +0200
commit1f6236bfd7c38d5f9f7648fae7215e65274b9e63 (patch)
tree756c6965b6d3ed842decc4d4ebfd70e8919fa8fc /include/linux/irq.h
parent6fff8314046276331314ae32cea34c6d11c440d2 (diff)
downloadop-kernel-dev-1f6236bfd7c38d5f9f7648fae7215e65274b9e63.zip
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genirq: Add irq_get_trigger_type() to get IRQ flags
Drivers that want to get the trigger edge/level type flags for a given interrupt have to call irq_get_irq_data(irq) to get the struct irq_data and then irqd_get_trigger_type(irq_data) to obtain the IRQ flags. This is not only error prone but also unnecessary exposes the struct irq_data to callers. It's better to have an irq_get_trigger_type() function to obtain the edge/level flags for an IRQ. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Link: http://lkml.kernel.org/r/1371228049-27080-2-git-send-email-javier.martinez@collabora.co.uk Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 298a9b9..f04d3ba 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -584,6 +584,12 @@ static inline struct msi_desc *irq_data_get_msi(struct irq_data *d)
return d->msi_desc;
}
+static inline u32 irq_get_trigger_type(unsigned int irq)
+{
+ struct irq_data *d = irq_get_irq_data(irq);
+ return d ? irqd_get_trigger_type(d) : 0;
+}
+
int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
struct module *owner);
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