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irq/irq_sim: implement irq_sim_baseirq()

PATCH In review Bartosz Golaszewski 1 participant 2 messages Sep 26, 2017 – Oct 5, 2017 IRQ

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Bartosz Golaszewski

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#0 lore raw

PATCH 1/1 irq/irq_sim: implement irq_sim_baseirq()

Some users need to access the base of the allocated interrupt range. Although this can be calculated manually, it's more elegant to expose an interface for that.

Signed-off-by Bartosz Golaszewski <[email protected]>

---
When porting the iio_dummy_evgen to using irq_sim I needed to manually calculate the base interrupt number. If this gets merged, I'll update the iio driver for 4.16.

 include/linux/irq_sim.h |  1 +
 kernel/irq/irq_sim.c    | 11 +++++++++++
 2 files changed, 12 insertions(+)
include/linux/irq_sim.h +1 -0
index 0380d899b955..246f593face8 100644
@@ -40,5 +40,6 @@ int devm_irq_sim_init(struct device *dev, struct irq_sim *sim,
 void irq_sim_fini(struct irq_sim *sim);
 void irq_sim_fire(struct irq_sim *sim, unsigned int offset);
 int irq_sim_irqnum(struct irq_sim *sim, unsigned int offset);
+int irq_sim_baseirq(struct irq_sim *sim);
 
 #endif /* _LINUX_IRQ_SIM_H */
kernel/irq/irq_sim.c +11 -0
index 24caabf1a0f7..9438599d0fc9 100644
@@ -162,3 +162,14 @@ int irq_sim_irqnum(struct irq_sim *sim, unsigned int offset)
 	return sim->irqs[offset].irqnum;
 }
 EXPORT_SYMBOL_GPL(irq_sim_irqnum);
+
+/**
+ * irq_sim_baseirq - Get the base interrupt number.
+ *
+ * @sim:        The interrupt simulator object.
+ */
+int irq_sim_baseirq(struct irq_sim *sim)
+{
+	return irq_sim_irqnum(sim, 0);
+}
+EXPORT_SYMBOL_GPL(irq_sim_baseirq);
Signature · 1 line
2.13.2
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#1 lore raw

2017-09-26 19:06 GMT+02:00 Bartosz Golaszewski <[email protected]>:

Quoted 5 lines

Some users need to access the base of the allocated interrupt range. Although this can be calculated manually, it's more elegant to expose an interface for that.

Signed-off-by Bartosz Golaszewski <[email protected]>
Quoted 9 lines

---
When porting the iio_dummy_evgen to using irq_sim I needed to manually calculate the base interrupt number. If this gets merged, I'll update the iio driver for 4.16.

 include/linux/irq_sim.h |  1 +
 kernel/irq/irq_sim.c    | 11 +++++++++++
 2 files changed, 12 insertions(+)

Superseded by: https://lkml.org/lkml/2017/10/5/312