From: grygorii.strashko@ti.com (Grygorii Strashko)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/6] genirq: introduce irq_chip_set_type_parent() helper
Date: Fri, 14 Aug 2015 15:20:26 +0300
Message-ID: <1439554830-19502-3-git-send-email-grygorii.strashko@ti.com> (raw)
In-Reply-To: <1439554830-19502-1-git-send-email-grygorii.strashko@ti.com>
It's expected to use this helper when the current
domain doesn't implement .irq_set_type(), but expect
the parent to do so.
Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
include/linux/irq.h | 1 +
kernel/irq/chip.c | 17 +++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 92188b0..51744bc 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -484,6 +484,7 @@ extern int irq_chip_set_affinity_parent(struct irq_data *data,
extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on);
extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data,
void *vcpu_info);
+extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type);
#endif
/* Handling of unhandled and spurious interrupts: */
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 6de638b..ae21682 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -985,6 +985,23 @@ int irq_chip_set_affinity_parent(struct irq_data *data,
}
/**
+ * irq_chip_set_type_parent - Set IRQ type on the parent interrupt
+ * @data: Pointer to interrupt specific data
+ * @type: IRQ_TYPE_{LEVEL,EDGE}_* value - see include/linux/irq.h
+ *
+ * Conditional, as the underlying parent chip might not implement it.
+ */
+int irq_chip_set_type_parent(struct irq_data *data, unsigned int type)
+{
+ data = data->parent_data;
+
+ if (data->chip->irq_set_type)
+ return data->chip->irq_set_type(data, type);
+
+ return -ENOSYS;
+}
+
+/**
* irq_chip_retrigger_hierarchy - Retrigger an interrupt in hardware
* @data: Pointer to interrupt specific data
*
--
2.5.0
next prev parent reply index
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-14 12:20 [PATCH v3 0/6] genirq: irqdomain_hierarchy: fixes Grygorii Strashko
2015-08-14 12:20 ` [PATCH v3 1/6] genirq: fix irq_chip_retrigger_hierarchy Grygorii Strashko
2015-08-17 3:28 ` Jiang Liu
2015-08-14 12:20 ` Grygorii Strashko [this message]
2015-08-14 12:20 ` [PATCH v3 3/6] irqchip: crossbar: fix arm gic irq type configuration Grygorii Strashko
2015-08-14 12:20 ` [PATCH v3 4/6] ARM: OMAP: wakeupgen: " Grygorii Strashko
2015-08-14 12:20 ` [PATCH v3 5/6] irqchip: crossbar: fix irq masking at suspend Grygorii Strashko
2015-08-14 12:20 ` [PATCH v3 6/6] irqchip: crossbar: fix set_wake functionality Grygorii Strashko
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