Commit-ID: 8b09a45dc12f83f2312a47f0f0087ec4004ebacc
Gitweb: http://git.kernel.org/tip/8b09a45dc12f83f2312a47f0f0087ec4004ebacc
Author: Sricharan R <r.sricharan@xxxxxx>
AuthorDate: Thu, 26 Jun 2014 12:40:30 +0530
Committer: Jason Cooper <jason@xxxxxxxxxxxxxx>
CommitDate: Mon, 30 Jun 2014 19:11:26 +0000
irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback
Adding kerneldoc for unmap callback function.
Signed-off-by: Sricharan R <r.sricharan@xxxxxx>
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Link: https://lkml.kernel.org/r/1403766634-18543-13-git-send-email-r.sricharan@xxxxxx
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
---
drivers/irqchip/irq-crossbar.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index a8c6156..518d712 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -89,6 +89,17 @@ static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
return 0;
}
+/**
+ * crossbar_domain_unmap - unmap a crossbar<->irq connection
+ * @d: domain of irq to unmap
+ * @irq: virq number
+ *
+ * We do not maintain a use count of total number of map/unmap
+ * calls for a particular irq to find out if a irq can be really
+ * unmapped. This is because unmap is called during irq_dispose_mapping(irq),
+ * after which irq is anyways unusable. So an explicit map has to be called
+ * after that.
+ */
static void crossbar_domain_unmap(struct irq_domain *d, unsigned int irq)
{
irq_hw_number_t hw = irq_get_irq_data(irq)->hwirq;
--
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