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| author |   Sricharan R <r.sricharan@ti.com> | 2014-06-26 12:40:30 +0530 |
|---|---|---|
| committer |   Jason Cooper <jason@lakedaemon.net> | 2014-06-30 19:11:26 +0000 |
| commit | 8b09a45dc12f83f2312a47f0f0087ec4004ebacc (patch) | |
| tree | db5097f38b5c541a4ac267c1ffc48650b93a4232 /drivers/irqchip | |
| parent | irqchip: crossbar: Set cb pointer to null in case of error (diff) | |
| download | linux-dev-8b09a45dc12f83f2312a47f0f0087ec4004ebacc.tar.xz linux-dev-8b09a45dc12f83f2312a47f0f0087ec4004ebacc.zip | |
irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback
Adding kerneldoc for unmap callback function.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Link: https://lkml.kernel.org/r/1403766634-18543-13-git-send-email-r.sricharan@ti.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-crossbar.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c index a8c615692803..518d712c475a 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; |