From 8b09a45dc12f83f2312a47f0f0087ec4004ebacc Mon Sep 17 00:00:00 2001 From: Sricharan R Date: Thu, 26 Jun 2014 12:40:30 +0530 Subject: irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback Adding kerneldoc for unmap callback function. Signed-off-by: Sricharan R Acked-by: Santosh Shilimkar Link: https://lkml.kernel.org/r/1403766634-18543-13-git-send-email-r.sricharan@ti.com Signed-off-by: Jason Cooper --- drivers/irqchip/irq-crossbar.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/irqchip') 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; -- cgit v1.2.3