Messages in this thread | | | Date | Mon, 8 Feb 2016 22:08:28 +0530 | From | Laxman Dewangan <> | Subject | Re: [PATCH V4 1/6] regmap: irq: add apis to unmap the mapped irq |
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On Monday 08 February 2016 08:25 PM, Mark Brown wrote: > * PGP Signed by an unknown key > > On Sat, Feb 06, 2016 at 08:07:22PM +0530, Laxman Dewangan wrote: > >> Before removing irq domains, it is require to unmap all >> mapped interrupt from that domain. Currently there is API >> to map the interrupt on chip as regmap_irq_get_virq() for >> creating mapping. Add equivalent API to dispose the mapped >> irq in irq domains. > This makes no sense to me. Why would you ever want to unmap the > interrupts separately to destroying the domain
This is the requirement from irq_domain_remove(). This is what we have in irq_domain_remove(): kernel/irq/irqdomain.c
/* * This routine is used to remove an irq domain. The caller must ensure * that all mappings within the domain have been disposed of prior to * use, depending on the revmap type. */ void irq_domain_remove(struct irq_domain *domain)
I am adding the API equivalent to regmap_irq_get_virq() to unmap virtual irq here.
> and why would you ever > want to destroy the domain without unmapping the interrupts? > That's exactlly we are trying to do, unmap interrupt in client level before destroying domain.
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