X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=Documentation%2FIRQ-domain.txt;h=8d990bde8693fdb85d4f4e67b5d9aaa155418990;hb=321514a081f15ea3c326f9bd2d5b29c3232e2226;hp=3a8e15cba816a4ea16fb0208518046214ebff1e6;hpb=87028bd117a63a608ab690e1a82ffb7223127fe6;p=karo-tx-linux.git diff --git a/Documentation/IRQ-domain.txt b/Documentation/IRQ-domain.txt index 3a8e15cba816..8d990bde8693 100644 --- a/Documentation/IRQ-domain.txt +++ b/Documentation/IRQ-domain.txt @@ -32,9 +32,9 @@ top of the irq_alloc_desc*() API. An irq_domain to manage mapping is preferred over interrupt controller drivers open coding their own reverse mapping scheme. -irq_domain also implements translation from Device Tree interrupt -specifiers to hwirq numbers, and can be easily extended to support -other IRQ topology data sources. +irq_domain also implements translation from an abstract irq_fwspec +structure to hwirq numbers (Device Tree and ACPI GSI so far), and can +be easily extended to support other IRQ topology data sources. === irq_domain usage === An interrupt controller driver creates and registers an irq_domain by @@ -184,7 +184,7 @@ There are four major interfaces to use hierarchy irq_domain: related resources associated with these interrupts. 3) irq_domain_activate_irq(): activate interrupt controller hardware to deliver the interrupt. -3) irq_domain_deactivate_irq(): deactivate interrupt controller hardware +4) irq_domain_deactivate_irq(): deactivate interrupt controller hardware to stop delivering the interrupt. Following changes are needed to support hierarchy irq_domain.