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Documentation: get rid of write_super
[linux-2.6-block.git]
/
Documentation
/
IRQ-domain.txt
diff --git
a/Documentation/IRQ-domain.txt
b/Documentation/IRQ-domain.txt
index 27dcaabfb4db2f186bb6df8c5fb016a049c2d2d4..1401cece745ae46ce74fcb8c6a319aa05be7a318 100644
(file)
--- a/
Documentation/IRQ-domain.txt
+++ b/
Documentation/IRQ-domain.txt
@@
-93,6
+93,7
@@
Linux IRQ number into the hardware.
Most drivers cannot use this mapping.
==== Legacy ====
Most drivers cannot use this mapping.
==== Legacy ====
+irq_domain_add_simple()
irq_domain_add_legacy()
irq_domain_add_legacy_isa()
irq_domain_add_legacy()
irq_domain_add_legacy_isa()
@@
-115,3
+116,7
@@
The legacy map should only be used if fixed IRQ mappings must be
supported. For example, ISA controllers would use the legacy map for
mapping Linux IRQs 0-15 so that existing ISA drivers get the correct IRQ
numbers.
supported. For example, ISA controllers would use the legacy map for
mapping Linux IRQs 0-15 so that existing ISA drivers get the correct IRQ
numbers.
+
+Most users of legacy mappings should use irq_domain_add_simple() which
+will use a legacy domain only if an IRQ range is supplied by the
+system and will otherwise use a linear domain mapping.