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authorChristoph Hellwig <hch@lst.de>2019-02-11 16:43:23 +0300
committerJonathan Corbet <corbet@lwn.net>2019-02-11 18:23:07 +0300
commit9a065fa8f76f1b025c6b595d781050ad32db76bf (patch)
treeff2e598267065b5a13eb75cd1888addf6842ff59 /Documentation/DMA-ISA-LPC.txt
parentbf7fbeeae6db644ef5995085de2bc5c6121f8c8d (diff)
downloadlinux-9a065fa8f76f1b025c6b595d781050ad32db76bf.tar.xz
Documentation/DMA-ISA-LPC: fix an incorrect reference
AFAIK we never had a isa_virt_to_phys, it always was isa_virt_to_bus. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/DMA-ISA-LPC.txt')
-rw-r--r--Documentation/DMA-ISA-LPC.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/DMA-ISA-LPC.txt b/Documentation/DMA-ISA-LPC.txt
index 8c2b8be6e45b..b1ec7b16c21f 100644
--- a/Documentation/DMA-ISA-LPC.txt
+++ b/Documentation/DMA-ISA-LPC.txt
@@ -52,8 +52,8 @@ Address translation
-------------------
To translate the virtual address to a bus address, use the normal DMA
-API. Do _not_ use isa_virt_to_phys() even though it does the same
-thing. The reason for this is that the function isa_virt_to_phys()
+API. Do _not_ use isa_virt_to_bus() even though it does the same
+thing. The reason for this is that the function isa_virt_to_bus()
will require a Kconfig dependency to ISA, not just ISA_DMA_API which
is really all you need. Remember that even though the DMA controller
has its origins in ISA it is used elsewhere.