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(parent: 3064743) | patch
powerpc: Enable /dev/port when isa_io_special is set
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Thu, 29 Aug 2013 06:55:07 +0000 (16:55 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 11 Oct 2013 05:53:30 +0000 (16:53 +1100)
commitac237b65f56c9b80d7774c35ccce15a74d445621
tree07f14f0c9553fb1484fa899b0d5e4804eb6fbfaatree | snapshot
parent306474304fdfe3723562a02226c0a44e8078d3a0commit | diff
powerpc: Enable /dev/port when isa_io_special is set

isa_io_special is set when the platform provides a "special"
implementation of inX/outX via some FW interface for example.

Such a platform doesn't need an ISA bridge on PCI, and so /dev/port
should be made available even if one isn't present.

This makes the LPC bus IOs accessible via /dev/port on PowerNV Power8

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/io.h diff | blob | history
Linux kernel for KaRo TX COM modules