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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-09-22 21:44:06 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-22 22:17:35 -0700
commit0365ba7fb1fa94a41289d6a3d36b4d95960e56cc (patch)
tree1da4b5fb97266849d86a78010141e7345cc599aa /README
parent0f329075fb1dbd6845db03e9bb8252024fdbea1f (diff)
downloadlinux-2.6.38-lt-ux500-0365ba7fb1fa94a41289d6a3d36b4d95960e56cc.tar.gz
[PATCH] ppc64: SMU driver update & i2c support
The SMU is the "system controller" chip used by Apple recent G5 machines including the iMac G5. It drives things like fans, i2c busses, real time clock, etc... The current kernel contains a very crude driver that doesn't do much more than reading the real time clock synchronously. This is a completely rewritten driver that provides interrupt based command queuing, a userland interface, and an i2c/smbus driver for accessing the devices hanging off the SMU i2c busses like temperature sensors. This driver is a basic block for upcoming work on thermal control for those machines, among others. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jean Delvare <khali@linux-fr.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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