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authorDarrick J. Wong <djwong@us.ibm.com>2009-01-06 14:41:32 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:18 -0800
commit2e75a4b7ae0dd4bf7b34e41c2c3be7ac23b8f1cc (patch)
tree3adaaa6a78b2d11b7648a93956c10a0968abd09c /Documentation/hwmon
parent8f8c1fb0c829278b889588da211a5a557518b06c (diff)
adt7470: fix pwm at a certain level during temperature sensor scan
In the small window that it takes to read the temperature sensors, the pwm outputs momentarily drop to 0. This causes a noticeable hiccup in fan speed, which is slightly annoying. The solution is to manually program the pwm output with whatever the automatic value is and then shift the fans to manual control while reading temperatures. Once that is done, put the fans back to whatever mode of control was there before. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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