Files
erofs-linux/drivers
Antti Seppälä dee88f4378 [media] nuvoton-cir: Don't touch PS/2 interrupts while initializing
There are reports[1] that on some motherboards loading the nuvoton-cir
disables PS/2 keyboard input. This is caused by an erroneous write of
CIR_INTR_MOUSE_IRQ_BIT to ACPI control register.

According to datasheet the write enables mouse power management event
interrupts which will probably have ill effects if the motherboard has
only one PS/2 port with keyboard in it.

The cir hardware does not need mouse interrupts to function and should
not touch them. This patch removes the illegal writes and registry
definitions.

[1] http://ubuntuforums.org/showthread.php?t=2106277&p=12461912&mode=threaded#post12461912

Reported-by: Bruno Maire <[email protected]>
Tested-by: Bruno Maire <[email protected]>
Signed-off-by: Antti Seppälä <[email protected]>
Acked-by: Jarod Wilson <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2014-02-04 17:47:26 -02:00
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