ously (which simplifies driver a bit); it also allows safe
access to the regulators as well.

This has been tested on the ti_omap3530evm board:
 1) using ts_lib after normal boot
 2) using ts_lib after "#echo 1/0 > /sys/bus/spi/devices/spi0.1/disable"
 3) using ts_lib after "#echo mem > /sys/power/state" and "wake up"

Also tested on pandora.

Based on original patch by Dmitry Torokhov.

Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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