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2db5054ac2
This patch adds runtime power management support to the isl29028 driver. It defaults to powering off the device after two seconds of inactivity. isl29028_chip_init_and_power_on() currently only zeros the CONFIGURE register on the chip, which will cause the chip to turn off. This patch also renames that function to isl29028_clear_configure_reg() since it is now used in several places. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>