linux-phytec-ti

iio: adc: ti_am335x_adc: Disable ADC during suspend unconditionally

commit 9eea8326f4e6862637b94f09deb2ec9f2b50e1bc upstream.

Parent MFD device takes care of enabling ADC interface whenever
touchscreen is marked wakeup capable. Therefore, unconditionally disable
ADC interface during system suspend to save power in case of system with
just ADC and no TSC.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>