Pass on the correct error message from platform_get_irq()
instead of hard coding it to "EINVAL".

Also change label from "err" to "ret" for better
readability and update the same in error path.
Signed-off-by: NPatil, Rachna <rachna@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch adds support for TI's ADC driver.
This is a multifunctional device.
Analog input lines are provided on which
voltage measurements can be carried out.
You can have upto 8 input lines.
Signed-off-by: NPatil, Rachna <rachna@ti.com>
Acked-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch converts touchscreen into a MFD client.
All the register definitions, clock initialization,
etc has been moved to MFD core driver.
Signed-off-by: NPatil, Rachna <rachna@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add the mfd core driver which supports touchscreen
and ADC.
With this patch we are only adding infrastructure to
support the MFD clients.
Signed-off-by: NPatil, Rachna <rachna@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>