Local register read/write functions have been removed and replaced
with calls to the new MFD functions.
Signed-off-by: Andy Sinclair <andy.sinclair@nordicsemi.no>
Added an MFD driver for the nPM1300.
This driver has register access helper functions that can be used
by subsystems. This will avoid each subsystem having to duplicate
the register access code.
Signed-off-by: Andy Sinclair <andy.sinclair@nordicsemi.no>
Add an API-less MFD driver for nPM6001. In this case, the MFD device
driver doesn't expose any API as plain I2C API is used within other
device drivers (regulator, GPIO, watchdog). This driver just initializes
some device properties.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Introduce the skeleton for multi-function device drivers. This driver
class is inspired by the same class found in Linux. Multi-function
devices expose multiple functionalities, for example, a LED driver,
regulator, GPIO controller, etc. The MFD driver class serves as a kind
of "parent" device where common functionality can be managed: bus
access, IRQ sharing, initialization code, etc.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
