[UPSTREAM 0/2] pcf50633 changes

[Andy Green]

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Somebody in the thread at some point said:
| Hi,
|
|
| Here's a pcf50633 driver rewrite to use the MFD model. This has resulted
| in pretty large number of changes.

Some warnings came out:

drivers/mfd/pcf50633-core.c:119: warning: initialization from
incompatible pointer type

drivers/mfd/pcf50633-core.c: In function ‘pcf50633_suspend’:

drivers/mfd/pcf50633-core.c:266: warning: unused variable ‘ret’

drivers/mfd/pcf50633-mbc.c:88: warning: initialization from incompatible
pointer type

| 4. Emergency 8s shutdown has been temporarily removed from the driver
| as it certainly does not belong there.

On pcf50606 this was a hardware feature: it is on pcf50633 too but it's
disabled on our variant.  So it is arguable that reproducing it belongs
in the driver.

| 5. 'Suppress onkey events on resume' - must be a better way to handle
| this. Can't it be done from userspace ?

Dunno where the issue comes that it suppresses the notifcation for, if
it is opowerd controlled it should know it is coming from wake.

| 6. Resume reason - Removed currenty. More discussion required on format
| of sysfs attribute.

We have to capture the first resume interrupt source bytes in this
driver because they don't exist anywhere else.  They're currently
exposed into sysfs elsewhere, but that can be done here too and make the
resume reason parsing in two parts.

- -Andy
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