reset_source: migrate from reset_source_name to reset_source_to_string ...

Whether reset_source_name() returns the just set reset_source is
dependent on probe order and the priorities of prior reset sources
in relation to the current one. Make this more robust by using the new
reset_source_to_string.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mfd: stpmic1: use register define from header ...

A previous commit has copied over the upstream <linux/mfd/stpmic1.h>
header. Use it instead of replicating register definitions in the
MFD and watchdog cell driver. No functional change.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/watchdog'

mfd: stpmic1: use dev_get_regmap instead of priv member ...

When we call regmap_init, the regmap is associated with the device
supplied and can be queried with dev_get_regmap. This is more natural
than expecting cell drivers to cast dev->parent->priv. Do it.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

watchdog: remove wrong uses of timeout_cur ...

The barebox watchdog poller uses the struct watchdog.timeout_cur as
the timeout value to configure the watchdog with.

There's no need for the device driver to set this. I didn't know that
when I wrote the drivers, but I do now, hence this commit.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

watchdog: add support for STPMIC1 integrated watchdog ...

The driver adds support for the PMIC's watchdog, reset, poweroff
and reset reason query capabilities.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>