Commit Graph

8 Commits

Author SHA1 Message Date
Conrad Meyer
e2e050c8ef Extract eventfilter declarations to sys/_eventfilter.h
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.

EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).

As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions.  The remainder of the patch addresses
adding appropriate includes to fix those files.

LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).

No functional change (intended).  Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed.  __FreeBSD_version has been bumped.
2019-05-20 00:38:23 +00:00
Emmanuel Vadot
3de3007594 arm: allwinner: Add pnp info to aw_rsb and compile it as module too
MFC after:	1 month
2019-04-25 18:43:01 +00:00
Emmanuel Vadot
cd2b868b5d allwinner: Add support for P2WI in RSB driver
Push-Pull Two Wire interface is a almost compatible iic like bus used
in sun6i SoC. It's only use is to communicate with the power management IC.

Reviewed by:	jmcneill
MFC after:	1 week
Relnotes:	yes
2016-10-24 20:33:42 +00:00
Jared McNeill
221a9d6dd6 Attach RSB early. Children of RSB may provide resources necessary for
other devices such as interrupts, GPIOs, and regulators.
2016-07-11 20:02:51 +00:00
Michal Meloun
dac935533b EXTRES: Add OF node as argument to all <foo>_get_by_ofw_<bar>() functions.
In some cases, the driver must handle given properties located in
specific OF subnode. Instead of creating duplicate set of function, add
'node' as argument to existing functions, defaulting it to device OF node.

MFC after: 3 weeks
2016-07-10 18:28:15 +00:00
Jared McNeill
6a94069a5e Reduce complexity of RSB by always using polling mode. Unfortunately
gpiobus methods can be called with non-sleepable locks held.

Reviewed by:	mmel
2016-05-15 16:43:47 +00:00
Jared McNeill
37cc9a031b Allow RSB to be used from interrupt handlers.
The driver uses polling mode if cold or !THREAD_CAN_SLEEP() and now
implements the bus_* interface.
2016-05-15 15:52:34 +00:00
Jared McNeill
4b9a54a9fc Add a driver for the Allwinner Reduced Serial Bus (RSB).
The RSB controller speaks a simplified two wire protocol at speeds up to
20MHz. It is used on sun8i and sun9i family SoCs to communicate with
power management ICs.

RSB isn't really I2C or SMBus, but the driver exposes an iicbus interface
to simplify power management IC drivers (which may need to support both
RSB and I2C connectivity).
2016-05-14 23:27:54 +00:00