Merge tag 'iio-for-3.15c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Third IIO new drivers and cleanups series for 3.15.

New driver
* Xilinx XADC driver -  This has been ready for a while but was awaiting
  a device tree ack (or as it turns out 3+ weeks).

Cleanup
* Drop some unreachable code from mag3110 highlighted by smatch.

Fix
* vf610 - introduced this cycle - put a possible negative error code
  into an unsigned long. Another smatch find - this one promoted by
  guilt that Dan was busy fixing all our messups.

The function rtl8180_wmm_param_update contained two blocks of code which
were nearly identical. This patch combines those two blocks into a
single function, to reduce code duplication, and do fix some
checkpatch.pl warnings about excessively long lines due to the large
number of indents that were needed for the original blocks of code.
Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The definition of the driver's ChannelPlan array produced a large number
of checkpatch.pl errors. This patch fixes all of them by adding spaces
and wrapping the resulting overly-long lines.
Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

A section of code in the function rtl8180_tx was indented for no reason,
causing numerous checkpatch.pl warnings.
Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Axel Rasmussen <axel.rasmussen1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation for the set of s-Par drivers
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The virthba module provides access to a shared SCSI host bus adapter
and one or more disk devices, by proxying SCSI commands between the
guest and the service partition that owns the shared SCSI adapter,
using a channel between the guest and the service partition. The disks
that appear on the shared bus are defined by the s-Par configuration
and enforced by the service partition, while the guest driver handles
sending commands and handling responses. Each disk is shared as a
whole to a guest. Sharing the bus adapter in this way provides
resiliency; should the device encounter an error, only the service
partition is rebooted, and the device is reinitialized. This allows
guests to continue running and to recover from the error.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The virtpci module handles the bus functions for virthba, and virtnic.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The visoruislib module is a support library, used to handle requests
from virtpci.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The visorchannelstub module provides support routines for storing and
retrieving data from a channel.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The visorchipset module receives device creation and destruction
events from the Command service partition of s-Par, as well as
controlling registration of shared device drivers with the s-Par
driver core. The events received are used to populate other s-Par
modules with their assigned shared devices. Visorchipset is required
for shared device drivers to function properly. Visorchipset also
stores information for handling dump disk device creation during
kdump.

In operation, the visorchipset module processes device creation and
destruction messages sent by s-Par's Command service partition through
a channel. These messages result in creation (or destruction) of each
virtual bus and virtual device. Each bus and device is also associated
with a communication channel, which is used to communicate with one or
more IO service partitions to perform device IO on behalf of the
guest.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The visorchannel module is a support library that abstracts reading
and writing a channel in memory.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The visorutil module is a support library required by all other s-Par
driver modules. Among its features it abstracts reading, writing, and
manipulating a block of memory.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* Replaced all the spin lock/unlock wrappers from oz_polling_lock_bh()
and oz_polllin_unlock_bh() with spin_lock_bh(&g_polling_lock) and
spin_unlock_bh(&g_polling_lock).Completely erased the wrappers defination
and declaration.
* declared g_polling_lock as global variable in header file and added comments to it.
Module builded successfully with sparse without warnings.
Signed-off-by: Surendra Patil <surendra.tux@gmail.com>
Acked-by: Rupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ethernet-mem was missing its own include file, causing sparse to complain
about undeclared global functions.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Make global_register_lock static to eliminate a sparse warning.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Make cvm_oct_free_tx_skbs static to eliminate a sparse warning.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Make num_packet_buffers static to eliminate a sparse warning.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

We don't have such Kconfig option, so the current code is dead and
the documentation is wrong. Users can adjust this setting by using
module parameter or kernel command line, so we can delete this code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Change the generic MODULE_DESCRIPTION text to something more specific
for this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Tidy up the multi-line comments to follow the CodingStyle.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The hardware has three digital output channels. Add the subdevice
support for these channels.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For aesthetics, rename this function so ist has namespace associated
with the driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The comedi core expects the (*insn_read) functions to read insn->n
values. Fix this function to work like the core expects.

The counters are actually 25-bit (24-bits + 1 sign bit). Instead of munging
the data when the sign bit is set just return the full 25-bit value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The comedi core expects the (*insn_write) functions to write insn->n
values. Fix this function to work like the core expects.

The counters are actually 25-bit (24-bits + 1 sign bit). The comedi core
validates that all the data is in range before calling the (*insn_write),
fix the subdevice maxdata so that the sign bit can actually be changed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For aesthetics, add some whitespace to the subdevice init.

This driver does not support async commands so remove the dev->read_subdev
initialization.

Remove the commented out SDF_COMMON from the subdevice subev_flags.

Add the subdevice range_table initialization.

For aesthetics, rename the (*insn_{read,write}) functions so they have
namespace associated with the driver.

Remove the unnecessary comments about the (*insn_{read,write}) functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Define the register map for the board and remove the magic values.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This define is only used in the pci_device_id table and does not add
any significant clarity to the code. Remove the define and just open
code the value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Resolve sparse "warning: symbol '...' was not declared.  Should it be static?"
messages.  Includes "comet_tables.h", which contains extern declarations for
the variables defined in comet_tables.c.
Signed-off-by: Shaun Laing <shaun@xresource.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clean up checkpatch.pl warnings:
 WARNING: Line length over 80 characters
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clean up checkpatch.pl warnings:
 WARNING: please no spaces at the start of a line in
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clean up checkpatch.pl warnings in linux.c:
 WARNING: space prohibited between function name
 and open parenthesis '('
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clean up checkpatch.pl error:
 ERROR: that open brace { should be on the previous line
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

checkpatch.pl error:
 ERROR: do not use assignment in if condition
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

clean up checkpatch.pl warnings:
 WARNING: Line length over 80 characters
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>