staging: comedi: daqboard2000: use request_firmware()

This driver requires loading a firmware file for the cpld. This
is currently being done by passing the firmware data using the
COMEDI_DEVCONFIG ioctl through the attach() hook in the driver.
This does not work for auto-configured PCI devices due to the
firmware loading options not being set in the comedi_devconfig
parameter passed to the driver.

Change the driver so it gets the firmware using request_firmware()
and ignore any firmware options passed in the comedi_devconfig.

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>

staging: comedi: daqboard2000: remove this_board and devpriv macros

These macros rely on a local variable having a specific name.

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>

staging: comedi: daqboard2000: remove struct daqboard2000_hw

In this driver the PCI bar 2 resource is being ioremap'ed to a
void * in the private data. This void * is then being cast to a
struct daqboard2000_hw * that defines all the registers used by
the driver.

This is causing a number of sparse warnings similar to:

  warning: incorrect type in argument 1 (different address space)
     expected void const volatile [noderef] <asn:2>*addr
     got void *

Change the type in the private data to void __iomem * to correctly
store the ioremap'ed address.

Remove struct daqboard2000_hw and change the contents to #define's
for the register memory map.

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>

staging: comedi: comedi_fops: cast the cmd->chanlist to the correct address space

Rename 'chanlist_saver' to 'user_chanlist' to avoid confusion that
it's actually a __user *.

The chanlist pointer in comedi_cmd is still a user space pointer when
the comedi_cmd is copied with copy_from_user() in do_cmd_ioctl() and
do_cmdtest_ioctl(). This pointer needs to be cast when it is saved in
user_chanlist in order to preserve its address space.

The copy_from_user() call to copy the chanlist to the kernel space
comedi_command requires the second parameter to be a __user pointer.
Use the correctly cast user_chanlist instead of cmd->chanlist.

Before the comedi_cmd is copied back to user space, the saved
user_chanlist pointer is restored. Cast the user_chanlist again so
that the address space matches the comedi_cmd.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi_fops: rename user_cmd in do_cmdtest_ioctl

This local variable is used to hold the comedi_cmd that is passed
to the kernel as the argument to the COMEDI_CMDTEST ioctl. Its filled
in with a copy_from_user() call. The name 'user_cmd' is a bit
confusing since it's actually kernel data.

Rename the local variable to 'cmd' to avoid the confusion.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi_fops: rename user_cmd in do_cmd_ioctl

This local variable is used to hold the comedi_cmd that is passed
to the kernel as the argument to the COMEDI_CMD ioctl. Its filled
in with a copy_from_user() call. The name 'user_cmd' is a bit
confusing since it's actually kernel data.

Rename the local variable to 'cmd' to avoid the confusion.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi_fops: rename the __user *cmd param in do_cmd_ioctl

This parameter is actually the unsigned long arg passed in the ioctl.
comedi_unlocked_ioctl() casts it as a (struct comedi_cmd __user *)
when calling do_cmd_ioctl(). Rename the variable to keep this clear.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi.h: remove __user tag from chanlist

The 'chanlist' is passed to the kernel from user space with the
COMEDI_CMD and COMEDI_CMDTEST ioctls. The do_cmd_ioctl() and
do_cmdtest_ioctl() functions in comedi_fops.c copy this data
to/from user space to kernel space correctly.

Unfortunately, this data is copied back into a struct comedi_cmd
so when the cmd is passed down to the drivers they still see the
pointer as __user data. This results is a number of sparse errors
such as:

  warning: dereference of noderef expression

  warning: incorrect type in argument 2 (different address spaces)
     expected void const *<noident>
     got unsigned int [noderef] <asn:1>*chanlist

  warning: incorrect type in argument 3 (different address spaces)
     expected unsigned int *chanlist
     got unsigned int [noderef] <asn:1>*chanlist

  warning: incorrect type in assignment (different address spaces)
     expected unsigned int *ai_chanlist
     got unsigned int [noderef] <asn:1>*chanlist

The two functions in comedi_fops are the only ones that need the
__user tag. Remove the tag so that all the drivers see the chanlist
pointer in the correct address space.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi.h: remove the extra indents

The extra indents in this file cause git diff to not know the
section where changes are being made. This results in diff outputs
like:

@@ -365,7 +365,10 @@

instead of the more informational:

@@ -365,6 +365,7 @@ struct comedi_cmd {

Remove all the extra indents.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wlan-ng: Fix dereference before NULL check

Smatch is warning about a dereference before we check for NULL.
This patch moves the dereference to after the NULL check.

Smatch warning:
drivers/staging/wlan-ng/cfg80211.c:345 prism2_scan() warn:
variable dereferenced before check 'request' (see line 332)

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ozwpan: compare pointer to NULL rather than 0

Generated by: scripts/coccinelle/null/badzero.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: bcm: Properly format braces in cntrl_SignalingInterface.h

This patch cuddles braces as reported
by checkpatch.pl.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: bcm: Properly format comments in cntrl_SignalingInterface.h

This patch properly formats comments
as reported by checkpatch.pl.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: bcm: Fix all white space issues in cntrl_SignalingInterface.h

This patch fixes all white space issues
as reported by checkpatch.pl.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.c: checkpatch cleanups: C99 comments

remove code or change to traditional comments

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.c: checkpatch cleanup: fix returns

Fix up all the returns to cannonical form, and an ifdef removal

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: remove CONFIG_EXPERIMENTAL dependancies

As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: ced1401: fix copy_from/to_user warning messages

Properly check the return value of copy_from/to_user() and handle any
errors that might happen.

This removes a bunch of compiler warnings.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging ced1401: cleanup coding style issues.

A basic Lindent run on the .c files, clean up the .h file by hand.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: ced1401: add driver to the build

This adds the ced1401 driver to the build system.

Yes, there are a lot of warning messages, but it does compile, so it
should be good to get going.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: ced1401: add TODO file

This adds a first cut of a TODO file to get this driver out of the
staging directory.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: ced1401: usb1401: fix build errors.

This fixes up the usb1401.c file to remove the usage of err() (which is
gone), and the two-argument kmap_atomic() call, and the compat_ioctl
pointer warning.

The code now builds properly, there are lots of warnings still, but it's
a start.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: add ced1401 USB driver

This was imported from the
http://pub.ist.ac.at/~schloegl/src/ced1401/.git git repo at the request
of Alois.  The driver originally came from Cambridge Electronic Design
Ltd and was authored by Greg P Smith and others, but Alois did the
maintance work to get it into a semi-building state and pushed to get it
into the main kernel tree here.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: jr3_pci: quiet "Using plain interger as NULL pointer" noise

Quiet some sparse warnings about:

warning: Using plain integer as NULL pointer

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>

staging: comedi: pcmuio: pointers should be cleared with NULL

Pointer variables should be cleared with NULL on 0. This quiets
some sparse warnings about:

warning: Using plain integer as NULL pointer

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>

staging: comedi: pcmmio: remove kernel messages about IRQ

These messages are just added noise.

They also cause some sparse warnings due to MAX_ASICS evaluating
as 1. This causes the local variable 'irq' to be 'unsigned int irq[1]',
which makes the 'irq[1]' access invalid.

Just remove the messages.

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>

staging: comedi: mite: local symbols should not be exported

The function mite_fifo_size() is only referenced in this file. Make
it static.

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>

staging: comedi: ni_mio_cs: local symbols should not be exported

The symbol ni_mio_cs_driver is only referenced in this file. Make
it static.

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>

staging: comedi: ni_labpc_cs: local symbols should not be exported

The symbol labpc_cs_driver and the functions labpc_init_module()
and labpc_exit_module() are only referenced in this file. Make
them static.

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>

staging: comedi: ni_daq_dio24: local symbols should not be exported

The symbol dio24_cs_driver is only referenced in this file. Make
it static.

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>

staging: comedi: ni_pcidio: local functions should not be exported

The function ni_pcidio_event() is only referenced in this file.
Make it static.

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>

staging: comedi: ni_660x: local functions should not be exported

The function ni_660x_release_mite_channel() is only referenced in
this file. Make it static.

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>

staging: comedi: jr3_pci: local functions should not be exported

The function read_idm_word() is only referenced in this file.
Make it static.

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>

staging: comedi: jr3_pci.h: remove vect_bits_t and warning_bits_t

Leave the enum's but remove their names. The names are not used
anywhere in 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>

staging: comedi: ni_mio_common: make internal functions static

The functions ni_release_gpct_mite_channel() and ni_prime_channelgain_list()
are only referenced in this file. Make it static.

The function ni_release_gpct_mite_channel() is also only called
when PCIDMA is enabled. Move the #ifdef to quite a sparse warning
about the function not being used.

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>

staging: comedi: comedi_fops: make internal function static

The function do_become_nonbusy() is only referenced in this file.
Make it static.

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>

staging: sm7xxfb: remove smtc_VRAMBaseAddress

This patch erases smtc_VRAMBaseAddress variable.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: rename pFramebufferPhysical to mmio_base

This patch renames pFramebufferPhysical name to mmio_base.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: rename some smtcfb_info fields

This patch improves naming style and comments on smtcfb_info fields.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: annotate iomem pointers

This patch annotates iomem pointers.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: cleanup on smtc_alloc_fb_info

This patch improves code legibility after last changes.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: clean smtcfb_fix's id initialization

Setting up smtcfb_fix's id happens through smtc_alloc_fb_info. It adds
complexity and unnecesary code.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm7xxfb: clean fb_fix_screeninfo and fb_var_screeninfo initialization

Part of fb_fix_screeninfo and fb_var_screeninfo initialization happens
in smtc_alloc_fb_info. It duplicates code while hiding the real
functionality of smtc_alloc_fb_info. This patch groups initialization
together.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: "wlags49_h25" Fix typos.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: csr: wait for the exec in usermodehelper

The order of wait values has been changed by commit 9d944ef32e.
Fix the wait parameter and start to use a define instead of
"magic number".

Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fix csr printk format warning

Fix printk format warning on i386/X86_32 by using 't' for ptrdiff_t.
Also builds cleanly on x86_64.

drivers/staging/csr/csr_wifi_hip_udi.c: In function 'unifi_print_status':
drivers/staging/csr/csr_wifi_hip_udi.c:151:27: warning: format '%ld' expects type 'long int', but argument 5 has type 'int'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'iio-for-v3.7d' of git://git./linux/kernel/git/jic23/iio into staging-next

IIO new drivers, features and rework for the 3.7 cycle, 4th set.

Here we have

1) a set cleaning up and moving the ad7476 driver out of staging.
Support for a number of additional parts is also added to that driver.

2) cleanups from various people for the in kernel interface code as that
is getting more an more real use and hence people are picking up on
minor issues that made it through review.  Also a related useful set
of utility functions to avoid duplicate code for converting IIO
representations to other forms.

3) a new fractional type for our read_raw / write_raw functions.
  This allows avoiding loss of accuracy via the in kernel interfaces in some
  cases as well as being rather convenient for a lot of range -> scale
  conversions.

4) New AD5755 DAC driver.

5) Some Blackfin timer trigger improvements including hardware pulse control
for device triggering.

6) Support for the ad7091r in the ad7476 driver.

iio: ad7476: Add support for the ad7091r

Add support for the ad7091r 12 bit ADC to the ad7476 driver. Although the
ad7091r is not really related to any of the other devices supported by this
driver, luckily for us there are not so many ways (which are not totally insane)
how sampling a single channel ADC via SPI can be implemented and support for the
ad7091r can be added to the driver with just a few adjustments.

The ad7091r requires an external "conversion start" pulse to start a sample
conversion. After the conversion has finished the result can be read via SPI. We
depend on a IIO trigger to generate this signal, as a result only sampling in
buffered mode and not in manual mode is available.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging:iio:trigger:bfintmr Add output support

Some converters require an external signal to start the conversion. This patch
adds support to the bfintmr trigger driver to generate such a signal.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging:iio:trigger:bfintmr: Only enable timer when necessary

This patch hooks up the set_trigger_state callback for the blackfin timer
trigger driver and only enables the timer when a trigger consumer requests it to
be enabled. There really is no reason to keep the timer running and generate
interrupts if nobody is listening to them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging:iio:trigger:bfintmr: Avoid divide by zero

If the timer frequency has not been configured yet get_gptimer_period() will
return 0. Handle this case instead of blindly dividing by the returned value.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging:iio:hwmon bridge: Use iio_read_channel_processed

Use the iio_read_channel_processed function to read the sample value in the
proper unit instead of using iio_read_channel_raw and iio_read_channel_scale and
doing the unit conversion manually.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio:inkern: Add function to read the processed value

Add a function to read a processed value from a channel. The function will first
attempt to read the IIO_CHAN_INFO_PROCESSED attribute. If that fails it will
read the IIO_CHAN_INFO_RAW attribute and convert the result from a raw value to
a processed value.

The patch also introduces a function to convert raw value to a processed value
and exports it, in case a user needs or wants to do the conversion by itself.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: consumer.h: Fix kernel doc incosistency

For the iio_read_channel_raw and iio_read_channel_scale the kerneldoc comment
refers to an argument called "channel", while the argument is called "chan" in
the function signature. This leads to the following warnings from kerneldoc:

Warning(include/linux/iio/consumer.h:71): No description found for parameter 'chan'
Warning(include/linux/iio/consumer.h:71): Excess function parameter 'channel' description in 'iio_read_channel_raw'
Warning(include/linux/iio/consumer.h:109): No description found for parameter 'chan'
Warning(include/linux/iio/consumer.h:109): Excess function parameter 'channel' description in 'iio_read_channel_scale'

This patch fixes the warnings by naming them consistently.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio:dac: Add ad5755 driver

This patch adds support for the AD5755, AD5755-1, AD5757, AD5735, AD5737 16 and
14 bit quad-channel DACs. The AD5757/AD5737 only have current outputs, but
for the AD5755/AD5757 each of the outputs can be configured to either be a
voltage or a current output. We only allow to configure this at device probe
time since usually this needs to match the external circuitry and should not be
changed on the fly.

A few trivial formatting changes on merge.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: inkern: add error case in iio_channel_get()

 The datasheet name is defined in the IIO driver.
 On the other hand, the adc_channel_label is configured in
 the platform side.
 If the datasheet name is not matched with any adc_channel_label,
 the iio_channel_get() should be returned as error for preventing
 invalid channel data access.

 This can be handled either way.
 (a) checking null data when using it : in the xxx_read_raw()
 or
 (b) error returns when the channel is requested : this patch

 The IIO consumer can't use the channel with invalid channel spec.
 Therefore case (b) is more reasonable.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

staging/gdm72xx: usb_boot: replace firmware upgrade API in em_download

Replace firmware upgrade API in em_download_image().

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Cc: Paul Stewart <pstew@chromium.org>
Cc: Ben Chan <benchan@chromium.org>
Cc: Sage Ahn <syahn@gctsemi.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/rts_pstor: Use pr_ or dev_ printks in rtsx.c

fixed some checkpatch warnings.
-WARNING: Prefer pr_info(... to printk(KERN_INFO, ...
-WARNING: Prefer pr_err(... to printk(KERN_ERR, ...
-WARNING: quoted string split across lines

And added pr_fmt.

Signed-off-by: Toshiaki Yamane <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

last of the unstylistic pointers cleaned up

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

pointer style cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

more checkpatch cleanups of pointers.

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

More pointer style cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

More notation fixes

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch.pl cleanup: pretty pointers

first chunk, straighten up the pointer notation

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch cleanup: fix includes

checkpatch fixups

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch cleanup: header file whitespace

Finish trailing spaces in libbp_sd.h

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: checkpatch cleanup: header file whitespace

Whack all the line ending spaces so checkpatch.pl is happy.

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bypass.h: checkpatch whitespace

Remove trailing spaces, second chunk

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bypass.h: checkpatch whitespace

Remove trailing spaces, first chunk

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

twelfth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

eleventh chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

tenth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

ninth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

eighth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

seventh chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

sixth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

fifth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

fourth chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

third chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

second chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: bp_mod.h: checkpatch tab and space cleanup

first chunk of bp_mod.h's cleanup

Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: speakup_soft: Fix reading of init string

softsynth_read() reads a character at a time from the init string;
when it finds the null terminator it sets the initialized flag but
then repeats the last character.

Additionally, if the read() buffer is not big enough for the init
string, the next read() will start reading from the beginning again.
So the caller may never progress to reading anything else.

Replace the simple initialized flag with the current position in
the init string, carried over between calls.  Switch to reading
real data once this reaches the null terminator.

(This assumes that the length of the init string can't change, which
seems to be the case.  Really, the string and position belong together
in a per-file private struct.)

Tested-by: Samuel Thibault <sthibault@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: silicom: fix a comparing proc_dir_entry pointer against 0

we should be using the NULL macro, not 0 to compare against
a pointer value, and also remove braces around the single
if conditional after the create_proc_entry

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ft1000: replace c99 comments with c88

replace some of the c99 comments to the structures with c88 comment style
no code change is done here.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: use kstrtoint_from_user()

The main problem with the hand rolled code was that there weren't any
range checks so you could corrupt memory by writing too much data to
the proc file.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: silicom: add some range checks to proc functions

If you tried to cat more than 255 characters (the last character is for
the terminator) to these proc files then it would corrupt kernel memory.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: use module_init()/module_exit()

Rename the standard `init_module()` and `cleanup_module()` functions and
make them static.  Use `module_init()` and `module_exit()` to mark the
renamed functions as the module init and exit functions.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: remove list of devices

All the drivers that use the "mite" module now allocate a `struct
mite_struct` dynamically instead of searching the `mite_devices` list
populated during initialization of the "mite" module.

Remove the list of devices and the function that prints available NI
devices on the list (`mite_list_devices()`).  The list node and `used`
members in `struct mite_struct` are now redundant, so remove them.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_pcimio: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_pcidio: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_labpc: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_670x: remove spurious free_irq() call

This driver's comedi `detach` handler (`ni_670x_detach()`) calls
`free_irq()` but the driver doesn't call `request_irq()` anywhere.
Remove the spurious call.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_670x: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_660x: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_65xx: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_6527: use mite_alloc()

Allocate `struct mite_device` dynamically instead of searching for
one on the `mite_devices` list constructed by the "mite" module.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: add mite_alloc() and mite_free()

Add `mite_alloc()` to allow drivers to allocate and initialize a `struct
mite_struct` dynamically and export it.  Add `mite_free()`, which is
currently just an inline wrapper for `kfree()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: replace printk() calls

Replace the `printk()` calls in this module with `dev_...()` calls where
possible or `pr_...()` calls otherwise.

Rework the normally ifdefed out (by the `DEBUG_MITE` macro)
`mite_dump_regs()` to dump register offsets instead of remapped
addresses.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: use ilog2()

The static inline functions `MITE_IODWBSR_1_WSIZE_bits()` and `CR_RL()`
in "mite.h" work out a base-2 logarithm using a `while` loop.  Change
them to use `ilog2()`.  Also change `CR_RL()` to clamp the maximum value
instead of printing an error.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: mite: export mite_alloc_ring() and mite_free_ring()

The `mite_alloc_ring()` and `mite_free_ring()` static inline functions
in "mite.h" are reasonably large.  Transfer them to "mite.c" and export
them.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>