Merge tag 'iio-for-3.13b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new functionality for IIO in the 3.13 cycle - with bug fixes for first set.

This is a small, mainly to get a couple of compile bug related fixes into
the tree ASAP.

New device support:
1) Add ad5446 dac support to the ad5641 driver.

New functionality and cleanups:
1) Optional power supply regulators for the st pressure sensors drivers using
   the new optional regulator interface.
2) Bit of tidying up of naming in the sysfs trigger.

Bug fixes from the previous series:
1) Missing select IIO_BUFFER for ti_am335x_adc
2) Drop a bonus bracket in iio-trig-bfin-timmer

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

This patch fixes the following compile errors for the iio-trig-bfin-timer
driver:
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c: In function ‘iio_bfin_tmr_frequency_store’:
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:121: error: invalid storage class for function ‘iio_bfin_tmr_frequency_show’
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:118: warning: ISO C90 forbids mixed declarations and code
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:135: error: initializer element is not constant
	...

The issue was introduced in commit e5e26dd5 ("staging: iio: replace
strict_strto*() with kstrto*()") by leaving an excess opening bracket.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

This avoids build problems such iio_push_to_buffers* not being defined.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>

Introduce a couple defines for the common 8254 oscillator base values
used in the comedi drivers and remove the custom defines and open
coded values.

Change the i8253_cascade_ns_to_timer_2div() calls in the drivers to
the more generic i8253_cascade_ns_to_timer(). They are identical due
to the #define in the 8253.h header.

Remove the extra mask by TRIG_ROUND_MASK of the 'round_mode' parameter
to i8253_cascade_ns_to_timer(). That function already handles the mask.

Tidy up all the calls to i8253_cascade_ns_to_timer().
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>

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Move rts/cts pointers to relevant vnt_tx_data_head position.

Remove old rts_cts pointers in calling functions.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Create double pointer to pass back vnt_mic_hdr address position
of relevant structure if need_mic is more than 0. Otherwise it
is NULL.

This replaces the pMICHDR void pointer with struct vnt_mic_hdr
and assignments in the calling functions.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Create struct vnt_tx_mic_hdr for with union vnt_tx_data_head
for mic mode.

Create union vnt_tx for mic and non mic mode.

Attach vnt_rrv_time_* to relevant tx_head.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Attach union vnt_tx_head to structure vnt_tx_buffer replacing pointer
pvRrvTime.

In s_vGenerateTxParameter the relevant struct vnt_rrv_time_*
structure is attached to the vnt_tx_head.

The NULL check is now pFifoHead.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Rename these functions so they have 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>

As pointed out by Fengguang Wu, the calls to dt2801_readdata() return the
data read thru a pointer (the address of a local variable) passed as a
parameter. If this local variable is not initialized it produces a warning
during the build of the form:

drivers/staging/comedi/drivers/dt2801.c: In function 'dt2801_ai_insn_read':
drivers/staging/comedi/drivers/dt2801.c:273:14: warning: 'hb' is used
      uninitialized in this function [-Wuninitialized]

Fix these warning by making sure the local variables are initialized.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

As pointed out by the kbuild test robot, the ni_atmio driver includes
ni_mio_common.c which uses the helper functions in the comedi_fc module.

Select the COMEDI_FC module when COMEDI_NI_ATMIO is enabled to fix the
following build error:

ERROR: "cfc_write_array_to_buffer" [drivers/staging/comedi/drivers/ni_atmio.ko] undefined!
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The asynchronous command support for the AI subdevice is still missing
one crucial element, it doesn't actually put the acquired data in the
buffer so it can be read()!  Call `comedi_buf_put()` from the interrupt
handler to perform this function.  A return value of 0 from
`comedi_buf_put()` means there was no room in the buffer so set the
`COMEDI_CB_OVERFLOW` and `COMEDI_CB_ERROR` event flags in that case.
Otherwise, set the `COMEDI_CB_BLOCK` and `COMEDI_CB_EOS` event flags to
mark the end of a "scan" (the scan length is currently fixed at one
sample in this driver).
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>

The interrupt handler used to support asynchronous commands on the AI
subdevice currently marks the command as finished (setting the "end of
acquisition" event flag and returning to software-triggered acquisition
mode) once it has decremented `devpriv->ntrig` to 0.  However, nothing
sets `devpriv->ntrig`, as noted in the "FIXME" comment.

If the `stop_src` setting of the asynchronous command is `TRIG_COUNT`,
then the `stop_arg` setting indicates the number of scans to be
performed in the overall acquisition.  (Otherwise, `stop_src` will be
`TRIG_NONE`, meaning the acquisition should run indefinitely until
cancelled.)  When starting the acquisition in `pcl711_ai_cmd()`, set
`devpriv->ntrig` to the number of scans to be performed (`stop_arg`) if
`stop_src` is `TRIG_COUNT`.  In the interrupt handler, don't decrement
`devpriv->ntrig` or handle end of acquision unless `stop_src` is
`TRIG_COUNT`.

Also check for an empty acquisition in `pcl711_ai_cmd()`, i.e. one where
`stop_src` is `TRIG_COUNT` and `stop_arg` is zero and just mark end of
acquisition without actually setting up the interrupts in this case.

Also change the type of the `ntrig` member of the private data structure
to `unsigned int` as it should be (same type as `stop_arg`).
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>

Comedi subdevices that support asynchronous commands should have a
'cancel' handler to stop an in-progress command.  Add such a handler to
the pcl711 driver module.  I think merely setting the acquisition mode
to "software-triggered" would be sufficient, but also clear the
interrupt status for good luck.
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>

'boardtypes' is pretty generic, rename this static const variable.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: 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>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The ACL-6126 board supports an external interrupt signal on pin 17 of
its I/O connector (CN3). Add a new subdevice to this driver to support
asynchronous commands with this input.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For aesthetics, rearrange the boardinfo struct definition a bit to give
it a bit of logical order.

Also, rename the 'n_aochan' member to it has better visual association
with the other analog output members.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The *_SIZE defines are only used to initialize the 'io_range' members in
the boardinfo. Remove the defines and just open code the values.

For aesthetics, change the type of the 'io_range' and rename it to better
match the 'len' parameter to comedi_request_region().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

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

For aesthetics, declare the comedi_lrange tables with one entry per line.

Since the range data in the boardinfo is only for the analog outputs,
rename the variables to make this clearer.

Use ARRAY_SIZE to initialize the 'ao_num_ranges' member instead of open
coding the value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The PCL-727 board uses different register offsets for the digital input and
output ports. Instead of having all the register offsets in the boardinfo,
replace them with a simple bit-field flag, 'is_pcl727'. Use that flag in the
(*insn_bits) functions to determine what registers need to be used.

To save a bit of space, change the 'have_dio' flag in the boardinfo to a
bit-field.

For aesthetics, rename and tidy up the register map defines.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For aesthetics, add some whitespace to the subdevice initialization.

Only allocate, and initialize, the digital input and output subdevices
if the boardinfo indicates that they exist on the board.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The analog output channels use jumpers on the board to individually set
the range used. This driver uses the configuration options passed to the
(*attach) function to setup the analog output subdevice range_table_list
for each channel.

The configuration options should be 'it->options[2 + i]' for each channel 'i'
not '...[2 + 1]' for each channel. Fix the error and move the code so that
the range_table_list is setup before the subdevice is initialized.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Tidy up and enable the interrupt support code for the external trigger
source interrupt on the ACL-6126 board.

The interrupt handler is currently just a stub function. Once the async
command support is added this function will be completed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove all the '= 0' entries in the boardinfo. They will default to 0.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Tidy up this function to follow the normal form for analog output
read back functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For aesthetics, rename the function to help with greps.

The offset binary value from the core should be saved for read back.
Move the saving of the value in the private data so it occurs before
the value is possibly munged for bipolar outputs.

Use the comedi_offset_munge() helper to munge the offset binary value
to two's complement for bipolar outputs.

According to the November 2011 users manual, the write order must be
MSB them LSB. Update the comment.

Modify the register map defines to handle the channel offset calculation.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

These flags are set in the private data during the attach to indicate
if the range for each channel is bipolar or unipolar. Use the helper
function conedi_chan_range_is_bipolar() to determine this by checking
the range_table_list directly.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Introduce two helper functions to check if a subdevice range_table_list
for a given channel/range is bipolar or unipolar.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Convert the boardinfo declaration to C99 format to make it less error
prone and easier to maintain.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

CC: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct spelling typo in rtl8188eu/core
Signed-off-by: Masanari Iida <standby24x7@gmail.com>

# Please enter the commit message for your changes. Lines starting
# with '#' will be kept; you may remove them yourself if you want to.
# An empty message aborts the commit.
# On branch rtl8188eu-typo2
# Changes to be committed:
#	modified:   drivers/staging/rtl8188eu/core/rtw_ap.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_br_ext.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_cmd.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_efuse.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_ieee80211.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_mlme.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_security.c
#
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct spelling typo in rtl8188eu/include
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct spelling typo in rtl8188eu/os_dep
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct spelling typo in rtl8188eu/hal
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>