Lee Jones [Mon, 16 Sep 2013 16:02:00 +0000 (17:02 +0100)]
iio: pressure-core: st: Provide support for the Vdd power supply
The power to some of the sensors are controlled by regulators. In most
cases these are 'always on', but if not they will fail to work until
the regulator is enabled using the relevant APIs. This patch allows for
the Vdd power supply to be specified by either platform data or Device
Tree.
Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Merge tag 'iio-for-3.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First round of new drivers, functionality and cleanups for IIO in the 3.13 cycle
A number of new drivers and some new functionality + a lot of cleanups
all over IIO.
New Core Elements
1) New INT_TIME info_mask element for integration time, which may have
different effects on measurement noise and similar, than an amplifier
and hence is different from existing SCALE. Already existed in some
drivers as a custom attribute.
2) Introduce a iio_push_buffers_with_timestamp helper to cover the common
case of filling the last 64 bits of data to be passed to the buffer with
a timestamp. Applied to lots of drivers. Cuts down on repeated code and
moves a slightly fiddly bit of logic into a single location.
3) Introduce info_mask_[shared_by_dir/shared_by_all] elements to allow support
of elements such as sampling_frequency which is typically shared by all
input channels on a device. This reduces code and makes these controls
available from in kernel consumers of IIO devices.
New drivers
1) MCP3422/3/4 ADC
2) TSL4531 ambient light sensor
3) TCS3472/5 color light sensor
4) GP2AP020A00F ambient light / proximity sensor
5) LPS001WP support added to ST pressure sensor driver.
New driver functionality
1) ti_am335x_adc Add buffered sampling support.
This device has a hardware fifo that is fed directly into an IIO kfifo
buffer based on a watershed interrupt. Note this will act as an example
of how to handle this increasingly common type of device.
The only previous example - sca3000 - take a less than optimal approach
which is largely why it is still in staging.
A couple of little cleanups for that new functionality followed later.
Core cleanups:
1) MAINTAINERS - Sachin actually brought my email address up to date because
I said I'd do it and never got around to it :)
2) Assign buffer list elements as single element lists to simplify the
iio_buffer_is_active logic.
3) wake_up_interruptible_poll instead of wake_up_interruptible to only wake
up threads waiting for poll notifications.
4) Add O_CLOEXEC flag to anon_inode_get_fd call for IIO event interface.
5) Change iio_push_to_buffers to take a void * pointer so as to avoid some
annoying and unnecessary type casts.
6) iio_compute_scan_bytes incorrectly took a long rather than unsigned long.
7) Various minor tidy ups.
Driver cleanups (in no particular order)
1) Another set of devm_ allocations patches from Sachin Kamat.
2) tsl2x7x - 0 to NULL cleanup.
3) hmc5843 - fix missing > in MODULE_AUTHOR
4) Set of strict_strto* to kstrto* conversions.
5) mxs-lradc - fix ordering of resource removal to match creation
6) mxs-lradc - add MODULE_ALIAS
7) adc7606 - drop a work pending test duplicated in core functions.
8) hmc5843 - devm_ allocation patch
9) Series of redundant breaks removed.
10) ad2s1200 - pr_err -> dev_err
11) adjd_s311 - use INT_TIME
12) ST sensors - large set of cleanups from Lee Jones and removed restriction
to using only triggers provided by the st_sensors themselves from
Dennis Ciocca.
13) dummy and tmp006 provide sampling_frequency via info_mask_shared_by_all.
14) tcs3472 - fix incorrect buffer size and wrong device pointer used in
suspend / resume functions.
15) max1363 - use defaults for buffer setup ops as provided by the triggered
buffer helpers as they are the same as were specified in max1363 driver.
16) Trivial tidy ups in a number of other drivers.
Lee Jones [Mon, 16 Sep 2013 16:02:00 +0000 (17:02 +0100)]
iio: magn-core: st: Clean up error handling in probe()
Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.
Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lee Jones [Mon, 16 Sep 2013 16:02:00 +0000 (17:02 +0100)]
iio: gyro-core: st: Clean up error handling in probe()
Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.
Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lee Jones [Mon, 16 Sep 2013 16:02:00 +0000 (17:02 +0100)]
iio: accel-core: st: Clean up error handling in probe()
Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.
Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Drivers using software buffers often store the timestamp in their data buffer
before calling iio_push_to_buffers() with that data buffer. Storing the
timestamp in the buffer usually involves some ugly pointer arithmetic. This
patch adds a new helper function called iio_push_buffers_with_timestamp() which
is similar to iio_push_to_buffers but takes an additional timestamp parameter.
The function will help to hide to uglyness in one central place instead of
exposing it in every driver. If timestamps are enabled for the IIO device
iio_push_buffers_with_timestamp() will store the timestamp as the last element
in buffer, before passing the buffer on to iio_push_buffers(). The buffer needs
large enough to hold the timestamp in this case. If timestamps are disabled
iio_push_buffers_with_timestamp() will behave just like iio_push_buffers().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> Cc: Josh Wu <josh.wu@atmel.com> Cc: Denis Ciocca <denis.ciocca@gmail.com> Cc: Manuel Stahl <manuel.stahl@iis.fraunhofer.de> Cc: Ge Gao <ggao@invensense.com> Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jacek Anaszewski <j.anaszewski@samsung.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: ti_am335x_adc: Add continuous sampling support
Previously the driver had only one-shot reading functionality.
This patch adds continuous sampling support to the driver.
Continuous sampling starts when buffer is enabled.
HW IRQ wakes worker thread that pushes samples to userspace.
Sampling stops when buffer is disabled by userspace.
Patil Rachna (TI) laid the ground work for ADC HW register access.
Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs.
I fixed channel scanning so multiple ADC channels can be read
simultaneously and pushed to userspace.
Restructured the driver to fit IIO ABI.
And added INDIO_BUFFER_HARDWARE mode.
Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russ Dill <Russ.Dill@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Enable shared IRQ to allow ADC to share IRQ line from
parent MFD core. Only FIFO0 IRQs are for TSC and handled
on the TSC side.
Step mask would be updated from cached variable only previously.
In rare cases when both TSC and ADC are used, the cached
variable gets mixed up.
The step mask is written with the required mask every time.
Rachna Patil (TI) laid ground work for shared IRQ.
Andy Shevchenko [Fri, 13 Sep 2013 06:44:31 +0000 (09:44 +0300)]
staging: silicom: introduce bp_dev_get_idx_bsf() and use it
There are two places where duplicate code is located. Moreover, there is a
custom implementation of the sscanf() functionality. This patch makes code
quite simplier and cleaner.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: speakup: kobjects.c: Use correct values when changing voice.
When a new voice is selected, we set volume and pitch appropriate for
the voice. We need to use the numeric index corresponding to the
voice when indexing into the volume and pitch tables, rather than
the raw user input that was used to select the voice.
Note that using the raw input can also lead to an invalid memory read
in the case of invalid or malicious user input.
Signed-off-by: Christopher Brannon <chris@the-brannons.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Well, there is no need to use strcmp since we can make a test of similar semantic by using the var_id field of param.
I moved the test into the VAR_NUM:VAR_TIME case since VAR_STRING will never be "voice".
spk_xlate isn't used anymore (in line 628), then there is no difference between using cp and buf in VAR_STRING case.
Besides, buf is a const char and those changes remove one uneeded line.
I created the function spk_reset_default_value because it clarifies the code and allows code reusing.
This code uses a while construction that has an unconditional break. This part
of the code was restructured to use an if statement and the dead code was
removed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:56:10 +0000 (15:56 -0500)]
staging: r8188eu: Fix smatch warnings in core/rtw_recv.c
Smatch reports the following:
drivers/staging/rtl8188eu/core/rtw_recv.c:211 rtw_free_recvframe() warn: variable dereferenced before check 'precvframe' (see line 207)
drivers/staging/rtl8188eu/core/rtw_recv.c:1803 amsdu_to_msdu() warn: variable dereferenced before check 'sub_skb' (see line 1784)
The code was rearranged to eliminate the dereference before the check.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:56:09 +0000 (15:56 -0500)]
staging: r8188eu: Fix smatch warning in hal/HalPhyRf_8188e.c
Smatch reported the following warning:
drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c:1876 PHY_APCalibrate_8188E() info: ignoring unreachable code.
Once the unreachable code was removed, the entire routine was removed, which
led to the warning that phy_APCalibrate_8188E() was not used. It was also deleted
along with some unused defines.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:56:08 +0000 (15:56 -0500)]
staging: r8188eu: Fix smatch warning in core/rtw_wlan_util.c
A misplaced _func_exit_ macro leads to the following smatch warning:
drivers/staging/rtl8188eu/core/rtw_wlan_util.c:1105 rtw_check_bcn_info() info: ignoring unreachable code.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:56:01 +0000 (15:56 -0500)]
staging: r8188eu: Fix smatch warning in hal/usb_ops_linux.c
Smatch reports the following warning:
drivers/staging/rtl8188eu/hal/usb_ops_linux.c:614 usb_read_port() warn: variable dereferenced before check 'precvbuf' (see line 611)
Fixing this particular warning required some refactoring of the code.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:56:00 +0000 (15:56 -0500)]
staging: r8188eu: Fix smatch warning in os_dep/osdep_service.c
Smatch reports the following warning:
drivers/staging/rtl8188eu/os_dep/osdep_service.c:634 rtw_change_ifname() warn: variable dereferenced before check 'padapter' (see line 630)
The dereference in question is deferred until the validity of 'padapter' is verified.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:55:59 +0000 (15:55 -0500)]
staging: r8188eu: Fix a smatch warnings in core/rtw_recv.c
Smatch reports the following:
drivers/staging/rtl8188eu/os_dep/recv_linux.c:227 rtw_recv_indicatepkt() warn: variable dereferenced before check 'precv_frame' (see line 139)
The test in this location is removed and added in the free routine.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:55:54 +0000 (15:55 -0500)]
staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c
Smatch reports the following warning:
"drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:8328 mlme_evt_hdl()
error: buffer overflow 'wlanevents' 24 <= 24"
8321 /* checking if event code is valid */
8322 if (evt_code >= MAX_C2HEVT) {
^^^^^^^^^^^^^^^^^^^^^^
8323 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\nEvent Code(%d) mismatch!\n", evt_code));
8324 goto _abort_event_;
8325 }
8326
8327 /* checking if event size match the event parm size */
8328 if ((wlanevents[evt_code].parmsize != 0) &&
^^^^^^^^^^^^^^^^^^^^
8329 (wlanevents[evt_code].parmsize != evt_sz)) {
8330 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
8331 ("\nEvent(%d) Parm Size mismatch (%d vs %d)!\n",
8332 evt_code, wlanevents[evt_code].parmsize, evt_sz));
8333 goto _abort_event_;
8334 }
This warning results because the number of items in "enum rtw_c2h_event",
which determines the value of MAX_C2HEVT, is one more than in "struct wlanevents".
Adding an extra dummy event to the latter fixes the problem.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Wed, 4 Sep 2013 20:55:53 +0000 (15:55 -0500)]
staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.c
Smatch reports the following warning:
"drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2008
Hal_ReadPowerValueFromPROM_8188E()
error: buffer overflow 'pwrInfo24G->IndexBW40_Base[rfPath]' 5 <= 5"
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
2005 /* 2.4G default value */
2006 for (group = 0; group < MAX_CHNL_GROUP_24G; group++) {
2007 pwrInfo24G->IndexCCK_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX;
2008 pwrInfo24G->IndexBW40_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX;
The reason is that IndexCCK_Base[] has MAX_CHNL_GROUP_24G elements, but
IndexBW40_Base is smaller by 1. Make them both have MAX_CHNL_GROUP_24G
elements.
Reported by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jon Bernard [Tue, 10 Sep 2013 22:00:01 +0000 (18:00 -0400)]
Staging: fwserial: wrap a line that exceeds 80 characters
This is a patch to fwserial.c that wraps a line which previously exceeded the 80
character limit warning found by checkpatch.pl. This driver is now warning and
error free, according to checkpatch.pl
Signed-off-by: Jon Bernard <jbernard@tuxion.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed space prohibition before semicolon, particularly:
nvm.c:106: WARNING: space prohibited before semicolon
nvm.c:1098: WARNING: space prohibited before semicolon
nvm.c:1279: WARNING: space prohibited before semicolon
nvm.c:2834: WARNING: space prohibited before semicolon
nvm.c:3361: WARNING: space prohibited before semicolon
nvm.c:4453: WARNING: space prohibited before semicolon
Fixed a few of the coding style issues reported by checkpatch.pl
Signed-off-by: Faris de Haan <farisdehaan@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 9 Sep 2013 05:17:32 +0000 (14:17 +0900)]
staging: dgrp: Remove casting the return value which is a void pointer
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.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed some of the coding style issues reported by checkpatch.pl
Signed-off-by: Faris de Haan <farisdehaan@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 9 Sep 2013 05:19:48 +0000 (14:19 +0900)]
staging: dgap: Remove casting the return value which is a void pointer
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.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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