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2013-10-20iio:adc:max1363 support SMBus for 8-bit devicesVivien Didelot
The driver currently supports only I2C access. But supported devices with an accuracy of 8-bit are compatible with the SMBus byte access routines. This patch wraps the send and receive routines depending on the chip accuracy and fonctionnalities of its adapter. For instance, this allows us to use a MAX11603 on a ICH7 controller. This patch also simplifies the max1363_write_basic_config() routine to use the struct max1363_state fields directly. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-20iio: Correct description how to convert microtesla to gaussPeter Meerwald
this just fixes the comment; however, I'm not sure if the driver reports measurements correctly; the raw values are 0.3 uT / LSB; IIO is supposed to report magnetic fields in Gauss, so the scale should be around 1/300 (ignoring ASA) -- but value and scale are returned as VAL_INT Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-19staging: rtl8187se: checkpatch cleanupsTeodora Baluta
Fix the following checkpatch.pl errors: drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:890: "foo* bar" should be "foo *bar" drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:944: "foo* bar" should be "foo *bar" Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: rtl8187se: fix static sparse warningsTeodora Baluta
This patch fixes sparse warnings regarding functions that should be static in driver rtl8187se. Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: rtl8187se: add missing __iomem annotationTeodora Baluta
Fix the following type of sparse warnings: drivers/staging/rtl8187se/r8180_core.c:163:48: warning: incorrect type in argument 1 (different address spaces) drivers/staging/rtl8187se/r8180_core.c:163:48: expected void const volatile [noderef] <asn:2>*addr drivers/staging/rtl8187se/r8180_core.c:163:48: got unsigned char [usertype] * Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: rtl8187se: use gfp_t instead of intTeodora Baluta
Fix the following type of sparse warnings: drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17: warning: incorrect type in argument 2 (different base types) drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17: expected restricted gfp_t [usertype] flags drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17: got int [signed] gfp_mask Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: sb105x: Remove redundant null checkRashika Kheria
This patch fixes the following Sparse information in sb_pci_mp.c- ~/git/kernels/linux/drivers/staging/sb105x/sb_pci_mp.c:1813 mp_unregister_driver() info: redundant null check on drv->state calling kfree() Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: line6: replacing -EINVAL with retval in driver.cAshvini Varatharaj
drivers/staging/line6/driver.c:208 line6_send_raw_message_async_part() info: why not propagate 'retval' from usb_submit_urb() instead of (-22)? Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: line6: replacing -EINVAL with retvalAshvini Varatharaj
drivers/staging/line6/midi.c:147 send_midi_async() info: why not propagate 'retval' from usb_submit_urb() instead of (-22)? Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: speakup: replacing simple_strtoul with kstrtoulAshvini Varatharaj
Fix checkpatch warning: WARNING: simple_strtoul is obsolete, use kstrtoul instead Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: sep: Fix Smatch Warning in sep_crypto.cRashika Kheria
This patch fixes the following smatch warning- ~/git/kernels/linux/drivers/staging/sep/sep_crypto.c:1137 sep_crypto_block_data() info: why not propagate 'int_error' from sep_oddball_pages() instead of (-12)? ~/git/kernels/linux/drivers/staging/sep/sep_crypto.c:1152 sep_crypto_block_data() info: why not propagate 'int_error' from sep_oddball_pages() instead of (-12)? Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: vt6655: Fix C99 commenting style in michael.hArchana kumari
This patch fixes C99 commenting style in staging:vt6655:michael.h Signed-off-by: Archana kumari <archanakumari959@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: slicoss: Fix quoted string split across linesRashika Kheria
This patch fixes the following checkpatch.pl warning in slicoss.c- WARNING: quoted string split across lines Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: slicoss: Refactor code by introducing new function ↵Rashika Kheria
slic_interrupt_card_up() This patch fixes the following checkpatch.pl warning in slicoss.c: WARNING: Too many leading tabs - consider code refactoring Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: slicoss: Replace printk() with pr_debug() or dev_dbg() as requiredRashika Kheria
This patch fixes the following checkpatch.pl warning in slicoss.c: WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ... Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: slicoss: Removal of if check since debugfs_remove(NULL) is safeRashika Kheria
This patch fixes the following checkpatch.pl warning in slicoss.c: WARNING: debugfs_remove(NULL) is safe this check is probably not required Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: dgnc: avoiding buffer overflowAshvini Varatharaj
drivers/staging/dgnc/dgnc_neo.c:1969 neo_vpd() error: buffer overflow 'brd->vpd' 128 <= 128 drivers/staging/dgnc/dgnc_neo.c:1970 neo_vpd() warn: buffer overflow 'brd->vpd' 128 <= 130 drivers/staging/dgnc/dgnc_neo.c:1970 neo_vpd() warn: buffer overflow 'brd->vpd' 128 <= 130 Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: dgnc: removing the comparison 'board<0'Ashvini Varatharaj
Fix dgnc_mgmt_ioctl() warn: unsigned 'board' is never less than zero. Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: dgnc: braces {} are not necessary for single statement in dgnc_driver.cArchana kumari
Fixes "braces {} are not necessary for single statement blocks" warning in dgnc_driver.c Signed-off-by: Archana kumari <archanakumari959@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: dgnc:Removed unecessary error messages in dgnc_driver.cArchana kumari
Fixed removal of unecessary error messages in staging:dgnc:dgnc_driver.c Signed-off-by: Archana kumari <archanakumari959@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: wlags49_h2: Fixes the sparse warning in sta_h2.cArchana kumari
This patch fixes sparse warning "Using plain integer as NULL pointer" in sta_h2.c Signed-off-by: Archana kumari <archanakumari959@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: wlags49_h2: fixed space prohibited warnings in hcf.hArchana kumari
This patch fixes the following warnings in hcf.c: "space prohibited between function name and open parenthesis '(' " "space prohibited before that close parenthesis ')' ". Signed-off-by: Archana kumari <archanakumari959@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: comedi: s626: bitfield manipulation macros for CRA, CRB and setupIan Abbott
Some bits of the 'CRB' register have different functions when read or written, so add macros to define the read-only parts. Add macros to define the widths of the bitfields in the 'CRA' and 'CRB' registers and the standard encoder setup value. Add macros to construct and extract parts of the 'CRA' and 'CRB' register values and the standard encoder setup value, along with a couple of general helper macros for the above. Redefine the bitfield mask macros for 'CRA', 'CRB' and standard encoder setup using the above. 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>
2013-10-19staging: comedi: s626: add missing bits for 'CRB' registerIan Abbott
There are some bits in the 'CRB' register not defined in "s626.h". Three of these are read-only bits that overlay the write-only interrupt control bits. Another missing bit controls whether counter 'B' is cleared when counter 'A' overflows. Add the missing bit definitions for completeness. 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>
2013-10-19staging: comedi: s626: correct S626_CRAMSK_CLKPOL_A macro (unused)Ian Abbott
The counter 'A' clock polarity field in the 'CRA' register is only 1 bit wide, but the `S626_CRAMSK_CLKPOL_A` macro shows it as 2 bits wide, which would overlap with the counter 'A' interrupt source field. This is harmless as the macro isn't actually used yet, but correct it anyway as I want to use it! 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>
2013-10-19staging: comedi: s626: distinguish counter src from encoder modeIan Abbott
The macros `S626_CLKSRC_COUNTER`, `S626_CLKSRC_TIMER` and `S626_CLKSRC_EXTENDER` are used logically to set the operating mode of an encoder channel. `S626_CLKSRC_COUNTER` (0) is also used as a 2-bit physical value to set the counter source of an encoder channel to "encoder". Rename the macros to `S626_ENCMODE_COUNTER`, `S626_ENCMODE_TIMER` and `S626_ENCMODE_EXTENDER` and rename some other macros and (unused) functions relating to the encoder mode for consistency. Define new macros to specify the physical counter source values for the 'CRA' register and rename the corresponding bitshift and mask macros accordingly. The physical values for the counter source are: S626_CNTSRC_ENCODER = 0 // encoder S626_CNTSRC_DIGIN = 1 // digital inputs S626_CNTSRC_SYSCLK = 2 // system clock up S626_CNTSRC_SYSCLK_DOWN = 3 // system clock down Also use the `S626_CNTSRC_SYSCLK` value as a bitmask (bit 1) to indicate either of the system clock values, with the direction (bit 0) indicated separately in this case. 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>
2013-10-19staging: comedi: s626: correct a comment in s626_get_mode_b()Ian Abbott
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>
2013-10-19staging: comedi: s626: specify bitshift for encoder A clock sourceIan Abbott
When setting the clock source for one of the 'A' encoders to operate in "counter" mode in `s626_set_mode_a()`, bitshift the clock source value by `S626_CRABIT_CLKSRC_A` for consistency with the other modes. This has no effect on the value since `S626_CRABIT_CLKSRC_A` is 0. 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>
2013-10-19staging: comedi: s626: clock polarity and direction are the sameIan Abbott
When setting up an encoder channel, the setup value includes a polarity and direction, but these are the same bit of the setup value: S626_CLKPOL_POS = S626_CNTDIR_UP = 0 S626_CLKPOL_NEG = S626_CNTDIR_DOWN = 1 In the construction of the setup value, both the CLKPOL and the CNTDIR constants are shifted by the same amount `S626_BF_CLKPOL`. Only the following combinations are set up currently (this may change if user configuration of the encoder is implemented properly): (S626_CLKPOL_POS << S626_BF_CLKPOL) (S626_CLKPOL_POS << S626_BF_CLKPOL) | (S626_CNTDIR_UP << S626_BF_CLKPOL) (S626_CLKPOL_POS << S626_BF_CLKPOL) | (S626_CNTDIR_DOWN << S626_BF_CLKPOL) The first two are used in "counter" mode and is equivalent to: (S626_CLKPOL_POS << S626_BF_CLKPOL) The last one is used in "timer" mode and is equivalent to: (S626_CNTDIR_DOWN << S626_BF_CLKPOL) Use the shorter equivalents. The comments in "s626.h" indicate that the 'CLKPOL' constants make more sense for the "counter" mode (when the encoders operate as up/down counters) and the 'CNTDIR' constants make more sense for the "timer" mode. 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>
2013-10-19staging: comedi: rtd520: use normal bitfield functionsIan Abbott
The `unsigned char chan_is_bipolar[]` member of `struct rtd_private` is used with some macros as a packed array of 1-bit values that indicate whether the corresponding entries in the hardware's "channel-gain" table have been set to a bipolar (1) or unipolar (0) range, as the raw samples from the hardware need to be cooked differently in each case. Replace the declaration of the member with a standard Linux bitfield using `DECLARE_BITFIELD()`, and replace the home-grown macros used access the bitfield with the standard Linux non-atomic bitop functions, `__set_bit()`, `__clear_bit()` and `test_bit()`. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: ft1000: fixed two coding style issuesAldo Iljazi
Fixed two coding style issues, specifically: ft1000_proc.c:35: ERROR: space required before the open parenthesis '(' ft1000_proc.c:42: ERROR: space required before the open parenthesis '(' Signed-off-by: Aldo Iljazi <me@aldo.io> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: xillybus: Use dev_* functions instead of pr_* in xillybus_coreEli Billauer
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Eli Billauer <eli.billauer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: xillybus: Use dev_* functions instead of pr_* in xillybus_ofEli Billauer
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Eli Billauer <eli.billauer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: xillybus: Use dev_* functions instead of pr_* in xillybus_pcieEli Billauer
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Eli Billauer <eli.billauer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging: xillybus: Remember device pointer for use with dev_* functionsEli Billauer
This is necessary so that xillybus_core uses the correct device pointer for PCIe devices in diagnostic message calls (dev_err, dev_warn and dev_info) Signed-off-by: Eli Billauer <eli.billauer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Remove unnecessary spaces in router_proc.cLisa Nguyen
Remove unnecessary spaces between function names and open parentheses in router_proc.c to meet kernel coding style. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Fix static initialization error in router_proc.cLisa Nguyen
Fixed the static initialization error generated by checkpatch.pl to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Reformat pointer variable in lib-move.cLisa Nguyen
Reformat a pointer variable in lib-move.c to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Remove () from return statements in lib-move.cLisa Nguyen
Remove unnecessary parentheses from return statements to eliminate errors generated by checkpatch.pl and meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Adjust lines to meet 80 column limit in lib-move.cLisa Nguyen
Fixed lines to not exceed more than 80 columns per line to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Move open braces to previous lines in lib-move.cLisa Nguyen
Move open braces to previous lines in lib-move.c to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet: Remove unnecessary whitespace in lib-move.cLisa Nguyen
Remove unnecessary whitespace around open parentheses in lib-move.c to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet/selftest: Remove unnecessary spaces in brw_test.cLisa Nguyen
Remove spaces between function names and open parentheses to eliminate warnings generated by checkpatch.pl and meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19staging/lustre/lnet/selftest: Fix trailing statements in brw_test.cLisa Nguyen
Fix trailing statement errors generated by checkpatch.pl in brw_test.c to meet kernel coding standards. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Merge 3.12-rc6 into staging-next.Greg Kroah-Hartman
We want these fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Linux 3.12-rc6Linus Torvalds
2013-10-19staging: rtl8192u: fix sparse warning, make a function staticTeodora Baluta
Fix the following sparse warning: drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:240:22: warning: symbol 'ieee80211_alloc_txb' was not declared. Should it be static? Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: speakup: removing jiffies comparison in speakup_apollo.cAshvini Varatharaj
Fix checkpatch warning: WARNING: Comparing jiffies is almost always wrong; prefer time_after, time_before and friends Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Staging: speakup: removing jiffies comparison using time_after_eq()Ashvini Varatharaj
Fix checkpatch warning: Comparing jiffies is almost always wrong; prefer time_after, time_before and friends Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-19Merge tag 'iio-for-3.12d' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Fourth round of IIO new drivers, functionality and cleanups for the 3.13 cycle. New Drivers * cm36651 combined RGB light and proximity sensor. Core improvements * Some more fixes and cleanups related to buffers. These include the second half of a series which went is as fixes. The basis for delaying until the next merge window is that some are too invasive for this late in a cycle and others only effect code paths current unused in the mainline tree. In this case we have: * protecting against concurrent userspace access * fixing a memory leak if a device goes away * avoiding always reallocating the buffer whether or not it has changed (a bug fix, but one with no functional changes other than a small speed improvement.) * Add reference counting for buffers to ensure they hang around if open from userspace or in kernel when the device is forcefully removed. * Return -ENODEV for buffer access operations when the device has gone away. * Add proper locking for iio_update_buffers (currently we only have one buffer per device in mainline, but an input bridge driver is under development which would make this bug 'real'.) * Wake up anyone waiting on a buffer if the device is unregistered. A subsequent read will fail, notifying userspace that the device is no longer there rather than having it wait possibly for ever. * Move the iio_sw_preenable functionality into the core. This avoids drivers having to 'know' about how the buffers are implemented and is called by almost all drivers anyway. Those that don't call it are not harmed by it being called. * New registration approach for information (i.e. sysfs attributes) about events. Much more generic and now similar to how the equivalent is handled for channel information. The events infrastructure had been left behind by other changes so this brings it back in line. * Using the new events registration approach, add a hysterisis event_info element and apply this to those drivers with this property. * A little unitialized variable bug in the generic_buffer.c example. * Factor out the code for freeing lists of IIO Device attributes to avoid some repitition. Driver cleanups * At91 driver gains touch screen support and some related fixes. * Follow up series of patches removing the now redundant iio_sw_buffer_preenable calls. * Lots of conversions to the new event registration methods. * Another round of hmc5843 cleanups as that driver moves towards graduating from staging. * Make some SoC drivers buildable if COMPILE_TEST is used. Follow up fixes for a few bits and bobs that revealed. * Add explicit includes of linux/of.h to those drivers making us of linux/of.h
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