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2021-02-15thermal: qcom: add support for adc-tm5 PMIC thermal monitorDmitry Baryshkov1-0/+3
Add support for Thermal Monitoring part of PMIC5. This part is closely coupled with ADC, using it's channels directly. ADC-TM support generating interrupts on ADC value crossing low or high voltage bounds, which is used to support thermal trip points. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210205000118.493610-3-dmitry.baryshkov@linaro.org
2021-01-16iio: adc: qcom-vadc-common: rewrite vadc7 die temp calculationDmitry Baryshkov1-5/+0
qcom_vadc7_scale_hw_calib_die_temp() uses a table format different from the rest of volt/temp conversion functions in this file. Also the conversion functions results in non-monothonic values conversion, which seems wrong. Rewrite qcom_vadc7_scale_hw_calib_die_temp() to use qcom_vadc_map_voltage_temp() directly, like the rest of conversion functions do. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20201204025509.1075506-10-dmitry.baryshkov@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16iio: adc: move vadc_map_pt from header to the source fileDmitry Baryshkov1-11/+0
struct vadc_map_pt is not used outside of qcom-vadc-common.c, so move it there from the global header file. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20201204025509.1075506-9-dmitry.baryshkov@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16iio: provide of_iio_channel_get_by_name() and devm_ version itDmitry Baryshkov1-0/+36
There might be cases when the IIO channel is attached to the device subnode instead of being attached to the main device node. Allow drivers to query IIO channels by using device tree nodes. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20201204025509.1075506-8-dmitry.baryshkov@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16iio: adc: move qcom-vadc-common.h to include dirDmitry Baryshkov1-0/+187
qcom-vadc-common module will be used by ADC thermal monitoring driver, so move it to global include dir. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20201204025509.1075506-6-dmitry.baryshkov@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-12-03iio:trigger: rename try_reenable() to reenable() plus return voidJonathan Cameron1-2/+2
As we no longer support a try again if we cannot reenable the trigger rename the function to reflect this. Also we don't do anything with the value returned so stop it returning anything. For the few drivers that didn't already print an error message in this patch, add such a print. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Christian Oder <me@myself5.de> Cc: Eugen Hristev <eugen.hristev@microchip.com> Cc: Nishant Malpani <nish.malpani25@gmail.com> Cc: Daniel Baluta <daniel.baluta@oss.nxp.com> Link: https://lore.kernel.org/r/20200920132548.196452-3-jic23@kernel.org
2020-12-03iio: ad_sigma_delta: Don't put SPI transfer buffer on the stackLars-Peter Clausen1-1/+5
Use a heap allocated memory for the SPI transfer buffer. Using stack memory can corrupt stack memory when using DMA on some systems. This change moves the buffer from the stack of the trigger handler call to the heap of the buffer of the state struct. The size increases takes into account the alignment for the timestamp, which is 8 bytes. The 'data' buffer is split into 'tx_buf' and 'rx_buf', to make a clearer separation of which part of the buffer should be used for TX & RX. Fixes: af3008485ea03 ("iio:adc: Add common code for ADI Sigma Delta devices") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20201124123807.19717-1-alexandru.ardelean@analog.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-11-24Merge tag 'iio-for-5.11a' of ↵Greg Kroah-Hartman5-11/+25
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new device support, features and cleanups for IIO in the 5.11 cycle Usual mixed bag of new drivers / device support + cleanups etc with the addition of a fairly big set of yaml conversions. Txt to yaml format conversions. In some cases dropped separate binding and moved to trivial devices (drop). Listed by manufacturer - dht11 temperature(drop) - adi,ad2s90 adi,ad5272 adi,ad5592r adi,ad5758 adi,ad5933 adi,ad7303 adi,adis16480 adi,adf4350 - ams,as3935 - asahi-kasei,ak8974 - atmel,sama5d2-adc - avago,apds9300 avago,apds9960 - bosch,bma180 bosch,bmc150_magn bosch,bme680 bosch,bmg180 - brcm,iproc-static-adc - capella,cm36651 - domintech,dmard06(drop) - fsl,mag3110 fsl,mma8452 fsl,vf610-dac - hoperf,hp03 - honeywell,hmc5843 - kionix,kxcjk1013 - maxim,ds1803(drop) maxim,ds4424 maxim,max30100 maxim,max30102 maxim,max31856 maxim,max31855k maxim,max44009 maxim,max5481 maxim,max5821 - meas,htu21(drop) meas,ms5367(drop) meas,ms5611 meas,tsys01(drop) - mediatek,mt2701-auxadc - melexis,mlx90614 melexis,mlx90632 - memsic,mmc35240(drop) - microchip,mcp41010 microchip,mcp4131 microchip,mcp4725 - murata,zap2326 - nxp,fxas21002c nxp,lpc1850-dac - pni,rm3100 - qcom,pm8018-adc qcom,spmi-iadc - renesas,isl29501 renesas,rcar-gyroadc - samsung,sensorhub-rinato - sensiron,sgp30 - sentech,sx9500 - sharp,gp2ap020a00f - st,hts221 st,lsm6dsx st,st-sensors(many!) st,uvis25 st,vcl53l0x st,vl6180 - ti,adc084s021 ti,ads124s08 ti,dac5571 ti,dac7311 ti,dac7512 ti,dac7612 ti,hdc1000(drop) ti,palmas-gpadc ti,opt3001 ti,tmp07 - upisemi,us51882 - vishay,vcnl4035 - x-powers,axp209 New device support * adi,ad5685 - Add support for AD5338R dual output 10-bit DAC - Add DT-binding doc. * mediatek,mt6360 - New driver for this SoC ADC with bindings and using new channel label support in the IIO core. * st,lsm6dsx - Add support for LSM6DST Core: * Add "label" to device channels, provided via a new core callback. Including DT docs for when that is the source, and ABI docs. * Add devm_iio_triggered_buffer_setup_ext to take extra attributes. * dmaengine, unwrap use of iio_buffer_set_attrs() * Drop iio_buffer_set_attrs() * Centralize ioctl call handling. Later fix to ensure -EINVAL returned if no handler has run. * Fix an issue with IIO_VAL_FRACTIONAL and negative values - doesn't affect any known existing drivers, but will impact a future one. * kernel-doc fix in trigger.h * file-ops ordering cleanup Features * semtech,sx9310 - Add control of hardware gain, proximity thresholds, hysteresis and debounce. - Increase what information on hardware configuration can be provided via DT. Cleanup and minor features * adi,ad5685 - Add of_match_table * adi,ad7292 - Drop pointless spi_set_drvdata() call * adi,ad7298 - Drop platform data and tidy up external reference config. * adi,ad7303 - Drop platform data handling as unused. * adi,ad7768 - Add new label attribute for channels provided from dt. * adi,ad7887 - devm_ usage in probe simplifying remove and error handling. * adi,adis16201 - Drop pointless spi_set_drvdata() call * adi,adis16209 - Drop pointless spi_set_drvdata() call * adi,adis16240 - White space fixup * adi,adxl372 - use new devm_iio_triggered-buffer_setup_ext() * amlogic,meson-saradc - Drop pointless semicolon. * amstaos,tsl2563 - Put back i2c_device_id table as needed for greybus probing. * atmel,at91_adc - Use of_device_get_match_data() instead of open coding it. - Constify some driver data - Add KCONFIG dep on CONFIG_OF and drop of_match_ptr() - Drop platform data as mostly dead code. - Tidy up reference voltage logic * atmel-sama5d2 - Drop a pointless semicolon - Merge buffer and trigger init into a separate function - Use new devm_iio_triggered_buff_setup_ext() * avago,apds9960 - Drop a pointless semicolon * bosch,bmc150 - Drop a pointless semicolon - Use new iio_triggered_buffer_setup_ext() * bosch,bmp280 - Drop a pointless semicolon * fsl,mma8452 - Constification * (google),cros_ec - Use new devm_iio_triggered_buffer_setup_ext() * hid-sensors - Use new iio_triggered_buffer_setup_ext() * ingenic,adc - Drop a pointless semicolon * invensense,icm426xx - Fix MAINTAINERS entry missing : * mediatek,mt6577_audxac - Add binding doc for mt8516 compatible with mt8173 * motorola,cpcap-adc - Fix an implicit fallthrough marking that clang needs to avoid warning. * samsung,exynos-adc - Stop relying on users counter form input device in ISR. * st,lsm6dsx - add vdd and vddio regulator control (including binding update) * st,stm32-adc - Tidy up code for dma transfers. - Adapt clock duty cycle for proper functioning. Note no known problems with existing boards. * st,vl53l0x-i2c - Put back i2c_device_id table as needed for greybus probing. * vishay,vcnl4035 - Put back i2c_device_id table as needed for greybus probing. * tag 'iio-for-5.11a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (126 commits) dt-bindings:iio:adc:x-powers,axp209-adc: txt to yaml conversion dt-bindings:iio:adc:renesas,rcar-gyroadc: txt to yaml conversion. dt-bindings:iio:adc:atmel,sama5d2-adc: txt to yaml conversion dt-bindings:iio:magnetometer:pni,rm3100: txt to yaml conversion. dt-bindings:iio:magnetometer:honeywell,hmc5843: txt to yaml format conversion dt-bindings:iio:magnetometer:bosch,bmc150_magn: txt to yaml conversion. dt-bindings:iio:magnetometer:asahi-kasei,ak8974: txt to yaml format conversion dt-bindings:iio:magnetometer:fsl,mag3110: txt to yaml conversion dt-bindings:iio:light:st,vl6180: txt to yaml format conversion. dt-bindings:iio:light:vishay,vcnl4035: txt to yaml conversion dt-bindings:iio:light:st,uvis25: txt to yaml conversion for this UV sensor dt-bindings:iio:light:upisemi,us51882: txt to yaml conversion. dt-bindings:iio:light:ti,opt3001: txt to yaml conversion dt-bindings:iio:light:maxim,max44009: txt to yaml conversion. dt-bindings:iio:light:sharp,gp2ap020a00f: txt to yaml conversion. dt-bindings:iio:light:capella,cm36651: txt to yaml conversion. dt-bindings:iio:light:avago,apds9960: txt to yaml conversion dt-bindings:iio:light:avago,apds9300: txt to yaml conversion. dt-bindings:iio:imu:st,lsm6dsx: txt to yaml conversion dt-bindings:iio:imu:adi,adis16480: txt to yaml conversion ...
2020-11-21iio: buffer: remove iio_buffer_set_attrs() helperAlexandru Ardelean1-3/+0
The iio_buffer_set_attrs() is no longer used in the drivers, so it can be removed now. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200929125949.69934-10-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-11-21iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variantsAlexandru Ardelean1-7/+16
This change adds a parameter to the {devm_}iio_triggered_buffer_setup() functions to assign the extra sysfs buffer attributes that are typically assigned via iio_buffer_set_attrs(). The functions also get renamed to iio_triggered_buffer_setup_ext() & devm_iio_triggered_buffer_setup_ext(). For backwards compatibility the old {devm_}iio_triggered_buffer_setup() functions are now macros wrap the new (renamed) functions with NULL for the buffer attrs. The aim is to remove iio_buffer_set_attrs(), so in the iio_triggered_buffer_setup_ext() function the attributes are assigned directly to 'buffer->attrs'. When adding multiple IIO buffers per IIO device, it can be pretty cumbersome to first allocate a set of buffers, then to dig them out of IIO to assign extra attributes (with iio_buffer_set_attrs()). Naturally, the best way would be to provide them at allocation time, which is what this change does. At this moment, buffers allocated with {devm_}iio_triggered_buffer_setup() are the only ones in mainline IIO to call iio_buffer_set_attrs(). Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200929125949.69934-4-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-11-14iio: core: centralize ioctl() calls to the main chardevAlexandru Ardelean1-0/+2
The aim of this is to improve a bit the organization of ioctl() calls in IIO core. Currently the chardev is split across IIO core sub-modules/files. The main chardev has to be able to handle ioctl() calls, and if we need to add buffer ioctl() calls, this would complicate things. The 'industrialio-core.c' file will provide a 'iio_device_ioctl()' which will iterate over a list of ioctls registered with the IIO device. These can be event ioctl() or buffer ioctl() calls, or something else. Each ioctl() handler will have to return a IIO_IOCTL_UNHANDLED code (which is positive 1), if the ioctl() did not handle the call in any. This eliminates any potential ambiguities about negative error codes, which should fail the call altogether. If any ioctl() returns 0, it was considered that it was serviced successfully and the loop will exit. This change also moves the handling of the IIO_GET_EVENT_FD_IOCTL command inside 'industrialio-event.c', where this is better suited. This patch is a combination of 2 other patches from an older series: Patch 1: iio: core: add simple centralized mechanism for ioctl() handlers Link: https://lore.kernel.org/linux-iio/20200427131100.50845-6-alexandru.ardelean@analog.com/ Patch 2: iio: core: use new common ioctl() mechanism Link: https://lore.kernel.org/linux-iio/20200427131100.50845-7-alexandru.ardelean@analog.com/ Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20200924084155.99406-1-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-11-08iio: core: Add optional symbolic label to a device channelCristian Pop1-0/+6
If a label is defined in the device tree for this channel add that to the channel specific attributes. This is useful for userspace to be able to identify an individual channel. Signed-off-by: Cristian Pop <cristian.pop@analog.com> Link: https://lore.kernel.org/r/20200928090959.88842-1-cristian.pop@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-10-31iio: fix a kernel-doc markupMauro Carvalho Chehab1-1/+1
A function has a different name between their prototype and its kernel-doc markup. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/46622c3bdcffb76e79719f0fe5011c2952960b32.1603469755.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-10-15Merge tag 'staging-5.10-rc1' of ↵Linus Torvalds6-52/+15
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver updates from Greg KH: "Here is the large set of staging and IIO driver updates for 5.10-rc1. Included in here are: - new IIO drivers - new IIO driver frameworks - various IIO driver fixes and updates - IIO device tree conversions to yaml - so many minor staging driver coding style cleanups - most cdev driver moved out of staging - no staging drivers added or removed Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (476 commits) staging: comedi: check validity of wMaxPacketSize of usb endpoints found staging: wfx: improve robustness of wfx_get_hw_rate() staging: wfx: drop unicode characters from strings staging: wfx: gpiod_get_value() can return an error staging: wfx: increase robustness of hif_generic_confirm() staging: wfx: wfx_init_common() returns NULL on error staging: wfx: standardize the error when vif does not exist staging: wfx: check memory allocation staging: wfx: improve error handling of hif_join() staging: dpaa2-switch: add a dpaa2_switch prefix to all functions in ethsw.c staging: dpaa2-switch: add a dpaa2_switch_ prefix to all functions in ethsw-ethtool.c staging: rtl8188eu: Fix long lines dt-bindings: staging: wfx: silabs,wfx yaml conversion staging: wfx: update copyrights dates staging: wfx: fix QoS priority for slow buses staging: wfx: fix BA sessions for older firmwares staging: wfx: remove remaining code of 'secure link' feature staging: wfx: fix handling of MMIC error staging: vchiq: Fix list_for_each exit tests staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t ...
2020-09-29iio: cros_ec: unify hw fifo attributes into the core fileAlexandru Ardelean1-2/+2
The intent here is to minimize the use of iio_buffer_set_attrs(). Since we are planning to add support for multiple IIO buffers per IIO device, the issue has to do with: 1. Accessing 'indio_dev->buffer' directly (as is done with 'iio_buffer_set_attrs(indio_dev->buffer, <attrs>)'). 2. The way that the buffer attributes would get handled or expanded when there are more buffers per IIO device. Current a sysfs kobj_type expands into a 'device' object that expands into an 'iio_dev' object. We will need to change this, so that the sysfs attributes for IIO buffers expand into IIO buffers at some point. Right now, the current IIO framework works fine for the '1 IIO device == 1 IIO buffer' case (that is now). Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Guenter Roeck <groeck@chromium.org> Link: https://lore.kernel.org/r/20200923130339.997902-1-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-29iio: buffer-dmaengine: remove non managed alloc/freeAlexandru Ardelean1-4/+0
This is to encourage the use of devm_iio_dmaengine_buffer_alloc(). Currently the managed version of the DMAEngine buffer alloc is the only function used from this part of the framework. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20200923121810.944075-1-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-21iio: adis. Drop adis_burst structNuno Sá1-17/+0
As there are no users anymore of this structure, it can be safely removed. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20200917155223.218500-5-nuno.sa@analog.com
2020-09-21iio: adis: Move burst mode into adis_dataNuno Sá1-0/+9
Add burst mode variables in the per device specific data structure. As some drivers support multiple devices with different burst sizes it makes sense this data to be in `adis_data`. While moving the variables, there are two main differences: 1. The `en`variable is dropped. If a device supports burst mode, it will just use it as it will has better performance for almost all real use cases. 2. Replace `extra_len` by `burst_len`. Users should now explicitly define the length of the burst buffer as it is typically constant. This also allows to remove the following line from the library: ``` /* All but the timestamp channel */ burst_length = (indio_dev->num_channels - 1) * sizeof(u16); ``` The library should not assume that a timestamp channel is defined. Moreover, most parts also include some diagnostic data, crc, etc.. in the burst buffer that needed to be included in an `extra_len` variable which is not that nice. On top of this, some devices already start to have some 32bit size channels ... This patch is also a move to completely drop the `struct adis_burst` from the library. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20200917155223.218500-2-nuno.sa@analog.com
2020-09-21iio: Add __printf() attributes to various allocation functionsJonathan Cameron2-2/+3
A partial set of these was added to IIO a long time back. This fills in some gaps in coverage highlighted by building with W=1 Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200913132115.800131-3-jic23@kernel.org
2020-09-16iio: adis: Drop non Managed device functionsNuno Sá1-27/+0
Drop `adis_setup_buffer_and_trigger()`. All users were updated to use the devm version of this function. This avoids having almost the same code repeated. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20200915120258.161587-11-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-13iio: temperature: mlx90632: Interface to change object ambient temperatureCrt Mori1-0/+1
Since object temperature might be different than the sensor temperature the infrared sensors should provide an interface to inject ambient temperature. This was in past done via write to ambient temperature interface (in_temp_ambient_raw), but I think most people did not know about it. This solution introduces a new iio type of the CALIBAMBIENT which is hopefully more descriptive and more explicit about the purpose and capabilities of the sensors. Signed-off-by: Crt Mori <cmo@melexis.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200906210231.383976-1-cmo@melexis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-11iio: iio.h: fix a warning at the kernel-doc markupMauro Carvalho Chehab1-1/+1
There's a warning at iio.h kernel-doc markup: ./include/linux/iio/iio.h:644: WARNING: Unknown target name: "devm". Because it is using {devm_}foo notation. Well, this is not a valid kernel-doc notation. Also, it prevents creating hyperlinks to other documentation functions. So, replace it to a better notation. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/d8f2275c438c459ede4e6fba03ce719cc6ad898b.1599660067.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-13iio: core: remove iio_priv_to_dev() helperAlexandru Ardelean1-6/+0
All users of this helper have been updated to not use it. Remove it now, so that we don't need to move it when creating the iio_dev_opaque structure. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-07iio: core: move event interface on the opaque structAlexandru Ardelean2-3/+2
Same as with other private fields, this moves the event interface reference to the opaque IIO device object, to be invisible to drivers. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-07iio: core: move iio_dev's buffer_list to the private iio device objectAlexandru Ardelean2-2/+2
This change moves the 'buffer_list' away from the public IIO device object into the private part. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-07iio: core: move channel list & group to private iio device objectAlexandru Ardelean2-5/+5
This change bit straightforward and simple, since the 'channel_attr_list' & 'chan_attr_group' fields are only used in 'industrialio-core.c'. This change moves to the private IIO device object Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-07iio: core: move debugfs data on the private iio dev infoAlexandru Ardelean2-12/+11
This change moves all iio_dev debugfs fields to the iio_dev_priv object. It's not the biggest advantage yet (to the whole thing of abstractization) but it's a start. The iio_get_debugfs_dentry() function (which is moved in industrialio-core.c) needs to also be guarded against the CONFIG_DEBUG_FS symbol, when it isn't defined. We do want to keep the inline definition in the iio.h header, so that the compiler can better infer when to compile out debugfs code that is related to the IIO debugfs directory. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-07iio: core: wrap IIO device into an iio_dev_opaque objectAlexandru Ardelean2-1/+22
There are plenty of bad designs we want to discourage or not have to review manually usually about accessing private (marked as [INTERN]) fields of 'struct iio_dev'. Sometimes users copy drivers that are not always the best examples. A better idea is to hide those fields into the framework. For 'struct iio_dev' this is a 'struct iio_dev_opaque' which wraps a public 'struct iio_dev' object. In the next series, some fields will be moved to this new struct, each with it's own rework. This rework will not be complete-able for a while, as many fields need some drivers to be reworked in order to finalize them (e.g. 'indio_dev->mlock'). But some fields can already be moved, and in time, all of them may get there (in the 'struct iio_dev_opaque' object). Since a lot of drivers also call 'iio_priv()', in order to preserve fast-paths (where this matters), the public iio_dev object will have a 'priv' field that will have the pointer to the private information already computed. The reference returned by this field should be guaranteed to be cacheline aligned. The opaque parts will be moved into the 'include/linux/iio/iio-opaque.h' header. Should the hidden information be required for some debugging or some special needs, it can be made available via this header. Otherwise, only the IIO core files should include this file. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-20iio: Move attach/detach of the poll func to the coreLars-Peter Clausen1-7/+0
All devices using a triggered buffer need to attach and detach the trigger to the device in order to properly work. Instead of doing this in each and every driver by hand move this into the core. At this point in time, all drivers should have been resolved to attach/detach the poll-function in the same order. This patch removes all explicit calls of iio_triggered_buffer_postenable() & iio_triggered_buffer_predisable() in all drivers, since the core handles now the pollfunc attach/detach. The more peculiar change is for the 'at91-sama5d2_adc' driver, since it's not immediately obvious that removing the hooks doesn't break anything. Eugen was able to test on at91-sama5d2-adc driver, sama5d2-xplained board. All seems to be fine. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Tested-by: Eugen Hristev <eugen.hristev@microchip.com> #for at91-sama5d2-adc Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: core: add iio_device_set_parent() helperAlexandru Ardelean1-0/+20
By default, the device allocation will also assign a parent device to the IIO device object. In cases where devm_iio_device_alloc() is used, sometimes the parent device must be different than the device used to manage the allocation. In that case, this helper should be used to change the parent, hence the requirement to call this between allocation & registration. This pattern/requirement is not very common in the IIO space, and it may be cleaned up later. But until then, assigning the parent manually between allocation & registration is slightly easier. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: core: pass parent device as parameter during allocationAlexandru Ardelean1-2/+2
The change passes the parent device to the iio_device_alloc() call. This also updates the devm_iio_device_alloc() call to consider the device object as the parent device by default. Having it passed like this, should ensure that any IIO device object already has a device object as parent, allowing for neater control, like passing the 'indio_dev' object for other stuff [like buffers/triggers/etc], and potentially creating iiom_xxx(indio_dev) functions. With this patch, only the 'drivers/platform/x86/toshiba_acpi.c' needs an update to pass the parent object as a parameter. In the next patch all devm_iio_device_alloc() calls will be handled. Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: make iio_device_get_drvdata take a const struct iio_dev *.Jonathan Cameron1-1/+1
As this just calls dev_get_drvdata underneath which is happy with a const struct device * we should change and avoid potentially casting away a const in order to then put it back again. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: cros_ec: Reapply range at resumeGwendal Grignou1-1/+10
EC does not currently preserve range across sensor reinit. If sensor is powered down at suspend, it will default to the EC default range at resume, not the range set by the host. Save range if modified, and apply at resume. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-05-15Merge tag 'iio-for-5.8b' of ↵Greg Kroah-Hartman1-2/+85
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second set of new device support, cleanups and features for IIO in the 5.8 cycle Usual mixed back but with a few subsystem wide or device type wide cleanups. New device support * adis16475 - New driver supporting adis16470, adis16475, adis16477, adis16465, adis16467, adis16500, adis16505 and adis16507. Includes some rework of the adis library to simplify using it for this new driver. * ak8974 - Add support for Alps hscdt008a. ID only. Related patches add support for scale. * atlas-sensor - Add support for RTD-SM OEM temperature sensor. * cm32181 - Add support for CM3218 including support for SMBUS alert via ACPI resources. * ltc2632 - Add support for ltc2634-12/10/8 DACS including handling per device type numbers of channels. Major Features * cm32181 - ACPI bindings including parsing CPM0 and CPM1 custom ACPI tables. Includes minor tidy ups and fixes. * vcnl4000 - Add event support - Add buffered data capture support - Add control of sampling frequency Cleanups and minor fixes. * core - Trivial rework of iio_device_alloc to use an early return and improve readability. - Precursors to addition of multiple buffer support. So far minor refactoring. * subsystem wide - Use get_unaligned_be24 slightly improve readability over open coding it. * adis drivers - Use iio_get_debugfs_dentry access function. * bh1780, cm32181, cm3232, gp2ap02a00f, opt3001, st_uvis25, vl6180, dmard06, kxsd9 - Drop use of of_match_ptr to allow ACPI based probing via PRP0001. Part of clear out of this to avoid cut and paste into new drivers. * ad5592r, ad5593r - Fix typos * ad5933 - Use managed interfaces to automate error handling and remove. * ak8974 - Fix wrong number of 'real bits' for buffered data. - Refactor to pull measurement code out as separate function. bmp280 - Fix lack of clamp on range during data capture. * at91-sama5d2_adc - Handle unfinished conversions correctly. - Allow use of triggers other than it's own. - Reorganize buffer setup and tear down as part of long running subsystem wide rework. * ccs811 - Add DT binding docs and match table. - Support external reset and wakeup pins. * hid-sensors - Reorganize buffer setup and tear down as part of long running subsystem wide rework. * ltr501 - Constify some structs. * vcnl4000 - Fix an endian issue by using explicit byte swapped i2c accessors. * tag 'iio-for-5.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (74 commits) iio: light: ltr501: Constify structs staging: iio: ad5933: attach life-cycle of kfifo buffer to parent device and use managed calls throughout iio: bmp280: fix compensation of humidity iio: light: cm32181: Fix integartion time typo iio: light: cm32181: Add support for parsing CPM0 and CPM1 ACPI tables iio: light: cm32181: Make lux_per_bit and lux_per_bit_base_it runtime settings iio: light: cm32181: Use units of 1/100000th for calibscale and lux_per_bit iio: light: cm32181: Change reg_init to use a bitmap of which registers to init iio: light: cm32181: Handle CM3218 ACPI devices with 2 I2C resources iio: light: cm32181: Clean up the probe function a bit iio: light: cm32181: Add support for the CM3218 iio: light: cm32181: Add some extra register defines iio: light: cm32181: Add support for ACPI enumeration iio: light: cm32181: Switch to new style i2c-driver probe function iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger iio: vcnl4000: Add buffer support for VCNL4010/20. iio: vcnl4000: Add sampling frequency support for VCNL4010/20. iio: vcnl4000: Add event support for VCNL4010/20. iio: vcnl4000: Factorize data reading and writing. iio: vcnl4000: Fix i2c swapped word reading. ...
2020-04-27Merge 5.7-rc3 into staging-nextGreg Kroah-Hartman1-1/+1
We need the staging fixes in here too, and this resolves a merge issue with the vt6656 driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-25iio: adis: Support different burst sizesNuno Sá1-2/+7
Add burst_max_len to `adis_burst`. This is useful for devices which support different burst modes with different sizes. The buffer to be used in the spi transfer is allocated with this variable making sure that has space for all burst modes. The spi transfer length should hold the "real" burst length depending on the current burst mode configured in the device. Moreover, `extra_len` in `adis_burst` is made const and it should contain the smallest extra length necessary for a burst transfer. In `struct adis` was added a new `burst_extra_len` that should hold the extra bytes needed depending on the device instance being used. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-25iio: adis: Add adis_update_bits() APIsNuno Sá1-0/+59
This patch adds a `regmap_update_bits()` like API to the ADIS library. It provides locked and unlocked variant. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-25iio: imu: adis: Add irq flag variableNuno Sá1-0/+2
There are some ADIS devices that can configure the data ready pin polarity. Hence, we cannot hardcode our IRQ mask as IRQF_TRIGGER_RISING since we might want to have it as IRQF_TRIGGER_FALLING. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-25iio: imu: adis: Add Managed device functionsNuno Sá1-0/+17
This patch adds support for a managed device version of adis_setup_buffer_and_trigger. It works exactly as the original one but it calls all the devm_iio_* functions to setup an iio buffer and trigger. Hence we do not need to care about cleaning those and we do not need to support a remove() callback for every driver using the adis library. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-23Merge tag 'iio-for-5.8a' of ↵Greg Kroah-Hartman11-102/+69
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new IIO device support, features and cleanup for the 5.8 cycle Usual mix of new drivers, new support in old drivers and lots of minor cleanup. Yaml conversions also continue to trickle in (plenty more to go!) New device support * ad7476 - Add ad7091 support (ID only) * ad9467 - New driver for this 200/250 MSPS adi-axi-adc and SPI attached ADC. * adi-axi-adc - New driver to support ADIs generic AXI ADC IP core, used to provide high speed interfaces to ADCs (JESD204B/C or parallel interfaces). Usually paired with a device using a slow configuration interface (spi etc) Includes DT bindings and some fixes for fpga headers. * bmg160 - Add support for BMI088 (ID only) * max1241 - New driver for this ADC. * st_sensors - Add support for LIS2HH12 accelerometer * sx9310 - New driver supporting sx9310 and sx9311 proximity sensors. Yaml DT binding conversions * rockchip-saradc (including adding some missing parts) * stm32-dac * tsl2563 * vcnl4000 Features * st_lsm6dsx - Add LIS3MDL as a possible sensor hub device. * vcnl4000 - Add new concept of near level (from DT) to provide to userspace which often needs to have some calibrated concept of 'near'. Cleanups, minor fixes etc. * core - Use snprintf for functions where strings are built and there is potential for overflow. - Correct docs to indicate mlock should not be used directly by drivers. - Fix up accidental dropping of a patch to use bitmap_zalloc. - Stop allowing enabling of buffers with no channels enabled. - Drop unused 'stufftoread' from iio_buffer. - Drop scan_el_attrs form iio_buffer as unused. - Reorder sanity checks in __iio_device_register to fail earlier. - Drop all the devm_ runregister / free functions from IIO as they were never used and encourage poor design. * dma-buffer - Tidy up includes. * dma-engine-buffer - Provide dev-managed allocator. - Fix an issue with printing a size_t * cross subsystem (kxsd9, bmg160, mpu3050, bmi160, mpu6050, bmc150) - Replace some unnecessary casts of error ptrs and whilst there. use the %pe printf parameter to print them in a more useful fashion. * cross subsystem - Drop casts in calls to regmap_bulk_read as they make no sense. - Use devm_platform_ioremap_resource to reduce boilerplate. - Fix typos in Analog Devices. * counters/104-quad - Add Syed Nayyar Waris as an additional maintainer. * ad7476 - Generate CONVST signal internally rather than requiring external trigger. Add sysfs read back as can now do so. - use devm_add_action_or_reset to tidy up error and remove handling. * ad7793 - Switch to read_avail from explicit attribute. Mostly done to avoid confusing people with a - sign (without surounding spaces) that was correct but checkpatch didn't like. * adis library - Add missing newlines at end of error messages. * adis16400 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * adis16460 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * ad_sigma_delta - Move some channel definitions into individual drivers to avoid having to deal with complex options. * ak8974 - Silence an error on deffered probe. * bmp280 - Harden against IRQ before registration. - Convert to read_avail instead of opencoding the equivalent. - Explicitly mark GPIO as optional. - Cleanup casts. - Remove line breaks from strings. * htts221 - Replace direct access to platform_data with dev_get_platdata(). - Use device properties rather than device tree ones to allow ACPI probing. - Casting cleanups. * intel_mrfld_adc - Don't use unaligned accessor for aligned data. * isl29125 - Reorder buer pre and post hooks to allow for coming core rework. * ltc2983 - Remove comp to bool. * max1363 - Stop using mlock from the iio_dev directly in favour of a local lock with clearly defined scope. * max30100 - Use generic device properties to allow ACPI probe. * mpu6050 - Convert to i2c_new_client_device. - Add debugfs register access. * st_lsm6dsx - Provide means of configuring full scale on slave device if supported. - Drop include of st_sensors header to get one value. Its not otherwise used by this driver. * st-sensors - Replace direct access to platform_data with dev_get_platdata(). - Casting cleanups. - Avoid splitting strings. * st_uvis25 - Casting cleanups. * tsl2563 - Typo fix. * tsl2772 - scnprintf in a non obvious string building usecase. Note also 'fixes' a wrong calculation of remaining space that couldn't actually cause any trouble as there was lots of room. * xilinx-xadc - Fix Lars-Peter spelling his own name wrong :) + additional typos. * tag 'iio-for-5.8a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (101 commits) iio: magnetometer: ak8974: Silence deferred-probe error Documentation: ABI: document IIO in_proximity_nearlevel file iio: vcnl4000: Export near level property for proximity sensor dt-bindings: iio: light: vcnl4000: Add proximity-near-level dt-bindings: iio: Introduce common properties for iio sensors dt-bindings: iio: vcnl4000: convert bindings to YAML format iio: Fix misspellings of "Analog Devices" iio: light: isl29125: fix iio_triggered_buffer_{predisable,postenable} positions iio: adc: fsl-imx25-gcq: Use devm_platform_ioremap_resource iio: adc: at91-adc: Use devm_platform_ioremap_resource iio: adc: sun4i-gpadc-iio: Use devm_platform_ioremap_resource iio:light:ltr501: Drop unnecessary cast of parameter in regmap_bulk_read iio:magn:mmc35240: Drop unnecessary casts of val parameter in regmap_bulk* iio:imu:mpu6050: Tidy up parameters to regmap_bulk functions. iio:chemical:bme680: Tidy up parameters to regmap_bulk_read iio:chemical:atlas-sensor: Drop unnecessary explicit casts in regmap_bulk_read calls iio:accel:mxc4005: Drop unnecessary explicit casts in regmap_bulk_read calls iio: imu: st_lsm6dsx: drop huge include in sensor-hub driver iio: buffer: drop devm_iio_kfifo_free() API call iio: buffer: drop devm_iio_hw_consumer_free() API call ...
2020-04-20Merge tag 'iio-fixes-for-5.7a' of ↵Greg Kroah-Hartman1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO fixes for the 5.7 cycle. Includes one MAINTAINERS update to avoid people getting a lot of bounce messages and complaining about it. * MAINTAINERS - Drop Stefan Popa's Analog Devices email address in favour of Michael Hennerich. * core - Fix handling of dB sysfs inputs. - Drop a stray semi colon in macro definition. * ad5770r - Fix an off by one in chec on maximum number of channels. * ad7192 - Fix a null pointer de-reference due to the name previously being retrieved from the spi_get_device_id call which no longer works as the relevant table was removed. * ad7797 - Use correct attribute group. * counter/104-quad-8 - Add locks to prevent some race conditions. * inv-mpu6050 - Fix issues around suspend / resume clashing with runtime PM. * stm32-adc - Fix sleep in invalid context - Fix id relative path error in device tree binding doc. * st_lsm6dsx - Fix a read alignment issue on an untagged FIFO. - Handle odr for slave to properly compute the FIFO data layout / pattern. - Flush the HW FIFO before resettting the device to avoid a race on interrupt line 1. * st_sensors - Rely on ODR mask not ODR address to identify if the ODR can be set. Some devices have an ODR address of 0. * ti-ads8344 - Byte ordering was wrong - fix it. * xilinx-xadc - Fix inverted logic in powering down the second ADC. - Fix clearing interrupt when enabling the trigger. - Fix configuration of sequencer when in simultaneous sampling mode. - Limit initial sampling rate as done for runtime configured ones. * tag 'iio-fixes-for-5.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: MAINTAINERS: remove Stefan Popa's email iio: adc: ad7192: fix null pointer de-reference crash during probe iio: core: remove extra semi-colon from devm_iio_device_register() macro iio: adc: ti-ads8344: properly byte swap value iio: imu: inv_mpu6050: fix suspend/resume with runtime power iio: st_sensors: rely on odr mask to know if odr can be set iio: xilinx-xadc: Make sure not exceed maximum samplerate iio: xilinx-xadc: Fix sequencer configuration for aux channels in simultaneous mode iio: xilinx-xadc: Fix clearing interrupt when enabling trigger iio: xilinx-xadc: Fix ADC-B powerdown iio: dac: ad5770r: fix off-by-one check on maximum number of channels iio: imu: st_lsm6dsx: flush hw FIFO before resetting the device iio: core: Fix handling of 'dB' dt-bindings: iio: adc: stm32-adc: fix id relative path counter: 104-quad-8: Add lock guards - generic interface iio: imu: st_lsm6dsx: specify slave odr in slv_odr iio: imu: st_lsm6dsx: fix read misalignment on untagged FIFO iio: adc: stm32-adc: fix sleep in atomic context iio:ad7797: Use correct attribute_group
2020-04-19iio: core: remove extra semi-colon from devm_iio_device_register() macroLars Engebretsen1-1/+1
This change removes the semi-colon from the devm_iio_device_register() macro which seems to have been added by accident. Fixes: 63b19547cc3d9 ("iio: Use macro magic to avoid manual assign of driver_module") Signed-off-by: Lars Engebretsen <lars@engebretsen.ch> Cc: <Stable@vger.kernel.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: buffer: drop devm_iio_kfifo_free() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: buffer: drop devm_iio_hw_consumer_free() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: inkern: drop devm_iio_channel_release{_all} API callsAlexandru Ardelean1-18/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: core: drop devm_iio_trigger_free() API callAlexandru Ardelean1-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: core: drop devm_iio_trigger_unregister() API callAlexandru Ardelean1-3/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: core: drop devm_iio_device_free() API callAlexandru Ardelean1-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. This is the last user of 'devm_iio_device_match()', so it can be removed as well in this patch. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: core: drop devm_iio_triggered_buffer_cleanup() API callAlexandru Ardelean1-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: core: drop devm_iio_device_unregister() API callAlexandru Ardelean1-4/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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