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2024-04-06iio: adc: ab8500-gpadc: Use device_for_each_child_node_scoped() to simplify ↵Jonathan Cameron
erorr paths. This new loop definition automatically releases the handle on early exit reducing the chance of bugs that cause resource leaks. Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240330190849.1321065-4-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06iio: adc: ab8500-gpadc: Fix kernel-doc parameter names.Jonathan Cameron
Seems these got renamed at somepoint but the documentation wasn't updated to match. Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240330190849.1321065-3-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-30iio: adc: ad7944: use spi_optimize_message()David Lechner
This modifies the ad7944 driver to use spi_optimize_message() to reduce CPU usage and increase the max sample rate by avoiding repeating validation of the spi message on each transfer. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20240328-ad7944-spi-optimize-message-v2-1-a142b2576379@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-28iio: adc: ad7944: simplify adi,spi-mode property parsingDavid Lechner
This simplifies the adi,spi-mode property parsing by using device_property_match_property_string() instead of two separate functions. Also, the error return value is now more informative in cases where there was a problem parsing the property. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20240325-ad7944-cleanups-v3-1-3a19120cdd06@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7944: Add support for "3-wire mode"David Lechner
This adds support for AD7944 ADCs wired in "3-wire mode". (NOTE: 3-wire is the datasheet name for this wiring configuration and has nothing to do with SPI_3WIRE.) In the 3-wire mode, the SPI controller CS line can be wired to the CNV line on the ADC and used to trigger conversions rather that using a separate GPIO line. The turbo/chain mode compatibility check at the end of the probe function is technically can't be triggered right now but adding it now anyway so that we don't forget to add it later when support for daisy-chaining is added. Reviewed-by: Nuno Sa <nuno.sa@analog.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20240314-mainline-ad7944-3-wire-mode-v2-1-d469da0705d2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7944: add driver for AD7944/AD7985/AD7986David Lechner
This adds a driver for the Analog Devices Inc. AD7944, AD7985, and AD7986 ADCs. These are a family of pin-compatible ADCs that can sample at rates up to 2.5 MSPS. The initial driver adds support for sampling at lower rates using the usual IIO triggered buffer and can handle all 3 possible reference voltage configurations. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240304-ad7944-mainline-v5-2-f0a38cea8901@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: twl4030-madc: Make use of device propertiesAndy Shevchenko
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Include mod_devicetable.h explicitly to replace the dropped of.h which included mod_devicetable.h indirectly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240304144037.1036390-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7173: add support for additional modelsDumitru Ceclan
Add support for Analog Devices AD7172-2, AD7175-8, AD7177-2. Signed-off-by: Dumitru Ceclan <mitrutzceclan@gmail.com> Link: https://lore.kernel.org/r/20240306110956.13167-4-mitrutzceclan@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7173: improve chip id's definesDumitru Ceclan
Rename to AD7172_2_ID to avoid confusion with _4 model. Reorder id's by reg value. Signed-off-by: Dumitru Ceclan <mitrutzceclan@gmail.com> Link: https://lore.kernel.org/r/20240306110956.13167-3-mitrutzceclan@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7173: add AD7173 driverDumitru Ceclan
The AD7173 family offer a complete integrated Sigma-Delta ADC solution which can be used in high precision, low noise single channel applications or higher speed multiplexed applications. The Sigma-Delta ADC is intended primarily for measurement of signals close to DC but also delivers outstanding performance with input bandwidths out to ~10kHz. Reviewed-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: Michael Walle <michael@walle.cc> # for gpio-regmap Signed-off-by: Dumitru Ceclan <mitrutzceclan@gmail.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240228110622.25114-3-mitrutzceclan@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad_sigma_delta: Add optional irq selectionDumitru Ceclan
Add optional irq_num attribute to ad_sigma_delta_info structure for selecting the used interrupt line for ADC's conversion completion. Signed-off-by: Dumitru Ceclan <mitrutzceclan@gmail.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240228110622.25114-2-mitrutzceclan@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: spear_adc: Make use of device propertiesAndy Shevchenko
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Include mod_devicetable.h explicitly to replace the dropped of.h which included mod_devicetable.h indirectly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240228203023.3609181-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: rcar-gyroadc: use for_each_available_child_node_scoped()Jonathan Cameron
Using automated cleanup to replace of_node_put() handling allows for a simplfied flow by enabling direct returns on errors. Non available child nodes should never have been considered; that is ones where status != okay and was defined. Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240225142714.286440-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: rzg2l_adc: Use device_for_each_child_node_scoped()Jonathan Cameron
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. Cc: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20240224123215.161469-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: hx711: Switch from of specific to fwnode property handling.Jonathan Cameron
Allows driver to be used with other firmware types and removes an example that might be copied into new IIO drivers. Cc: Andreas Klinger <ak@it-klinger.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-9-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7192: Convert from of specific to fwnode property handlingJonathan Cameron
Enables use of with other firmwware types. Removes a case of device tree specific handlers that might get copied into new drivers. Cc: Alisa-Dariana Roman <alisa.roman@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7292: Switch from of specific to fwnode property handlingJonathan Cameron
This reduces the wrong of device tree only IIO drivers that might be copied by converting over this simple case. Makes use of the new _scoped() handling to automatically release the fwnode_handle on early exit from the loop. Cc: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: ad7124: Switch from of specific to fwnode based property handlingJonathan Cameron
Using the generic firmware data access functions from property.h provides a number of advantages: 1) Works with different firmware types. 2) Doesn't provide a 'bad' example for new IIO drivers. 3) Lets us use the new _scoped() loops with automatic reference count cleanup for fwnode_handle Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Michael Hennerich <Michael.Hennerich@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-4-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: fsl-imx25-gcq: Use devm_* and dev_err_probe() to simplify probeJonathan Cameron
Custom callbacks are need for regulators (so there is a handle to read the voltage from) and the clk because it is retrieved from the parent rather than directly from firmware description. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-3-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: fsl-imx25-gcq: Switch from of specific handing to fwnode based.Jonathan Cameron
Using the generic firmware data access functions from property.h provides a number of advantages: 1) Works with different firmware types. 2) Doesn't provide a 'bad' example for new IIO drivers. 3) Lets us use the new _scoped() loops with automatic reference count cleanup for fwnode_handle Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218172731.1023367-2-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25iio: adc: max11410: Use device_for_each_child_node_scoped()Jonathan Cameron
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240217164249.921878-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-21Merge tag 'char-misc-6.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver subsystem updates from Greg KH: "Here is the big set of char/misc and a number of other driver subsystem updates for 6.9-rc1. Included in here are: - IIO driver updates, loads of new ones and evolution of existing ones - coresight driver updates - const cleanups for many driver subsystems - speakup driver additions - platform remove callback void cleanups - mei driver updates - mhi driver updates - cdx driver updates for MSI interrupt handling - nvmem driver updates - other smaller driver updates and cleanups, full details in the shortlog All of these have been in linux-next for a long time with no reported issue, other than a build warning for the speakup driver" The build warning hits clang and is a gcc (and C23) extension, and is fixed up in the merge. Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/ * tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits) binder: remove redundant variable page_addr uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion uio_pruss: UIO_MEM_DMA_COHERENT conversion cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT uio: introduce UIO_MEM_DMA_COHERENT type cdx: add MSI support for CDX bus pps: use cflags-y instead of EXTRA_CFLAGS speakup: Add /dev/synthu device speakup: Fix 8bit characters from direct synth parport: sunbpp: Convert to platform remove callback returning void parport: amiga: Convert to platform remove callback returning void char: xillybus: Convert to platform remove callback returning void vmw_balloon: change maintainership MAINTAINERS: change the maintainer for hpilo driver char: xilinx_hwicap: Fix NULL vs IS_ERR() bug hpet: remove hpets::hp_clocksource platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH char: xilinx_hwicap: drop casting to void in dev_set_drvdata greybus: move is_gb_* functions out of greybus.h greybus: Remove usage of the deprecated ida_simple_xx() API ...
2024-03-13Merge tag 'spi-v6.9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "This release sees some exciting changes from David Lechner which implements some optimisations that have been talked about for a long time which allows client drivers to pre-prepare SPI messages for repeated or low latency use. This lets us move work out of latency sensitive paths and avoid repeating work for frequently performed operations. As well as being useful in itself this will also be used in future to allow controllers to directly trigger SPI operations (eg, from interrupts). Otherwise this release has mostly been focused on cleanups, plus a couple of new devices: - Support for pre-optimising messages - A big set of updates from Uwe Kleine-König moving drivers to use APIs with more modern terminology for controllers - Major overhaul of the s3c64xx driver - Support for Google GS101 and Samsung Exynos850" * tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits) spi: Introduce SPI_INVALID_CS and is_valid_cs() spi: Fix types of the last chip select storage variables spi: Consistently use BIT for cs_index_mask spi: Exctract spi_dev_check_cs() helper spi: Exctract spi_set_all_cs_unused() helper spi: s3c64xx: switch exynos850 to new port config data spi: s3c64xx: switch gs101 to new port config data spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id spi: s3c64xx: get rid of the OF alias ID dependency spi: s3c64xx: introduce s3c64xx_spi_set_port_id() spi: s3c64xx: let the SPI core determine the bus number spi: s3c64xx: allow FIFO depth to be determined from the compatible spi: s3c64xx: retrieve the FIFO depth from the device tree spi: s3c64xx: determine the fifo depth only once spi: s3c64xx: allow full FIFO masks spi: s3c64xx: define a magic value spi: dt-bindings: introduce FIFO depth properties spi: axi-spi-engine: use struct_size() macro spi: axi-spi-engine: use __counted_by() attribute spi: axi-spi-engine: remove p from struct spi_engine_message_state ...
2024-02-28iio: adc: qcom-pm8xxx-xoadc: drop unused kerneldoc struct pm8xxx_chan_info ↵Krzysztof Kozlowski
member Drop description of non-existing 'struct pm8xxx_chan_info' member: qcom-pm8xxx-xoadc.c:386: warning: Excess struct member 'scale_fn_type' description in 'pm8xxx_chan_info' Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20240225202744.60500-1-krzysztof.kozlowski@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: rockchip_saradc: replace custom logic with ↵Quentin Schulz
devm_reset_control_get_optional_exclusive devm_reset_control_get_optional_exclusive does what this driver is trying to do in its probe function, therefore let's switch over to that subsystem function. Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240223-saradcv2-chan-mask-v1-3-84b06a0f623a@theobroma-systems.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: rockchip_saradc: use mask for write_enable bitfieldQuentin Schulz
Some of the registers on the SARADCv2 have bits write protected except if another bit is set. This is usually done by having the lowest 16 bits store the data to write and the highest 16 bits specify which of the 16 lowest bits should have their value written to the hardware block. The write_enable mask for the channel selection was incorrect because it was just the value shifted by 16 bits, which means it would only ever write bits and never clear them. So e.g. if someone starts a conversion on channel 5, the lowest 4 bits would be 0x5, then starts a conversion on channel 0, it would still be 5. Instead of shifting the value by 16 as the mask, let's use the OR'ing of the appropriate masks shifted by 16. Note that this is not an issue currently because the only SARADCv2 currently supported has a reset defined in its Device Tree, that reset resets the SARADC controller before starting a conversion on a channel. However, this reset is handled as optional by the probe function and thus proper masking should be used in the event an SARADCv2 without a reset ever makes it upstream. Fixes: 757953f8ec69 ("iio: adc: rockchip_saradc: Add support for RK3588") Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20240223-saradcv2-chan-mask-v1-2-84b06a0f623a@theobroma-systems.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: rockchip_saradc: fix bitmask for channels on SARADCv2Quentin Schulz
The SARADCv2 on RK3588 (the only SoC currently supported that has an SARADCv2) selects the channel through the channel_sel bitfield which is the 4 lowest bits, therefore the mask should be GENMASK(3, 0) and not GENMASK(15, 0). Fixes: 757953f8ec69 ("iio: adc: rockchip_saradc: Add support for RK3588") Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240223-saradcv2-chan-mask-v1-1-84b06a0f623a@theobroma-systems.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: adding support for PAC193xMarius Cristea
This is the iio driver for Microchip PAC193X series of Power Monitor with Accumulator chip family. Signed-off-by: Marius Cristea <marius.cristea@microchip.com> Link: https://lore.kernel.org/r/20240222164206.65700-3-marius.cristea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: ti-ads1298: prevent divide by zero in ads1298_set_samp_freq()Dan Carpenter
The "val" variable comes from the user so we need to ensure that it's not zero. In fact, all negative values are invalid as well. Add a check for that. Fixes: 00ef7708fa60 ("iio: adc: ti-ads1298: Add driver") Acked-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/c32c9087-86de-423b-8101-67b4a7f9d728@moroto.mountain Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: ti-ads1298: Fix error code in probe()Dan Carpenter
There is a copy and paste bug here, it should be "reg_vref" instead of "reg_avdd". The "priv->reg_avdd" variable is zero so it ends up returning success. Fixes: 00ef7708fa60 ("iio: adc: ti-ads1298: Add driver") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Mike Looijmans <mike.looijmans@topic.nl> Link: https://lore.kernel.org/r/5f393a87-ca8b-4e68-a6f4-a79f75a91ccb@moroto.mountain Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: mcp320x: Simplify device removal logicArturas Moskvinas
Use devm_* APIs to enable/disable regulator and to register in IIO infrastructure. Signed-off-by: Arturas Moskvinas <arturas.moskvinas@gmail.com> Link: https://lore.kernel.org/r/20240219074139.193464-2-arturas.moskvinas@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-28iio: adc: ads8688: Switch to mod_devicetable.h for struct of_device_id ↵Jonathan Cameron
definition of.h was only included to get access to this structure, so include the correct header directly instead. Reviewed-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240218173323.1023703-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-25Merge tag 'iio-for-6.9a' of ↵Greg Kroah-Hartman
http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: IIO: 1st set of new device support, features and cleanup for 6.9 IIO Backend support =================== New approach from Nuno Sa to the problem of reuse of drivers with IIO devices that are actually the combination of a highspeed chip and an FPGA core handling the data capture and flows. It will hopefully also apply to some other split designs. The ad9467 and axi-adi drivers are converted over to this framework. New device support ================== adi,admfm2000 - New driver for this dual microwave down converter. ams,as73211 - Add support for as7331 UV sensor. richtek,rtq6056 - Add support for related parts RTQ6053 and RTQ6059 st,lsm6dsx - Add ASM330LHHXG1 accelerometer and gyro support (mainly IDs) ti,ads1298 - New driver for this medical ADC. Features ======== tests - Unit tests for the gain-time-scale helper library. bosch,bmi088 - I2C support. bosh,bmi160 - Add 10EC5280 ACPI ID. Used in a number of devices that won't get fixed. The ID is actually a PCI ID belonging to realtech. No response was received to earlier attempts to notify them of this. The manufacturers of some devices have replied to say they will not fix this incorrect ID. Add the ID and hope it isn't a problem. bosch,bmi323 - Add BOSC0200 ACPI ID. Note this is a duplicate of one in the bmc150 driver (it appears these parts share a windows driver). Both drivers perform an ID check that is safe on the other part before successfully probing. hid-sensors-als - Add color temperature and chromaticity support. Note this is a replacement for the series reverted in 6.8 that correctly handles all the potential channel combinations. honeywell,hsc030pa - Triggered buffer support (after driver cleanup). honeywell,mprls00025pa - Improved error handling. - New DT binding to allow use of part number triplet as provided in data sheet to specify equivalent of most of the binding more efficiently. - SPI support. memsic,mxc4005 - ACPI ID MDA6655 as seen in the Chuwi Minibook X 2023 ti,hdc3020 - Add threshold event support (after some driver cleanup) veml,vcnl4000 - Switch to high resolution proximity measurement. Cleanup ======= Various minor typo fixes and better use of defines etc. Treewide - Stop using ACPI_PTR(). The savings in space are small and not worth the complexity of __maybe_unused of ifdef guards. To avoid use in new IIO drivers based on copy and paste, clean it out. - cleanup.h based handling of iio_device_claim_direct_mode()/ iio_device_release_direct_mode() using scope_cond_guard(). In many drivers this is combined with other automated cleanup to give maximum simplifications. An initial set of drivers are converted over to this infrastructure. Tools - Use rewinddir() instead of seekdir() to return to start of file. core - Make iio_bus_type constant. adi,ad16475 - Use irq_get_trigger_type() instead of opencoding. adi,ad16480 - Use irq_get_trigger_type() instead of opencoding. adi,ad-sigma-delta - Avoid overwriting IRQ flags if provided by firmware. ams,as73211 - Use IIO_VAL_FRACTIONAL for scales to simplify the code and potentially improve accuracy. gts-library - Use a div64_u64() instead of a loop to do a division. honeywell,mprls00025pa - Clean up dt-binding doc. - Drop defaults when DT binding not providing values. Very unlikely these were useful given they were wrong for vast majority of supported devices. - Whitespace cleanup miramems,da280 - Use i2c_get_match_data() to replace hand rolled ACPI matching code. semtech,sx9324 - Avoid unnecessary copying of property strings. st,lsm6dsx - Improve docs, particularly wrt to making addition of new device support less noisy. st,lsm9ds0 - Use dev_err_probe() in all probe() error handling. - Improved header includes. - Tidy up termination of ID tables. ti,ads1014 - Correct upper bound on PGA (wrong value had no actual impact) ti,afe4403/4404 - devm_ useage to simplify error handling in probe() and allow() remove to be dropped. voltage-divider - Add dt-binding for io-channel-cells to allow such a device to be both an IIO consumer and IIO producer at the same time. * tag 'iio-for-6.9a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (106 commits) iio: imu: bmi323: Add ACPI Match Table iio: accel: bmc150: Document duplicate ACPI entries with bmi323 driver iio: adc: ti-ads1298: Add driver dt-bindings: iio: adc: ti-ads1298: Add bindings iio: pressure: hsc030pa add triggered buffer iio: pressure: hsc030pa add mandatory delay iio: pressure: hsc030pa: update datasheet URLs iio: pressure: hsc030pa: include cleanup iio: pressure: hsc030pa: use signed type to hold div_64() result dt-bindings: iio: pressure: honeywell,hsc030pa.yaml add spi props iio: st_sensors: lsm9ds0: Use common style for terminator in ID tables iio: st_sensors: lsm9ds0: Don't use "proxy" headers iio: st_sensors: lsm9ds0: Use dev_err_probe() everywhere iio: adc: adi-axi-adc: move to backend framework iio: adc: ad9467: convert to backend framework iio: add the IIO backend framework iio: buffer-dmaengine: export buffer alloc and free functions of: property: add device link support for io-backends dt-bindings: adc: axi-adc: update bindings for backend framework dt-bindings: adc: ad9467: add new io-backend property ...
2024-02-19iio: adc: ti-ads1298: Add driverMike Looijmans
Skeleton driver for the TI ADS1298 medical ADC. This device is typically used for ECG and similar measurements. Supports data acquisition at configurable scale and sampling frequency. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Link: https://lore.kernel.org/r/20240216153020.485201-2-mike.looijmans@topic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: adc: adi-axi-adc: move to backend frameworkNuno Sa
Move to the IIO backend framework. Devices supported by adi-axi-adc now register themselves as backend devices. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-7-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: adc: ad9467: convert to backend frameworkNuno Sa
Convert the driver to use the new IIO backend framework. The device functionality is expected to be the same (meaning no added or removed features). Also note this patch effectively breaks ABI and that's needed so we can properly support this device and add needed features making use of the new IIO framework. Given the lack of features (and devices supported) in the ad9467 driver compared with the ADI out of tree version, we don't expect any user of the upstream driver so no one should notice the ABI breakage. However, if someone is affected by this, ADI will happily support transitioning to the backend framework. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-6-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: buffer-dmaengine: export buffer alloc and free functionsNuno Sa
Export iio_dmaengine_buffer_free() and iio_dmaengine_buffer_alloc(). This is in preparation of introducing IIO backends support. This will allow us to allocate a buffer and control it's lifetime from a device different from the one holding the DMA firmware properties. Effectively, in this case the struct device holding the firmware information about the DMA channels is not the same as iio_dev->dev.parent (typical case). While at it, namespace the buffer-dmaengine exports and update the current user of these buffers. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-4-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: ad7091r-base: Use auto cleanup of locks.Jonathan Cameron
Done to reduce boilerplate and simplify code flow by allowing early returns with the lock automatically released. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-11-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: ad4130: Use automatic cleanup of locks and direct mode.Jonathan Cameron
Reduces boilerplate and allows for simpler to follow direct returns. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-10-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: max1363: Use automatic cleanup for locks and iio mode claiming.Jonathan Cameron
This simplifies error return paths. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: ad_sigma_delta: allow overwriting the IRQ flagsNuno Sa
Make sure we can specify the IRQ trigger type from firmware and drivers won't ignore it. In fact, this how it should be done but since someone might be already depending on the driver to hardcode the trigger type (and not specifying it in firmware), let's do it like this so there's no possible breakage. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240117-dev_sigma_delta_no_irq_flags-v1-2-db39261592cf@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-10iio: adc: ad4130: only set GPIO_CTRL if pin is unusedCosmin Tanislav
Currently, GPIO_CTRL bits are set even if the pins are used for measurements. GPIO_CTRL bits should only be set if the pin is not used for other functionality. Fix this by only setting the GPIO_CTRL bits if the pin has no other function. Fixes: 62094060cf3a ("iio: adc: ad4130: add AD4130 driver") Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240207132007.253768-2-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-10iio: adc: ad4130: zero-initialize clock init dataCosmin Tanislav
The clk_init_data struct does not have all its members initialized, causing issues when trying to expose the internal clock on the CLK pin. Fix this by zero-initializing the clk_init_data struct. Fixes: 62094060cf3a ("iio: adc: ad4130: add AD4130 driver") Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240207132007.253768-1-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-08iio: adc: ad_sigma_delta: Follow renaming of SPI "master" to "controller"Uwe Kleine-König
In commit 8caab75fd2c2 ("spi: Generalize SPI "master" to "controller"") some functions and struct members were renamed. To not break all drivers compatibility macros were provided. To be able to remove these compatibility macros push the renaming into this driver. Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/de866d09c80c89816df62602ba4ba8ba30e9971f.1707324794.git.u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2024-01-23iio: adc: rtq6056: Add support for the whole RTQ6056 familyChiYuan Huang
RTQ6053 and RTQ6059 are the same series of RTQ6056. The respective differences with RTQ6056 are listed below RTQ6053 - chip package type RTQ6059 - Reduce the pinout for vbus sensing pin - Some internal ADC scaling change Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/3541207c4727e3a76b9a3caf88ef812a4d47b764.1704676198.git.cy_huang@richtek.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-01-23iio: adc: ti-adc109s102: drop ACPI_PTR() and CONFIG_ACPI guardsJonathan Cameron
The complexity of config guards needed for ACPI_PTR() is not worthwhile for the small amount of saved data. This example was doing it correctly but I am proposing dropping this so as to reduce chance of cut and paste where it is done wrong. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20231231183514.566609-25-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-01-22iio: adc: ad7091r8: Fix error code in ad7091r8_gpio_setup()Dan Carpenter
There is a copy and paste error so it accidentally returns ->convst_gpio instead of ->reset_gpio. Fix it. Fixes: 0b76ff46c463 ("iio: adc: Add support for AD7091R-8") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Link: https://lore.kernel.org/r/fd905ad0-6413-489c-9a3b-90c0cdb35ec9@moroto.mountain Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-01-22iio: adc: ti-ads1015: Use correct pga upper boundMohammed Billoo
The devicetree binding and datasheets (for both the ADS1015 and ADS1115) show that the PGA index should have a maximum value of 5, and not 6. Signed-off-by: Mohammed Billoo <mab.kernel@gmail.com> Link: https://lore.kernel.org/r/20240106174836.1086714-1-mab.kernel@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-01-17Merge tag 'char-misc-6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other driver subsystem changes for 6.8-rc1. Other than lots of binder driver changes (as you can see by the merge conflicts) included in here are: - lots of iio driver updates and additions - spmi driver updates - eeprom driver updates - firmware driver updates - ocxl driver updates - mhi driver updates - w1 driver updates - nvmem driver updates - coresight driver updates - platform driver remove callback api changes - tags.sh script updates - bus_type constant marking cleanups - lots of other small driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits) android: removed duplicate linux/errno uio: Fix use-after-free in uio_open drivers: soc: xilinx: add check for platform firmware: xilinx: Export function to use in other module scripts/tags.sh: remove find_sources scripts/tags.sh: use -n to test archinclude scripts/tags.sh: add local annotation scripts/tags.sh: use more portable -path instead of -wholename scripts/tags.sh: Update comment (addition of gtags) firmware: zynqmp: Convert to platform remove callback returning void firmware: turris-mox-rwtm: Convert to platform remove callback returning void firmware: stratix10-svc: Convert to platform remove callback returning void firmware: stratix10-rsu: Convert to platform remove callback returning void firmware: raspberrypi: Convert to platform remove callback returning void firmware: qemu_fw_cfg: Convert to platform remove callback returning void firmware: mtk-adsp-ipc: Convert to platform remove callback returning void firmware: imx-dsp: Convert to platform remove callback returning void firmware: coreboot_table: Convert to platform remove callback returning void firmware: arm_scpi: Convert to platform remove callback returning void firmware: arm_scmi: Convert to platform remove callback returning void ...
2023-12-26iio: adc: Add support for AD7091R-8Marcelo Schmitt
Add support for Analog Devices AD7091R-2, AD7091R-4, and AD7091R-8 low power 12-Bit SAR ADCs with SPI interface. Extend ad7091r-base driver so it can be used by the AD7091R-8 driver. Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Link: https://lore.kernel.org/r/09d1d1c4b39cecc528488efac6094233715f5659.1703013352.git.marcelo.schmitt1@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-04 15:32:58 +0000