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path: root/drivers/iio/adc/Kconfig
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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>
2023-12-26iio: adc: Split AD7091R-5 config symbolMarcelo Schmitt
Split AD7091R-5 kconfig symbol into one symbol for the base AD7091R driver and another one for the I2C interface AD7091R-5 driver. Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Link: https://lore.kernel.org/r/8cae37c611c1b0fe3faef7a4b8c4cc915eaeddc7.1703013352.git.marcelo.schmitt1@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-11iio: adc: adi-axi-adc: convert to regmapNuno Sa
Use MMIO regmap interface. It makes things easier for manipulating bits. Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20231207-iio-backend-prep-v2-8-a4a33bc4d70e@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-11-16iio: adc: Add driver support for MAX34408/9Ivan Mikhaylov
The MAX34408/MAX34409 are two- and four-channel current monitors that are configured and monitored with a standard I2C/SMBus serial interface. Each unidirectional current sensor offers precision high-side operation with a low full-scale sense voltage. The devices automatically sequence through two or four channels and collect the current-sense samples and average them to reduce the effect of impulse noise. The raw ADC samples are compared to user-programmable digital thresholds to indicate overcurrent conditions. Overcurrent conditions trigger a hardware output to provide an immediate indication to shut down any necessary external circuitry. Add as ADC driver which only supports current monitoring for now. Link: https://www.analog.com/media/en/technical-documentation/data-sheets/MAX34408-MAX34409.pdf Signed-off-by: Ivan Mikhaylov <fr0st61te@gmail.com> Link: https://lore.kernel.org/r/20231014211254.16719-3-fr0st61te@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12iio: adc: adding support for MCP3564 ADCMarius Cristea
This is the iio driver for Microchip family of 153.6 ksps, Low-Noise 16/24-Bit Delta-Sigma ADCs with an SPI interface (Microchip's MCP3461, MCP3462, MCP3464, MCP3461R, MCP3462R, MCP3464R, MCP3561, MCP3562, MCP3564, MCP3561R, MCP3562R and MCP3564R analog to digital converters). Signed-off-by: Marius Cristea <marius.cristea@microchip.com> Link: https://lore.kernel.org/r/20230829154133.40716-3-marius.cristea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12iio: adc: add ltc2309 supportLiam Beguin
The LTC2309 is an 8-Channel, 12-Bit SAR ADC with an I2C Interface. This implements support for all single-ended and differential channels, in unipolar mode only. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Link: https://lore.kernel.org/r/20230828-ltc2309-v3-2-338b3a8fab8b@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-11iio: adc: mcp3911: add support for the whole MCP39xx familyMarcus Folkesson
Microchip does have many similar chips, add support for those. The new supported chips are: - microchip,mcp3910 - microchip,mcp3912 - microchip,mcp3913 - microchip,mcp3914 - microchip,mcp3918 - microchip,mcp3919 Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230822192259.1125792-7-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-07-20iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADCMaksim Kiselev
The General Purpose ADC (GPADC) can convert the external signal into a certain proportion of digital value, to realize the measurement of analog signal, which can be applied to power detection and key detection. Theoretically, this ADC can support up to 16 channels. All SoCs below contain this GPADC IP. The only difference between them is the number of available channels: T113 - 1 channel D1 - 2 channels R329 - 4 channels T507 - 4 channels Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com> Link: https://lore.kernel.org/r/20230619154252.3951913-3-bigunclemax@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-07-20iio: adc: Kconfig change description for Allwinner GPADCMaksim Kiselev
This patch adds SoCs names to Allwinner GPADC description to make it more informative. Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com> Link: https://lore.kernel.org/r/20230619154252.3951913-2-bigunclemax@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-07-03Merge tag 'char-misc-6.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull Char/Misc updates from Greg KH: "Here is the big set of char/misc and other driver subsystem updates for 6.5-rc1. Lots of different, tiny, stuff in here, from a range of smaller driver subsystems, including pulls from some substems directly: - IIO driver updates and additions - W1 driver updates and fixes (and a new maintainer!) - FPGA driver updates and fixes - Counter driver updates - Extcon driver updates - Interconnect driver updates - Coresight driver updates - mfd tree tag merge needed for other updates on top of that, lots of small driver updates as patches, including: - static const updates for class structures - nvmem driver updates - pcmcia driver fix - lots of other small driver updates and fixes All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (243 commits) bsr: fix build problem with bsr_class static cleanup comedi: make all 'class' structures const char: xillybus: make xillybus_class a static const structure xilinx_hwicap: make icap_class a static const structure virtio_console: make port class a static const structure ppdev: make ppdev_class a static const structure char: misc: make misc_class a static const structure /dev/mem: make mem_class a static const structure char: lp: make lp_class a static const structure dsp56k: make dsp56k_class a static const structure bsr: make bsr_class a static const structure oradax: make 'cl' a static const structure hwtracing: hisi_ptt: Fix potential sleep in atomic context hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU hwtracing: hisi_ptt: Export available filters through sysfs hwtracing: hisi_ptt: Add support for dynamically updating the filter list hwtracing: hisi_ptt: Factor out filter allocation and release operation samples: pfsm: add CC_CAN_LINK dependency misc: fastrpc: check return value of devm_kasprintf() coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable() ...
2023-06-28iio: adc: max77541: Add ADI MAX77541 ADC SupportOkan Sahin
The MAX77541 has an 8-bit Successive Approximation Register (SAR) ADC with four multiplexers for supporting the telemetry feature. Signed-off-by: Okan Sahin <okan.sahin@analog.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230412111256.40013-4-okan.sahin@analog.com Signed-off-by: Lee Jones <lee@kernel.org>
2023-05-20iio: ad7606: Kconfig: add HAS_IOPORT dependenciesNiklas Schnelle
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. We thus need to add HAS_IOPORT as dependency for those drivers using them. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Link: https://lore.kernel.org/r/20230516110038.2413224-13-schnelle@linux.ibm.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-12iio: adc: Add TI ADS1100 and ADS1000Mike Looijmans
The ADS1100 is a 16-bit ADC (at 8 samples per second). The ADS1000 is similar, but has a fixed data rate. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230307065535.7927-2-mike.looijmans@topic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-02-24Merge tag 'char-misc-6.3-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 large set of driver changes for char/misc drivers and other smaller driver subsystems that flow through this git tree. Included in here are: - New IIO drivers and features and improvments in that subsystem - New hwtracing drivers and additions to that subsystem - lots of interconnect changes and new drivers as that subsystem seems under very active development recently. This required also merging in the icc subsystem changes through this tree. - FPGA driver updates - counter subsystem and driver updates - MHI driver updates - nvmem driver updates - documentation updates - Other smaller driver updates and fixes, full details in the shortlog All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits) scripts/tags.sh: fix incompatibility with PCRE2 firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries mei: lower the log level for non-fatal failed messages mei: bus: disallow driver match while dismantling device misc: vmw_balloon: fix memory leak with using debugfs_lookup() nvmem: stm32: fix OPTEE dependency dt-bindings: nvmem: qfprom: add IPQ8074 compatible nvmem: qcom-spmi-sdam: register at device init time nvmem: rave-sp-eeprm: fix kernel-doc bad line warning nvmem: stm32: detect bsec pta presence for STM32MP15x nvmem: stm32: add OP-TEE support for STM32MP13x nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() nvmem: core: add nvmem_add_one_cell() nvmem: core: drop the removal of the cells in nvmem_add_cells() nvmem: core: move struct nvmem_cell_info to nvmem-provider.h nvmem: core: add an index parameter to the cell of: property: add #nvmem-cell-cells property of: property: make #.*-cells optional for simple props of: base: add of_parse_phandle_with_optional_args() net: add helper eth_addr_add() ...
2023-01-22iio: adc: add imx93 adc supportHaibo Chen
The ADC in i.mx93 is a total new ADC IP, add a driver to support this ADC. Currently, only support one shot normal conversion triggered by software. For other mode, will add in future. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Link: https://lore.kernel.org/r/20230117135137.1735536-2-haibo.chen@nxp.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-01-21iio: adc: ti-ads7924: add Texas Instruments ADS7924 driverHugo Villeneuve
The Texas Instruments ADS7924 is a 4 channels, 12-bit analog to digital converter (ADC) with an I2C interface. Datasheet: https://www.ti.com/lit/gpn/ads7924 Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20230115170623.3680647-2-hugo@hugovil.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-01-16ARM: s3c: remove s3c24xx specific hacksArnd Bergmann
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-08iio: adc: ep93xx: Enable wider build testing with COMPILE_TESTJonathan Cameron
It is useful to be able to build this driver without needing to build support for ARCH_EP93XX. Also add an explicit dependency on HAS_IOMEM so we have devm_platform_ioremap_resource() etc available. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Alexander Sverdlin <alexander.sverdlin@gmail.com> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Link: https://lore.kernel.org/r/20221231144128.489810-1-jic23@kernel.org
2022-12-28iio: adc: add ADC driver for the TI LMP92064 controllerLeonard Göhrs
The TI LMP92064 is a dual 12 Bit ADC connected via SPI. The two channels are intended for simultaneous measurements of the voltage across- and current through a load to allow accurate instantaneous power measurements. The driver does not yet take advantage of this feature, as buffering is not yet implemented. Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de> Link: https://lore.kernel.org/r/20221128133503.1355898-2-l.goehrs@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: adc: ad4130: depend on GPIOLIBCosmin Tanislav
Fixes undefined references to 'gpiochip_get_data' and 'devm_gpiochip_add_data_with_key'. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Reported-by: kernel test robot <lkp@intel.com> Fixes: 62094060cf3a ("iio: adc: ad4130: add AD4130 driver") Link: https://lore.kernel.org/r/20221114133649.1737027-1-cosmin.tanislav@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: adc: ad4130: add AD4130 driverCosmin Tanislav
AD4130-8 is an ultra-low power, high precision, measurement solution for low bandwidth battery operated applications. The fully integrated AFE (Analog Front-End) includes a multiplexer for up to 16 single-ended or 8 differential inputs, PGA (Programmable Gain Amplifier), 24-bit Sigma-Delta ADC, on-chip reference and oscillator, selectable filter options, smart sequencer, sensor biasing and excitation options, diagnostics, and a FIFO buffer. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20221021104115.1812486-3-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: adc: mt6370: Add MediaTek MT6370 supportChiaEn Wu
MediaTek MT6370 is a SubPMIC consisting of a single cell battery charger with ADC monitoring, RGB LEDs, dual channel flashlight, WLED backlight driver, display bias voltage supply, one general purpose LDO, and the USB Type-C & PD controller complies with the latest USB Type-C and PD standards. Add support for the MT6370 ADC driver for system monitoring, including charger current, voltage, and temperature. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com> Link: https://lore.kernel.org/r/81ec58ae89030e48508d6810396de2679c40d26c.1665488982.git.chiaen_wu@richtek.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: adc: add max11410 adc driverIbrahim Tilki
Adding support for max11410 24-bit, 1.9ksps delta-sigma adc which has 3 differential reference and 10 differential channel inputs. Inputs and references can be buffered internally. Inputs can also be amplified with internal PGA. Device has four digital filter modes: FIR50/60, FIR50, FIR60 and SINC4. FIR 50Hz and 60Hz rejections can be enabled/disabled separately. Digital filter selection affects sampling frequency range so driver has to consider the configured filter when configuring sampling frequency. Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com> Link: https://lore.kernel.org/r/20221003105903.229-2-Ibrahim.Tilki@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: mcp3911: add support for buffersMarcus Folkesson
Add support for buffers to make the driver fit for more use cases. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220815061625.35568-6-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-05iio: adc: add max11205 adc driverRamona Bolboaca
Adding support for max11205 16-bit single-channel ultra-low power delta-sigma adc. The MAX11205 is compatible with the 2-wire interface and uses SCLK and RDY/DOUT for serial communications. In this mode, all controls are implemented by timing the high or low phase of the SCLK. The 2-wire serial interface only allows for data to be read out through the RDY/DOUT output. Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX11205.pdf Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220831133021.215625-2-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-20iio: stx104: Move to addac subdirectoryWilliam Breathitt Gray
The stx104 driver supports both ADC and DAC functionality. Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/20220815222921.138945-1-william.gray@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15iio: adc: Add rtq6056 supportChiYuan Huang
Add Richtek rtq6056 supporting. It can be used for the system to monitor load current and power with 16-bit resolution. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/1658242365-27797-3-git-send-email-u0084500@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-18Merge branch 'immutable-qcom-spmi-rradc' into togregJonathan Cameron
Immutable branch used to allow changes to SPMI and MFD subsystems needed by this driver to be pulled into those trees as well if relevant.
2022-06-18iio: adc: qcom-spmi-rradc: introduce round robin adcCaleb Connolly
The Round Robin ADC is responsible for reading data about the rate of charge from the USB or DC input ports, it can also read the battery ID (resistence), skin temperature and the die temperature of the pmic. It is found on the PMI8998 and PM660 Qualcomm PMICs. Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org> Link: https://lore.kernel.org/r/20220429220904.137297-6-caleb.connolly@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14iio: adc: vf610_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. Add mod_devicetable.h include. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220531142353.64925-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14iio: adc: lpc18xx_adc: Switch from of headers to mod_devicetable.hAndy Shevchenko
There is nothing directly using of specific interfaces in this driver, so lets not include the headers. While at it, drop dependency to OF, which currently makes no sense. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220531212218.72189-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11iio: adc: envelope-detector: Drop dependency on OFAndy Shevchenko
Nothing in this driver depends on OF so drop the dependency to remove the false impression such a dependency exists. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220530181313.2789-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11iio: adc: sd_adc_modulator: Drop dependency on OFAndy Shevchenko
Nothing in this driver depends on OF so drop the dependency to remove the false impression such a dependency exists. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220530181706.3045-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-04-28iio: adc: Kconfig: Make RZG2L_ADC depend on ARCH_RZG2LLad Prabhakar
ADC block is common on Renesas RZ/G2L and RZ/V2L SoC's, so instead of adding dependency for each SoC's add dependency on ARCH_RZG2L. The ARCH_RZG2L config option is already selected by ARCH_R9A07G044 and ARCH_R9A07G054. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220406070315.13862-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-21iio:adc:ad7280a: Move out of stagingJonathan Cameron
This is a rather unusual device (in IIO anyway). However, it has a near to standard userspace ABI. Note the work to move this out of staging was done against a minimal QEMU model, which doesn't model all the features of the device. I have no intention to upstream the QEMU model as it was developed just to enable this driver cleanup. https://github.com/jic23/qemu/tree/ad7280a-hacks Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Link: https://lore.kernel.org/r/20220206190328.333093-21-jic23@kernel.org
2021-12-22Merge tag 'iio-for-5.17a' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: 1st set of IIO new device support, features and cleanup for 5.17 Includes some fixes that were either late breaking, low priority or complex enough to not be good to rush in late in the cycle. Tree rebased today to fix up some trivial issues + pull in a fix that was previously on the fixes-togreg branch. Vast majority have been in linux-next for some time now. New device support * adi,ad7293 - New driver and bindings for this Power Amplifier drain current controller. A complex device with various related monitoring functions. * adi,ad75513R - New driver and bindings for this combined ADC and DAC device. - A few follow up fixes. * adi,admv8818 - New driver (and type) for this 2-18GHz filter device. Includes bindings and ABI documentation to allow clk_notifier based auto adjustment of the filters in appropriate applications. * liteon,ltr501 - Support for the ltr303. ID and chip specific info table. * xilinx,ams - New generic firmware function fwnode_iomap() as used in this driver. - New driver and bindings for this ADC and on-chip sensors as found in various Xilinx devices. Core * Introduced IIO_VAL_INT_64 which uses val and val2 in IIO callbacks to form a 64 bit integer when higher precision needed. * Allow IIO_ENUM_AVAILABLE to be used with different shared values. * Fix a long term issue with scheduling whilst atomic when iio_trig_poll() is called but no trigger consumers are actually enabled and hence the trigger may be reenabled from the interrupt handler. Seen in the wild on the tsc2046. * Mark iio_device_type const. * buffer: Use a separate index variable to simplify code. * buffer-dma: Clear out unused struct iio_buffer_block * buffer-dmaengine: Switch to cheaper round_down() as power of 2 values. Tests/tools * format_value - Check against NULL returns from allocations in tests. - Add IIO_VAL_INT_64 test case. * event_monitor - Flush the output after event to given more consistent latency when tool output piped to other programs. Driver Features * axp20x - Add support for NTC thermistor channel and document TS pin binding. * arm,scmi - Add reading of raw channel values (using IIO_VAL_INT_64) * liteon,ltr501 - Add proximity-near-level support and dt-binding. Tree wide cleanup * Remove no-op trigger ops from multiple drivers. * Stop using dev_get_drvdata() on the iio_dev->dev in various drivers and then stop assigning it to allow this to be used for other purposes. We can always get to the indio_dev using dev_to_iio_dev() which is a container_of() based approach. Also cleanup up some related unnecessary convoluted cases. - atmel,at91-sam5d2 - nxp,imx7d - meas,ms5611 - st,st_sensors * Where available (or easy to introduce) use the scan_type.* values in place of a second copy for read_raw and similar paths. - adi,ad7266 - bosch,bma220 - fsl,mac3110 - fsl,mma7455 - fsl,mpl3115 - kionix,kcjk-1013 - sensortek,stk8ba50 - sensortek,stk8312 - ti,adc12138 - ti,ads1015 - vti,sca3000 - xilinx,xadc-core * Switch drives over to generic firmware properties including appropriate header changes to avoid including of.h - Various DACs had false CONFIG_OF dependencies. - dpot-dac - envelope-detector - adi,ad5755 - adi,ad5758 - capella,cm3605 - maxim,max9611 - microchip,mcp41010 - microchip,mcp3911 - ti,adc12138 * Trivial clang warning fixes for W=1 warnings. Driver specific cleanup and minor fixes * adi,ad7606 - Comment fixes. * ams,ad3935 - Drop pointless cast to the same type. * atmel,at91-sama5d2 - Fix wrong cast of iio_dev->dev to platform_device that happened to be harmless. * fsl,mma7660 - Stop i2c remove() function returning an error code. Part of a rework to eventually stop returning anything from these. * fsl,mma8452 - Use correct type for local irqreturn_t. * nxp,imx8mq - Maintainer email address update. * nxp,lpc18xx_adc - Ensure clk_prepare_enable() called before clk_get_rate(). - Switch of.h for mod_devicetable.h to reflect no of specific functions, just the id table. * renesas,rzg2l - Drop a dev_err() that just duplicates error printed in platform_get_irq() * sgx,vz89x - Drop pointless cast. * st,lsm6dsx - Make it possible to disable the sensorhub from DT to avoid a corner case where the address of a slave device many be accidentally modified. * st,stm32-adc - Stop leaking an of_node in an error path. * st,stmp2 - Avoid wrong sized type for bit field which could result in over-reading (harmless). Precursor to enabling -Warray-bounds. * ti,adc081c - Put back some ACPI support for non standards compliant ADC081C ID because it is known to be in the wild on some Aaeon boards. * ti,ads8688 - Cleanup redundant local ret variable assignment. * ti,ina2xx-adc - Use helper macro kthread_run() to replace some boilerplate. - Avoid double reference counting. - Drop pointless cast. * xilinx,xadc - Make the IRQ optional as not always wired to the host system. * tag 'iio-for-5.17a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (103 commits) iio: adc: ti-adc081c: Partial revert of removal of ACPI IDs iio:addac:ad74413r: Fix uninitialized ret in a path that won't be hit. MAINTAINERS: Add maintainer for xilinx-ams dt-bindings: iio: adc: Add Xilinx AMS binding documentation iio: adc: Add Xilinx AMS driver device property: Add fwnode_iomap() iio:accel:kxcjk-1013: Mark struct __maybe_unused to avoid warning. iio:accel:bmc150: Mark structure __maybe_unused as only needed with for pm ops. iio:dummy: Drop set but unused variable len. iio:magn:ak8975: Suppress clang W=1 warning about pointer to enum conversion. iio:imu:inv_mpu6050: Suppress clang W=1 warning about pointer to enum conversion. iio:imu:inv_icm42600: Suppress clang W=1 warning about pointer to enum conversion. iio:dac:mcp4725: Suppress clang W=1 warning about pointer to enum conversion. iio:amplifiers:hmc425a: Suppress clang W=1 warning about pointer to enum conversion. iio:adc:ti-ads1015: Suppress clang W=1 warning about pointer to enum conversion. iio:adc:rcar: Suppress clang W=1 warning about pointer to enum conversion. iio:adc:ina2xx-adc: Suppress clang W=1 warning about pointer to enum conversion. iio:accel:bma180: Suppress clang W=1 warning about pointer to enum conversion. drivers:iio:dac: Add AD3552R driver support dt-bindings: iio: dac: Add adi,ad3552r.yaml ...
2021-12-21iio: adc: Add Xilinx AMS driverAnand Ashok Dumbre
The AMS includes an ADC as well as on-chip sensors that can be used to sample external voltages and monitor on-die operating conditions, such as temperature and supply voltage levels. The AMS has two SYSMON blocks. PL-SYSMON block is capable of monitoring off chip voltage and temperature. PL-SYSMON block has DRP, JTAG and I2C interface to enable monitoring from an external master. Out of these interfaces currently only DRP is supported. Other block PS-SYSMON is memory mapped to PS. The AMS can use internal channels to monitor voltage and temperature as well as one primary and up to 16 auxiliary channels for measuring external voltages. The voltage and temperature monitoring channels also have event capability which allows to generate an interrupt when their value falls below or raises above a set threshold. Co-developed-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Anand Ashok Dumbre <anand.ashok.dumbre@xilinx.com> Link: https://lore.kernel.org/r/20211203212358.31444-4-anand.ashok.dumbre@xilinx.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-12-12iio:adc/dac:Kconfig: Update to drop OF dependencies.Jonathan Cameron
We could probably drop a lot more of these, but for now this removes unnecessary restrictions on stand alone ADC devices. For these 3 drivers the false dependency seems to date all the way back to their initial introduction. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2021-12-12iio:adc:ti-ads124s08: Drop dependency on OF.Jonathan Cameron
Nothing in this driver depends on OF firmware so drop the dependency and update the headers to remove the false impression such a dependency exists. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2021-11-17iio: imx8qxp-adc: fix dependency to the intended ARCH_MXC configLukas Bulwahn
Commit 1e23dcaa1a9f ("iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADC") adds the config IMX8QXP_ADC for this new driver, which depends on the non-existing config ARCH_MXC_ARM64. Hence, ./scripts/checkkconfigsymbols.py warns: ARCH_MXC_ARM64 Referencing files: drivers/iio/adc/Kconfig Probably, the existing config ARCH_MXC is intended to be referred here. So, repair the dependency to refer to that config. Fixes: 1e23dcaa1a9f ("iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADC") Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20211111083954.6286-1-lukas.bulwahn@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-19iio: adc: Kconfig: add COMPILE_TEST dep for berlin2-adcAlexandru Ardelean
Otherwise most build checks will omit this driver from a compile-test due to it's dependency only on the BERLIN_ARCH symbol. Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210926192642.4051329-2-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-19iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADCCai Huoqing
The NXP i.MX 8QuadXPlus SOC has a new ADC IP, so add driver support for this ADC. Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20210925020555.129-2-caihuoqing@baidu.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-17iio: adc: exynos: describe drivers in KConfigKrzysztof Kozlowski
Describe better which driver applies to which SoC, to make configuring kernel for Samsung SoC easier. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210924133515.112357-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-08-15iio: adc: Add driver for Renesas RZ/G2L A/D converterLad Prabhakar
Add ADC driver support for Renesas RZ/G2L A/D converter in SW trigger mode. A/D Converter block is a successive approximation analog-to-digital converter with a 12-bit accuracy and supports a maximum of 8 input channels. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20210804202118.25745-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-05-17iio: adc: add ADC driver for the TI TSC2046 controllerOleksij Rempel
Basically the TI TSC2046 touchscreen controller is 8 channel ADC optimized for the touchscreen use case. By implementing it as an IIO ADC device, we can make use of resistive-adc-touch and iio-hwmon drivers. Polled readings are currently not implemented to keep this patch small, so iio-hwmon will not work out of the box for now. So far, this driver was tested with a custom version of resistive-adc-touch driver, since it needs to be extended to make use of Z1 and Z2 channels. The X/Y are working without additional changes. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20210428073208.19570-4-o.rempel@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbolAlexandru Ardelean
Because a dependency on HAS_IOMEM and OF was added for the ADI AXI ADC driver, this makes the AD9467 driver have some build/dependency issues when OF is disabled (typically on ACPI archs like x86). This is because the selection of the AD9467 enforces the ADI_AXI_ADC symbol which is blocked by the OF (and potentially HAS_IOMEM) being disabled. To fix this, we make the AD9467 driver depend on the ADI_AXI_ADC symbol. The AD9467 driver cannot operate on it's own. It requires the ADI AXI ADC driver to stream data (or some similar IIO interface). So, the fix here is to make the AD9467 symbol depend on the ADI_AXI_ADC symbol. At some point this could become it's own subgroup of high-speed ADCs. Fixes: be24c65e9fa24 ("iio: adc: adi-axi-adc: add proper Kconfig dependencies") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20210324182746.9337-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07iio:adc: Fix trivial typoJonathan Cameron
"an" should be "and". Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20210401150810.227168-1-jic23@kernel.org
2021-03-26Merge tag 'iio-for-5.13a' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: 1st set of IIO/counter device support, features and cleanup in the 5.13 cycle Big set in here from Alexandru Ardelean enabling multiple buffer support. This includes providing a new directory per buffer that combines what was previously in buffer/ and scan_elements/. Old interfaces still in place for compatiblity. Note immuatable branch for scmi patches to allow for some significant rework going on in that subsystem. Merge required updating to reflect some changes in IIO. Late rebase to fix some wrong fixes tags due to some earlier rebases made necessary by messing up the immutable branch. IIO New Device Support * adi,ad5686 - Add info to support AD5673R and AD5677R * bosch,bmi088 - New driver supporting this accelerometer + gyroscope * cros_ec_mkbp - New driver for this proximity sensor that exposes a 'front' sensor. Very simple switch like device, but driver allows it to share interface with more sophisticated proximity sensors. * iio_scmi - New driver to support ARM SCMI protocol to expose underlying accelerometers and gyroscopes via this firmware interface. * st,st_magn - Add ID for IISMDC magnetometer. * ti,ads131e0 - New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs Counter New Device Support * IRQ or GPIO based counter - New driver for a conceptually simple counter that uses interrupts to perform the count. Features * core - Dual buffer supprt including: Various helpers to centralize handling of bufferer related elements. Document existing and new IOCTLs Register the IIO chrdev only if it can actually be used for anything. Rework attribute group creation in the core (lots of patches) Merge buffer/ and scan_elements/ entries into one list + maintain backwards compatible set. Introduce the internal logic and IOCTL to allow multiple buffers + access to an anon FD per buffer to actually read from it. Tidy up tools/iio/iio_generic_buffer and switch to new interfaces. Update ABI docs. A few follow up fixes, unsuprising as this was a huge bit of rework. - Move common case setting of trig->parent to the core. - Provide an iio_read_channel_processed_scale() to avoid loss of precision from iio_read_channel_processed() then applying integer scale. Use it in ntc_thermistor driver in hwmon. - Allow drivers to specify labels from elsewhere than DT. Use it for bmc150 and kxcjk-1013 labels related to position on 2 in one tablets. - Document label usage for proximity and accelerometer sensors. - Some local variable renames for consistency tools - Add -a parameter to iio_event_monitor to allow autoenabling of events. * acpi_als - Add trigger support for devices that don't support notification method. * adi,ad7124 - Allow more than 8 channels. This is a complex little device, but is capable of supporting up to 16 channels if the share certain configuration settings. * hrtimer-trigger - Support sampling frequency below 1Hz. * mediatek,mt8195-auxadc - Add compatible to binding docs (always also includes mt8173) * st,stm32-adc - Enable timetamps when not using DMA. * vishay,vcnl3020 - Sampling frequency control. Cleanup and minor fixes: * treewide - Use some getter and setter functions instead of opencoding. - Set of fixes for pointless casts in various drivers. - Avoid wrong kernel-doc marking on comment blocks. - Fix various other minor kernel-doc issues shown by W=1 * core - Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts. - Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0 - Add unit tests for iio_format_value() * docs - Fix formatting/typos in iio_configfs.rst and buffers.rst - Add documentation of index in buffers.rst - Fix scan element description - Avoid some issues with HTML generation from ABI docs by moving duplicated defintions to more generic files. - Drop reference to long dead mailing list. * 104-quad - Remove left over deprecated IIO counter ABI. * adi,adi-axi-adc - Fix wrong bit of docs. * adi,ad5791 - Typos * adi,ad9834 - Switch to device managed functions in probe. * adi,adis* - Add and use helpers for locking to reduced duplication. * adi,adis16480 - Fix calculation of sampling frequency when using pulse per second input. * adi,adis16475 - Calculate the IMU scaled internal sampling rate and runtime depending on sysfs based configuration rather than getting from DT. Drop now unnecessary property from DT bindings doc. * cros_ec - Fix result of a series of recent changes that means extended buffer attributes turn up in the wrong place. Too complex to revert the various patches unfortunately so this is a bit messy. * fsl,mma3452 - Indentation cleanup. * hid-sensors - Size of storage needs to increase for some parts when using quaternions. - Move the get sensistivity attribute to hid-sensors-common to reduce duplication. Enable it for more device types. - Correctly handle relative sensitivity if reported that way including documenting the new ABI. * maxim,max517 - Use device managed functions in probe. * mediatek,mt6360-adc - Use asm/unaligned.h instead of directly including unaligned/be_byteshift.h * novuton,npcm-adc - Local lock instead of missusing mlock. * semtech,sx9500 - Typos * st,sensor - typo fix * st,spear-adc - Local lock instead of missusing mlock. * st,stm32-adc - Long standing HAS_IOMEM dependency fix. * st,stm32-counter - Remove left over deprecated IIO counter ABI. * ti,palmas-adc - Local lock instead of missusing mlock. * ti,tmp007 - Switch to device managed functions in probe. Other * MAINTAINERS - Move Peter Meerwald-Stadler to Credits at his request * tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (119 commits) iio: acpi_als: Add trigger support iio: acpi_als: Add local variable dev in probe iio: acpi_als: Add timestamp channel iio: adc: ad7292: Modify the bool initialization assignment iio: cros: unify hw fifo attributes without API changes iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant iio: event_monitor: Enable events before monitoring dt-bindings: iio: adc: Add compatible for Mediatek MT8195 iio:magnetometer: Add Support for ST IIS2MDC dt-bindings: iio: st,st-sensors add IIS2MDC. staging: iio: ad9832: kernel-doc fixes iio:dac:max517.c: Use devm_iio_device_register() iio:cros_ec_sensors: Fix a wrong function name in kernel doc. iio: buffer: kfifo_buf: kernel-doc, typo in function name. iio: accel: sca3000: kernel-doc fixes. Missing - and wrong function names. iio: adc: adi-axi-adc: Drop false marking for kernel-doc iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name iio: dac: ad5504: fix wrong part number in kernel-doc structure name. iio: dac: ad5770r: kernel-doc fix case of letter R wrong in structure name iio: adc: ti-adc084s021: kernel-doc fixes, missing function names ...
2021-03-15Merge tag 'iio-fixes-for-5.12a' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO and counter fixes for the 5.12 cycle adi,ad7949 * Fix a wrong bitmask that could lead to an undefined bit being included. adi,adi-axi-adc * Add missing Kconfig dependencies adi,adis16400 * Wrong error code handling in adis16400 that could lead to failed probe. hid-sensor-humidity, temperature * Fix alignment and space for timestamp channel. hid-sensor-prox * Fix an issue with handling of exponent on the channel scaling. invensense,mpu3050 * Fix a hole in error handling. qcom,spi-vadc * Correct scaling st,ab8500-adc * Fix wrong scaling (by factor of 1000) st,stm32-adc * Add missing HAS_IOMEM dependency st,stm32-timer-cnt * Report count when running off internal clock * Fix issue with not checking ceiling before trying to write to hardware * Ensure driver doesn't have stashed state which doesn't match hardware by rereading from hardware in a slow path. * tag 'iio-fixes-for-5.12a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler iio: hid-sensor-temperature: Fix issues of timestamp channel iio: hid-sensor-humidity: Fix alignment issue of timestamp channel counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register counter: stm32-timer-cnt: fix ceiling write max value counter: stm32-timer-cnt: Report count function when SLAVE_MODE_DISABLED iio: adc: ab8500-gpadc: Fix off by 10 to 3 iio:adc:stm32-adc: Add HAS_IOMEM dependency iio: adis16400: Fix an error code in adis16400_initial_setup() iio: adc: adi-axi-adc: add proper Kconfig dependencies iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask iio: hid-sensor-prox: Fix scale not correct issue iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel
2021-03-11iio: adc: Add driver for Texas Instruments ADS131E0x ADC familyTomislav Denis
The ADS131E0x are a family of multichannel, simultaneous sampling, 24-bit, delta-sigma, analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference and an onboard oscillator. Datasheet: https://www.ti.com/lit/ds/symlink/ads131e08.pdf Signed-off-by: Tomislav Denis <tomislav.denis@avl.com> Link: https://lore.kernel.org/r/20210202084107.3260-2-tomislav.denis@avl.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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