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2020-04-20Merge tag 'iio-fixes-for-5.7a' of ↵Greg Kroah-Hartman5-44/+153
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: adc: ad7192: fix null pointer de-reference crash during probeAlexandru Ardelean1-16/+47
When the 'spi_device_id' table was removed, it omitted to cleanup/fix the assignment: 'indio_dev->name = spi_get_device_id(spi)->name;' After that patch 'spi_get_device_id(spi)' returns NULL, so this crashes during probe with null de-ref. This change fixes this by introducing an ad7192_chip_info struct, and defines all part-names [that should be assigned to indio_dev->name] in a 'ad7192_chip_info_tbl' table. With this change, the old 'st->devid' is also moved to be a 'chip_info->chip_id'. And the old 'ID_AD719X' macros have been renamed to 'CHIPID_AD719X'. Tld identifiers have been re-purposed to be enum/index values in the new 'ad7192_chip_info_tbl'. This should fix the bug, and maintain the ABI for the 'indio_dev->name' field. Fixes: 66614ab2be38 ("staging: iio: adc: ad7192: removed spi_device_id") Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: adc: ti-ads8344: properly byte swap valueAlexandre Belloni1-3/+3
The first received byte is the MSB, followed by the LSB so the value needs to be byte swapped. Also, the ADC actually has a delay of one clock on the SPI bus. Read three bytes to get the last bit. Fixes: 8dd2d7c0fed7 ("iio: adc: Add driver for the TI ADS8344 A/DC chips") Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: xilinx-xadc: Make sure not exceed maximum samplerateLars-Peter Clausen1-18/+60
The XADC supports a samplerate of up to 1MSPS. Unfortunately the hardware does not have a FIFO, which means it generates an interrupt for each conversion sequence. At one 1MSPS this creates an interrupt storm that causes the system to soft-lock. For this reason the driver limits the maximum samplerate to 150kSPS. Currently this check is only done when setting a new samplerate. But it is also possible that the initial samplerate configured in the FPGA bitstream exceeds the limit. In this case when starting to capture data without first changing the samplerate the system can overload. To prevent this check the currently configured samplerate in the probe function and reduce it to the maximum if necessary. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Fixes: bdc8cda1d010 ("iio:adc: Add Xilinx XADC driver") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: xilinx-xadc: Fix sequencer configuration for aux channels in ↵Lars-Peter Clausen1-0/+10
simultaneous mode The XADC has two internal ADCs. Depending on the mode it is operating in either one or both of them are used. The device manual calls this continuous (one ADC) and simultaneous (both ADCs) mode. The meaning of the sequencing register for the aux channels changes depending on the mode. In continuous mode each bit corresponds to one of the 16 aux channels. And the single ADC will convert them one by one in order. In simultaneous mode the aux channels are split into two groups the first 8 channels are assigned to the first ADC and the other 8 channels to the second ADC. The upper 8 bits of the sequencing register are unused and the lower 8 bits control both ADCs. This means a bit needs to be set if either the corresponding channel from the first group or the second group (or both) are set. Currently the driver does not have the special handling required for simultaneous mode. Add it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Fixes: bdc8cda1d010 ("iio:adc: Add Xilinx XADC driver") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: xilinx-xadc: Fix clearing interrupt when enabling triggerLars-Peter Clausen1-1/+1
When enabling the trigger and unmasking the end-of-sequence (EOS) interrupt the EOS interrupt should be cleared from the status register. Otherwise it is possible that it was still set from a previous capture. If that is the case the interrupt would fire immediately even though no conversion has been done yet and stale data is being read from the device. The old code only clears the interrupt if the interrupt was previously unmasked. Which does not make much sense since the interrupt is always masked at this point and in addition masking the interrupt does not clear the interrupt from the status register. So the clearing needs to be done unconditionally. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Fixes: bdc8cda1d010 ("iio:adc: Add Xilinx XADC driver") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: xilinx-xadc: Fix ADC-B powerdownLars-Peter Clausen1-2/+3
The check for shutting down the second ADC is inverted. This causes it to be powered down when it should be enabled. As a result channels that are supposed to be handled by the second ADC return invalid conversion results. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Fixes: bdc8cda1d010 ("iio:adc: Add Xilinx XADC driver") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-08Merge tag 'mfd-next-5.7' of ↵Linus Torvalds3-0/+267
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mfd updates from Lee Jones: "New Drivers: - Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors New Device Support: - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC - Add support for Comet Lake to Intel LPSS New Functionality: - Add support for Charger Detection to Spreadtrum SC27xx PMICs - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC - Add ACPI enumeration support to Diolan DLN2 USB Adaptor Fix-ups: - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847 - I2C registration; rn5t618 - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1 - Use flexible-array members; omap-usb-tll, qcom-pm8xxx - Remove unnecessary casts; omap-usb-host, omap-usb-tll - Power (suspend/resume/poweroff) enhancements; rk808 - Improve error/sanity checking; dln2 - Use snprintf(); aat2870-core Bug Fixes: - Fix PCI IDs in intel-lpss-pci" * tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits) mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow mfd: dln2: Allow to be enumerated via ACPI mfd: da9062: Add support for interrupt polarity defined in device tree dt-bindings: bd718x7: Yamlify and add BD71850 mfd: dln2: Fix sanity checking for endpoints mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs mfd: sc27xx: Add USB charger type detection support dt-bindings: mfd: Document STM32 low power timer bindings mfd: rk808: Convert RK805 to shutdown/suspend hooks mfd: rk808: Reduce shutdown duplication mfd: rk808: Stop using syscore ops mfd: rk808: Ensure suspend/resume hooks always work mfd: rk808: Always use poweroff when requested mfd: omap: Remove useless cast for driver.name mfd: Kconfig: Fix some misspelling of the word functionality mfd: pm8xxx: Replace zero-length array with flexible-array member mfd: omap-usb-tll: Replace zero-length array with flexible-array member mfd: cpcap: Fix compile if MFD_CORE is not selected mfd: cros_ec: Check DT node for usbpd-notify add ...
2020-03-28iio: adc: stm32-adc: fix sleep in atomic contextOlivier Moysan1-3/+28
This commit fixes the following error: "BUG: sleeping function called from invalid context at kernel/irq/chip.c" In DMA mode suppress the trigger irq handler, and make the buffer transfers directly in DMA callback, instead. Fixes: 2763ea0585c9 ("iio: adc: stm32: add optional dma support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-28iio:ad7797: Use correct attribute_groupYueHaibing1-1/+1
It should use ad7797_attribute_group in ad7797_info, according to commit ("iio:ad7793: Add support for the ad7796 and ad7797"). Scale is fixed for the ad7796 and not programmable, hence should not have the scale_available attribute. Fixes: fd1a8b912841 ("iio:ad7793: Add support for the ad7796 and ad7797") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-27iio: adc: rn5t618: Add ADC driver for RN5T618/RC5T619Andreas Kemnade3-0/+267
Both chips have an A/D converter capable of measuring things like VBAT, VUSB and analog inputs. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-23staging: iio: adc: ad7192: Re-indent enum labelsDeepak R Varma1-2/+2
Re-indent enum labels as per coding style guidelines. Problem detected by checkpatch script. Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com> Link: https://lore.kernel.org/r/5c6bef6462d135b748f58f8c2645c60234482f52.1584904896.git.mh12gx2825@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-23Merge 5.6-rc7 into staging-nextGreg Kroah-Hartman2-33/+25
We need the staging/iio fixes in here as well Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18Merge tag 'iio-fixes-for-5.6a' of ↵Greg Kroah-Hartman2-33/+25
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO fixes in the 5.6 cycle. * adxl372 - Fix marking of buffered values as big endian. * ak8974 - Fix wrong handling of negative values when read from sysfs. * at91-sama5d2 - Fix differential mode by ensuring configuration set correctly. * ping - Use the write sensor type for of_ping_match table. * sps30 - Kconfig build dependency fix. * st-sensors - Fix a wrong identification of which part the SMO8840 ACPI ID indicates. * stm32-dsfdm - Fix a sleep in atomic issue by not using a trigger when it makes no sense. * stm32-timer - Make sure master mode is disabled when stopping. * vcnl400 - Update some sampling periods based on new docs. * tag 'iio-fixes-for-5.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: iio: ping: set pa_laser_ping_cfg in of_ping_match iio: chemical: sps30: fix missing triggered buffer dependency iio: st_sensors: remap SMO8840 to LIS2DH12 iio: light: vcnl4000: update sampling periods for vcnl4040 iio: light: vcnl4000: update sampling periods for vcnl4200 iio: accel: adxl372: Set iio_chan BE iio: magnetometer: ak8974: Fix negative raw values in sysfs iio: trigger: stm32-timer: disable master mode when stopping iio: adc: stm32-dfsdm: fix sleep in atomic context iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode
2020-03-08iio: adc: ti-tlc4541: Use new structure for SPI transfer delaysSergiu Cuciurean1-1/+2
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: adc: mcp320x: Use new structure for SPI transfer delaysSergiu Cuciurean1-1/+2
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: adc: max1118: Use new structure for SPI transfer delaysSergiu Cuciurean1-2/+8
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: adc: ad9292: Use new structure for SPI transfer delaysSergiu Cuciurean1-1/+4
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: adc: exynos: Silence warning about regulators during deferred probeMarek Szyprowski1-2/+4
Don't confuse user with meaningless warning about the failure in getting regulators in case of deferred probe. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08staging: iio: adc: ad7192: move out of stagingAlexandru Tachici3-0/+1047
Move ad7192 ADC driver out of staging into mainline. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: adc: ad7124: Add direct reg accessMircea Caprioru1-0/+30
This patch adds the posibility do read and write registers from userspace using the kernel debug direct register access option. Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: adc: modify NPCM reset supportTomer Maimon1-21/+9
Modify NPCM ADC reset support from direct register access to reset controller support. please make sure to modify NPCM adc device tree parameters as described at nuvoton,npcm-adc.txt document for using this change. Note for anyone noting that this is a breaking change, this is on a BMC and effectively in a close ecosystem so it is fine to rely on DT and kernel being updated together. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: adc: ad7124: add 3db filterAlexandru Tachici1-1/+68
This patch adds the LOW_PASS_FILTER_3DB_FREQUENCY attribute in iio_chan_spec for each channel. The used filters are sinc3 or sinc4. The filter type with the highest output data rate is used when setting a low pass frequency in the channel's sysfs. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-02iio: adc: stm32-dfsdm: fix sleep in atomic contextOlivier Moysan1-33/+10
This commit fixes the error message: "BUG: sleeping function called from invalid context at kernel/irq/chip.c" Suppress the trigger irq handler. Make the buffer transfers directly in DMA callback, instead. Push buffers without timestamps, as timestamps are not supported in DFSDM driver. Fixes: 11646e81d775 ("iio: adc: stm32-dfsdm: add support for buffer modes") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-02iio: adc: at91-sama5d2_adc: fix differential channels in triggered modeEugen Hristev1-0/+15
The differential channels require writing the channel offset register (COR). Otherwise they do not work in differential mode. The configuration of COR is missing in triggered mode. Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support") Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-31iio: adc: qcom-vadc-common: use <linux/units.h> helpersAkinobu Mita2-4/+3
This switches the qcom-vadc-common to use milli_kelvin_to_millicelsius() in <linux/units.h>. Link: http://lkml.kernel.org/r/1576386975-7941-13-git-send-email-akinobu.mita@gmail.com Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: Amit Kucheria <amit.kucheria@verdurent.com> Cc: Andy Shevchenko <andy@infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Darren Hart <dvhart@infradead.org> Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jean Delvare <jdelvare@suse.com> Cc: Jens Axboe <axboe@fb.com> Cc: Johannes Berg <johannes.berg@intel.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: Keith Busch <kbusch@kernel.org> Cc: Luca Coelho <luciano.coelho@intel.com> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Sujith Thomas <sujith.thomas@intel.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-22Merge 5.5-rc7 into staging-nextGreg Kroah-Hartman1-7/+5
We want the staging fixes in here as well Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-18iio: adc: stm32-adc: don't print an error on probe deferralEtienne Carriere1-3/+6
Do not print an error trace when deferring probe for some resource. Signed-off-by: Etienne Carriere <etienne.carriere@st.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-18iio: adc: ad7124: Set IRQ type to fallingAlexandru Tachici1-1/+1
Ad7124 data-sheet specifies that the falling edge of the DOUT line should be used for an interrupt. The current irq flag (IRQF_TRIGGER_LOW) used will cause unwanted behaviour. When enabling the interrupt it will fire once because the DOUT line is already low. This will make the driver to read an unfinished conversion from the chip. This patch sets the irq type to the one specified in the data-sheet. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-18iio: adc: ad-sigma-delta: Allow custom IRQ flagsAlexandru Tachici5-1/+6
Before this patch the ad_sigma_delta implementation hardcoded the irq trigger type to low, assuming that all Sigma-Delta ADCs have the same interrupt-type. This patch allows all drivers using the ad_sigma_delta layer to set the irq trigger type to the one specified in the datasheet. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-14iio: adc: stm32-dfsdm: adapt sampling rate to oversampling ratioOlivier Moysan1-13/+19
Update sampling rate when oversampling ratio is changed through the IIO ABI. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-14iio: adc: stm32-dfsdm: fix single conversionOlivier Moysan1-0/+2
Apply data formatting to single conversion, as this is already done in continuous and trigger modes. Fixes: 102afde62937 ("iio: adc: stm32-dfsdm: manage data resolution in trigger mode") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Cc: <Stable@vger.kernel.org> Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-13iio: adc: ad7124: Fix DT channel configurationAlexandru Tachici1-7/+5
This patch fixes device tree channel configuration. ad7124 driver reads channels configuration from the device tree. It expects to find channel specifications as child nodes. Before this patch ad7124 driver assumed that the child nodes are parsed by for_each_available_child_of_node in the order 0,1,2,3... This is wrong and the real order of the children can be seen by running: dtc -I fs /sys/firmware/devicetree/base on the machine. For example, running this on an rpi 3B+ yields the real children order: 4,2,0,7,5,3,1,6 Before this patch the driver assigned the channel configuration like this: - 0 <- 4 - 1 <- 2 - 2 <- 0 ........ For example, the symptoms can be observed by connecting the 4th channel to a 1V tension and then reading the in_voltage0-voltage19_raw sysfs (multiplied of course by the scale) one would see that channel 0 measures 1V and channel 4 measures only noise. Now the driver uses the reg property of each child in order to correctly identify to which channel the parsed configuration belongs to. Fixes b3af341bbd966: ("iio: adc: Add ad7124 support") Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-12iio: adc: at91-sama5d2_adc: Use dma_request_chan() instead ↵Peter Ujfalusi1-3/+3
dma_request_slave_channel() dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. The dma_request_chan() is the standard API to request slave channel, clients should be moved away from the legacy API to allow us to retire them. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-12iio: adc: stm32-adc: Use dma_request_chan() instead dma_request_slave_channel()Peter Ujfalusi1-2/+14
dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-12iio: adc: stm32-dfsdm: Use dma_request_chan() instead ↵Peter Ujfalusi1-4/+17
dma_request_slave_channel() dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Olivier Moysan <olivier.moysan@st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-10Merge tag 'iio-for-5.6a' of ↵Greg Kroah-Hartman19-355/+1136
git://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 5.6 cycle New device support * ad7091r5 ADC - New driver with follow up patch adding scale and vref support. - DT bindings * ad7923 - Support for ad7908, ad7918 and ad7928 added to driver. * bma180 - Support the BMA254 accelerometer. Required fairly substantial rework to allow for small differences between this an existing parts. * bma400 accelerometer - New driver with follow up patch for regulator support. - DT bindings. * asc dlhl60d - New driver support this range of pressure and temperature sensors. - DT bindings. * ltc2496 ADC - New driver to support this ADC. - Split the existing LTC2497 driver generic component out and reuse. - DT bindings. * parallax ping - New driver supporting ultrasonic and laser tof distance sensors. - Bindings for these sensors. New features * core - New char type for read_raw returns, used for thermocouple types. - Rename read_first_n callback to read. The reasons behind the original naming are lost to the mists of time. * ad799x - Allow pm_ops to disable device completely allowing regulator power down. * bma180 - Enable basic regulator support. * dmaengine buffer - Report platform data alignment requirements via new ABI. * max31856 - Add option to set mains filter rejection frequency and document new in_temp_filter_notch_center_frequency ABI. - Add support for configuring HW averaging (oversampling ratio) - Add runtime configuration of thermocouple type and document new ABI. * maxim-thermocouple - Add read only access to thermocouple type using new ABI, includes adding more specific compatibles to reflect which variant of the chip is being used. * mpu6050 - Provide option to support the PMU9150 in package magnetometer directly rather than via auxiliary bus. * stm32_adc - Add overrun interrupt checks to detect if this happens. * st_lsm6dsx - Enable the sensor-hub support for lsm6dsm. Includes various reworks to allow this. Cleanups and minor fixes * Subsystem wide - Tidy up indentation in Kconfig and fix alphabetical order of AD7091R5. - Drop linux/gpio.h and linux/of_gpio.h from drivers that don't use them. * ad7266 - Convert to GPIO descriptors. * ad7303 - Avoid a dance with checking if the regulator is supplied by just using the optional request interface. * ad7887 - Simplify channel specification assignment to enable adding more devices. * ad7923 - Drop some unused and largely pointless defines of BOB_N==N variety. - Tidy up checkpatch warnings. - Add missing of_device_id table. * adf4350 - Convert to GPIO descriptors. * ak8975 - Convert to GPIO descriptors. * ADIS library and drivers - Expand scope of txrx_lock to cover all state and rename as state_lock - Add unlocked read / write to allow grouping of consecutive calls under single lock / unlock. - Add unlocked check_status, reset to allow grouping under single lock / unlock. - Remove remaining uses of core mlock for local state protection. mlock should never be used directly as it protects tightly defined core IIO device management state. * adis16240 - Enforce only supported SPI mode on driver load + add DT binding doc. * atlas-ph-sensor - Rename to atlas-sensor given it now covers things beyond ph sensors. * bma180 - Use local dev variable to tidy up code. - Use c99 style explicity .member assignment to make driver more readable. * bmp280 - Drop ACPI support. No evidence this was used and appropriate ID is not registered. - Allow ACPI to bind device via PRP0001 * dmaengine buffer - Use dma_request_chan instead of dma_request_slave_channel_reason as that ABI is going away. - Add module info to avoid tainting the kernel. * hts221 - Avoid magic number defines when only used to fill structure elements that are self describing. * lm3533 - Drop a stray semicolon. * max9611 - Cleanup enum handling to be more resilient to future changes. * mpu6050 - Delete MPU9150 from supported SPI devices as doesn't provide SPI. - Select I2C_MUX again after kbuild issue fixed elsewhere. * stm32-timer - Drop an unnecessary register update. * ssp_sensors - Convert to GPIO descriptors. * st_sensors - drop !CONFIG_ACPI defines as ACPI_PTR() will stop them being used anyway. - Make default platform data structures __maybe_unsued. - Fill in some missing kernel-doc function parameters. * st_lsm6dsx - white space fixes. - Mark some constants that aren't always used as __maybe_unused. - Drop of ID table guards as they just pervent use under ACPI. - Switch to device properties to allow ACPI usage. * st_uvis25 - Drop acpi.h include as no ACPI APIs used. * ti-ads1015 - Drop legacy platform data as no one seems to be using it. - Use the device property API instead of OF specific. * ti-ads7950 - typo fix in error message. * tag 'iio-for-5.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (99 commits) iio: accel: bma180: BMA254 support iio: pressure: bmp280: Allow device to be enumerated from ACPI iio: pressure: bmp280: Drop ACPI support dt-bindings: iio: adc: convert sd modulator to json-schema iio: buffer: rename 'read_first_n' callback to 'read' iio: buffer-dmaengine: Report buffer length requirements bindings: iio: pressure: Add documentation for dlh driver dt-bindings: Add asc vendor iio: pressure: Add driver for DLH pressure sensors iio: buffer-dmaengine: Add module information iio: accel: bma180: Use explicit member assignment iio: accel: bma180: Basic regulator support iio: accel: bma180: Add dev helper variable iio: imu: st_lsm6dsx: enable sensor-hub support for lsm6dsm iio: imu: st_lsm6dsx: rename st_lsm6dsx_shub_read_reg in st_lsm6dsx_shub_read_output iio: imu: st_lsm6dsx: check if shub_output reg is located in primary page iio: imu: st_lsm6dsx: check if pull_up is located in primary page iio: imu: st_lsm6dsx: check if master_enable is located in primary page iio: imu: st_lsm6dsx: export max num of slave devices in st_lsm6dsx_shub_settings iio: light: remove unneeded semicolon ...
2019-12-29iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928Daniel Junho1-4/+44
The ad7928 is software compatible with the ad7923. The ad7908 and ad7918 are the 8 and 10-bit versions of the ad7928. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Add of_device_id tableDaniel Junho1-0/+10
Accomplish device tree compatibility to driver AD7923 by adding of_device_id table and making a subsequent call to MODULE_DEVICE_TABLE. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Fix checkpatch warningDaniel Junho1-1/+1
Fix checkpatch warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' +static int ad7923_scan_direct(struct ad7923_state *st, unsigned ch) Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Remove the unused definesDaniel Junho1-4/+0
Removes the unused define AD7923_CHANNEL_x from the code. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: new driver to support Linear technology's ltc2496Uwe Kleine-König3-0/+119
This chip is similar to the LTC2497 ADC, it just uses SPI instead of I2C and so has a slightly different protocol. Only the actual hardware access is different. The spi protocol is different enough to not be able to map the differences via a regmap. Also generalize the entry in MAINTAINER to cover the newly introduced file. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: ltc2497: split protocol independent part in a separate moduleUwe Kleine-König4-209/+288
This allows to share most of this driver for the ltc2496 driver added in the next commit that is an SPI variant of the ltc2497. Initially I named the generic part ltc249x, but wild card names are frowned upon, so the generic part is called ltc2497-core even though it's not obvious that this is then to be reused for the ltc2496 driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: ti-ads1015: Make use of device property APIAndy Shevchenko1-31/+26
Make use of device property API in this driver so that both OF based system and ACPI based system can use this driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: ti-ads1015: Get rid of legacy platform dataAndy Shevchenko1-10/+8
Platform data is a legacy interface to supply device properties to the driver. In this case we even don't have in-kernel users for it. Just remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: ti-ads7950: Fix a typo in an error messageChristophe JAILLET1-1/+1
Fix a typo: s/get get/to get/ Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: stm32-adc: Add check on overrun interruptFabrice Gasnier3-9/+69
Enable overrun interrupt on STM32 ADC. In case data register hasn't been read (by CPU or DMA), overrun condition is detected when there's new conversion data available. Stop grabbing data and log an error message. Use a threaded irq to avoid printing the error message from hard irq context. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: Move AD7091R5 entry in a alphabetical order in MakefileBeniamin Bia2-8/+8
Ad7091R5 was added in a non alphabetical order after AD7124 in Makefile and KConfig. This patch fixes that and place Ad7091R5 before AD7124. Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: ad7266: Convert to use GPIO descriptorsLinus Walleij1-17/+12
The AD7266 have no in-tree users making use of the platform data mechanism to pass address GPIO lines when not using a fixed address, so we can easily convert this to use GPIO descriptors instead of the platform data integers currently passed. Lowercase the labels "ad0".."ad2" as this will make a better fit for platform descriptions like device tree that prefer lowercase names such as "ad0-gpios" rather than "AD0-gpios". Board files and other static users of this device can pass the same GPIO descriptors using machine descriptor tables if need be. Cc: Alison Schofield <amsfield22@gmail.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-15iio: adc: ad799x: add pm_ops to disable the device completelyMarco Felsch1-6/+60
The device is always in a low-power state due to the hardware design. It wakes up upon a conversion request and goes back into the low-power state. The pm ops are added to disable the device completely and to free the regulator. Disbaling the device completely should be not that notable but freeing the regulator is important. Because if it is a shared power-rail the regulator won't be disabled during suspend-to-ram/disk and so all devices connected to that rail keeps on. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 12:59:38 +0300