- 26 Feb, 2022 10 commits
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Jagath Jog J authored
Maxim DS3502 is a 7 bit nonvolatile digital potentiometer. Add DS3502 binding into trivial-devices.yaml. Signed-off-by:
Jagath Jog J <jagathjog1996@gmail.com> Acked-by:
Rob Herring <robh@kernel.org> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220223163525.13399-8-jagathjog1996@gmail.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Jagath Jog J authored
The DS3502 is a 7-bit, nonvolatile digital potentiometer featuring an output voltage range of up to 15.5V. DS3502 support is added into existing DS1803 driver. Datasheet: https://datasheets.maximintegrated.com/en/ds/DS3502.pdfSigned-off-by:
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Jagath Jog J authored
Added function pointer in the device specific structure to call the appropriate device read_raw function, so that the other type of devices with different read method can be handled. Signed-off-by:
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Jagath Jog J authored
Using firmware provided data to get the device specific structure if not available fall back to id->driver_data. Signed-off-by:
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Jagath Jog J authored
Adding each device wiper count and channel information into device private data. Utilizing addr member of struct iio_chan_spec to get the wiper register address so that the value can be read or write to the same address. Signed-off-by:
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Jagath Jog J authored
Adding available functionality for DS1803 driver which will show the minimum, step and maximum values that the driver can accepts through sysfs entry. Now using the max value present in avail array instead of chip type specific macro to make the driver flexible to add other type of potentiometer with different max position value. Signed-off-by:
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Jagath Jog J authored
Fix following checkpatch.pl check by removing blank space. CHECK: Alignment should match open parenthesis. Signed-off-by:
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Nathan Chancellor authored
Clang warns: drivers/iio/accel/adxl367.c:887:2: error: variable 'handled' is uninitialized when used here [-Werror,-Wuninitialized] handled |= adxl367_push_event(indio_dev, status); ^~~~~~~ drivers/iio/accel/adxl367.c:879:14: note: initialize the variable 'handled' to silence this warning bool handled; ^ = 0 1 error generated. This should have used '=' instead of '|='; make that change to resolve the warning. Fixes: cbab791c ("iio: accel: add ADXL367 driver") Link: https://github.com/ClangBuiltLinux/linux/issues/1605Reported-by:kernel test robot <lkp@intel.com> Reported-by:
Colin Ian King <colin.i.king@gmail.com> Signed-off-by:
Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20220224211034.625130-1-nathan@kernel.orgSigned-off-by:
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Dan Carpenter authored
This error path needs to call the mutex_unlock(&st->lock) before returning. Fixes: cbab791c ("iio: accel: add ADXL367 driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20220224150228.GB6856@kiliSigned-off-by:
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Christophe JAILLET authored
Use devm_delayed_work_autocancel() instead of hand writing it. This is less verbose and saves a few lines of code. devm_delayed_work_autocancel() uses devm_add_action() instead of devm_add_action_or_reset(). This is fine, because if the underlying memory allocation fails, no work has been scheduled yet. So there is nothing to undo. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by:
Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/2626e6a057e40cd2271ef0e5f81d12e607bad5b4.1644776929.git.christophe.jaillet@wanadoo.frSigned-off-by:
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- 21 Feb, 2022 30 commits
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Antoniu Miclaus authored
Add myself as maintainer for the ADMV1014 driver. Signed-off-by:
Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20220215081216.67706-4-antoniu.miclaus@analog.comSigned-off-by:
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Antoniu Miclaus authored
Add documentation for the use of the Digital Attenuator gain. Signed-off-by:
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Antoniu Miclaus authored
Add device tree bindings for the ADMV1014 Upconverter. Signed-off-by:
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Antoniu Miclaus authored
The ADMV1014 is a silicon germanium (SiGe), wideband, microwave downconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz frequency range. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV1014.pdfSigned-off-by:
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Cosmin Tanislav authored
The ADXL367 is an ultralow power, 3-axis MEMS accelerometer. The ADXL367 does not alias input signals to achieve ultralow power consumption, it samples the full bandwidth of the sensor at all data rates. Measurement ranges of +-2g, +-4g, and +-8g are available, with a resolution of 0.25mg/LSB on the +-2 g range. In addition to its ultralow power consumption, the ADXL367 has many features to enable true system level power reduction. It includes a deep multimode output FIFO, a built-in micropower temperature sensor, and an internal ADC for synchronous conversion of an additional analog input. Signed-off-by:
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Cosmin Tanislav authored
The ADXL367 is an ultralow power, 3-axis MEMS accelerometer. The ADXL367 does not alias input signals to achieve ultralow power consumption, it samples the full bandwidth of the sensor at all data rates. Measurement ranges of +-2g, +-4g, and +-8g are available, with a resolution of 0.25mg/LSB on the +-2 g range. In addition to its ultralow power consumption, the ADXL367 has many features to enable true system level power reduction. It includes a deep multimode output FIFO, a built-in micropower temperature sensor, and an internal ADC for synchronous conversion of an additional analog input. Signed-off-by:
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Cosmin Tanislav authored
It might be impossible to configure other attributes (e.g.: events, scale, sampling rate) if they impact the currently active buffer capture session. On ADXL367, writing to register before 0x2E requires the device to be placed in standby mode, otherwise the changes might be effective for only part of a measurement. To ensure this requirement, the configuration attributes of the IIO device try to claim direct mode before switching to standby mode. During a buffer capture, direct mode cannot be claimed, and the attribute write callback returns -EBUSY. Describe this behavior in the buffer/enable attribute description. Signed-off-by:
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Cosmin Tanislav authored
Some accelerometers that support activity and inactivity events also support a referenced mode, in which the gravitational acceleration is taken as a point of reference before comparing the acceleration to the specified activity and inactivity magnitude. For example, in the case of the ADXL367, for activity detection, the formula is: abs(acceleration - reference) > magnitude Add a new event type that makes this behavior clear. Signed-off-by:
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Cosmin Tanislav authored
Some accelerometers that support activity and inactivity events also support a referenced mode, in which the gravitational acceleration is taken as a point of reference before comparing the acceleration to the specified activity and inactivity magnitude. For example, in the case of the ADXL367, for activity detection, the formula is: abs(acceleration - reference) > magnitude Add a new event type that makes this behavior clear. Signed-off-by:
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Jan Luebbe authored
This family of ADCs uses SPI, not I2C. Signed-off-by:
Jan Luebbe <jlu@pengutronix.de> Link: https://lore.kernel.org/r/20220216162312.4064-1-jlu@pengutronix.deSigned-off-by:
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Jonathan Cameron authored
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-hacksSigned-off-by:
Marcelo Schmitt <marcelo.schmitt1@gmail.com> Link: https://lore.kernel.org/r/20220206190328.333093-21-jic23@kernel.org
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Jonathan Cameron authored
The datasheet provides timings for operating this device at up to 105 degrees centigrade. Adopt these more conservative timings. Suggested-by:
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Jonathan Cameron authored
Making the local storage of the Cell Balance mask a simple bitmap and then shifting it only at time of register write simplifies several code paths. Suggested-by:
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Jonathan Cameron authored
Very minimal ABI docs. This is unusual enough that I'd expect anyone who actually wanted to touch them to go look at the datasheet. Signed-off-by:
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Jonathan Cameron authored
Add a binding for this Lithium Ion Battery monitoring chip/chain of chips as it is now clean and ready to move out of staging. Signed-off-by:
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Jonathan Cameron authored
This functionality is intended to allow for a few temperature sensors to be missing (and hence not worth reading) on the final device in a chain. The ones removed are 3 and 5 (unlike for the ADC channels where it is 4 and 5). The datasheet includes a foot note 3 to Table 12 that makes this complex to support. "(3) To remove AUX5 or AUX5 and AUX3 from the alert detection, conversions on three auxiliary ADC input channels only must be selected in the control register." This mode has never been supported by the driver. As this support would be complex to add and the rework is being done against a QEMU model developed for the purposes of verifying nothing is broken, it is better to drop this support for now. Reported-by:
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Jonathan Cameron authored
Convert all the device specific info that was previously in platform data over to generic firmware query interfaces. dt-bindings to follow shortly. Signed-off-by:
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Jonathan Cameron authored
We use this a few times already and it is about to get worse, so introduce a local variable to simplify things. Signed-off-by:
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Jonathan Cameron authored
Given the irq is optional, let us remove the interfaces related to events when it is not present. Signed-off-by:
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Jonathan Cameron authored
Drop used includes, add a few missing ones and reorder. The include-what-you-use tool output was considered in making this change. Signed-off-by:
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Jonathan Cameron authored
Oversampling has nothing directly to do with analog circuits or similar so belongs in the control of userspace as a policy decision. The only complexity in here was that the acquisition time needs updating if this setting is changed at runtime (as oversampling is time consuming). Signed-off-by:
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Jonathan Cameron authored
IIO uses the /* * stuff * more stuff */ multi-line style, so use that here as well. Signed-off-by:
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Jonathan Cameron authored
The driver doesn't support buffered mode, so a timestamp channel that is entirely hidden from userspace without buffer mode is rather pointless. Drop it. Signed-off-by:
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Jonathan Cameron authored
The *_balance_switch_en and *_balance_switch_timer attributes had non standard prefixes. Use the ext_info framework to automatically create then with in_voltageX-voltageY_ prefix. Documentation for these two unusual attributes to follow. Signed-off-by:
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Jonathan Cameron authored
This driver had a slightly non standard events ABI but there seems to be no reason for not doing it with the core support for rising and falling events on the two types of channels. In theory the events on different daisy chained chips could be at different levels, but the driver has never supported this and it doesn't seem likely to be used so let us ignore that option. Includes reordering so that we only set the software cached value of the thresholds if the hardware write succeeds. Signed-off-by:
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Jonathan Cameron authored
The write and two types of read transfer are sufficiently complex that they benefit from the clarity of using FIELD_PREP() and FIELD_GET(). This also applies to the handling in ad7280_event_handler() so use a similar approach there as well. Signed-off-by:
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Jonathan Cameron authored
As the __cacheline_aligned will ensure that the first of these two buffers is appropriate aligned, there is no need to keep them as a single array which is confusing given the first element is always tx and the second rx. Hence let us just have two parts and name them separately. Signed-off-by:
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Jonathan Cameron authored
This avoids possible confusion with read back of the channel conversions. These two types of reads are of difference sizes with resulting differences in the data layout of the response from the hardware. Signed-off-by:
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Jonathan Cameron authored
1. Postfix register addresses with _REG to distinguish them from fields within the registers 2. Switch to using FIELD_PREP and masks to aid readability. 3. Shorten a few defines to make the lines remain a sensible length. 4. Fix an issue whether where an CTRL_LB field is set in CTRL_HB. 5. Fix wrong AUX1_3_4 which should be AUX_1_3_5 according to table 14 in the datasheet. Signed-off-by:
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Jonathan Cameron authored
The bit reversal was wrong for bits 1 and 3 of the 5 bits. Result is driver failure to probe if you have more than 2 daisy-chained devices. Discovered via QEMU based device emulation. Fixes tag is for when this moved from a macro to a function, but it was broken before that. Signed-off-by:
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