- 21 Feb, 2022 34 commits
-
-
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:
Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20220214073810.781016-6-cosmin.tanislav@analog.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
-
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:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220214073810.781016-5-cosmin.tanislav@analog.comSigned-off-by:
-
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:
-
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:
-
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:
-
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:
-
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
-
Jonathan Cameron authored
The datasheet provides timings for operating this device at up to 105 degrees centigrade. Adopt these more conservative timings. Suggested-by:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
Jonathan Cameron authored
Given the irq is optional, let us remove the interfaces related to events when it is not present. Signed-off-by:
-
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:
-
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:
-
Jonathan Cameron authored
IIO uses the /* * stuff * more stuff */ multi-line style, so use that here as well. Signed-off-by:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
Jonathan Cameron authored
The combinations of either * pm_sleep_ptr() and DEFINE_SIMPLE_DEV_PM_OPS() * pm_ptr() and RUNTIME_PM_OPS()/SYSTEM_SLEEP_PM_OPS Make sure the functions are always visible to the compiler and removed by it rather than requring #ifdef magic. This removes the need to mark the functions as __maybe_unused and saves additional space with some build options as the dev_pm_ops structure itself can be dropped automatically if CONFIG_PM is not enabled. Signed-off-by:
Fabrice Gasnier <fabrice.gasnier@foss.st.com> Reviewed-by:
Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220130193147.279148-51-jic23@kernel.org
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Acked-by:
Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Acked-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Use the new DEFINE_RUNTIME_DEV_PM_OPS to reduce boilerplate. Removing instances of this approach from IIO also stops them being copied into new drivers. Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. The new DEFINE_RUNTIME_DEV_PM_OPS() macro reduces boilerplate. Reviewed-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM support is simpler and less error prone than the use of #ifdef based config guards. This case uses the new DEFINE_RUNTIME_DEV_PM_OPS() to reduce boilerplate. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
- 18 Feb, 2022 6 commits
-
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without one or more of CONFIG_PM/CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
Crt Mori <cmo@melexis.com> Reviewed-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without one or more of CONFIG_PM/CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Note that in this case the storage for saving state was protected by CONFIG_PM guards. The storage is very small and unlikely to make any real difference to the space allocated for state so just drop those guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by:
-
Jonathan Cameron authored
Letting the compiler remove these functions when the kernel is built without CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Acked-by:
Manivannan Sadhasivam <mani@kernel.org> Signed-off-by:
-
