Several on-running cleanup efforts dominate this time, plus the DMA
safety alignment issue identified due to improved understanding of
the restrictions as a result of Catalin Marinas' efforts in that area.
One immutable branch in here due to MFD and SPMI elements needed for
the qcom-rradc driver.
Device support
* bmi088
- Add support for bmi085 (accelerometer part of IMU)
- Add support for bmi090l (accelerometer part of IMU)
* mcp4922
- Add support for single channel device MCP4921
* rzg2l-adc
- Add compatible and minor tweaks to support RZ/G2UL ADC
* sca3300
- Add support for scl3300 including refactoring driver to support
multiple device types and cleanup noticed whilst working on driver.
* spmi-rradc
- New driver for Qualcomm SPMI Round Robin ADC including necessary
additional utility functions in SPMI core and related MFD driver.
* ti-dac55781
- Add compatible for DAC121C081 which is very similar to existing parts.
Features
* core
- Warn on iio_trigger_get() on an unregistered IIO trigger.
* bma400
- Triggered buffer support
- Activity and step counting
- Misc driver improvements such as devm and header ordering
* cm32181
- Add PM support.
* cros_ec
- Sensor location support
* sx9324
- Add precharge resistor setting
- Add internal compensation resistor setting
- Add CS idle/sleep mode.
* sx9360
- Add precharge resistor setting
* vl53l0x
- Handle reset GPIO, regulator and relax handling of irq type.
Cleanup and minor fixes:
Treewide changes
- Cleanup of error handling in remove functions in many drivers.
- Update dt-binding maintainers for a number of ADI bindings.
- Several sets of conversion of drivers from device tree specific to
generic device properties. Includes fixing up various related
header and Kconfig issues.
- Drop include of of.h from iio.h and fix up drivers that need to include
it directly.
- More moves of clusters of drivers into appropriate IIO_XXX namespaces.
- Tree wide fix of a long running bug around DMA safety requirements.
IIO was using __cacheline_aligned to pad iio_priv() structures. This
worked for a long time by coincidence, but correct alignment is
ARCH_KMALLOC_MINALIGN. As there is activity around this area, introduce
an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
than every driver in future. Note, there have been no reports of this
bug in the wild, and it may not happen on any platforms supported by
upstream, so no rush to backport these fixes.
Other cleanup
* core
- Switch to ida_alloc()/free()
- Drop unused iio_get_time_res()
- Octal permissions and DEVICE_ATTR_* macros.
- Cleanup bared unsigned usage.
* MAINTAINERS
- Add include/dt-bindings/iio/ to the main IIO entry.
* ad5380
- Comment syntax fix.
* ad74413r
- Call to for_each_set_bit_from(), with from value as 0 replaced.
* ad7768-1
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* adxl345
- Fix wrong address in dt-binding example.
* adxl367
- Drop extra update of FIFO watermark.
* at91-sama5d2
- Limit requested watermark to the hwfifo size.
* bmg160, bme680
- Typos
* cio-dac
- Switch to iomap rather than direct use of ioports
* kxsd9
- Replace CONFIG_PM guards with new PM macros that let the compiler
cleanly remove the unused code and structures when !CONFIG_PM
* lsm6dsx
- Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
to Namespace.
* meson_saradc - general cleanup.
- Avoid attaching resources to iio_dev->dev
- Use same struct device for all error messages
- Convert to dev_err_probe() and use local struct device *dev to
reduce code complexity.
- Use devm_clk_get_optional() instead of hand rolling.
- Use regmap_read_poll_timeout() instead of hand rolling.
* mma7660
- Drop ACPI_PTR() use that is unhelpful.
* mpu3050
- Stop exporting symbols not used outside of module
- Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
* ping
- Typo fix
* qcom-spmi-rradc
- Typo fix
* sc27xx
- Convert to generic struct u32_fract
* srf08
- Drop a redundant check on !val
* st_lsm6dsx
- Limit the requested watermark to the hwfifo size.
* stm32-adc
- Use generic_handle_domain_irq() instead of opencoding.
- Fix handling of ADC disable.
* stm32-dac
- Use str_enabled_disable() instead of open coding.
* stx104
- Switch to iomap rather than direct use of ioports
* tsc2046
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* tsl2563
- Replace flush_scheduled_work() with cancel_delayed_work_sync()
- Replace cancel_delayed_work() with cancel_delayed_work_sync()
* vl53l0x
- Make the VDD regulator optional by allowing a dummy regulator.
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Merge tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
IIO new device support, features and minor fixes for 5.20
Several on-running cleanup efforts dominate this time, plus the DMA
safety alignment issue identified due to improved understanding of
the restrictions as a result of Catalin Marinas' efforts in that area.
One immutable branch in here due to MFD and SPMI elements needed for
the qcom-rradc driver.
Device support
* bmi088
- Add support for bmi085 (accelerometer part of IMU)
- Add support for bmi090l (accelerometer part of IMU)
* mcp4922
- Add support for single channel device MCP4921
* rzg2l-adc
- Add compatible and minor tweaks to support RZ/G2UL ADC
* sca3300
- Add support for scl3300 including refactoring driver to support
multiple device types and cleanup noticed whilst working on driver.
* spmi-rradc
- New driver for Qualcomm SPMI Round Robin ADC including necessary
additional utility functions in SPMI core and related MFD driver.
* ti-dac55781
- Add compatible for DAC121C081 which is very similar to existing parts.
Features
* core
- Warn on iio_trigger_get() on an unregistered IIO trigger.
* bma400
- Triggered buffer support
- Activity and step counting
- Misc driver improvements such as devm and header ordering
* cm32181
- Add PM support.
* cros_ec
- Sensor location support
* sx9324
- Add precharge resistor setting
- Add internal compensation resistor setting
- Add CS idle/sleep mode.
* sx9360
- Add precharge resistor setting
* vl53l0x
- Handle reset GPIO, regulator and relax handling of irq type.
Cleanup and minor fixes:
Treewide changes
- Cleanup of error handling in remove functions in many drivers.
- Update dt-binding maintainers for a number of ADI bindings.
- Several sets of conversion of drivers from device tree specific to
generic device properties. Includes fixing up various related
header and Kconfig issues.
- Drop include of of.h from iio.h and fix up drivers that need to include
it directly.
- More moves of clusters of drivers into appropriate IIO_XXX namespaces.
- Tree wide fix of a long running bug around DMA safety requirements.
IIO was using __cacheline_aligned to pad iio_priv() structures. This
worked for a long time by coincidence, but correct alignment is
ARCH_KMALLOC_MINALIGN. As there is activity around this area, introduce
an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
than every driver in future. Note, there have been no reports of this
bug in the wild, and it may not happen on any platforms supported by
upstream, so no rush to backport these fixes.
Other cleanup
* core
- Switch to ida_alloc()/free()
- Drop unused iio_get_time_res()
- Octal permissions and DEVICE_ATTR_* macros.
- Cleanup bared unsigned usage.
* MAINTAINERS
- Add include/dt-bindings/iio/ to the main IIO entry.
* ad5380
- Comment syntax fix.
* ad74413r
- Call to for_each_set_bit_from(), with from value as 0 replaced.
* ad7768-1
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* adxl345
- Fix wrong address in dt-binding example.
* adxl367
- Drop extra update of FIFO watermark.
* at91-sama5d2
- Limit requested watermark to the hwfifo size.
* bmg160, bme680
- Typos
* cio-dac
- Switch to iomap rather than direct use of ioports
* kxsd9
- Replace CONFIG_PM guards with new PM macros that let the compiler
cleanly remove the unused code and structures when !CONFIG_PM
* lsm6dsx
- Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
to Namespace.
* meson_saradc - general cleanup.
- Avoid attaching resources to iio_dev->dev
- Use same struct device for all error messages
- Convert to dev_err_probe() and use local struct device *dev to
reduce code complexity.
- Use devm_clk_get_optional() instead of hand rolling.
- Use regmap_read_poll_timeout() instead of hand rolling.
* mma7660
- Drop ACPI_PTR() use that is unhelpful.
* mpu3050
- Stop exporting symbols not used outside of module
- Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
* ping
- Typo fix
* qcom-spmi-rradc
- Typo fix
* sc27xx
- Convert to generic struct u32_fract
* srf08
- Drop a redundant check on !val
* st_lsm6dsx
- Limit the requested watermark to the hwfifo size.
* stm32-adc
- Use generic_handle_domain_irq() instead of opencoding.
- Fix handling of ADC disable.
* stm32-dac
- Use str_enabled_disable() instead of open coding.
* stx104
- Switch to iomap rather than direct use of ioports
* tsc2046
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* tsl2563
- Replace flush_scheduled_work() with cancel_delayed_work_sync()
- Replace cancel_delayed_work() with cancel_delayed_work_sync()
* vl53l0x
- Make the VDD regulator optional by allowing a dummy regulator.
* tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (244 commits)
iio: adc: xilinx-xadc: Drop duplicate NULL check in xadc_parse_dt()
iio: adc: xilinx-xadc: Make use of device properties
iio: light: cm32181: Add PM support
iio: adc: ad778-1: do not explicity set INDIO_BUFFER_TRIGGERED mode
iio: adc: ti-tsc2046: do not explicity set INDIO_BUFFER_TRIGGERED mode
iio: adc: stm32-adc: disable adc before calibration
iio: adc: stm32-adc: make safe adc disable
iio: dac: ad5380: align '*' each line and drop unneeded blank line
iio: adc: qcom-spmi-rradc: Fix spelling mistake "coherrency" -> "coherency"
iio: Don't use bare "unsigned"
dt-bindings: iio: dac: mcp4922: expand for mcp4921 support
iio: dac: mcp4922: add support to mcp4921
iio: chemical: sps30: Move symbol exports into IIO_SPS30 namespace
iio: pressure: bmp280: Move symbol exports to IIO_BMP280 namespace
iio: imu: bmi160: Move exported symbols to IIO_BMI160 namespace
iio: adc: stm32-adc: Use generic_handle_domain_irq()
proximity: vl53l0x: Make VDD regulator actually optional
MAINTAINERS: add include/dt-bindings/iio to IIO SUBSYSTEM AND DRIVERS
dt-bindings: iio/accel: Fix adi,adxl345/6 example I2C address
iio: gyro: bmg160: Fix typo in comment
...
The 0 value used for INV_CHIP_ICM42600 was not working since the
match in i2c/spi was checking against NULL value.
To keep this check, add a first INV_CHIP_INVALID 0 value as safe
guard.
Fixes: 31c24c1e93 ("iio: imu: inv_icm42600: add core of new inv_icm42600 driver")
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20220609102301.4794-1-jmaneyrol@invensense.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Partial fix for this driver as a second instance was introduced in
a later patch.
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition.
Fixes: a095fadb44 ("iio: imu: inv_icm42600: add gyroscope IIO device")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-78-jic23@kernel.org
Add a timestamping mechanism for buffer that provides accurate
event timestamps when using watermark. This mechanism estimates
device internal clock by comparing FIFO interrupts delta time and
device elapsed time computed by parsing FIFO data.
Take interrupt timestamp in hard irq handler and add IIO device
specific timestamp structures in device private allocation.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add all FIFO parsing and reading functions. Add accel and gyro
kfifo buffer and FIFO data parsing. Use device interrupt for
reading data FIFO and launching accel and gyro parsing.
Support hwfifo watermark by multiplexing gyro and accel settings.
Support hwfifo flush.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add INT1 interrupt support. Support interrupt edge and level,
active high or low. Push-pull or open-drain configurations.
Interrupt will be used to read data from the FIFO.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Core component of a new driver for InvenSense ICM-426xx devices.
It includes registers definition, main probe/setup, and device
utility functions.
ICM-426xx devices are latest generation of 6-axis IMU,
gyroscope+accelerometer and temperature sensor. This device
includes a 2K FIFO, supports I2C/I3C/SPI, and provides
intelligent motion features like pedometer, tilt detection,
and tap detection.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Greg Kroah-Hartman