Commit b4b6cc10 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge tag 'iio-for-6.7a' of...

Merge tag 'iio-for-6.7a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.7

Particularly great to see a resolver driver move out of staging via a
massive set of changes.  Only took 13 years :)

One small patch added then reverted due to a report of test breakage
(ashai-kasei,ak8975: Drop deprecated enums.)

An immutable branch was used for some hid-senors changes in case
there was a need to take them into the HID tree as well.

New device support
-----------------

adi,hmc425a
  - Add support for HMC540SLP3E broadband 4-bit digital attenuator.
kionix,kx022a
  - Add support for the kx132-1211 accelerometer. Require significant
    driver rework to enable this including add a chip type specific
    structure to deal with the chip differences.
  - Add support for the kx132acr-lbz accelerometer (subset of the kx022a
    feature set).
lltc,ltc2309
  - New driver for this 8 channel ADC.
microchip,mcp3911
  - Add support for rest of mcp391x family of ADCs (there are various
    differences beyond simple channel count variation.
    Series includes some general driver cleanup.
microchip,mcp3564
  - New driver for MCP3461, MCP3462, MCP3464, MCP3541, MCP3562, MCP3564
    and their R variants of 16/24bit ADCs. A few minor fixed followed.
rohm,bu1390
  - New driver for this pressure sensor.

Staging graduation
------------------

adi,ad1210 (after 13 or so years :)
  - More or less a complete (step-wise) rewrite of this resolver driver
    to bring it up to date with modern IIO standards.  The fault signal
    handling mapping to event channels was particularly complex and
    significant part of the changes.

Features
--------

iio-core
 - Add chromacity and color temperature channel types.
adi,ad7192
  - Oversampling ratio control (called fast settling in datasheet).
adi,adis16475
  - Add core support and then driver support for delta angle and delta
    velocity channels. These are intended for summation to establish
    angle and velocity changes over larger timescales.  Fix was
    needed for alignment after the temperature channel.  Further fix
    reduced set of devices for which the buffer support was applicable
    as seems burst reads don't cover these on all devices.
hid-sensors-als
  - Chromacity and color temperatures support including in amd sfh.
stx104
  - Add support for counter subsystem to this multipurpose device.
ti,twl6030
  - Add missing device tree binding description.

Clean up and minor fixes.
------------------------

treewide
  - Drop some unused declarations across IIO.
  - Make more use of device_get_match_data() instead of OF specific
    approaches.
Similar cleanup to sets of drivers.
  - Stop platform remove callbacks returning anything by using the
    temporary remove_new() callback.
  - Use i2c_get_match_data() to cope nicely with all types of ID table
    entry.
  - Use device_get_match_data() for various platform device to cope
    with more types of firmware.
  - Convert from enum to pointer in ID tables allowing use of
    i2c_get_match_data().
  - Fix sorting on some ID tables.
  - Include specific string helper headers rather than simply string_helpers.h
docs
  - Better description of the ordering requirements etc for
    available_scan_masks.
tools
  - Handle alignment of mixed sizes where the last element isn't the biggest
    correctly. Seems that doesn't happen often!
adi,ad2s1210
  - Lots of work from David Lechner on this driver including a few fixes
    that are going with the rework to avoid slowing that down.
adi,ad4310
  - Replace deprecated devm_clk_register()
adi,ad74413r
  - Bring the channel function setting inline with the datasheet.
adi,ad7192
  - Change to FIELD_PREP(), FIELD_GET().
  - Calculate f_order from the sinc filter and chop filter states.
  - Move more per chip config into data in struct ad7192_chip_info
  - Cleanup unused parameter in channel macros.
adi,adf4350
  - Make use of devm_* to simplify error handling for many of the setup
    calls in probe() / tear down in remove() and error paths.  Some more
    work to be done on this one.
  - Use dev_err_probe() for errors in probe() callback.
adi,adf4413
  - Typo in function name prefix.
adi,adxl345
  - Add channel scale to the chip type specific structure and drop
    using a type field previously used for indirection.
asahi,ak8985
  - Fix a mismatch introduced when switching from enum->pointers
    in the match tables.
amlogic,meson
  - Expand error logging during probe.
invensense,mpu6050
  - Support level-shifter control. Whilst no one is sure exactly what this
    is doing it is needed for some old boards.
  - Document mount-matrix dt-binding.
mediatek,mt6577
  - Use devm_clk_get_enabled() to replace open coded version and move
    everything over to being device managed. Drop now empty remove()
    callback. Fix follows to put the drvdata back.
  - Use dev_err_probe() for error reporting in probe() callback.
memsic,mxc4005
  - Add of_match_table.
microchip,mcp4725
  - Move various chip specific data from being looked up by chip ID to
    data in the chip type specific structure.
silicon-labs,si7005
  - Add of_match_table and entry in trivial-devices.yaml
st,lsm6dsx
  - Add missing mount-matrix dt binding documentation.
st,spear
  - Use devm_clk_get_enabled() and some other devm calls to move everything
    over to being device managed.  Drop now empty remove() callback.
  - Use dev_err_probe() to better handled deferred probing and tidy up
    error reporting in probe() callback.
st,stm32-adc
  - Add a bit of additional checking in probe() to protect against a NULL
    pointer (no known path to trigger it today).
  - Replace deprecated strncpy()
ti,ads1015
  - Allow for edge triggers.
  - Document interrupt in dt-bindings.

* tag 'iio-for-6.7a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (201 commits)
  iio: Use device_get_match_data()
  iio: adc: MCP3564: fix warn: unsigned '__x' is never less than zero.
  dt-bindings: trivial-devices: add silabs,si7005
  iio: si7005: Add device tree support
  drivers: imu: adis16475.c: Remove scan index from delta channels
  dt-bindings: iio: imu: st,lsm6dsx: add mount-matrix property
  iio: resolver: ad2s1210: remove of_match_ptr()
  iio: resolver: ad2s1210: remove DRV_NAME macro
  iio: resolver: ad2s1210: move out of staging
  staging: iio: resolver: ad2s1210: simplify code with guard(mutex)
  staging: iio: resolver: ad2s1210: clear faults after soft reset
  staging: iio: resolver: ad2s1210: refactor sample toggle
  staging: iio: resolver: ad2s1210: remove fault attribute
  staging: iio: resolver: ad2s1210: add label attribute support
  staging: iio: resolver: ad2s1210: add register/fault support summary
  staging: iio: resolver: ad2s1210: implement fault events
  iio: event: add optional event label support
  staging: iio: resolver: ad2s1210: rename DOS reset min/max attrs
  staging: iio: resolver: ad2s1210: convert DOS mismatch threshold to event attr
  staging: iio: resolver: ad2s1210: convert DOS overrange threshold to event attr
  ...
parents f7572e93 89a1d2f0
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+75 −0
Original line number Diff line number Diff line
@@ -279,6 +279,35 @@ Description:
		but should match other such assignments on device).
		Units after application of scale and offset are m/s^2.

What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw
KernelVersion:	6.5
Contact:	linux-iio@vger.kernel.org
Description:
		Angular displacement between two consecutive samples on x, y or
		z (may be arbitrarily assigned but should match other such
		assignments on device).
		In order to compute the total angular displacement during a
		desired period of time, the application should sum-up the delta
		angle samples acquired during that time.
		Units after application of scale and offset are radians.

What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw
KernelVersion:	6.5
Contact:	linux-iio@vger.kernel.org
Description:
		The linear velocity change between two consecutive samples on x,
		y or z (may be arbitrarily assigned but should match other such
		assignments on device).
		In order to compute the total linear velocity change during a
		desired period of time, the application should sum-up the delta
		velocity samples acquired during that time.
		Units after application of scale and offset are meters per
		second.

What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
KernelVersion:	4.17
@@ -461,6 +490,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
@@ -1332,6 +1363,12 @@ Description:
What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_en
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_en
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_en
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
@@ -1362,6 +1399,8 @@ Description:
		Scan element control for triggered data capture.

What:		/sys/.../iio:deviceX/bufferY/in_accel_type
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_type
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_type
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
What:		/sys/.../iio:deviceX/bufferY/in_magn_type
What:		/sys/.../iio:deviceX/bufferY/in_incli_type
@@ -1416,6 +1455,12 @@ What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index
What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_index
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_index
What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_index
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index
What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
@@ -2179,3 +2224,33 @@ Contact: linux-iio@vger.kernel.org
Description:
		Number of conditions that must occur, during a running
		period, before an event is generated.

What:		/sys/bus/iio/devices/iio:deviceX/in_colortemp_raw
KernelVersion:	6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Represents light color temperature, which measures light color
		temperature in Kelvin.

What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
KernelVersion:	6.7
Contact:	linux-iio@vger.kernel.org
Description:
		The x and y light color coordinate on the CIE 1931 chromaticity
		diagram.

What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label
What:		/sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label
KernelVersion:	6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Optional symbolic label to a device channel event.
		If a label is defined for this event add that to the event
		specific attributes. This is useful for userspace to be able to
		better identify an individual event.
+53 −0
Original line number Diff line number Diff line
What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain
KernelVersion:	6.4
Contact:	linux-iio@vger.kernel.org
Description:
		This attribute is used to set the gain of the biasing current
		circuit of the Delta-Sigma modulator. The different BOOST
		settings are applied to the entire modulator circuit, including
		the voltage reference buffers.

What:		/sys/bus/iio/devices/iio:deviceX/boost_current_gain_available
KernelVersion:	6.4
Contact:	linux-iio@vger.kernel.org
Description:
		Reading returns a list with the possible gain values for
		the current biasing circuit of the Delta-Sigma modulator.

What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_mux_enable
KernelVersion:	6.4
Contact:	linux-iio@vger.kernel.org
Description:
		This attribute is used to enable the analog input multiplexer
		auto-zeroing algorithm (the input multiplexer and the ADC
		include an offset cancellation algorithm that cancels the offset
		contribution of the ADC). When the offset cancellation algorithm
		is enabled, ADC takes two conversions, one with the differential
		input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
		conversion time is multiplied by two compared to the default
		case where the algorithm is disabled. This technique allows the
		cancellation of the ADC offset error and the achievement of
		ultra-low offset without any digital calibration. The resulting
		offset is the residue of the difference between the two
		conversions, which is on the order of magnitude of the noise
		floor. This offset is effectively canceled at every conversion,
		so the residual offset error temperature drift is extremely low.
		Write '1' to enable it, write '0' to disable it.

What:		/sys/bus/iio/devices/iio:deviceX/auto_zeroing_ref_enable
KernelVersion:	6.4
Contact:	linux-iio@vger.kernel.org
Description:
		This attribute is used to enable the chopping algorithm for the
		internal voltage reference buffer. This setting has no effect
		when external voltage reference is selected.
		Internal voltage reference buffer injects a certain quantity of
		1/f noise into the system that can be modulated with the
		incoming input signals and can limit the SNR performance at
		higher Oversampling Ratio values (over 256). To overcome this
		limitation, the buffer includes an auto-zeroing algorithm that
		greatly reduces (cancels out) the 1/f noise and cancels the
		offset value of the reference buffer. As a result, the SNR of
		the system is not affected by this 1/f noise component of the
		reference buffer, even at maximum oversampling ratio values.
		Write '1' to enable it, write '0' to disable it.
+27 −0
Original line number Diff line number Diff line
What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max
KernelVersion:  6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Reading returns the current Degradation of Signal Reset Maximum
		Threshold value in millivolts. Writing sets the value.

What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max_available
KernelVersion:  6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Reading returns the allowable voltage range for
		in_altvoltage0_mag_rising_reset_max.

What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min
KernelVersion:  6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Reading returns the current Degradation of Signal Reset Minimum
		Threshold value in millivolts. Writing sets the value.

What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min_available
KernelVersion:  6.7
Contact:	linux-iio@vger.kernel.org
Description:
		Reading returns the allowable voltage range for
		in_altvoltage0_mag_rising_reset_min.
+9 −5
Original line number Diff line number Diff line
@@ -4,19 +4,23 @@
$id: http://devicetree.org/schemas/iio/accel/kionix,kx022a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ROHM/Kionix KX022A Accelerometer
title: ROHM/Kionix KX022A, KX132-1211 and KX132ACR-LBZ Accelerometers

maintainers:
  - Matti Vaittinen <mazziesaccount@gmail.com>

description: |
  KX022A is a 3-axis accelerometer supporting +/- 2G, 4G, 8G and 16G ranges,
  output data-rates from 0.78Hz to 1600Hz and a hardware-fifo buffering.
  KX022A can be accessed either via I2C or SPI.
  KX022A, KX132ACR-LBZ and KX132-1211 are 3-axis accelerometers supporting
  +/- 2G, 4G, 8G and 16G ranges, variable output data-rates and a
  hardware-fifo buffering. These accelerometers can be accessed either
  via I2C or SPI.

properties:
  compatible:
    const: kionix,kx022a
    enum:
      - kionix,kx022a
      - kionix,kx132-1211
      - rohm,kx132acr-lbz

  reg:
    maxItems: 1
+15 −5
Original line number Diff line number Diff line
@@ -4,12 +4,21 @@
$id: http://devicetree.org/schemas/iio/adc/lltc,ltc2497.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Linear Technology / Analog Devices LTC2497 ADC
title: Linear Technology / Analog Devices LTC2497 and LTC2309 ADC

maintainers:
  - Michael Hennerich <michael.hennerich@analog.com>
  - Liam Beguin <liambeguin@gmail.com>

description: |
  LTC2309:
    low noise, low power, 8-channel, 12-bit successive approximation ADC with an
    I2C compatible serial interface.

    https://www.analog.com/media/en/technical-documentation/data-sheets/2309fd.pdf

  LTC2497:
  LTC2499:
    16bit ADC supporting up to 16 single ended or 8 differential inputs.
    I2C interface.

@@ -19,6 +28,7 @@ description: |
properties:
  compatible:
    enum:
      - lltc,ltc2309
      - lltc,ltc2497
      - lltc,ltc2499

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