Commit Graph

520 Commits

Author SHA1 Message Date
Anshul Dalal
cdf3ecb0d8 iio: dac: driver for MCP4821
Adds driver for the MCP48xx series of DACs.

Device uses a simplex SPI channel. To set the value of an output channel,
a 16-bit data of following format must be written:

Bit field | Description
15 [MSB]  | Channel selection bit
            0 -> Channel A
            1 -> Channel B
13        | Output Gain Selection bit
            0 -> 2x Gain (Vref = 4.096V)
            1 -> 1x Gain (Vref = 2.048V)
12        | Output Shutdown Control bit
            0 -> Shutdown the selected channel
            1 -> Active mode operation
11-0 [LSB]| DAC Input Data bits
            Value's big endian representation is taken as input for the
            selected DAC channel. For devices with a resolution of less
            than 12-bits, only the x most significant bits are considered
            where x is the resolution of the device.
Reference: Page#22 [MCP48x2 Datasheet]

Supported devices:
  +---------+--------------+-------------+
  | Device  |  Resolution  |   Channels  |
  |---------|--------------|-------------|
  | MCP4801 |     8-bit    |      1      |
  | MCP4802 |     8-bit    |      2      |
  | MCP4811 |    10-bit    |      1      |
  | MCP4812 |    10-bit    |      2      |
  | MCP4821 |    12-bit    |      1      |
  | MCP4822 |    12-bit    |      2      |
  +---------+--------------+-------------+

Devices tested:
  MCP4821 [12-bit single channel]
  MCP4802 [8-bit dual channel]

Tested on Raspberry Pi Zero 2W

Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/22244B.pdf #MCP48x1
Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/20002249B.pdf #MCP48x2
Signed-off-by: Anshul Dalal <anshulusr@gmail.com>
Link: https://lore.kernel.org/r/20231220151954.154595-2-anshulusr@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-21 17:04:42 +00:00
Michael Hennerich
e737d495b2 iio: dac: ad5791: Add support for controlling RBUF via devicetree
This patch adds support for an external amplifier to be connected in a
gain of two configuration.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20231129-ad5791-michael-stuff-v3-2-48e192b00909@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-04 13:19:48 +00:00
Greg Kroah-Hartman
b4b6cc10c6 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.
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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
  ...
2023-10-20 07:54:15 +02:00
Rob Herring
89a1d2f064 iio: Use device_get_match_data()
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231006224440.442864-1-robh@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-10-14 17:18:36 +01:00
Uwe Kleine-König
cf22fc5566 iio: dac: vf610: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230919174931.1417681-34-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-23 15:06:55 +01:00
Uwe Kleine-König
85a32a0ae2 iio: dac: stm32-dac: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230919174931.1417681-33-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-23 15:06:55 +01:00
Uwe Kleine-König
b5821e6038 iio: dac: stm32-dac-core: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230919174931.1417681-32-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-23 15:06:55 +01:00
Uwe Kleine-König
b4785a25a9 iio: dac: lpc18xx_dac: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230919174931.1417681-31-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-23 15:06:55 +01:00
Uwe Kleine-König
3de9b07295 iio: dac: dpot-dac: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230919174931.1417681-30-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-23 15:06:55 +01:00
Biju Das
c377e2febd iio: dac: mcp4725: Add dac_reg_offset to struct mcp4725_chip_info
The MCP4725 has a register offset '3' for reading DAC value compared to
'4' for MCP4726. Add dac_reg_offset variable to struct mcp4725_chip_info
to handle this difference.

Drop chip_id from struct mcp4725_chip_info as it is unused.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230903115548.59306-5-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:04 +01:00
Biju Das
155da070b4 iio: dac: mcp4725: Add use_ext_ref_voltage to struct mcp4725_chip_info
The MCP4725 has external voltage reference compared MCP4725 which
has reference embeedded in eeprom. Add use_ext_ref_voltage variable
to struct mcp4725_chip_info to handle this difference.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230903115548.59306-4-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:04 +01:00
Biju Das
18bdc686c1 iio: dac: mcp4725: Use i2c_get_match_data()
Add struct mcp4725_chip_info with chan_spec and chip_id variable.
After this simplify probe() by replacing device_get_match_data() and id
lookup for retrieving match data by i2c_get_match_data() by converting
enum->pointer for data in the match table.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230903115548.59306-3-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:04 +01:00
Biju Das
002d546fff iio: dac: mcp4725: Replace variable 'id' from struct mcp4725_data
Replace the variable 'id' from struct mcp4725_data with local variable
chip_id in probe() as the id variable is not used elsewhere in the
driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230903115548.59306-2-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:04 +01:00
Andy Shevchenko
8c337436e6 iio: dac: stm32-dac: Use correct header(s) instead of string_helpers.h
There is nothing from string_helpers.h used in the driver, correct
the header inclusion block accordingly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230808164137.66663-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:03 +01:00
Marcelo Schmitt
9a85653ed3 iio: dac: ad3552r: Correct device IDs
Device IDs for AD3542R and AD3552R were swapped leading to unintended
collection of DAC output ranges being used for each design.
Change device ID values so they are correct for each DAC chip.

Fixes: 8f2b54824b ("drivers:iio:dac: Add AD3552R driver support")
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Reported-by: Chandrakant Minajigi <Chandrakant.Minajigi@analog.com>
Link: https://lore.kernel.org/r/011f480220799fbfabdd53896f8a2f251ad995ad.1691091324.git.marcelo.schmitt1@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-11 20:12:59 +01:00
Biju Das
541d803abf iio: dac: ti-dac5571: Sort match tables
Sort ID table alphabetically by name and OF table by compatible
for single_*bit enums.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20230818173907.323640-3-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-11 20:12:41 +01:00
Biju Das
17dc571687 iio: dac: ti-dac5571: Use i2c_get_match_data()
Replace device_get_match_data() and id lookup for retrieving match data
by i2c_get_match_data() by converting enum->pointer for data in the
match table.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230818173907.323640-2-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-11 20:12:41 +01:00
Andrea Collamati
7b24a034ad iio: add MCP4728 I2C DAC driver
MCP4728 is a 12-bit quad channel DAC with I2C interface.

support for:
 * per-channel gain
 * per-channel power state
 * per-channel power down mode control
 * per-channel vref selection internal/vdd
 * store current state to on-chip EEPROM

Signed-off-by: Andrea Collamati <andrea.collamati@gmail.com>
Link: https://lore.kernel.org/r/a0933003ed3c855f9d80d6ce0a40add2b6f0ba36.1691066050.git.andrea.collamati@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-08-05 19:29:39 +01:00
Greg Kroah-Hartman
269b9d8faf 1st set of IIO new device support, features and cleanup for the 6.5 cycle.
New device support
 - honeywell,mprls0025pa
   * New driver and dt-bindings for this series of pressure sensors.
 - invensense,mpu6050
   * Add support for ICM 20600 IMU (ID, bindings and device data).
 - melexis,mlx90614
   * Add support for mlx90615 Infra Red Thermometer after driver cleanup
     and refactoring to support the differences in this device.
 - renesas,x9250
   * New driver and bindings for this quad potentiometer.
 - rockchip,saradc
   * Add support for RK3588. Also included is a bunch of refactoring and
     cleanup for that driver.
 - rohm,bu27008
   * New driver bindings etc for this 5 photodiode color sensor.
 - st,lsm9ds0/st,st-sensors
   * ID added for LSM303D accelerometer and magnetometer including ACPI binding.
 - ti,opt4001
   * New driver and bindings for this ambient light sensor.
 
 Features
 - core
   * Introduce iio_validate_own_trigger() for cases where a driver can only
     consumer a trigger it registered (detected via same parent device).
     Use it in the kionix,kx022a driver and new rohm,by27008 driver.
 - dynaimage,al3320a
   * ACPI binding CALS0001 seen on Lenovo Yoga Table 2 devices.
 - kionix,kx002a
   * Enable asynchronous probe.
 - rohm,bu27034
   * Enable asynchronous probe.
 - ti,tmp006
   * Explicit support for DT including binding documentation.
 
 Cleanups, minor fixes and misc improvements.
 - treewide
   * Switch I2C drivers from probe_new() back to probe() - part of the
     long process of getting rid of a parameter from probe()
   * Various whitespace and typo fixes not otherwise called out.
 - core
   * industrialio-buffer,Style cleanup.
   * Add documentation to extend_name field of struct iio_chan_spec to
     direct people using it towards the label infrastructure instead.
     extend_name was a design mistake a long time back so directly people
     away from it may be useful.
 - adi,ad7606
   * Add HAS_IOPORT dependency to prepare for some Kconfig changes.
 - bosch,bma400
   * Drop pointless print of ret in a dev_err_probe() message.
 - invensense,icm42600
   * Rework timestamp handling to reduce jitter.
 - mediatek,mt7986-auxdac
   * Add DT binding for this part.
 - qcom,spmi-vadc
   * Allow for 1/16th prescaling used on a few devices.
   * Various changes to channel labeling and naming, including dropping
     use of fwnode_name which generates odd channel names. Small ABI
     change as a result, but not thought to be a problem for users of this
     platform.
 - st,lsm6dsx
   * dt-binding: Use common schema for mount-matrix via a reference.
 - st,stm32
   * Add a debug print for when legacy channel config is used.
 - ti,palmas-adc
   * Drop unused i2c.h include.
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Merge tag 'iio-for-6.5a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

1st set of IIO new device support, features and cleanup for the 6.5 cycle.

New device support
- honeywell,mprls0025pa
  * New driver and dt-bindings for this series of pressure sensors.
- invensense,mpu6050
  * Add support for ICM 20600 IMU (ID, bindings and device data).
- melexis,mlx90614
  * Add support for mlx90615 Infra Red Thermometer after driver cleanup
    and refactoring to support the differences in this device.
- renesas,x9250
  * New driver and bindings for this quad potentiometer.
- rockchip,saradc
  * Add support for RK3588. Also included is a bunch of refactoring and
    cleanup for that driver.
- rohm,bu27008
  * New driver bindings etc for this 5 photodiode color sensor.
- st,lsm9ds0/st,st-sensors
  * ID added for LSM303D accelerometer and magnetometer including ACPI binding.
- ti,opt4001
  * New driver and bindings for this ambient light sensor.

Features
- core
  * Introduce iio_validate_own_trigger() for cases where a driver can only
    consumer a trigger it registered (detected via same parent device).
    Use it in the kionix,kx022a driver and new rohm,by27008 driver.
- dynaimage,al3320a
  * ACPI binding CALS0001 seen on Lenovo Yoga Table 2 devices.
- kionix,kx002a
  * Enable asynchronous probe.
- rohm,bu27034
  * Enable asynchronous probe.
- ti,tmp006
  * Explicit support for DT including binding documentation.

Cleanups, minor fixes and misc improvements.
- treewide
  * Switch I2C drivers from probe_new() back to probe() - part of the
    long process of getting rid of a parameter from probe()
  * Various whitespace and typo fixes not otherwise called out.
- core
  * industrialio-buffer,Style cleanup.
  * Add documentation to extend_name field of struct iio_chan_spec to
    direct people using it towards the label infrastructure instead.
    extend_name was a design mistake a long time back so directly people
    away from it may be useful.
- adi,ad7606
  * Add HAS_IOPORT dependency to prepare for some Kconfig changes.
- bosch,bma400
  * Drop pointless print of ret in a dev_err_probe() message.
- invensense,icm42600
  * Rework timestamp handling to reduce jitter.
- mediatek,mt7986-auxdac
  * Add DT binding for this part.
- qcom,spmi-vadc
  * Allow for 1/16th prescaling used on a few devices.
  * Various changes to channel labeling and naming, including dropping
    use of fwnode_name which generates odd channel names. Small ABI
    change as a result, but not thought to be a problem for users of this
    platform.
- st,lsm6dsx
  * dt-binding: Use common schema for mount-matrix via a reference.
- st,stm32
  * Add a debug print for when legacy channel config is used.
- ti,palmas-adc
  * Drop unused i2c.h include.

* tag 'iio-for-6.5a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (59 commits)
  dt-bindings: iio: rockchip: Fix 'oneOf' condition failed warning
  dt-bindings: iio: afe: voltage-divider: Spelling s/curcuit/circuit/
  dt-bindings: iio: adc: Add rockchip,rk3588-saradc string
  iio: adc: rockchip_saradc: Use dev_err_probe
  iio: adc: rockchip_saradc: Match alignment with open parenthesis
  iio: adc: rockchip_saradc: Use of_device_get_match_data
  iio: adc: rockchip_saradc: Make use of devm_clk_get_enabled
  iio: adc: rockchip_saradc: Add support for RK3588
  iio: adc: rockchip_saradc: Add callback functions
  iio: temperature: tmp006: Add OF device matching support
  dt-bindings: iio: temperature: Add support for tmp006
  staging: iio: Switch i2c drivers back to use .probe()
  iio: amplifiers: ad8366 Fix whitespace issue
  iio: imu: inv_icm42600: avoid frequent timestamp jitter
  MAINTAINERS: Add ROHM BU27008
  iio: light: ROHM BU27008 color sensor
  iio: kx022a: Use new iio_validate_own_trigger()
  iio: trigger: Add simple trigger_validation helper
  dt-bindings: iio: light: ROHM BU27008
  iio: mlx90614: Add MLX90615 support
  ...
2023-06-15 13:01:55 +02:00
Uwe Kleine-König
7cf15f4275 iio: Switch i2c drivers back to use .probe()
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-21 18:54:53 +01:00
Marek Vasut
09d3bec700 iio: dac: mcp4725: Fix i2c_master_send() return value handling
The i2c_master_send() returns number of sent bytes on success,
or negative on error. The suspend/resume callbacks expect zero
on success and non-zero on error. Adapt the return value of the
i2c_master_send() to the expectation of the suspend and resume
callbacks, including proper validation of the return value.

Fixes: cf35ad61ac ("iio: add mcp4725 I2C DAC driver")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230511004330.206942-1-marex@denx.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-13 19:46:59 +01:00
Lukas Bulwahn
a146eccb68 iio: dac: build ad5758 driver when AD5758 is selected
Commit 28d1a7ac2a ("iio: dac: Add AD5758 support") adds the config AD5758
and the corresponding driver ad5758.c. In the Makefile, the ad5758 driver
is however included when AD5755 is selected, not when AD5758 is selected.

Probably, this was simply a mistake that happened by copy-and-paste and
forgetting to adjust the actual line. Surprisingly, no one has ever noticed
that this driver is actually only included when AD5755 is selected and that
the config AD5758 has actually no effect on the build.

Fixes: 28d1a7ac2a ("iio: dac: Add AD5758 support")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230508040208.12033-1-lukas.bulwahn@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-13 19:18:11 +01:00
Linus Torvalds
cec24b8b6b Char/Misc drivers for 6.4-rc1
Here is the "big" set of char/misc and other driver subsystems for
 6.4-rc1.
 
 It's pretty big, but due to the removal of pcmcia drivers, almost breaks
 even for number of lines added vs. removed, a nice change.
 
 Included in here are:
   - removal of unused PCMCIA drivers (finally!)
   - Interconnect driver updates and additions
   - Lots of IIO driver updates and additions
   - MHI driver updates
   - Coresight driver updates
   - NVMEM driver updates, which required some OF updates
   - W1 driver updates and a new maintainer to manage the subsystem
   - FPGA driver updates
   - New driver subsystem, CDX, for AMD systems
   - lots of other small driver updates and additions
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc drivers updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystems for
  6.4-rc1.

  It's pretty big, but due to the removal of pcmcia drivers, almost
  breaks even for number of lines added vs. removed, a nice change.

  Included in here are:

   - removal of unused PCMCIA drivers (finally!)

   - Interconnect driver updates and additions

   - Lots of IIO driver updates and additions

   - MHI driver updates

   - Coresight driver updates

   - NVMEM driver updates, which required some OF updates

   - W1 driver updates and a new maintainer to manage the subsystem

   - FPGA driver updates

   - New driver subsystem, CDX, for AMD systems

   - lots of other small driver updates and additions

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
  mcb-lpc: Reallocate memory region to avoid memory overlapping
  mcb-pci: Reallocate memory region to avoid memory overlapping
  mcb: Return actual parsed size when reading chameleon table
  kernel/configs: Drop Android config fragments
  virt: acrn: Replace obsolete memalign() with posix_memalign()
  spmi: Add a check for remove callback when removing a SPMI driver
  spmi: fix W=1 kernel-doc warnings
  spmi: mtk-pmif: Drop of_match_ptr for ID table
  spmi: pmic-arb: Convert to platform remove callback returning void
  spmi: mtk-pmif: Convert to platform remove callback returning void
  spmi: hisi-spmi-controller: Convert to platform remove callback returning void
  w1: gpio: remove unnecessary ENOMEM messages
  w1: omap-hdq: remove unnecessary ENOMEM messages
  w1: omap-hdq: add SPDX tag
  w1: omap-hdq: allow compile testing
  w1: matrox: remove unnecessary ENOMEM messages
  w1: matrox: use inline over __inline__
  w1: matrox: switch from asm to linux header
  w1: ds2482: do not use assignment in if condition
  w1: ds2482: drop unnecessary header
  ...
2023-04-27 12:07:50 -07:00
Greg Kroah-Hartman
fba51482b6 1st set of IIO new device support, features and cleanups for the 6.4 cycle.
New device support
 * bosch,bmp280
   - Add support for BMP580 - includes significant refactoring and general
     driver cleanup + support for non-volatile memory for trimming and config
     parameters.
 * rohm BU27034
   - New driver for this 3 channel ambient light sensor.
   - New support library for devices where both integration time and
     amplifier gain are configurable.  In these cases a scale change
     may require changing bother underlying values. This library module
     provides code to help with this.
 * st,accel
   - Add support for IIS328DQ (ID only as compatible wtih LIS331DL)
 * st,lsm6dsx
   - Add support for ASM330LHB automotive MEMS sensor.
 * ti,ads1100, ads1000
   - New driver for these 16 bit ADCs.
 * ti,tmp117
   - Add support for older tmp116 device. Includes some general driver cleanup.
 
 Staging driver drops
 * adi,ade7854
   - Driver was a very long way from compliant with IIO infrastructure and ABI.
     If anyone wants a non staging version of this driver they are better off
     starting from scratch. Hence drop it and the associated meter.h header.
 
 Features
 * adi,ad7441r
   - Add DT binding to set sink current for digital input.
 * semtech,sx9324,9360
   - Support older register mapping from firmware designed for windows.
 
 Core improvements.
 * Move iio_trigger_poll() docs to next to the implementation and add a note
   on expected caller context.
 * Rename iio_trigger_poll_chained() to iio_trigger_poll_nested() so
   as to use more standard / common terminology.
 * Improve main ABI docs references to offset and scale for raw values by
   making them consistent and clear.
 
 Cleanups and minor fixes:
 * adi,ad5592r
   - Add GPIO names - useful for debug.
 * adi,ad7441r
   - Fix current input, loop powered mode configuration setup.
 * adi,adis16475
   - Fix wrong commented value for minimum advised lower rate.
 * adi,admv1013
   - Use devm_clk_get_enabled() to reduce boilerplate.
 * adi,ads1210
   - Fix wrong bits for writing config register (late fix and has
     been broken a long time so not rushed upstream)
 * amlogic,meson-saradc
   - Improve cleanup in error handling if BL30 handshake fails.
 * apex-embedded,stx104
   - Migrate to regmap and use regmap_read_poll_timeout() to neatly handle
     retries.
   - Add local mutex to close various races.
   - Use define U16_MAX rather than value for limit.
   - Improve code readability with minor reorganization.
 * atmel,ad91-sama5d2
   - Drop trivial dead code.
 * kionix,kx022a
   - Drop unused structure element.
 * linear,ltc2983
   - Reorganize bindings doc to enable unevaluatedProperties to be set
     in one place for all child nodes.
   - Make binding for adi,custom-thermocouple accept signed values.
 * maxim,max44000
   - Add OF Device matching (of_match_table was not correctly set).
 * maxim,max5522
   - Missing static
 * measurement-computing,cio-dac
   - Fix wrong part name in comments.
   - Migrate to regmap.
   - Improve includes by replacing bitops.h with more direct bits.h
 * qcom,pm8xxx-xoadc
   - Remove a check that can never fail.
 * renesas,rcar-gyroadc
   - DT binding documentation improvements.
   - Tidy up an unused warning with __maybe_unused.
 * semtech,sx_common
   - Drop docs for a structure element that doesn't exist.
 * semtech,sx9500
   - Drop ACPI_PTR() and of_match_ptr() protections that just complicate
     the code / block some firmware registration types that would otherwise
     work.
 * sensiron,sps30
   - Comment formatting tidy up.
 * st,sensors
   - Drop duplicate text in DT binding.
 * st,stm32-adc
   - Add some missing static markings.
 * ti,ads1100
   - Use correct return code in dev_err_probe() call.
 * x-powers,axp20x_adc - precursor series to simplify addition of AXP192.
   - General code cleanup / minor refactoring for better readabilty of code.
   - Switch from boolean value to mask for adc_en2 field to avoid hard coding
     a mask that will be different in AXP192
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Merge tag 'iio-for-6.4a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

1st set of IIO new device support, features and cleanups for the 6.4 cycle.

New device support
* bosch,bmp280
  - Add support for BMP580 - includes significant refactoring and general
    driver cleanup + support for non-volatile memory for trimming and config
    parameters.
* rohm BU27034
  - New driver for this 3 channel ambient light sensor.
  - New support library for devices where both integration time and
    amplifier gain are configurable.  In these cases a scale change
    may require changing bother underlying values. This library module
    provides code to help with this.
* st,accel
  - Add support for IIS328DQ (ID only as compatible wtih LIS331DL)
* st,lsm6dsx
  - Add support for ASM330LHB automotive MEMS sensor.
* ti,ads1100, ads1000
  - New driver for these 16 bit ADCs.
* ti,tmp117
  - Add support for older tmp116 device. Includes some general driver cleanup.

Staging driver drops
* adi,ade7854
  - Driver was a very long way from compliant with IIO infrastructure and ABI.
    If anyone wants a non staging version of this driver they are better off
    starting from scratch. Hence drop it and the associated meter.h header.

Features
* adi,ad7441r
  - Add DT binding to set sink current for digital input.
* semtech,sx9324,9360
  - Support older register mapping from firmware designed for windows.

Core improvements.
* Move iio_trigger_poll() docs to next to the implementation and add a note
  on expected caller context.
* Rename iio_trigger_poll_chained() to iio_trigger_poll_nested() so
  as to use more standard / common terminology.
* Improve main ABI docs references to offset and scale for raw values by
  making them consistent and clear.

Cleanups and minor fixes:
* adi,ad5592r
  - Add GPIO names - useful for debug.
* adi,ad7441r
  - Fix current input, loop powered mode configuration setup.
* adi,adis16475
  - Fix wrong commented value for minimum advised lower rate.
* adi,admv1013
  - Use devm_clk_get_enabled() to reduce boilerplate.
* adi,ads1210
  - Fix wrong bits for writing config register (late fix and has
    been broken a long time so not rushed upstream)
* amlogic,meson-saradc
  - Improve cleanup in error handling if BL30 handshake fails.
* apex-embedded,stx104
  - Migrate to regmap and use regmap_read_poll_timeout() to neatly handle
    retries.
  - Add local mutex to close various races.
  - Use define U16_MAX rather than value for limit.
  - Improve code readability with minor reorganization.
* atmel,ad91-sama5d2
  - Drop trivial dead code.
* kionix,kx022a
  - Drop unused structure element.
* linear,ltc2983
  - Reorganize bindings doc to enable unevaluatedProperties to be set
    in one place for all child nodes.
  - Make binding for adi,custom-thermocouple accept signed values.
* maxim,max44000
  - Add OF Device matching (of_match_table was not correctly set).
* maxim,max5522
  - Missing static
* measurement-computing,cio-dac
  - Fix wrong part name in comments.
  - Migrate to regmap.
  - Improve includes by replacing bitops.h with more direct bits.h
* qcom,pm8xxx-xoadc
  - Remove a check that can never fail.
* renesas,rcar-gyroadc
  - DT binding documentation improvements.
  - Tidy up an unused warning with __maybe_unused.
* semtech,sx_common
  - Drop docs for a structure element that doesn't exist.
* semtech,sx9500
  - Drop ACPI_PTR() and of_match_ptr() protections that just complicate
    the code / block some firmware registration types that would otherwise
    work.
* sensiron,sps30
  - Comment formatting tidy up.
* st,sensors
  - Drop duplicate text in DT binding.
* st,stm32-adc
  - Add some missing static markings.
* ti,ads1100
  - Use correct return code in dev_err_probe() call.
* x-powers,axp20x_adc - precursor series to simplify addition of AXP192.
  - General code cleanup / minor refactoring for better readabilty of code.
  - Switch from boolean value to mask for adc_en2 field to avoid hard coding
    a mask that will be different in AXP192

* tag 'iio-for-6.4a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (63 commits)
  MAINTAINERS: Add ROHM BU27034
  iio: light: ROHM BU27034 Ambient Light Sensor
  dt-bindings: iio: light: Support ROHM BU27034
  MAINTAINERS: Add IIO gain-time-scale helpers
  iio: light: Add gain-time-scale helpers
  doc: Make sysfs-bus-iio doc more exact
  iio: dac: set variable max5522_channels storage-class-specifier to static
  dt-bindings: iio: temperature: ltc2983: Make 'adi,custom-thermocouple' signed
  dt-bindings: iio: temperature: ltc2983: Fix child node unevaluated properties
  iio: addac: stx104: Use regmap_read_poll_timeout() for conversion poll
  iio: addac: stx104: Migrate to the regmap API
  iio: addac: stx104: Improve indentation in stx104_write_raw()
  iio: addac: stx104: Use define rather than hardcoded limit for write val
  iio: addac: stx104: Fix race condition when converting analog-to-digital
  iio: addac: stx104: Fix race condition for stx104_write_raw()
  dt-bindings: iio: st-sensors: Fix repeated text
  staging: iio: resolver: ads1210: fix config mode
  iio: adc: ti-ads1100: fix error code in probe()
  iio: accel: add support for IIS328DQ variant
  dt-bindings: iio: st-sensors: Add IIS328DQ accelerometer
  ...
2023-04-12 09:45:34 +02:00
Tom Rix
f1caa90085 iio: dac: set variable max5522_channels storage-class-specifier to static
smatch reports
drivers/iio/dac/max5522.c:55:28: warning: symbol
  'max5522_channels' was not declared. Should it be static?

This variable is only used in one file so it should be static.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230404013828.1914523-1-trix@redhat.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-04-10 12:26:34 +01:00
Liang He
ffef737915 iio: dac: ad5755: Add missing fwnode_handle_put()
In ad5755_parse_fw(), we should add fwnode_handle_put()
when break out of the iteration device_for_each_child_node()
as it will automatically increase and decrease the refcounter.

Fixes: 3ac27afefd ("iio:dac:ad5755: Switch to generic firmware properties and drop pdata")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20230322035627.1856421-1-windhl@126.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-04-01 16:41:52 +01:00
Greg Kroah-Hartman
4bffd2c7a3 1st set of IIO fixes for 6.3
Usual mixed bag:
 
 - core - output buffers
   Fix return of bytes written when only some succeed.
   Fix O_NONBLOCK handling to not block.
 
 - adi,ad7791
   Fix IRQ type.  Not confirmed to have any impact but good to correct it anyway
 
 - adi,adis16400
   Missing CONFIG_CRC32
 
 - capella,cm32181
   Unregister 2nd I2C client if one is used.
 
 - cio-dac
   Fix bitdepth for range check on write.
 
 - linear,ltc2497
   Fix a wrong shift of the LSB introduced when switching to be24 handling.
 
 - maxim,max11410
   Fix handling of return code in read_poll_timeout()
 
 - qcom,spmi-adc
   Fix an accidental change of channel name to include the reg value from OF.
 
 - ti,palmas
   Fix a null dereference on remove due to wrong function used to get the
   drvdata.
 
 - ti,ads7950
   Mark GPIO as can sleep.
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Merge tag 'iio-fixes-for-6.3a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus

Jonathan writes:

1st set of IIO fixes for 6.3

Usual mixed bag:

- core - output buffers
  Fix return of bytes written when only some succeed.
  Fix O_NONBLOCK handling to not block.

- adi,ad7791
  Fix IRQ type.  Not confirmed to have any impact but good to correct it anyway

- adi,adis16400
  Missing CONFIG_CRC32

- capella,cm32181
  Unregister 2nd I2C client if one is used.

- cio-dac
  Fix bitdepth for range check on write.

- linear,ltc2497
  Fix a wrong shift of the LSB introduced when switching to be24 handling.

- maxim,max11410
  Fix handling of return code in read_poll_timeout()

- qcom,spmi-adc
  Fix an accidental change of channel name to include the reg value from OF.

- ti,palmas
  Fix a null dereference on remove due to wrong function used to get the
  drvdata.

- ti,ads7950
  Mark GPIO as can sleep.

* tag 'iio-fixes-for-6.3a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: adc: ti-ads7950: Set `can_sleep` flag for GPIO chip
  iio: adc: palmas_gpadc: fix NULL dereference on rmmod
  iio: adc: max11410: fix read_poll_timeout() usage
  iio: dac: cio-dac: Fix max DAC write value check for 12-bit
  iio: light: cm32181: Unregister second I2C client if present
  iio: accel: kionix-kx022a: Get the timestamp from the driver's private data in the trigger_handler
  iio: adc: ad7791: fix IRQ flags
  iio: buffer: make sure O_NONBLOCK is respected
  iio: buffer: correctly return bytes written in output buffers
  iio: light: vcnl4000: Fix WARN_ON on uninitialized lock
  iio: adis16480: select CONFIG_CRC32
  drivers: iio: adc: ltc2497: fix LSB shift
  iio: adc: qcom-spmi-adc5: Fix the channel name
2023-03-28 13:30:55 +02:00
William Breathitt Gray
87a1ff66a0 iio: dac: cio-dac: Migrate to the regmap API
The regmap API supports IO port accessors so we can take advantage of
regmap abstractions rather than handling access to the device registers
directly in the driver.

Includes trivial header inclusion tidy up.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20230311140218.74920-1-william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-18 16:42:52 +00:00
William Breathitt Gray
666cac91ae iio: dac: cio-dac: Fix typo in comment listing supported devices
This driver supports the CIO-DAC08 device and not "CIO-DAC06".

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20230311002434.8761-1-william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-11 12:36:25 +00:00
William Breathitt Gray
c3701185ee iio: dac: cio-dac: Fix max DAC write value check for 12-bit
The CIO-DAC series of devices only supports DAC values up to 12-bit
rather than 16-bit. Trying to write a 16-bit value results in only the
lower 12 bits affecting the DAC output which is not what the user
expects. Instead, adjust the DAC write value check to reject values
larger than 12-bit so that they fail explicitly as invalid for the user.

Fixes: 3b8df5fd52 ("iio: Add IIO support for the Measurement Computing CIO-DAC family")
Cc: stable@vger.kernel.org
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20230311002248.8548-1-william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-11 12:35:24 +00:00
Antoniu Miclaus
390738596c drivers: iio: dac: ad5592r: add gpio_chip names
Add array of explicit gpio names for the `gpiochip` structure of
ad5592r, mainly for debug purposes.

Since the gpios are configurable via the dts, generic names are
used.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20221117090130.51702-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-11 12:18:28 +00:00
Angelo Dureghello
ba56b46d1c iio: dac: add support for max5522
Add initial support for DAC max5522.

Tested writing DAC A and B with some values,
from 0 to 1023, measured output voltages, driver works properly.

Additions for max5523/24/25 will follow.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Link: https://lore.kernel.org/r/20221106165928.223318-1-angelo.dureghello@timesys.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-01-21 17:58:59 +00:00
Fabio Estevam
58c2630020 iio: dac: ad5686: Add support for AD5337
AD5337 belongs to the same family as the AD5338.

The difference is that the AD5337 has 8-bit precision instead of 10-bit.

Add support for the AD5337 chip in the driver.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20221130182632.3856675-2-festevam@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-12-28 17:19:45 +00:00
Uwe Kleine-König
3de8dd69fa iio: dac: ti-dac5571: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20221118224540.619276-93-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
818fe45465 iio: dac: mcp4725: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-92-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
62b001dad8 iio: dac: max5821: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-91-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
090515edf4 iio: dac: max517: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-90-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
44d7a03c98 iio: dac: m62332: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-89-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
53f46605c3 iio: dac: ds4424: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-88-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
92cd05a096 iio: dac: ad5696-i2c: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-87-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
a17c748115 iio: dac: ad5593r: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-86-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:41 +00:00
Uwe Kleine-König
94e5ddbaac iio: dac: ad5446: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-85-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:40 +00:00
Uwe Kleine-König
4b2b4370a8 iio: dac: ad5380: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-84-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:40 +00:00
Uwe Kleine-König
16fb97c4aa iio: dac: ad5064: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-83-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:40 +00:00
Matti Vaittinen
08f75f180d iio: dac: ltc2688: Simplify using devm_regulator_*get_enable()
Use devm_regulator_bulk_get_enable() instead of open coded bulk-get,
bulk-enable, add-action-to-disable-at-detach - pattern.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/a29493f594c84b3bd852e462bbd3e591a8575a27.1660934107.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 19:44:00 +00:00
Linus Torvalds
a09476668e Char/Misc and other driver changes for 6.1-rc1
Here is the large set of char/misc and other small driver subsystem
 changes for 6.1-rc1.  Loads of different things in here:
   - IIO driver updates, additions, and changes.  Probably the largest
     part of the diffstat
   - habanalabs driver update with support for new hardware and features,
     the second largest part of the diff.
   - fpga subsystem driver updates and additions
   - mhi subsystem updates
   - Coresight driver updates
   - gnss subsystem updates
   - extcon driver updates
   - icc subsystem updates
   - fsi subsystem updates
   - nvmem subsystem and driver updates
   - misc driver updates
   - speakup driver additions for new features
   - lots of tiny driver updates and cleanups
 
 All of these have been in the linux-next tree for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the large set of char/misc and other small driver subsystem
  changes for 6.1-rc1. Loads of different things in here:

   - IIO driver updates, additions, and changes. Probably the largest
     part of the diffstat

   - habanalabs driver update with support for new hardware and
     features, the second largest part of the diff.

   - fpga subsystem driver updates and additions

   - mhi subsystem updates

   - Coresight driver updates

   - gnss subsystem updates

   - extcon driver updates

   - icc subsystem updates

   - fsi subsystem updates

   - nvmem subsystem and driver updates

   - misc driver updates

   - speakup driver additions for new features

   - lots of tiny driver updates and cleanups

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits)
  w1: Split memcpy() of struct cn_msg flexible array
  spmi: pmic-arb: increase SPMI transaction timeout delay
  spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes
  spmi: pmic-arb: correct duplicate APID to PPID mapping logic
  spmi: pmic-arb: add support to dispatch interrupt based on IRQ status
  spmi: pmic-arb: check apid against limits before calling irq handler
  spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq
  spmi: pmic-arb: handle spurious interrupt
  spmi: pmic-arb: add a print in cleanup_irq
  drivers: spmi: Directly use ida_alloc()/free()
  MAINTAINERS: add TI ECAP driver info
  counter: ti-ecap-capture: capture driver support for ECAP
  Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items
  dt-bindings: counter: add ti,am62-ecap-capture.yaml
  counter: Introduce the COUNTER_COMP_ARRAY component type
  counter: Consolidate Counter extension sysfs attribute creation
  counter: Introduce the Count capture component
  counter: 104-quad-8: Add Signal polarity component
  counter: Introduce the Signal polarity component
  counter: interrupt-cnt: Implement watch_validate callback
  ...
2022-10-08 08:56:37 -07:00
Nuno Sá
f13c81a335 iio: dac: ad5593r: add check for i2c functionality
Make sure that the needed i2c functionality is supported during probe.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20220913073413.140475-3-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21 18:42:53 +01:00
Michael Hennerich
558a25f903 iio: dac: ad5593r: Fix i2c read protocol requirements
For reliable operation across the full range of supported
interface rates, the AD5593R needs a STOP condition between
address write, and data read (like show in the datasheet Figure 40)
so in turn i2c_smbus_read_word_swapped cannot be used.

While at it, a simple helper was added to make the code simpler.

Fixes: 56ca9db862 ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220913073413.140475-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21 18:42:53 +01:00
Uwe Kleine-König
ed5c2f5fd1 i2c: Make remove callback return void
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00
Jonathan Cameron
bf19b23591 iio: dac: mcp4725: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Philippe Reynes <tremyfr@yahoo.fr>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-16-jic23@kernel.org
2022-07-18 18:48:18 +01:00