linux-stable.git/drivers/iio/light, branch linux-6.8.y

iio: hid-sensor-als: Return 0 for HID_USAGE_SENSOR_TIME_TIMESTAMP

2024-02-04T14:02:16+00:00

When als_capture_sample() is called with usage ID
HID_USAGE_SENSOR_TIME_TIMESTAMP, return 0. The HID sensor core ignores
the return value for capture_sample() callback, so return value doesn't
make difference. But correct the return value to return success instead
of -EINVAL.

Signed-off-by: Srinivas Pandruvada 
Link: https://lore.kernel.org/r/20240204125617.2635574-1-srinivas.pandruvada@linux.intel.com
Cc: 
Signed-off-by: Jonathan Cameron

Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2024-01-18T00:47:17+00:00

Pull char/misc and other driver updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem changes
  for 6.8-rc1.

  Other than lots of binder driver changes (as you can see by the merge
  conflicts) included in here are:

   - lots of iio driver updates and additions

   - spmi driver updates

   - eeprom driver updates

   - firmware driver updates

   - ocxl driver updates

   - mhi driver updates

   - w1 driver updates

   - nvmem driver updates

   - coresight driver updates

   - platform driver remove callback api changes

   - tags.sh script updates

   - bus_type constant marking cleanups

   - lots of other small driver updates

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

* tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits)
  android: removed duplicate linux/errno
  uio: Fix use-after-free in uio_open
  drivers: soc: xilinx: add check for platform
  firmware: xilinx: Export function to use in other module
  scripts/tags.sh: remove find_sources
  scripts/tags.sh: use -n to test archinclude
  scripts/tags.sh: add local annotation
  scripts/tags.sh: use more portable -path instead of -wholename
  scripts/tags.sh: Update comment (addition of gtags)
  firmware: zynqmp: Convert to platform remove callback returning void
  firmware: turris-mox-rwtm: Convert to platform remove callback returning void
  firmware: stratix10-svc: Convert to platform remove callback returning void
  firmware: stratix10-rsu: Convert to platform remove callback returning void
  firmware: raspberrypi: Convert to platform remove callback returning void
  firmware: qemu_fw_cfg: Convert to platform remove callback returning void
  firmware: mtk-adsp-ipc: Convert to platform remove callback returning void
  firmware: imx-dsp: Convert to platform remove callback returning void
  firmware: coreboot_table: Convert to platform remove callback returning void
  firmware: arm_scpi: Convert to platform remove callback returning void
  firmware: arm_scmi: Convert to platform remove callback returning void
  ...

Revert "iio: hid-sensor-als: Add light color temperature support"

2023-12-19T07:08:20+00:00

This reverts commit 5f05285df691b1e82108eead7165feae238c95ef.

This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE.
When the above usage id is absent,  driver probe fails. This breaks
ALS sensor functionality on many platforms.

Till we have a good solution, revert this commit.

Reported-by: Thomas Weißschuh 
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada 
Cc:  
Acked-by: Jonathan Cameron 
Link: https://lore.kernel.org/r/20231217200703.719876-3-srinivas.pandruvada@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

Revert "iio: hid-sensor-als: Add light chromaticity support"

2023-12-19T07:08:20+00:00

This reverts commit ee3710f39f9d0ae5137a866138d005fe1ad18132.

This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X and
HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y. When the above usage ids are
absent,  driver probe fails. This breaks ALS sensor functionality on
many platforms.

Till we have a good solution, revert this commit.

Reported-by: Thomas Weißschuh 
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada 
Cc:  
Acked-by: Jonathan Cameron 
Link: https://lore.kernel.org/r/20231217200703.719876-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

iio: light: driver for Lite-On ltr390

2023-12-11T19:16:35+00:00

Implements driver for the Ambient/UV Light sensor LTR390.
The driver exposes two ways of getting sensor readings:
  1. Raw UV Counts directly from the sensor
  2. The computed UV Index value with a percision of 2 decimal places

[NOTE] Ambient light sensing has not been implemented yet.

Driver tested on RPi Zero 2W

Datasheet: https://optoelectronics.liteon.com/upload/download/DS86-2015-0004/LTR-390UV_Final_%20DS_V1%201.pdf
Signed-off-by: Anshul Dalal 
Link: https://lore.kernel.org/r/20231208102211.413019-2-anshulusr@gmail.com
Signed-off-by: Jonathan Cameron

iio: light: isl76682: remove unreachable code

2023-12-11T19:16:35+00:00

The function isl76682_read_raw cannot execute return -EINVAL up to 145
lines, delete the invalid code.

drivers/iio/light/isl76682.c:145 isl76682_read_raw() warn: ignoring unreachable code.

Reported-by: Abaci Robot 
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7698
Signed-off-by: Jiapeng Chong 
Link: https://lore.kernel.org/r/20231208021715.32450-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jonathan Cameron

iio: light: pa1203001: Drop ACPI_PTR() protection.

2023-12-06T17:19:53+00:00

The extra cost of always including the acpi_device_id table is trivial
vs the complexity of adding guards or __maybe_unused markings so
just stop using the ACPI_PTR() macro.

Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202311160851.FDA4CDVE-lkp@intel.com/
Link: https://lore.kernel.org/r/20231116192711.366441-1-jic23@kernel.org
Signed-off-by: Jonathan Cameron

iio: light: isl76682: Add ISL76682 driver

2023-12-06T17:19:52+00:00

The ISL76682 is very basic ALS which only supports ALS or IR mode
in four ranges, 1k/4k/16k/64k LUX. There is no IRQ support or any
other fancy functionality.

Reviewed-by: Andy Shevchenko 
Reviewed-by: Matti Vaittinen 
Signed-off-by: Marek Vasut 
Link: https://lore.kernel.org/r/20231127212726.77707-2-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: light: add VEML6075 UVA and UVB light sensor driver

2023-12-04T13:57:25+00:00

The Vishay VEMl6075 is a low power, 16-bit resolution UVA and UVB
light sensor with I2C interface and noise compensation (visible and
infrarred).

Every UV channel generates an output signal measured in counts per
integration period, where the integration time is configurable.

This driver adds support for both UV channels and the ultraviolet
index (UVI) inferred from them according to the device application note
with open-air (no teflon) coefficients.

Signed-off-by: Javier Carrasco 
Link: https://lore.kernel.org/r/20231110-veml6075-v3-3-6ee46775b422@gmail.com
Signed-off-by: Jonathan Cameron

iio: light: ltrf216a: Return floating point values

2023-11-26T18:01:40+00:00

For better precision of input light intesity, return floating point
values through sysfs instead of an integer value

Signed-off-by: Shreeya Patel 
Link: https://lore.kernel.org/r/20231107192005.285534-1-shreeya.patel@collabora.com
Signed-off-by: Jonathan Cameron