linux-toradex.git/drivers/hwmon/ftsteutates.c, branch v6.13-rc7

hwmon: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-01T14:47:49+00:00

These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20240430085654.1028864-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck

hwmon: Switch i2c drivers back to use .probe()

2023-06-08T13:41:17+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("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 
Link: https://lore.kernel.org/r/20230505131718.1210071-1-u.kleine-koenig@pengutronix.de
[groeck: Added missing change in pmbus/acbel-fsg032.c]
Signed-off-by: Guenter Roeck

hwmon: ftsteutates: constify pointers to hwmon_channel_info

2023-04-19T14:08:35+00:00

Statically allocated array of pointed to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Guenter Roeck

hwmon: (ftsteutates) Add support for fanX_fault attributes

2023-02-03T15:30:10+00:00

The driver knows internally when a fan is not connected,
but does not export this knowledge to userspace. Use the
standard fanX_fault attributes to notify userspace if a
fan is not connected.

Tested on a Fujitsu DS3401-B1.

Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20230105225107.58308-4-W_Armin@gmx.de
Signed-off-by: Guenter Roeck

hwmon: (ftsteutates) Replace fanX_source with pwmX_auto_channels_temp

2023-02-03T15:30:10+00:00

Replace the nonstandard fanX_source attributes with the standardized
pwmX_auto_channels_temp attributes and document the special behaviour
associated with those attributes.

Tested on a Fujitsu DS3401-B1.

Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20230105225107.58308-3-W_Armin@gmx.de
Signed-off-by: Guenter Roeck

hwmon: (ftsteutates) Convert to devm_hwmon_device_register_with_info()

2023-02-03T15:30:10+00:00

Convert driver to use devm_hwmon_device_register_with_info()
to reduce module size by ~30%.

Tested on a Fujitsu DS3401-B1.

Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20230105225107.58308-2-W_Armin@gmx.de
Signed-off-by: Guenter Roeck

hwmon: (ftsteutates) Use devm_watchdog_register_device()

2023-02-03T15:30:09+00:00

Use devm_watchdog_register_device() to let devres take care
of unregistering the watchdog at device removal. Remove the
now pointless fts_remove() function.

Tested on a Fujitsu DS3401-B1.

Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20221224041855.83981-4-W_Armin@gmx.de
Signed-off-by: Guenter Roeck

hwmon: (ftsteutates) Fix scaling of measurements

2023-01-03T21:26:45+00:00

A user complained that the ftsteutates driver was displaying
bogus values since its introduction. This happens because the
sensor measurements need to be scaled in order to produce
meaningful results:
- the fan speed needs to be multiplied by 60 since its in RPS
- the temperature is in degrees celsius and needs an offset of 64
- the voltage is in 1/256 of 3.3V

The offical datasheet says the voltage needs to be divided by 256,
but this is likely an off-by-one-error, since even the BIOS
devides by 255 (otherwise 3.3V could not be measured).

The voltage channels additionally need a board-specific multiplier,
however this can be done by the driver since its board-specific.

The reason the missing scaling of measurements is the way Fujitsu
used this driver when it was still out-of-tree. Back then, all
scaling was done in userspace by libsensors, even the generic one.

Tested on a Fujitsu DS3401-B1.

Fixes: 08426eda58e0 ("hwmon: Add driver for FTS BMC chip "Teutates"")
Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20221224041855.83981-2-W_Armin@gmx.de
Signed-off-by: Guenter Roeck

Merge tag 'hwmon-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2022-10-05T02:02:54+00:00

Pull hwmon updates from Guenter Roeck:
 "New drivers:

   - Driver for MAX31760 fan speed controller

   - Driver for TEXAS TPS546D24 Buck Converter

   - Driver for EMC2301/2/3/5 RPM-based PWM Fan Speed Controller

  Removed drivers:

   - Drop obsolete asus_wmi_ec_sensors driver

  Cleanups, affecting various drivers:

   - Use DEFINE_SIMPLE_DEV_PM_OPS where appropriate

   - Remove forward declarations

   - Move from strlcpy with unused retval to strscpy

   - Make use of devm_clk_get_enabled()

   - Drop devm_of_pwm_get()

  Other notable cleanup and improvements:

   - Support for additional USB devide ID and support for reporting of
     rail mode via debugfs added to corsair-psu driver

   - Support for aditional USB ID in nzxt-smart2 driver

   - Support for Aquacomputer High Flow Next in aquacomputer_d5next
     driver

   - Major cleanup of pwm-fan driver

   - Major cleanup of mr75203 driver, and added support for new device
     revision

  And various other minor fixes and cleanups"

* tag 'hwmon-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits)
  hwmon: (corsair-psu) add USB id of new revision of the HX1000i psu
  hwmon: (pmbus/mp2888) Fix sensors readouts for MPS Multi-phase mp2888 controller
  dt-bindings: hwmon: sensirion,shtc1: Clean up spelling mistakes and grammar
  hwmon: (nct6683) remove unused variable in nct6683_create_attr_group
  hwmon: w83627hf: Reorder symbols to get rid of a few forward declarations
  hwmon: (ina3221) Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr()
  hwmon: (w83627ehf) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (tmp108) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (tmp103) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (tmp102) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (pwm-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (nct6775) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (max6639) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (max31730) witch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (max31722) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (ltc2947) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (lm90) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (it87) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (gpio-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  hwmon: (adt7x10) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  ...

hwmon: move from strlcpy with unused retval to strscpy

2022-09-19T13:17:05+00:00

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang 
Link: https://lore.kernel.org/r/20220818210014.6769-1-wsa+renesas@sang-engineering.com
Signed-off-by: Guenter Roeck