linux-stable.git/drivers/hwmon/tmp421.c, branch linux-5.4.y

hwmon: (tmp421) fix rounding for negative values

2021-10-06T13:42:33+00:00

[ Upstream commit 724e8af85854c4d3401313b6dd7d79cf792d8990 ]

Old code produces -24999 for 0b1110011100000000 input in standard format due to
always rounding up rather than "away from zero".

Use the common macro for division, unify and simplify the conversion code along
the way.

Fixes: 9410700b881f ("hwmon: Add driver for Texas Instruments TMP421/422/423 sensor chips")
Signed-off-by: Paul Fertser 
Link: https://lore.kernel.org/r/20210924093011.26083-3-fercerpav@gmail.com
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

hwmon: (tmp421) report /PVLD condition as fault

2021-10-06T13:42:33+00:00

[ Upstream commit 540effa7f283d25bcc13c0940d808002fee340b8 ]

For both local and remote sensors all the supported ICs can report an
"undervoltage lockout" condition which means the conversion wasn't
properly performed due to insufficient power supply voltage and so the
measurement results can't be trusted.

Fixes: 9410700b881f ("hwmon: Add driver for Texas Instruments TMP421/422/423 sensor chips")
Signed-off-by: Paul Fertser 
Link: https://lore.kernel.org/r/20210924093011.26083-2-fercerpav@gmail.com
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157

2019-05-30T18:26:37+00:00

Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Richard Fontana 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman

hwmon: (tmp421) Fix build warning

2019-04-16T00:19:53+00:00

The following build warning is seen if CONFIG_OF is disabled.

drivers/hwmon/tmp421.c:73:34: warning:
	‘tmp421_of_match’ defined but not used

Mark tmp421_of_match as __maybe_unused to fix the problem.

Signed-off-by: Guenter Roeck

hwmon: (tmp421) Replace S_ with octal values

2019-02-18T22:23:29+00:00

Replace S_ with octal values.

The conversion was done automatically with coccinelle. The semantic patches
and the scripts used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches/hwmon/.

This patch does not introduce functional changes. It was verified by
compiling the old and new files and comparing text and data sizes.

Signed-off-by: Guenter Roeck

hwmon: (tmp421) Correct the misspelling of the tmp442 compatible attribute in OF device ID table

2019-01-17T20:54:52+00:00

Correct a typo in OF device ID table
The last one should be 'ti,tmp442'

Signed-off-by: Cheng-Min Ao 
Signed-off-by: Yu-Hsiang Chen 
Signed-off-by: Guenter Roeck

hwmon: (tmp421) make const array 'names' static

2018-10-11T03:37:13+00:00

The const array 'names' can be made static, saves populating it on
the stack and will make it read-only.

Signed-off-by: Colin Ian King 
Signed-off-by: Guenter Roeck

hwmon: (tmp421) Add OF device ID table

2017-04-02T14:01:53+00:00

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas 
Signed-off-by: Guenter Roeck

hwmon: (tmp421) Convert to use new hwmon registration API

2016-09-09T04:34:18+00:00

Simplify code and reduce code size by using the new hwmon
registration API.

Signed-off-by: Guenter Roeck

hwmon: (tmp421) Drop FSF mailing address

2014-08-04T14:01:38+00:00

The FSF mailing address can and will change over time,
so drop it.

Signed-off-by: Guenter Roeck 
Reviewed-by: Jean Delvare