linux-toradex.git/drivers/hwmon/lm87.c, branch v5.12

hwmon: use simple i2c probe function (take 2)

2020-09-23T16:42:40+00:00

Many hwmon drivers don't use the id information provided by the old
i2c probe function, and the remainder can easily be adapted to the new
form ("probe_new") by calling i2c_match_id explicitly.

This avoids scanning the identifier tables during probes.

Drivers which didn't use the id are converted as-is; drivers which did
are modified to call i2c_match_id() with the same level of
error-handling (if any) as before.

This patch wraps up the transition for hwmon, with four stragglers not
included in the previous large patch.

Signed-off-by: Stephen Kitt 
Link: https://lore.kernel.org/r/20200821160354.594715-1-steve@sk2.org
Signed-off-by: Guenter Roeck

hwmon: Replace HTTP links with HTTPS ones

2020-07-24T14:44:57+00:00

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov 
Link: https://lore.kernel.org/r/20200719175512.60745-1-grandmaster@al2klimov.de
Signed-off-by: Guenter Roeck

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61

2019-05-24T15:36:45+00:00

Based on 1 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 you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  675 mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Michael Ellerman  (powerpc)
Reviewed-by: Richard Fontana 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman

hwmon: (lm87) Use permission specific SENSOR[_DEVICE]_ATTR variants

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

Use SENSOR[_DEVICE]_ATTR[_2]_{RO,RW,WO} to simplify the source code,
to improve readbility, and to reduce the chance of inconsistencies.

Also replace any remaining S_ in the driver 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/.

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: (lm87) Add OF device ID table

2017-04-13T13:09:26+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: (lm87) Remove unused I2C devices driver_data

2017-04-13T13:07:34+00:00

The I2C device ID entries set a .driver_data but this data is never
looked up by the driver. So don't set it and also remove the enum.

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

hwmon: (lm87) Allow channel data to be set from dts file

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

Currently there is no method for setting the channel
value from the DTS file. When, the driver uses a dts
file to initialize the driver platform_data is not set.
As a result channel variable may not be set correctly.

Without the channel variable set correctly, some of the
sensors will not be initialized correctly. For example
temp3 sensor sysfs entries.

This implements the schema agreed with the device tree
binding document.

Signed-off-by: Mahoda Ratnayaka 
Tested-by: Chris Packham 
Signed-off-by: Chris Packham 
Signed-off-by: Guenter Roeck

hwmon: (lm87) use permission-specific DEVICE_ATTR variants

2017-01-02T18:19:45+00:00

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.

Signed-off-by: Julia Lawall 
[groeck: Updated description]
Signed-off-by: Guenter Roeck

hwmon: (lm87) Fix overflow seen when writing voltage limit attributes

2016-12-12T19:33:42+00:00

Writes into voltage limit attributes can overflow due to an unbound
multiplication.

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

hwmon: (lm87) Use hwmon to create the sysfs groups

2016-12-02T21:28:08+00:00

This is the expected thing for a hwmon driver to do, this changes
the sysfs paths from, say:

  /sys/bus/i2c/devices/0-002c/temp1_input

to:

  /sys/bus/i2c/devices/0-002c/hwmon/hwmon0/temp1_input

Signed-off-by: Jason Gunthorpe 
Signed-off-by: Guenter Roeck