Commit Graph

18 Commits

Author SHA1 Message Date
Guenter Roeck
3ec621cd6f hwmon: (lm95234) Use multi-byte regmap operations
Use  multi-byte regmap operations to simplify the code
and to reduce dependency on locking.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:52 -07:00
Guenter Roeck
280220236b hwmon: (lm95234) Add support for tempX_enable attribute
LM95233/LM95234 support enabling temperature channels one by one.
Add support for tempX_enable attribute to be able to use that
functionality.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:52 -07:00
Guenter Roeck
f27ab9f05c hwmon: (lm95234) Convert to with_info hwmon API
Convert to with_info API to simplify the code and reduce its size.

This patch reduces the object file size by about 30%.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:52 -07:00
Guenter Roeck
963f9bc976 hwmon: (lm95234) Convert to use regmap
Use regmap to replace local caching and to be able to use regmap API
functions.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:52 -07:00
Guenter Roeck
e38b05f0a2 hwmon: (lm95234) Use find_closest to find matching update interval
Use find_closest() instead of manually coding it to find best update
interval.

Since find_closest() uses rounding to find the best match, the resulting
update interval will now reflect the update interval that is closest to
the requested value, not the value that is lower or equal to the requested
value.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:52 -07:00
Guenter Roeck
8abff91c61 hwmon: (lm95234) Reorder include files to be in alphabetic order
Alphabetic include file order simplifies maintenance and makes it easier
to add or remove files.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-31 10:43:51 -07:00
Guenter Roeck
af64e3e153 hwmon: (lm95234) Fix underflows seen when writing limit attributes
DIV_ROUND_CLOSEST() after kstrtol() results in an underflow if a large
negative number such as -9223372036854775808 is provided by the user.
Fix it by reordering clamp_val() and DIV_ROUND_CLOSEST() operations.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-07 07:48:25 -07:00
Andrew Davis
e2791bdfa6 hwmon: (lm95234) Remove use of i2c_match_id()
The function i2c_match_id() is used to fetch the matching ID from
the i2c_device_id table. This is often used to then retrieve the
matching driver_data. This can be done in one step with the helper
i2c_get_match_data().

This helper has a couple other benefits:
 * It doesn't need the i2c_device_id passed in so we do not need
   to have that forward declared, allowing us to remove those or
   move the i2c_device_id table down to its more natural spot
   with the other module info.
 * It also checks for device match data, which allows for OF and
   ACPI based probing. That means we do not have to manually check
   those first and can remove those checks.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240403203633.914389-19-afd@ti.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-06-08 16:07:33 -07:00
Uwe Kleine-König
1975d16786 hwmon: 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/20230505131718.1210071-1-u.kleine-koenig@pengutronix.de
[groeck: Added missing change in pmbus/acbel-fsg032.c]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-06-08 06:41:17 -07:00
Wolfram Sang
f2f394db4b hwmon: move from strlcpy with unused retval to strscpy
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 <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220818210014.6769-1-wsa+renesas@sang-engineering.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-09-19 06:17:05 -07:00
Stephen Kitt
6748703856 hwmon: use simple i2c probe function
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 as follows:

* if the information in i2c_client is sufficient, that's used instead
  (client->name);
* anything else is handled by calling i2c_match_id() with the same
  level of error-handling (if any) as before.

A few drivers aren't included in this patch because they have a
different set of maintainers. They will be covered by other patches.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20200813160222.1503401-1-steve@sk2.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-09-23 09:42:39 -07:00
Thomas Gleixner
c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
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 <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Guenter Roeck
33721d90c0 hwmon: (lm95234) Auto-convert to use SENSOR_DEVICE_ATTR_{RO, RW, WO}
Auto-conversion was done done using the coccinelle script at
https://github.com/groeck/coccinelle-patches/blob/master/hwmon/sensor-devattr-w6.cocci

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-16 15:13:24 -08:00
Julia Lawall
2f2dbea6eb hwmon: (lm95234) use permission-specific DEVICE_ATTR variants
Use 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 <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-01-02 10:19:45 -08:00
Guenter Roeck
dfcd4c53be hwmon: (lm95234) Add support for LM95233
LM95233 is similar to LM95234, but it only supports two
instead of four external temperature sensors.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-02 06:11:53 -08:00
Fengguang Wu
3ea85ba7af hwmon: (lm95234) fix coccinelle warnings
drivers/hwmon/lm95234.c:704:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-10-18 09:12:00 -07:00
Guenter Roeck
9d86bd6ba3 hwmon: (lm95234) Convert to use devm_hwmon_device_register_with_groups
Also use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-10-18 09:11:57 -07:00
Guenter Roeck
e1eb49063b hwmon: Add driver for LM95234
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00