kernel/linux.git/drivers/hwmon/ads7828.c, branch v6.1.174

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

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

docs: hwmon: Add an index file and rename docs to *.rst

2019-04-17T17:37:23+00:00

Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Guenter Roeck

hwmon: (ads7828) Fix build warning

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

If CONFIG_OF is not enabled, the following build warning is observed. drivers/hwmon/ads7828.c:203:34: warning: ‘ads7828_of_match’ defined but not used Mark ads7828_of_match as __maybe_unused to fix the problem. Signed-off-by: Guenter Roeck

hwmon: (ads7828) Use permission specific SENSOR[_DEVICE]_ATTR variants

2018-12-16T23:13:35+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/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: (ads7828) Accept optional parameters from device tree

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

Adding the ability for the ads7828 and ads7830 to use device tree to get optional parameters instead of using platform devices. This allows people using custom boards to also use the ads7828 in a non-default manner. Signed-off-by: Sam Povilus [groeck: Fixed whitespace errors in ads7828.txt] Signed-off-by: Guenter Roeck

hwmon: (ads7828) 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: (ads7828) Enable internal reference

2016-04-19T13:30:28+00:00

On ads7828 the internal reference defaults to off upon power up. When using internal reference, it needs to be turned on and the voltage needs to settle before normal conversion cycle can be started. Hence perform a dummy read in the probe to enable the internal reference allowing the voltage to settle before performing a normal read. Without this fix, the first read from the ADC when using internal reference always returns incorrect data. Signed-off-by: Akshay Bhat Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Guenter Roeck

hwmon: (ads7828) Check return value of devm_regmap_init_i2c

2015-02-23T04:10:30+00:00

devm_regmap_init_i2c() can fail, thus add return value checking. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck

hwmon: (ads2828) Only keep data in device data structure if needed

2015-02-02T16:20:06+00:00

The variables diff_input, ext_vref, and vref_mv are only used in the probe function and therefore don't need to be kept in the device data structure. Reviewed-and-Tested-by: Robert Rosengren Signed-off-by: Guenter Roeck