Commit graph

13 commits

Author SHA1 Message Date
Jonathan Cameron
3049e64036 iio: humidity: hts221: Drop ACPI_PTR() usage
Avoiding unused variable warnings when using this macro adds
complexity that in simple cases like this one is not justified
for the small saving in data.

Switch include to mod_devicetable.h as that contains the only
ACPI specific definitions needed in this driver.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20231231183514.566609-11-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-01-23 22:06:55 +00:00
Uwe Kleine-König
7cf15f4275 iio: 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/20230515205048.19561-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-21 18:54:53 +01:00
Uwe Kleine-König
7b64a83ce6 iio: humidity: hts221_i2c: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-104-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23 20:01:42 +00:00
Jonathan Cameron
1300ab3927 iio: humidity: hts221: Move symbol exports into IIO_HTS221 namespace
Avoid unnecessary pollution of the global symbol namespace by
moving library functions in to a specific namespace and import
that into the drivers that make use of the functions.

For more info: https://lwn.net/Articles/760045/

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220220181522.541718-7-jic23@kernel.org
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220604161223.461847-4-jic23@kernel.org
2022-06-15 22:07:09 +01:00
Jonathan Cameron
2129f25de5 iio: humidity: hts221: Use EXPORT_SIMPLE_DEV_PM_OPS() to allow compiler to remove dead code.
If CONFIG_PM_SLEEP is not defined using EXPORT_SIMPLE_DEV_PM_OPS()
in conjunction with pm_sleep_ptr() allows the compiler to remove
the unused code and data. This removes the need for __maybe_unused
markings etc.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220220181522.541718-6-jic23@kernel.org
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220604161223.461847-3-jic23@kernel.org
2022-06-15 22:07:09 +01:00
Andy Shevchenko
144eb562be iio: humidity: hts221: Drop unneeded casting when print error code
Explicit casting in printf() usually shows that something is not okay.
Here, we really don't need it by providing correct specifier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-21 10:27:15 +00:00
Andy Shevchenko
92c3e93b7d iio: humidity: hts221: Make use of device properties
Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-21 10:27:05 +00:00
Thomas Gleixner
fda8d26e61 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177
Based on 1 normalized pattern(s):

  licensed under the gpl 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 135 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: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:19 -07:00
Lorenzo Bianconi
621779220b iio: humidity: hts221: add regmap API support
Introduce regmap API support to access to i2c/spi bus instead of
using a custom support.
Remove lock mutex since concurrency is already managed by regmap API

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-01-30 18:33:18 +00:00
Lorenzo Bianconi
e1ca114100 iio: humidity: hts221: move common code in hts221_core
Move duplicated i2c/spi probe code in hts221_probe()

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08 16:03:43 +01:00
Lorenzo Bianconi
b7079eeac5 iio: humidity: hts221: add power management support
Add system sleep power management support to hts221 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-14 16:52:33 +01:00
Shrirang Bagul
25fc503e2d iio: humidity: Support acpi probe for hts211
Support driver probe by reading unique HID on systems based on ACPI instead
of DT compatible strings.

Signed-off-by: Shrirang Bagul <shrirang.bagul@canonical.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-12-03 08:56:28 +00:00
Lorenzo Bianconi
e4a70e3e7d iio: humidity: add support to hts221 rh/temp combo device
Add support to STM HTS221 humidity + temperature sensor

http://www.st.com/resource/en/datasheet/hts221.pdf

- continuous mode support
- i2c support
- spi support
- trigger mode support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-23 19:34:09 +01:00