linux-dev/drivers/iio/humidity/hts221_buffer.c, branch linus/master

iio: fix devm_iio_trigger_alloc with parent.cocci

2021-03-25T19:13:50Z

Use cocci semantic patch: @@ expression trigger, P; @@ trigger = devm_iio_trigger_alloc(P, ...); ... - trigger->dev.parent = P; To remove trigger->dev.parent, since it is set by default. Signed-off-by: Gwendal Grignou Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210309193620.2176163-3-gwendal@chromium.org Signed-off-by: Jonathan Cameron

Merge 5.8-rc6 into staging-next

2020-07-20T07:37:31Z

We need the staging fixes in here, and it resolves a merge issue with an iio driver. Signed-off-by: Greg Kroah-Hartman

iio:humidity:hts221 Fix alignment and data leak issues

2020-07-05T13:22:48Z

One of a class of bugs pointed out by Lars in a recent review. iio_push_to_buffers_with_timestamp assumes the buffer used is aligned to the size of the timestamp (8 bytes). This is not guaranteed in this driver which uses an array of smaller elements on the stack. As Lars also noted this anti pattern can involve a leak of data to userspace and that indeed can happen here. We close both issues by moving to a suitable structure in the iio_priv() data. This data is allocated with kzalloc so no data can leak apart from previous readings. Explicit alignment of ts needed to ensure consistent padding on all architectures (particularly x86_32 with it's 4 byte alignment of s64) Fixes: e4a70e3e7d84 ("iio: humidity: add support to hts221 rh/temp combo device") Reported-by: Lars-Peter Clausen Acked-by: Lorenzo Bianconi Signed-off-by: Jonathan Cameron Cc:

iio: Move attach/detach of the poll func to the core

2020-06-20T16:34:44Z

All devices using a triggered buffer need to attach and detach the trigger to the device in order to properly work. Instead of doing this in each and every driver by hand move this into the core. At this point in time, all drivers should have been resolved to attach/detach the poll-function in the same order. This patch removes all explicit calls of iio_triggered_buffer_postenable() & iio_triggered_buffer_predisable() in all drivers, since the core handles now the pollfunc attach/detach. The more peculiar change is for the 'at91-sama5d2_adc' driver, since it's not immediately obvious that removing the hooks doesn't break anything. Eugen was able to test on at91-sama5d2-adc driver, sama5d2-xplained board. All seems to be fine. Signed-off-by: Lars-Peter Clausen Signed-off-by: Alexandru Ardelean Tested-by: Eugen Hristev #for at91-sama5d2-adc Signed-off-by: Jonathan Cameron

iio: humidity: hts221: remove usage of iio_priv_to_dev()

2020-06-14T10:49:13Z

We may want to get rid of the iio_priv_to_dev() helper. That's a bit uncertain at this point. The reason is that we will hide some of the members of the iio_dev structure (to prevent drivers from accessing them directly), and that will also mean hiding the implementation of the iio_priv_to_dev() helper inside the IIO core. Hiding the implementation of iio_priv_to_dev() implies that some fast-paths may not be fast anymore, so a general idea is to try to get rid of the iio_priv_to_dev() altogether. For this driver, removing the iio_priv_to_dev() helper means passing the iio_dev object on hts221_allocate_buffers() & hts221_allocate_trigger(). Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

iio: humidity: hts221: Make use of device properties

2020-03-21T10:27:05Z

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 Signed-off-by: Jonathan Cameron

iio: humidity: hts221: Use dev_get_platdata() to get platform_data

2020-03-21T10:26:54Z

Use dev_get_platdata() to get the platform_data instead of referencing it directly. Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177

2019-05-30T18:29:19Z

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 Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de Signed-off-by: Greg Kroah-Hartman

iio: humidity: hts221: add regmap API support

2018-01-30T18:33:18Z

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 Signed-off-by: Jonathan Cameron

iio: humidity: hts221: remove trailing whitespace from a comment

2018-01-30T18:33:16Z

Signed-off-by: Lorenzo Bianconi Signed-off-by: Jonathan Cameron