kernel/drivers/iio/light/max44000.c, branch linux-6.9.y

iio: light: max44000: drop ACPI_PTR() and CONFIG_ACPI guards

2024-01-23T22:06:56Z

The complexity of config guards needed for ACPI_PTR() is not worthwhile for the small amount of saved data. This example was doing it correctly but I am proposing dropping this so as to reduce chance of cut and paste where it is done wrong. Also drop now unneeded linux/acpi.h include and added linux/mod_devicetable.h for struct acpi_device_id definition. Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20231231183514.566609-24-jic23@kernel.org Signed-off-by: Jonathan Cameron

iio: Switch i2c drivers back to use .probe()

2023-05-21T17:54:53Z

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("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 Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: light: max44000: Convert to i2c's .probe_new()

2022-11-23T20:20:28Z

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 Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20221118224540.619276-132-uwe@kleine-koenig.org Signed-off-by: Jonathan Cameron

iio: light: max44000: use device-managed functions in probe

2021-10-17T10:05:54Z

This is a simple conversion. Both iio_device_register() and iio_triggered_buffer_setup() functions have device-managed variants. Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210913120002.306280-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio:light:max44000 Fix timestamp alignment and prevent data leak.

2020-08-22T10:38:57Z

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 a 16 byte 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(). This data is allocated with kzalloc so no data can leak appart from previous readings. It is necessary to force the alignment of ts to avoid the padding on x86_32 being different from 64 bit platorms (it alows for 4 bytes aligned 8 byte types. Fixes: 06ad7ea10e2b ("max44000: Initial triggered buffer support") Reported-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron Reviewed-by: Andy Shevchenko Cc:

iio: remove explicit IIO device parent assignment

2020-06-14T10:49:59Z

This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330

2019-06-05T15:37:06Z

Based on 1 normalized pattern(s): this file is subject to the terms and conditions of version 2 of the gnu general public license see the file copying in the main directory of this archive for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 55 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.108941081@linutronix.de Signed-off-by: Greg Kroah-Hartman

Merge tag 'staging-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

2018-10-29T17:38:10Z

Pull staging/IIO driver updates from Greg KH: "Here is the big staging and IIO driver pull request for 4.20-rc1. There are lots of things here, we ended up adding more lines than removing, thanks to a large influx of Comedi National Instrument device support. Someday soon we need to get comedi out of staging... Other than the comedi drivers, the "big" things here are: - new iio drivers - delete dgnc driver (no one used it and no one had the hardware anymore) - vbox driver updates and fixes - erofs fixes - tons and tons of tiny checkpatch fixes for almost all staging drivers All of these have been in linux-next, with the last few happening a bit "late" due to them getting stuck on my laptop during travel to the Mantainers summit" * tag 'staging-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (690 commits) staging: gasket: Fix sparse "incorrect type in assignment" warnings. staging: gasket: remove debug logs for callback invocation staging: gasket: remove debug logs in page table mapping calls staging: rtl8188eu: core: Use sizeof(*p) instead of sizeof(struct P) for memory allocation staging: ks7010: Remove extra blank line staging: gasket: Remove extra blank line staging: media: davinci_vpfe: Fix spelling mistake in enum staging: speakup: Add a pair of braces staging: wlan-ng: Replace long int with long staging: MAINTAINERS: remove obsolete IPX staging directory staging: MAINTAINERS: remove NCP filesystem entry staging: rtl8188eu: cleanup comparsions to false staging: gasket: Update device virtual address comment staging: gasket: sysfs: fix attribute release comment staging: gasket: apex: fix sysfs_show staging: gasket: page_table: simplify gasket_components_to_dev_address staging: gasket: page_table: fix comment in components_to_dev_address staging: gasket: page table: fixup error path allocating coherent mem staging: gasket: page_table: rearrange gasket_page_table_entry staging: gasket: page_table: remove unnecessary PTE status set to free ...

regmap: split up regmap_config.use_single_rw

2018-09-07T12:03:55Z

Split regmap_config.use_single_rw into use_single_read and use_single_write. This change enables drivers of devices which only support bulk operations in one direction to use the regmap_bulk_*() functions for both directions and have their bulk operation split into single operations only when necessary. Update all struct regmap_config instances where use_single_rw==true to instead set both use_single_read and use_single_write. No attempt was made to evaluate whether it is possible to set only one of use_single_read or use_single_write. Signed-off-by: David Frey Signed-off-by: Mark Brown

iio: max44000: remove unused variable max44000_alstim_shift

2018-08-19T17:28:26Z

Variable max44000_alstim_shift is defined but is never used hence it is redundant and can be removed. This variable has been like this since the driver was added back in 2016. Cleans up clang warning: warning: 'max44000_alstim_shift' defined but not used [-Wunused-const-variable=] Signed-off-by: Colin Ian King Signed-off-by: Jonathan Cameron