kernel/linux.git/drivers/iio/test, branch v6.18.21

iio: test: drop dangling symbol in gain-time-scale helpers

2026-02-26T22:59:33+00:00

[ Upstream commit d63d868b312478523670b76007dcc5eaedc3ee07 ] The code for this never went upstream. It was replaced by other code, so this should be dropped. Link: https://bugzilla.kernel.org/show_bug.cgi?id=216748 Fixes: cf996f039679 ("iio: test: test gain-time-scale helpers") Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: test: Add KUnit tests for iio_multiply_value()

2025-09-10T18:47:05+00:00

Add KUnit tests for iio_multiply_value(). Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Link: https://patch.msgid.link/20250831104825.15097-6-hansg@kernel.org Signed-off-by: Jonathan Cameron

iio: normalize array sentinel style

2025-04-22T18:10:04+00:00

Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace the array sentinel in all IIO drivers to the same style. For some time, we've been trying to consistently use `{ }` (no trailing comma, no comment, one space between braces) for array sentinels in the IIO subsystem. Still nearly 50% of existing code uses a different style. To save reviewers from having to request this trivial change as frequently, let's normalize the style in all existing IIO drivers. At least when code is copy/pasted to new drivers, the style will be consistent. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com Signed-off-by: Jonathan Cameron

iio: test: Fix GTS test config

2024-12-07T17:23:41+00:00

The test config contained a copy-paste error. The IIO GTS helper test was errorneously titled as "Test IIO formatting functions" in the menuconfig. Change the title of the tests to reflect what is tested. Fixes: cf996f039679 ("iio: test: test gain-time-scale helpers") Signed-off-by: Matti Vaittinen Link: https://patch.msgid.link/Z0gt5R86WdeK73u2@mva-rohm Signed-off-by: Jonathan Cameron

iio: test : check null return of kunit_kmalloc in iio_rescale_test_scale

2024-12-07T17:13:25+00:00

kunit_kmalloc may fail, return value might be NULL and will cause NULL pointer dereference.Add KUNIT_ASSERT_NOT_ERR_OR_NULL fix it. Signed-off-by: Pei Xiao Fixes: 8e74a48d17d5 ("iio: test: add basic tests for the iio-rescale driver") Link: https://patch.msgid.link/ecd56a85e54a96c2f0313c114075a21a76071ea2.1730259869.git.xiaopei01@kylinos.cn Signed-off-by: Jonathan Cameron

module: Convert symbol namespace to string literal

2024-12-02T19:34:44+00:00

Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS$([^)]*)$/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)$([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)$/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)$([^,]+), ([^)]+)$/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada Signed-off-by: Peter Zijlstra (Intel) Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH Signed-off-by: Linus Torvalds

iio: test: gts: test available times and gains sorting

2024-05-27T08:48:56+00:00

The iio_gts helpers build available times and scales tables based on the times and gains arrays given from the driver. The driver should be able to list all valid register values so that conversion from register valu to correct gain/time works for all supported register values. It might be more convenient for drivers to list these times and gains in the order where they're listed in the data-sheet than ascending order. However, for user who requests the supported scales / times it is more convenient to get the results in asscending order. Also, listing duplicated values is not meaning for the user. Hence the GTS heler should do sorting and deduplication of the scales and times when it builds the tables listing the available times/scales. Note, currently duplicated gain values aren't handled by GTS-helpers. Unsort the gain and time arrays in the test code, and add duplicates to time array in order to test the sorting and deduplicating works. Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/365cc6de3c17a457db738f5fdf8dd3bd6f50d5f2.1714480171.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron

iio: test: test gain-time-scale helpers

2024-02-17T16:16:09+00:00

Some light sensors can adjust both the HW-gain and integration time. There are cases where adjusting the integration time has similar impact to the scale of the reported values as gain setting has. IIO users do typically expect to handle scale by a single writable 'scale' entry. Driver should then adjust the gain/time accordingly. It however is difficult for a driver to know whether it should change gain or integration time to meet the requested scale. Usually it is preferred to have longer integration time which usually improves accuracy, but there may be use-cases where long measurement times can be an issue. Thus it can be preferable to allow also changing the integration time - but mitigate the scale impact by also changing the gain underneath. Eg, if integration time change doubles the measured values, the driver can reduce the HW-gain to half. The theory of the computations of gain-time-scale is simple. However, some people (undersigned) got that implemented wrong for more than once. Hence some gain-time-scale helpers were introduced. Add some simple tests to verify the most hairy functions. Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/0f7505b43f91394dc3bb636369489c897b7e01a7.1705328293.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron

iio: test: Mark file local structure arrays static.

2022-08-15T21:30:01+00:00

Warning cleanup: drivers/iio/test/iio-test-rescale.c:32:30: warning: symbol 'scale_cases' was not declared. Should it be static? drivers/iio/test/iio-test-rescale.c:480:30: warning: symbol 'offset_cases' was not declared. Should it be static? Signed-off-by: Jonathan Cameron Cc: Liam Beguin Reviewed-by: Liam Beguin Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220807145457.646062-2-jic23@kernel.org

iio: test: rework Kconfig to support modules

2022-07-16T18:03:41+00:00

Rework the IIO test Kconfig to support building KUnit tests as modules. This lets users execute tests at runtime in addition to the usual tools/testing/kunit/kunit.py script. Signed-off-by: Liam Beguin Link: https://lore.kernel.org/r/20220710013109.3349104-6-liambeguin@gmail.com Signed-off-by: Jonathan Cameron