kernel/drivers/iio/accel/st_accel_spi.c, branch linux-6.18.y

iio: normalize array sentinel style

2025-04-22T18:10:04Z

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

module: Convert symbol namespace to string literal

2024-12-02T19:34:44Z

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: accel: st_accel: add support for LIS2DS12

2024-06-25T20:04:49Z

Define sensor settings for LIS2DS12 by STMicroelectronics (WhoAmI 0x43) and add support in the I2C and SPI drivers. Datasheet: https://www.st.com/resource/en/datasheet/lis2ds12.pdf Signed-off-by: Kaustabh Chakraborty Reviewed-by: Linus Walleij Link: https://patch.msgid.link/20240622123520.39253-1-kauschluss@disroot.org Signed-off-by: Jonathan Cameron

iio: accel: add support for IIS328DQ variant

2023-03-19T15:41:22Z

Since the ST IIS328DQ accelerometer is compatible to the ST LIS331DL, just add the new compatible to the st_accel framework. Link: https://www.st.com/resource/en/datasheet/iis328dq.pdf Signed-off-by: Stefan Wahren Link: https://lore.kernel.org/r/20230317103323.7741-6-stefan.wahren@chargebyte.com Signed-off-by: Jonathan Cameron

iio: accel: st_accel: Add LSM303C

2023-01-08T13:01:02Z

The accelerometer part of ST LSM303C is similar (perhaps even identical) to the already supported standalone LIS2HH12 accelerometer, so just add the new st,lsm303c-accel compatible for the existing definitions. Signed-off-by: Stephan Gerhold Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20230106102239.9647-3-stephan@gerhold.net Signed-off-by: Jonathan Cameron

iio: accel: add support for LIS302DL variant

2022-04-04T08:11:23Z

Add support for STMicroelectronics LIS302DL accelerometer to the st_accel framework. Datasheet: https://www.st.com/resource/en/datasheet/lis302dl.pdf Reviewed-by: Linus Walleij Signed-off-by: Sicelo A. Mhlongo Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220307132502.73854-4-absicsz@gmail.com Signed-off-by: Jonathan Cameron

iio:st-sensors: Move exports into IIO_ST_SENSORS namespace

2022-02-18T11:36:54Z

To avoid unnecessary pollution of the global symbol namespace move the driver core and type specific core exports into their a new namespace and import that where needed. For more info see https://lwn.net/Articles/760045/ Signed-off-by: Jonathan Cameron Cc: Andy Shevchenko Cc: Linus Walleij Cc: Denis Ciocca Link: https://lore.kernel.org/r/20220116180535.2367780-14-jic23@kernel.org

iio: st_sensors: remove all driver remove functions

2021-09-14T11:00:31Z

At this point all ST driver remove functions do iio_device_unregister(). This change removes them from them and replaces all iio_device_register() with devm_iio_device_register(). This can be done in a single change relatively easy, since all these remove functions are define in st_sensors.h. Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20210823112204.243255-5-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio: st_sensors: remove st_sensors_power_disable() function

2021-09-14T11:00:31Z

This change converts the st_sensors_power_enable() function to use devm_add_action_or_reset() handlers to register regulator_disable hooks for when the drivers get unloaded. The parent device of the IIO device object is used. This is based on the assumption that all other devm_ calls in the ST sensors use this reference. This makes the st_sensors_power_disable() un-needed. Removing this also changes unload order a bit, as all ST drivers would call st_sensors_power_disable() first and iio_device_unregister() after that. Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20210823112204.243255-4-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio: st_sensors: disable regulators after device unregistration

2021-09-14T11:00:31Z

Up until commit ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") only the ST pressure driver seems to have had any regulator disable. After that commit, the regulator handling was moved into the common st_sensors logic. In all instances of this regulator handling, the regulators were disabled before unregistering the IIO device. This can cause issues where the device would be powered down and still be available to userspace, allowing it to send invalid/garbage data. This change moves the st_sensors_power_disable() after the common probe functions. These common probe functions also handle unregistering the IIO device. Fixes: 774487611c949 ("iio: pressure-core: st: Provide support for the Vdd power supply") Fixes: ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") Cc: Lee Jones Cc: Denis CIOCCA Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210823112204.243255-2-aardelean@deviqon.com Signed-off-by: Jonathan Cameron