kernel/linux.git/include/linux/iio/imu, branch v6.12.80

iio: imu: adis: remove legacy lock helpers

2024-06-25T20:04:50+00:00

Since all users were converted to the new cleanup based helper, adis_dev_lock() and adis_dev_unlock() can now be removed from the lib. Signed-off-by: Nuno Sa Link: https://patch.msgid.link/20240618-dev-iio-adis-cleanup-v1-9-bd93ce7845c7@analog.com Signed-off-by: Jonathan Cameron

iio: imu: adis: add cleanup based lock helpers

2024-06-25T20:04:49+00:00

Add two new lock helpers that make use of the cleanup guard() and scoped_guard() macros. Thus, users won't have to worry about unlocking which is less prone to errors and allows for simpler error paths. Signed-off-by: Nuno Sa Link: https://patch.msgid.link/20240618-dev-iio-adis-cleanup-v1-3-bd93ce7845c7@analog.com Signed-off-by: Jonathan Cameron

iio: imu: adis: move to the cleanup magic

2024-06-25T20:04:49+00:00

This makes locking and handling error paths simpler. Signed-off-by: Nuno Sa Link: https://patch.msgid.link/20240618-dev-iio-adis-cleanup-v1-2-bd93ce7845c7@analog.com Signed-off-by: Jonathan Cameron

iio: imu: adis_trigger: Allow level interrupts for FIFO readings

2024-06-04T18:53:09+00:00

Currently, adis library allows configuration only for edge interrupts, needed for data ready sampling. This patch removes the restriction for level interrupts for devices which have FIFO support. Furthermore, in case of devices which have FIFO support, devm_request_threaded_irq is used for interrupt allocation, to avoid flooding the processor with the FIFO watermark level interrupt, which is active until enough data has been read from the FIFO. Reviewed-by: Nuno Sa Signed-off-by: Ramona Gradinariu Link: https://lore.kernel.org/r/20240527142618.275897-7-ramona.bolboaca13@gmail.com Signed-off-by: Jonathan Cameron

iio: imu: adis_buffer: Add buffer setup API with buffer attributes

2024-06-04T18:53:09+00:00

Add new API called devm_adis_setup_buffer_and_trigger_with_attrs() which also takes buffer attributes as a parameter. Rewrite devm_adis_setup_buffer_and_trigger() implementation such that it calls devm_adis_setup_buffer_and_trigger_with_attrs() with buffer attributes parameter NULL Reviewed-by: Nuno Sa Signed-off-by: Ramona Gradinariu Link: https://lore.kernel.org/r/20240527142618.275897-4-ramona.bolboaca13@gmail.com Signed-off-by: Jonathan Cameron

iio: imu: adis: ensure proper DMA alignment

2024-01-22T18:59:07+00:00

Aligning the buffer to the L1 cache is not sufficient in some platforms as they might have larger cacheline sizes for caches after L1 and thus, we can't guarantee DMA safety. That was the whole reason to introduce IIO_DMA_MINALIGN in [1]. Do the same for the sigma_delta ADCs. [1]: https://lore.kernel.org/linux-iio/20220508175712.647246-2-jic23@kernel.org/ Fixes: ccd2b52f4ac6 ("staging:iio: Add common ADIS library") Signed-off-by: Nuno Sa Link: https://lore.kernel.org/r/20240117-adis-improv-v1-1-7f90e9fad200@analog.com Cc: Signed-off-by: Jonathan Cameron

iio: imu: adis: Remove adis_initial_startup function

2022-11-23T20:37:51+00:00

Remove adis_initial_startup function since it is not used anymore. Signed-off-by: Ramona Bolboaca Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20221122082757.449452-10-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron

iio: adis: add '__adis_enable_irq()' implementation

2022-11-23T20:37:50+00:00

Add '__adis_enable_irq()' implementation which is the unlocked version of 'adis_enable_irq()'. Call '__adis_enable_irq()' instead of 'adis_enable_irq()' from '__adis_intial_startup()' to keep the expected unlocked functionality. This fix is needed to remove a deadlock for all devices which are using 'adis_initial_startup()'. The deadlock occurs because the same mutex is acquired twice, without releasing it. The mutex is acquired once inside 'adis_initial_startup()', before calling '__adis_initial_startup()', and once inside 'adis_enable_irq()', which is called by '__adis_initial_startup()'. The deadlock is removed by calling '__adis_enable_irq()', instead of 'adis_enable_irq()' from within '__adis_initial_startup()'. Fixes: b600bd7eb3335 ("iio: adis: do not disabe IRQs in 'adis_init()'") Signed-off-by: Ramona Bolboaca Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20221122082757.449452-2-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron

iio: adis: stylistic changes

2022-01-23T18:03:37+00:00

Minor stylistic changes to address checkptach complains when called with '--strict'. Signed-off-by: Nuno Sá Link: https://lore.kernel.org/r/20220122130905.99-3-nuno.sa@analog.com Signed-off-by: Jonathan Cameron

adis: simplify 'adis_update_bits' macros

2022-01-23T18:03:37+00:00

There's no need to use '__builtin_choose_expr' to choose the right call to 'adis_update_bits_base()'. We can change the 'BUILD_BUG_ON()' condition so that it makes sure only the supported sizes are passed in. With that, we can just use 'sizeof(val)' as the size argument of 'adis_update_bits_base()'. Signed-off-by: Nuno Sá Link: https://lore.kernel.org/r/20220122130905.99-2-nuno.sa@analog.com Signed-off-by: Jonathan Cameron