linux-dev/drivers/staging/iio/resolver, branch master

staging: iio: resolver: ad2s1210: Fix alignment for DMA safety

2022-08-15T21:30:02Z

____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_DMA_MINALIGN definition. As the tx[] an rx[] buffers are only used in the same SPI exchanges, we should be safe with them on the same cacheline. Hence only mark the first one __aligned(IIO_DMA_MINALIGN). Signed-off-by: Jonathan Cameron Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220807151218.656881-5-jic23@kernel.org

staging: iio: ad2s1210: remove redundant assignment to variable negative

2022-04-20T16:45:35Z

Variable negative is being assigned a value that is never read, it is being re-assigned later. The assignment is redundant and can be removed. Cleans up clang scan build warning: drivers/staging/iio/resolver/ad2s1210.c:502:3: warning: Value stored to 'negative' is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20220418134603.81336-1-colin.i.king@gmail.com Signed-off-by: Greg Kroah-Hartman

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

staging: iio: ad2s1210: Fix SPI reading

2020-05-03T11:35:03Z

If the serial interface is used, the 8-bit address should be latched using the rising edge of the WR/FSYNC signal. This basically means that a CS change is required between the first byte sent, and the second one. This change splits the single-transfer transfer of 2 bytes into 2 transfers with a single byte, and CS change in-between. Note fixes tag is not accurate, but reflects a point beyond which there are too many refactors to make backporting straight forward. Fixes: b19e9ad5e2cb ("staging:iio:resolver:ad2s1210 general driver cleanup.") Signed-off-by: Dragos Bogdan Signed-off-by: Alexandru Ardelean Cc: Signed-off-by: Jonathan Cameron

staging: iio: ad2s1210: Use device-managed API

2019-07-27T21:52:06Z

Use device-managed API to simplify the code. The remove function is redundant now and can be deleted. Signed-off-by: Chuhong Yuan Reviewed-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

staging: iio: ad2s1210: Remove platform data NULL check in probe

2019-06-17T20:06:43Z

The driver only needs to access GPIOs via GPIOLIB. And SPI can be configured via device-tree or ACPI. The platform data is a remnant from another time, and should not cause the driver to error out during probing if it is NULL. Also, it's not used. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

staging: iio: add proper SPDX identifiers to remaining driver files

2019-04-03T09:10:17Z

There are a number of IIO staging drivers that do not have a proper SPDX identifier on it. So fix that up and at the same time, remove the "free form" license text, as that's pretty much impossible for any tool to parse. Cc: Lars-Peter Clausen Cc: Michael Hennerich Cc: Jonathan Cameron Cc: Hartmut Knaack Cc: Peter Meerwald-Stadler Signed-off-by: Greg Kroah-Hartman

staging: add missing SPDX lines to Makefile files

2019-04-03T09:10:15Z

There are a few remaining drivers/staging/*/Makefile files that do not have SPDX identifiers in them. Add the correct GPL-2.0 identifier to them to make scanning tools happy. Reviewed-by: Mukesh Ojha Signed-off-by: Greg Kroah-Hartman

staging: add missing SPDX lines to Kconfig files

2019-04-03T09:10:15Z

There are a few remaining drivers/staging/*/Kconfig files that do not have SPDX identifiers in them. Add the correct GPL-2.0 identifier to them to make scanning tools happy. Signed-off-by: Greg Kroah-Hartman

staging:iio:ad2s90: Move out of staging

2018-12-01T15:40:39Z

Move ad2s90 resolver driver out of staging to the main tree. Signed-off-by: Matheus Tavares Signed-off-by: Victor Colombo Acked-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron