kernel/linux.git/include/linux/iio/imu, branch v5.10.28

iio: adis. Drop adis_burst struct

2020-09-21T19:01:45+00:00

As there are no users anymore of this structure, it can be safely removed. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron Link: https://lore.kernel.org/r/20200917155223.218500-5-nuno.sa@analog.com

iio: adis: Move burst mode into adis_data

2020-09-21T19:01:45+00:00

Add burst mode variables in the per device specific data structure. As some drivers support multiple devices with different burst sizes it makes sense this data to be in `adis_data`. While moving the variables, there are two main differences: 1. The `en`variable is dropped. If a device supports burst mode, it will just use it as it will has better performance for almost all real use cases. 2. Replace `extra_len` by `burst_len`. Users should now explicitly define the length of the burst buffer as it is typically constant. This also allows to remove the following line from the library: ``` /* All but the timestamp channel */ burst_length = (indio_dev->num_channels - 1) * sizeof(u16); ``` The library should not assume that a timestamp channel is defined. Moreover, most parts also include some diagnostic data, crc, etc.. in the burst buffer that needed to be included in an `extra_len` variable which is not that nice. On top of this, some devices already start to have some 32bit size channels ... This patch is also a move to completely drop the `struct adis_burst` from the library. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron Link: https://lore.kernel.org/r/20200917155223.218500-2-nuno.sa@analog.com

iio: adis: Drop non Managed device functions

2020-09-16T18:06:10+00:00

Drop `adis_setup_buffer_and_trigger()`. All users were updated to use the devm version of this function. This avoids having almost the same code repeated. Signed-off-by: Nuno Sá Link: https://lore.kernel.org/r/20200915120258.161587-11-nuno.sa@analog.com Signed-off-by: Jonathan Cameron

iio: adis: Support different burst sizes

2020-04-25T15:11:56+00:00

Add burst_max_len to `adis_burst`. This is useful for devices which support different burst modes with different sizes. The buffer to be used in the spi transfer is allocated with this variable making sure that has space for all burst modes. The spi transfer length should hold the "real" burst length depending on the current burst mode configured in the device. Moreover, `extra_len` in `adis_burst` is made const and it should contain the smallest extra length necessary for a burst transfer. In `struct adis` was added a new `burst_extra_len` that should hold the extra bytes needed depending on the device instance being used. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: adis: Add adis_update_bits() APIs

2020-04-25T15:10:44+00:00

This patch adds a `regmap_update_bits()` like API to the ADIS library. It provides locked and unlocked variant. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: imu: adis: Add irq flag variable

2020-04-25T15:09:30+00:00

There are some ADIS devices that can configure the data ready pin polarity. Hence, we cannot hardcode our IRQ mask as IRQF_TRIGGER_RISING since we might want to have it as IRQF_TRIGGER_FALLING. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: imu: adis: Add Managed device functions

2020-04-25T15:08:06+00:00

This patch adds support for a managed device version of adis_setup_buffer_and_trigger. It works exactly as the original one but it calls all the devm_iio_* functions to setup an iio buffer and trigger. Hence we do not need to care about cleaning those and we do not need to support a remove() callback for every driver using the adis library. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: imu: adis: add a note better explaining state_lock

2020-03-08T17:28:51+00:00

The 'state_lock' mutex was renamed from 'txrx_lock' in a previous patch and is intended to be used by ADIS drivers to protect the state of devices during consecutive R/W ops. The initial patch that introduced this change did not do a good [well, any] job at explaining this. This patch adds a comment to the 'state_lock' better explaining it's use. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

iio: imu: adis: update 'adis_data' struct doc-string

2020-03-08T17:28:50+00:00

The doc-string has been neglected over time. This change updates it with all the missing info. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

iio: imu: adis: add doc-string for 'adis' struct

2020-03-08T17:28:46+00:00

This change adds a doc-string for the 'adis' struct. It details the fields and their roles. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron