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* iio: expose shared parameter in IIO_ENUM_AVAILABLEAntoniu Miclaus2021-11-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The shared parameter should be configurable based on its usage, and not constrained to IIO_SHARED_BY_TYPE. This patch aims to improve the flexibility in using the IIO_ENUM_AVAILABLE define and avoid redefining custom iio enums that expose the shared parameter. An example is the ad5766.c driver where IIO_ENUM_AVAILABLE_SHARED was defined in order to achieve `shared` parameter customization. The current state of the IIO_ENUM_AVAILABLE implementation will imply similar redefinitions each time a driver will require access to the `shared` parameter. An example would be admv1013 driver which will require custom device attribute for the frequency translation modes: Quadrature I/Q mode and Intermediate Frequency mode. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com> Link: https://lore.kernel.org/r/20211119085627.6348-1-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: dac: ti-dac5571: fix an error code in probe()Dan Carpenter2021-09-141-0/+1
| | | | | | | | | | If we have an unexpected number of channels then return -EINVAL instead of returning success. Fixes: df38a4a72a3b ("iio: dac: add TI DAC5571 family support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20210816183954.GB2068@kili Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: dac: Convert powerdown read callbacks to sysfs_emit()Lars-Peter Clausen2021-03-291-1/+1
| | | | | | | | | | | | Update DAC drivers powerdown attribute show callback to use the new sysfs_emit() function. sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it knows about the sysfs buffer specifics and has some built-in sanity checks. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20210320071405.9347-5-lars@metafoo.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio:dac:ti-dac5571: Drop of_match_ptr and CONFIG_OF protectionsJonathan Cameron2020-09-211-5/+2
| | | | | | | | | | | These prevent the use of this driver with ACPI via PRP0001 and are an example of an anti pattern I'm trying to remove from IIO. Hence drop them from this driver. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Link: https://lore.kernel.org/r/20200910173242.621168-16-jic23@kernel.org
* iio: dac: dac5571: Support powerdown for multi-channelVincent Whitchurch2020-09-031-14/+15
| | | | | | | | | | | The driver currently only allows channel 0 to be powered down but the multi-channel variants of the hardware allow each channel to be powered down separately and with separate power down modes. Add support for this. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Acked-by: Sean Nyekjaer <sean@geanix.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* Replace HTTP links with HTTPS ones: drivers/iioAlexander A. Klimov2020-07-131-9/+9
| | | | | | | | | | | | | | | | | | | Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: Remove superfluous of_node assignmentsLars-Peter Clausen2020-06-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a driver does not assign an of_node to a IIO device to IIO core will automatically assign the of_node of the parent device. This automatic assignment is done in the iio_device_register() function. There is a fair amount of drivers that currently manually assign the of_node of the IIO device. All but 4 of them can make use of the automatic assignment though. The exceptions are: * mxs-lradc-adc: Which uses the of_node of the parent of the parent. * stm32-dfsdm-adc, stm32-adc and stm32-dac: Which reference the of_node assigned to the IIO device before iio_device_register() is called. All other drivers are updated to use automatic assignment. This reduces the amount of boilerplate code involved in setting up the IIO device. The patch has mostly been auto-generated with the following semantic patch // <smpl> @exists@ expression indio_dev; expression parent; @@ indio_dev = \(devm_iio_device_alloc\|iio_device_alloc\)(&parent, ...) ... -indio_dev->dev.of_node = parent.of_node; @exists@ expression indio_dev; expression parent; @@ indio_dev = \(devm_iio_device_alloc\|iio_device_alloc\)(parent, ...) ... -indio_dev->dev.of_node = parent->of_node; // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: remove explicit IIO device parent assignmentAlexandru Ardelean2020-06-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: dac: ti-dac5571: Update the module author email addressSean Nyekjaer2019-04-041-1/+1
| | | | | | | Update the module author to the current email address Signed-off-by: Sean Nyekjaer <sean@geanix.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: dac: ti-dac5571: provide of_match_table to driverMarcus Folkesson2018-08-251-0/+1
| | | | | | | Use the created list of of_device_id's as a match table. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: dac: ti-dac5571 remove redundant variable 'shift'Colin Ian King2018-07-071-6/+0
| | | | | | | | | | | | Variable shift is being assigned but is never used hence it is redundant and can be removed. Cleans up two clang warnings: warning: variable ‘shift’ set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: dac: add TI DAC5571 family supportSean Nyekjaer2018-05-061-0/+439
This patch adds support for the Texas Intruments DAC5571 Family. Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>