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path: root/drivers/iio/potentiometer/ad5272.c
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2020-12-03iio: potentiometer: ad5272: Correct polarity of resetPhil Reid
The driver should assert reset by setting the gpio high, and then release it by setting it the gpio low. This allows the device tree (or other hardware definition) to specify how the gpio is configured. For example as open drain or push-pull depending on the connected hardware. Signed-off-by: Phil Reid <preid@electromag.com.au> Link: https://lore.kernel.org/r/20201124050014.4453-1-preid@electromag.com.au Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-17iio:potentiometer:ad5272: Drop of_match_ptr and CONFIG_OF protections.Jonathan Cameron
These prevent use of this driver with ACPI via PRP0001 and are an example of an anti pattern I'm trying to remove from IIO. Drop them to remove this restriction. Also added mod_devicetable.h include given use of struct of_device_id which is defined in that header. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Phil Reid <preid@eletromag.com.au> Link: https://lore.kernel.org/r/20200910173242.621168-2-jic23@kernel.org
2020-07-13Replace HTTP links with HTTPS ones: drivers/iioAlexander A. Klimov
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>
2020-06-14iio: remove explicit IIO device parent assignmentAlexandru Ardelean
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>
2018-02-10iio: ad5272: Add support for Analog Devices digital potentiometersPhil Reid
Add implementation for Analog Devices AD5272 and AD5274 digital potentiometer devices. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>