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Some Bosch accelerometers have two interrupt pins (INT1 and INT2). At the moment, the driver uses only the first one, which is fine for most situations. However, some boards might only have INT2 connected for some reason. Add the necessary bits and configuration to set up INT2. Then try to detect this situation at least for device tree setups by checking if the first interrupt (the one picked by the I2C/SPI core) is actually named "INT2" using the interrupt-names property. of_irq_get_byname() returns either 0 or some error code in case the driver probed without device tree, so in all other cases we fall back to configuring INT1 as before. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210802155657.102766-4-stephan@gerhold.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.