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The ROHM BD79703 needs to identify a channel which we are reading from in the SPI transfers. This can be seen as an address for the device. For the bd79703 the address is nicely aligned with the channel number, so the driver uses the channel ID for the SPI transfers. This, however, does not need to be the case. The iio_chan_spec has a separate 'address' field, which we can populate directly with this information. This helps adding new ICs like the ROHM BD79702 where the channel ID is different from this address to be handled by this driver, so we don't need to have separate, IC specific mapping for channel numbers <=> addresses. Make the 'address' field in the iio_chan_spec to contain the SPI protocol address for the channel, and use this value in the transfers. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/e53cb4120d16a3c678e1f391b600af630d6767ce.1743576022.git.mazziesaccount@gmail.com 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 reStructuredText 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.