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MFD_CORE is selected by MFD_HI6421_SPMI, and MFD_CORE depends on HAS_IOMEM. If HAS_IOMEM is not set, this can cause a conflict in Kconfig resolution, yielding the following error: WARNING: unmet direct dependencies detected for MFD_CORE Depends on [n]: HAS_IOMEM [=n] Selected by [y]: - MFD_HI6421_SPMI [=y] && STAGING [=y] && OF [=y] && SPMI [=y] By specifying HAS_IOMEM as a dependency for MFD_HI6421_SPMI (as SPMI_HISI3670 already dows), this issue is resolved, and no such warning appears when building on architectures without HAS_IOMEM. Signed-off-by: David Gow <davidgow@google.com> Link: https://lore.kernel.org/r/20201119082903.3601758-1-davidgow@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.