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Selecting a symbol with additional dependencies requires adding the same dependency here: WARNING: unmet direct dependencies detected for MUX_MMIO Depends on [n]: MULTIPLEXER [=y] && OF [=n] Selected by [y]: - SPI_DW_BT1 [=y] && SPI [=y] && SPI_MASTER [=y] && SPI_DESIGNWARE [=y] && (MIPS_BAIKAL_T1 || COMPILE_TEST [=y]) Drop the 'select' here to avoid the problem. Anyone using the dw-bt1 SPI driver should make sure they include the mux driver as well now. Fixes:7218838109("spi: dw-bt1: Fix undefined devm_mux_control_get symbol") Fixes:abf0090753("spi: dw: Add Baikal-T1 SPI Controller glue driver") Link: https://lore.kernel.org/all/20221218192523.c6vnfo26ua6xqf26@mobilestation/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Link: https://lore.kernel.org/r/20230130140156.3620863-1-arnd@kernel.org Signed-off-by: Mark Brown <broonie@kernel.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.