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Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch to Common Clock Framework, otherwise the following is visible: WARNING: CPU: 0 PID: 97 at drivers/clk/clk.c:1011 clk_core_enable+0x9c/0xbc Enabling unprepared mclk ... Hardware name: Cirrus Logic EDB9302 Evaluation Board ... clk_core_enable clk_core_enable_lock ep93xx_i2s_hw_params snd_soc_dai_hw_params soc_pcm_hw_params snd_pcm_hw_params snd_pcm_ioctl ... Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20211018103105.146380-2-alexander.sverdlin@gmail.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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.