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5725bce709
Original sample-card assumes SND_SOC_CLOCK_IN is used for snd_soc_dai_set_sysclk(), but someday, Codec uses SND_SOC_CLOCK_IN and CPU uses SND_SOC_CLOCK_OUT at hw_params(), and dai->clk_direction is used at simple_init_dai(). There is no uniformity today. Let's use dai->clk_direction for all cases. Fortunately, almost all DAI doesn't care about "dir" (= SND_SOC_CLOCK_IN/OUT) in .set_sysclk callback function (which is called in snd_soc_dai_set_sysclk()), so this patch has no effect in such DAIs. But this patch might breaks some existing Sound Card. Use "system-clock-direction-out" property if it needs to use SND_SOC_CLOCK_OUT Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://patch.msgid.link/87y10lu0gx.wl-kuninori.morimoto.gx@renesas.com 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 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.