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9c648ef82d
The I2S reset may be asserted at a boot time, in particular this is the case on Tegra20 AC100 netbook. Tegra20 I2S driver doesn't manage the reset control and currently it happens to work because reset is implicitly deasserted by the tegra-clk driver when I2S clock is enabled. The I2S permanently stays in a reset once tegra-clk is fixed to not touch the resets, which it shouldn't be doing. Add reset control to the Tegra20 I2S driver. Note that I2S reset was always specified in Tegra20 device-tree, hence DTB ABI changes aren't required. Tested-by: Paul Fertser <fercerpav@gmail.com> # T20 AC100 Reported-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20210314154459.15375-3-digetx@gmail.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 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.