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The period_bytes_min parameter and the buffer_bytes minimum constraint made no sense at all, as they didn't reflect any hardware limitation. Instead, apply a frame-based period_size minimum constraint, which is derived from the cache size (it would be actually possible to go below that, but it would require special handling, and it would be practically impossible to keep up with the IRQ rate anyway). Sync up the constraints of the EFX playback with those of the regular playback, as there is no reason for them to diverge. N.b., the maximum buffer size is actually arbitrary - the hardware could go waay beyond 128 KiB. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230518092224.3696958-9-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.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.