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commit3753fcc229upstream. Maris found out that the quirk for TEAC devices to work around the clock setup is needed to apply only when the base clock is changed, e.g. from 48000-based clocks (48000, 96000, 192000, 384000) to 44100-based clocks (44100, 88200, 176400, 352800), or vice versa, while switching to another clock with the same base clock doesn't need the (forcible) interface setup. This patch implements the optimization for the TEAC clock quirk to avoid the unnecessary interface re-setup. Fixes:5ce0b06ae5("ALSA: usb-audio: Workaround for clock setup on TEAC devices") Reported-by: Maris Abele <maris7abele@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220531130749.30357-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.