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b2fc1c08f7
When two (or more) amplifiers are on the same link, the integrator may: a) assign dedicated slots for each of the amplifiers. b) provide the same configuration to all amplifiers, and rely on additional controls/processing in the amplifier to generate different outputs. case a) was the initial direction for SoundWire and is required for amplifiers with limited capabilities, but to deal with orientation or 'posture' changes it's easier to implement case b) when the amplifier can deal with multiple channels. This patchset suggest the use of the set_tdm_slot() API to define which of the channels will be consumed by what amplifiers. This maps well with SoundWire's 'ChannelEnable' registers. The notion of slot_width is however irrelevant here and ignored, and SoundWire ports are typically single direction, so only one of the two masks shall be used. Pierre-Louis Bossart (2): ASoC: rt1308-sdw: add set_tdm_slot() support ASoC: rt1308-sdw: use slot and rx_mask to configure stream sound/soc/codecs/rt1308-sdw.c | 38 +++++++++++++++++++++++++++++++---- sound/soc/codecs/rt1308-sdw.h | 2 ++ 2 files changed, 36 insertions(+), 4 deletions(-) -- 2.20.1
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.