d70be079c3
+-- ULCB -------------------+ |+--------+ +--------+| || SSI0| <---> |ak4613 || || SSI1| <---> | || || | +--------+| || | +--------+| || SSI2| <---> |HDMI || || | +--------+| || SSI3| <--+ | || SSI4| <-+| | |+--------+ || | +-------------||------------+ +-- Kingfisher -------------+ | || +--------+| | |+->|pcm3168a|| | +-->| || | +--------+| +---------------------------+ On UCLB/KF, we intuitively think we want to handle these as "2 Sound Cards": card0,0: 1st sound of ULCB (SSI0 - ak4613) card0,1: 2nd sound of ULCB (SSI2 - HDMI) card1,0: 1st sound of KF (SSI3 - pcm3168a) ^ ^ However, because of ASoC Component vs. Card framework limitations, we needed to handle this as "1 big Sound Card": card0,0: 1st sound of ULCB/KF (SSI0 - ak4613) card0,1: 2nd sound of ULCB/KF (SSI2 - HDMI) card0,2: 3rd sound of ULCB/KF (SSI3 - pcm3168a) ^ ^ Now ASoC supports multi Component, which allows us to handle "2 Sound Cards" such as "ULCB Sound Card" and "Kingfisher Sound Card", all ULCB/KF Audio dtsi can be updated. Note that this changes the Sound Card specification method from userland, especially for Kingfisher Sound. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87fs382yhk.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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.