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a7e6dbd6ac
Pinephone Pro includes a AzureWave AW-CM256SM wifi (sdio0) and
bt (uart0) combo module, which is based on Cypress
CYP43455 (BCM43455).
The CYP43455 datasheet ("Power-Up Sequence and Timing") documents:
* needing to wait 10ms between consecutive WL_REG_ON toggles
* needing to wait 110ms between power-on and SDIO access.
Signed-off-by: Tom Fitzhenry <tom@tom-fitzhenry.me.uk>
Reviewed-by: Ondřej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20221002092809.451501-1-tom@tom-fitzhenry.me.uk
Signed-off-by: Heiko Stuebner <heiko@sntech.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.