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5c0ddb4e71
The TX2 SoM's SDIO WiFI card is connected via mmc@3440000 however it does not look like the upstream kernel is even bothering to power this (and the regulator framework shuts down this power rail post kernel init). The issue seems to be a missing link for vccq from the MAX77620 PMIC's LDO5 which is labeled vddio_sdmmc3 (and not used anywhere else) to the mmc@3440000 node to ensure there is at leasr bus power. Note this does not fix the WiFi issue on upstream kernels, there is still something else missing that gets the BCM WiFi device to detect properly. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Thierry Reding <treding@nvidia.com>
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.