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Testing on a imx6dl board with a QCA9377 SDIO Wifi chip shows that the QCA9377 firmware takes more than three minutes to start getting loaded, which is a very inconvenient behavior. CONFIG_FW_LOADER_USER_HELPER and CONFIG_FW_LOADER_USER_HELPER_FALLBACK were selected by commit30fdd51be1("ARM: imx_v6_v7_defconfig: add CONFIG_FW_LOADER_USER_HELPER") By removing the CONFIG_FW_LOADER_USER_HELPER and CONFIG_FW_LOADER_USER_HELPER_FALLBACK options the QCA9377 firmware is loaded around 10 seconds after boot, which is the expected behavior. The motivation for commit30fdd51be1("ARM: imx_v6_v7_defconfig: add CONFIG_FW_LOADER_USER_HELPER") was related to loading the SDMA firmware,and at the time of that commit, the SDMA driver was loaded as built-in. Now that the SDMA driver is selected as a kernel module, its firmware can be successfully loaded as well without the need of CONFIG_FW_LOADER_USER_HELPER and CONFIG_FW_LOADER_USER_HELPER_FALLBACK. Remove the selection of these two options. Also, successfully tested the loading of the VPU firmware without these options. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Shawn Guo <shawnguo@kernel.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.