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8b34a2895b
Driver uses GPIO functions but doesn't include the header explcitly. Add that to fix build errors when GPIOLIB is disabled. drivers/phy/allwinner/phy-sun4i-usb.c:367:11: error: implicit declaration of function ‘gpiod_get_value_cansleep’; did you mean ‘gpio_get_value_cansleep’? [-Werror=implicit-function-declaration] drivers/phy/allwinner/phy-sun4i-usb.c:707:22: error: implicit declaration of function ‘devm_gpiod_get_optional’; did you mean ‘devm_clk_get_optional’? [-Werror=implicit-function-declaration] drivers/phy/allwinner/phy-sun4i-usb.c:708:11: error: ‘GPIOD_IN’ undeclared (first use in this function); did you mean ‘GPIOF_IN’? drivers/phy/allwinner/phy-sun4i-usb.c:815:21: error: implicit declaration of function ‘gpiod_to_irq’; did you mean ‘gpio_to_irq’? [-Werror=implicit-function-declaration] Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Link: https://lore.kernel.org/r/20200716062427.71763-1-vkoul@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.