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This IP provides the write protect signal level in the status register, but it is also possible to use GPIO for WP. They are exclusive, so it is not efficient to call mmc_gpio_get_ro() every time from tmio_mmc_get_ro() if we know gpio_ro is not used. Check the capability of gpio_ro just once in the probe function, then set mmc_gpio_get_ro to .get_ro if it is the case. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.