Mika Westerberg
a60eac3239
Currently we always have direct mapping between GPIO numbers and the hardware pin numbers. However, there are cases where that's not the case anymore (more about this in the next patch). Instead we need to be able to specify custom GPIO base for certain pad groups. To support this, add a new field (gpio_base) to the pad group structure and update the core Intel pinctrl driver to handle this accordingly. Passing 0 as gpio_base will use direct mapping so the existing drivers do not need to be modified. Passing -1 excludes the whole pad group from having GPIO mapping. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@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.