mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-04-29 08:12:41 -04:00
227c23b5de
The power button (SW2) on Odroid XU3/4 is connected to the PWRON pin of the S2MPS11 PMIC. The S2MPS11 datasheet says that ONOB pin operates as 'PWRON key active low signal'. In fact, S2MPS11 PMIC acts as a 16ms debouce filter and signal inverter, thus effectively repeating PWRON (active high) to ONOB pin (active low). ONOB PMIC pin is then connected to XEINT3 SoC pin, so we get the state of the power button on the gpx0-3 GPIO. This patch adds device-tree bindings for the power button of Odroid XU3/4 boards. Signed-off-by: Brian Kim <brian.kim@hardkernel.com> [mszyprow: extended commit message, added comments and fixed minor issues in the dts] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Anand Moon <linux.amoon@gmail.com> Tested-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.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.