This was used out-of-tree as a hack for resolving issues where some systems expect the backlight to turn on automatically at boot, while others expect to manage the backlight status via a DRM/panel driver. Those issues have since been fixed upstream in pwm_bl.c without device tree hacks, and so this un-documented property should no longer be useful. Signed-off-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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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.
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