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0dc25a11b8
The "grf" clock is optional for Rockchip eDP controller(RK3399 needs while RK3288 and RK3588 do not). It can make the code more concise to use devm_clk_get_optional() instead of devm_clk_get() with extra checks. In addtion, DRM_DEV_ERROR() is replaced by dev_err_probe(). Signed-off-by: Damon Ding <damon.ding@rock-chips.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250928103734.4007257-1-damon.ding@rock-chips.com
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 reStructuredText 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.